All Wiring Diagrams for Audi A4 2009

AIR CONDITIONING

Automatic A/C Wiring Diagram, Basic (1 of 2) for Audi A4 2009

List of elements for Automatic A/C Wiring Diagram, Basic (1 of 2) for Audi A4 2009:

• (a4: left side of center tunnel) g687
• 10a
• 12a
• 3.2l
• A/c compressor regulator valve (a4: rear of a/c compressor)
• A/c pressure/ temperature sensor (a4: left side of condenser)
• Air flow flap motor
• Brake light switch (s4: top of brake pedal assembly)
• Center outlet temperature sensor
• Center vent adjustment motor
• Climatronic control module
• Computer data lines system
• Coolant pump
• Coolant pump (if equipped)
• Defroster door motor (a4: left side of a/c unit)
• Driver's side fuse panel (a4: behind left end of dash)
• Evaporator vent temperature sensor (a4: in evaporator housing)
• Except 3.2l
• Footwell flap motor
• Footwell outlet temperature sensor
• Fuse 10a
• Fuse 40a
• Fuse 5a
• Fuse carrier
• G638 (a4: behind right kick panel)
• G639 (a4: behind left kick panel)
• Hot at all times
• Info not available
• Nca
• Outside air temperature sensor (a4: behind front grille)
• Passenger's side fuse panel (a4: behind right end of dash)
• Recirculation door motor (a4: left side of air intake housing)
• Red
• Sunlight photo sensor (a4: under center of dash)
• T16b
• T16i
• T17i
• T20e
• T32b
• Temperature regulator flap motor
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)

Automatic A/C Wiring Diagram, Basic (2 of 2) for Audi A4 2009

List of elements for Automatic A/C Wiring Diagram, Basic (2 of 2) for Audi A4 2009:

• (m/t) (a/t)
• 11a
• 2.ol
• 3.2l
• After run coolant pump (a4: lower left side of engine)
• Auxiliary engine coolant pump relay (3.2l) coolant circulation pump relay (2.0l) (2.0l a4: on e-box relay/fuse carrier) (2.0l s4: in e-box in plenum chamber)
• Battery jump start terminal (a4: middle of engine compt plenum chamber)
• Climatronic refrigerant shut-off valve (a4: on refrigerant tube)
• Computer data lines system
• Coolant fan
• Coolant fan 2 (a/t)
• Coolant fan control (fc) module (s4: at radiator fan)
• Driver's side fuse panel (a4: behind left end of dash)
• E box relay/ fuse carrier (a4: in plenum chamber electronics box)
• Engine control module (ecm) (a4: left side of engine compt plenum chamber) (s4: in e-box, in plenum chamber)
• Engine coolant level (ecl) sensor
• Engine coolant temperature (ect) sensor (a4/2.0l: lower left rear of engine) (a4/3.2l: top front of engine) (s4: rear of engine)
• Fresh air blower (a4: under right side of air intake housing)
• Fresh air blower control module (a4: lower right side of air intake housing) (s4: integral to fresh air blower motor)
• Fuse 1 40a 60a
• Fuse 15a
• Fuse 5a
• Fuse carrier
• G12 (left rear of engine compt)
• G671 (a4: on left front long member)
• G687 (a4: left side of center tunnel)
• Hot at all times
• Instrument cluster control module
• Nca
• Power distribution system
• Recirculation pump relay (3.2l)
• Red
• T32b
• T32f
• T60
• T94

Automatic A/C Wiring Diagram, Comfort (1 of 3) for Audi A4 2009

List of elements for Automatic A/C Wiring Diagram, Comfort (1 of 3) for Audi A4 2009:

• 10a
• 3.2l
• Air flow flap motor
• Brake light switch (s4: top of brake pedal assembly)
• Climatronic control module
• Computer data lines system
• Coolant pump
• Coolant pump (if equipped)
• Defroster door motor (a4: left side of a/c unit)
• Except 3.2l
• Fuse 10a
• Fuse 40a
• Fuse carrier
• G638 (a4: behind right kick panel)
• G687 (a4: left side of center tunnel)
• Hot at all times
• Info not available
• Instrument cluster control module
• Interior lights system
• Left center vent motor
• Left footwell door motor (a4: left side of a/c unit)
• Left temperature door motor (a4: left side of a/c unit)
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Rear temperature flap motor
• Rear temperature selection potentiometer
• Recirculation door motor (a4: left side of air intake housing)
• Red
• Right center vent motor (a4: left side of air intake housing)
• Right footwell door motor (a4: lower left side of air intake housing)
• Right temperature door motor (a4: top left side of air intake housing)
• Sunlight photo sensor (a4: under center of dash)
• T16i
• T20e
• T32f

Automatic A/C Wiring Diagram, Comfort (2 of 3) for Audi A4 2009

List of elements for Automatic A/C Wiring Diagram, Comfort (2 of 3) for Audi A4 2009:

• (behind front grille) outside air temperature sensor
• 12a
• A/c pressure/ temperature sensor (a4: left side of condenser)
• Air quality sensor (a4: bottom of hvac unit)
• Automatic day/ night interior mirror
• Computer data lines system
• Driver's side fuse panel (a4: behind left end of dash)
• Evaporator vent temperature sensor (in evaporator housing)
• Fresh air blower (a4: under right side of air intake housing)
• Fresh air blower control module (a4: lower right side of air intake housing) (s4: integral to fresh air blower motor)
• Fuse 5a
• Fuse carrier
• G639 (a4: behind left kick panel)
• G687 (a4: left side of center tunnel)
• Humidity sensor
• Left footwell vent temperature sensor
• Left front upper body outlet temperature sensor (a4: left end of dash)
• Mirrors system
• Nca
• Right footwell vent temperature sensor
• Right front upper body outlet temperature sensor (a4: right end of dash)
• T16b
• T17i
• T32b
• T8c
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)

Automatic A/C Wiring Diagram, Comfort (3 of 3) for Audi A4 2009

List of elements for Automatic A/C Wiring Diagram, Comfort (3 of 3) for Audi A4 2009:

• (m/t) (a/t)
• 11a
• 2.ol
• 3.2l
• A/c compressor regulator valve (a4: rear of a/c compressor)
• After run coolant pump (a4: lower left side of engine)
• Battery jump start terminal (a4: middle of engine compt plenum chamber)
• Climatronic refrigerant shut-off valve (a4: on refrigerant tube)
• Coolant circulation pump relay (2.0l) (a4: on e-box relay/fuse carrier) (s4: in e-box in plenum chamber) auxiliary engine coolant pump relay (3.2l)
• Coolant fan
• Coolant fan 2 (a/t)
• Coolant fan control (fc) module (s4: at radiator fan)
• Driver's side fuse panel (a4: behind left end of dash)
• E-box relay/ fuse carrier (a4: in plenum chamber electronics box)
• Engine control module (ecm) (a4: left side of engine compt plenum chamber) (s4: in e-box, in plenum chamber)
• Engine coolant level (ecl) sensor
• Engine coolant temperature (ect) sensor (2.0l a4: lower left rear of engine) (3.2l a4: top front of engine) (s4: rear of engine)
• Fuse 1 40a 60a
• Fuse 15a
• Fuse 5a
• Fuse carrier
• G12 (left rear of engine compt)
• G671 (a4: on left front long member)
• Hot at all times
• Power distribution system
• Recirculation pump relay (3.2l)
• Red
• T32b
• T60
• T94

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram (1 of 2) for Audi A4 2009

List of elements for Anti-lock Brakes Wiring Diagram (1 of 2) for Audi A4 2009:

• (a4: on left front long member) g671
• (not used)
• 40a
• Abs control module (at left side of engine compt)
• Abs control module fuse 1
• Abs hydraulic pump
• Abs hydraulic unit
• Asr/esp button
• Auto hold button
• Computer data lines system
• Driving dynamics regulation high pressure switch valve 1
• Driving dynamics regulation high pressure switch valve 2
• Driving dynamics regulation switch valve 1
• Driving dynamics regulation switch valve 2
• Early production
• Electro-mechanical parking brake button
• Fuse 10a
• Fuse 5a
• Fuse carrier
• Fuse panel sc
• Fuse panel sd
• Fuse panel sf
• G671 (a4: on left front long member)
• Hot at all times
• Interior lights system
• Late production
• Left front abs inlet valve
• Left front abs outlet valve
• Left front abs wheel speed sensor
• Left rear abs inlet valve
• Left rear abs outlet valve
• Left rear abs wheel speed sensor
• Red
• Right front abs inlet valve
• Right front abs outlet valve
• Right front abs wheel speed sensor
• Right rear abs inlet valve
• Right rear abs outlet valve
• Right rear abs wheel speed sensor
• T17d

Anti-lock Brakes Wiring Diagram (2 of 2) for Audi A4 2009

List of elements for Anti-lock Brakes Wiring Diagram (2 of 2) for Audi A4 2009:

• (a4: behind left kick panel) g639
• (a4: on steering column, behind steering wheel) steering column electronic systems control module
• 10a
• 12a
• 15a
• 2.0l
• 3.2l
• Abs warning lamp
• Active steering control module (a4: under driver's seat)
• Asr/esp control lamp
• Brake light switch (s4: top of brake pedal assembly)
• Climatronic control module
• Comfort system central control module (a4: right side of trunk) (s4: below driver's seat)
• Computer data
• Computer data lines system
• Discontinued phased in modification
• Engine control module (ecm) (a4: left side of engine compt plenum chamber)
• Esp sensor unit
• Esp sensor unit 2 (w/ dynamic steering w/ gearbox quattro sport)
• Fuse 25a
• Fuse 5a
• Fuse carrier
• Fuse panel sc
• Fuse panel sd
• G687 (a4: left side of center tunnel)
• Hot at all times
• Instrument cluster control module
• Lines system
• Nca
• Steering angle sensor (a4: behind steering wheel.)
• T10h
• T20e
• T32c
• T32d
• T5d
• T8g
• T94

ANTI-THEFT

Anti-theft Wiring Diagram (1 of 2) for Audi A4 2009

List of elements for Anti-theft Wiring Diagram (1 of 2) for Audi A4 2009:

• (a4: in driver's door handle) (if equipped) left front outside door handle touch sensor
• (if equipped) right front outside door handle touch sensor
• 12a
• Alarm horn (s4: right side of convertible top compt)
• Antenna amplifier 3 (avant) (a4: left side of trunk)
• Antenna amplifier 3 (sedan) (a4: left side of trunk)
• Anti-theft alarm system sensor
• Central locking & anti-theft alarm system antenna
• Comfort system central control module (s4: below driver's seat)
• Computer data lines system
• Driver's side fuse panel (a4: behind left end of dash)
• Fuse 5a
• Fuse carrier 2
• Fuse carrier 3
• G51 (a4: right side of luggage compt)
• G61 (a4: avant behind left quarterpanel) (a4 sedan: left "c"pillar)
• G639 (a4: behind left kick panel)
• Hot at all times
• Interior access/ start authorization antenna 1 (a4: under front of center console)
• Left access/start authorization antenna (if equipped) (a4: in left "b"pillar)
• Luggage compartment access/start authorization antenna (a4: left front of luggage compt)
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Power tops system
• T17o
• T32c
• T32d
• T32e
• W/ mmi
• W/o mmi

Anti-theft Wiring Diagram (2 of 2) for Audi A4 2009

List of elements for Anti-theft Wiring Diagram (2 of 2) for Audi A4 2009:

• (a4: behind left kick panel) g639
• (a4: on shifter unit) a/t selector lever sensor system control module
• (a4: right side of center tunnel) g688
• (s4: in lock carrier) front hood switch
• (w/ start/stop button) access/start authorization button
• A/t
• Access/start authorization switch
• Alarm system off switch
• Avant
• Computer data lines system
• Driver's door control module (a4: in driver's front door) (s4: integrated in driver's door window regulator motor)
• Electronic steering column lock control module (a4: near steering column)
• G51 (a4: right side of luggage compt)
• G639 (a4: behind left kick panel)
• G654 (a4: top of right "d" pillar)
• G687 (a4 avant & sedan: left side of center tunnel)
• G730 (a4: base of right "c" pillar)
• Headlights system
• Horns system
• Interior lights system
• Left rear outside door control module (if equipped)
• Right rear outside door handle touch sensor (if equipped)
• Sedan
• T17m
• T20f
• T32b
• T32j
• Trunk lid alarm switch/rear lid central locking system motor
• Trunk lid alarm switch/rear lid central locking system motor (avant)
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)

BODY CONTROL MODULES

Comfort System Central Control Module Wiring Diagram for Audi A4 2009

List of elements for Comfort System Central Control Module Wiring Diagram for Audi A4 2009:

• 10a
• 11a
• Anti-lock brakes system
• Anti-theft system
• Comfort system control module (a4: right side of trunk) (s4: below driver's seat)
• Computer data lines system
• Cruise control system
• Defogger system
• Door locks system
• Engine controls system
• Exterior lights system
• Fuse 20a
• Fuse 30a
• Fuse carrier 2
• G51 (a4: right side of luggage compt)
• Hot at all times
• Interior lights system
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Nca
• Power distribution system
• Power tops & anti-theft systems
• Power windows system
• Shift interlock system
• T17o
• T17p
• T32c
• T32d
• T32e
• Transmissions system
• Trunk, tailgate, fuel doors system

Steering Column Electronic Systems Control Module Wiring Diagram for Audi A4 2009

List of elements for Steering Column Electronic Systems Control Module Wiring Diagram for Audi A4 2009:

• 12a
• Air bag control module (a4: below center console) (s4: under front center console)
• Air bag spiral spring/ return spring (w/ slip ring)
• Computer data lines system
• Cruise control switch
• Driver's air bag igniter
• Driver's air bag igniter 2
• Engine controls system
• Fuse 5a
• Fuse carrier 1
• Fuse carrier 2
• G687 (a4: left side of center tunnel)
• Hot at all times
• Left multi- function buttons
• Mode
• Multi-function steering wheel control module
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Right multi-function buttons
• Signal horn activation
• Steering angle sensor (a4: behind steering wheel)
• Steering column electronic systems control module (a4: on steering column, behind steering wheel)
• Steering wheel control module
• Steering wheel vibration motor (w/ directional stabilization assistance)
• Tiptronic downshift button (if equipped)
• Tiptronic upshift button (if equipped)
• Turn signal switch
• W/ directional stabilization assistance
• W/ tiptronic
• Windshield wiper/ washer switch

Vehicle Electrical System Control Module Wiring Diagram for Audi A4 2009

List of elements for Vehicle Electrical System Control Module Wiring Diagram for Audi A4 2009:

• 10a
• Air conditioning & seats systems
• Air conditioning system
• Anti-theft system
• Computer data lines system
• Driver's side fuse panel (a4: behind left end of dash)
• Engine controls system
• Exterior lights system
• Fuse 20a
• Fuse 30a
• Fuse 35a
• Fuse 5a
• Fuse carrier 1
• Fuse carrier 2
• Fuse carrier 3
• G639 (a4: behind left kick panel)
• G688 (a4: right side of center tunnel)
• Headlights system
• Horns system
• Hot at all times
• Instrument cluster system
• Interior lights system
• Left rear seat head restraint adjustment button
• Power windows system
• Seats system
• Shift interlock system
• T16b
• T17l
• T17m
• T17n
• T32a
• T32b
• T6f
• Transmissions system
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)
• Warning systems
• Wiper/washer system

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram (1 of 3) for Audi A4 2009

List of elements for Computer Data Lines Wiring Diagram (1 of 3) for Audi A4 2009:

• (a4: left side of center tunnel) g687
• 11a
• Abs control module (left side of engine compt)
• Active steering control module (w/ dynamic steering & gear box quattro sport) (a4: under driver's seat)
• Air bag control module (a4: below center console) (s4: under front of center console)
• All wheel drive control module
• Automatic day/ night interior mirror
• Battery monitoring control module (a4: middle of luggage compt, on battery)
• Data bus on board diagnostic interface (a4: behind center of dash)
• Data link connector
• Direct shift gearbox (dsg) mechatronic (if equipped)
• Directional stabilization assistance control module
• Distance regulation control module (if equipped)
• Electronic damping control module (a4: right side of trunk)
• Engine control module (a4: left side of engine compt plenum chamber)
• Esp sensor unit
• Esp sensor unit 2 (w/ dynamic steering & gear box quattro sport)
• Fuse 10a
• Fuse 5a
• Fuse carrier 1
• Fuse carrier 2
• G687 (a4: left side of center tunnel)
• Generator & voltage regulator
• Headlamp range/ cornering lamp control module (a4: behind glove box)
• Hot at all times
• Lane change assistance control module (if equipped) (a4: on left taillight assembly)
• Lane change assistance control module 2 (a4: on right taillight assembly)
• Late production
• Left headlamp assembly
• Multitronic
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Phased in modification
• Right headlamp assembly
• Sound systems
• T10h
• T94
• Transmission control module (s4: on rear of transmission) (a4: in mechatronic unit)
• Voltage stabilizer (w/ engine start/ stop system)
• W/ directional stabilization assistance
• W/o direct shift gear box

Computer Data Lines Wiring Diagram (2 of 3) for Audi A4 2009

List of elements for Computer Data Lines Wiring Diagram (2 of 3) for Audi A4 2009:

• (a4: bottom of hvac unit) (comfort) air quality sensor
• (a4: center front of roof) (avant) power sunroof control module
• (a4: center front of roof) (sedan) power sunroof control module
• (a4: left side of condenser)
• (avant) roof blind control module
• (s4: behind right side front bumper cover) (a4: behind center of front grille) garage door opener control module
• 10h
• 10l
• 11h
• 11l
• 12h
• 12l
• 13h
• 13l
• 14h
• 14l
• 15h
• 15l
• 16h
• 16l
• 17h
• 17l
• 18h
• 18l
• 19h
• 19l
• 20h
• 20l
• 21h
• 21l
• 22h
• 22l
• 23h
• 23l
• A/c pressure/ temperature sensor
• Anti-theft alarm system sensor
• Base
• Cd changer & dvd changer
• Charisma switch module
• Digital radio (dab) (if equipped)
• Digital sound system control module (a4 avant: left rear of cargo area) (a4 sedan: left rear of trunk)
• Driver's door control module (a4: in driver's front door) (s4: integrated in driver's door window regulator motor)
• Driver's side can seperating plug
• Front information display control head control module (a4: behind glove box)
• Garage door opener control head
• Information electronics control module 1
• Memory seat/ steering column adjustment control module (a4: under driver's seat)
• Navigation system w/ cd drive control module (a4: left rear of trunk) (s4: left side of luggage compt)
• Premium
• Satellite radio (if equipped) (a4: left rear of trunk)
• T16b
• T18b
• T20f
• T32g
• T32h
• T8ah
• Telephone transceiver (a4: under front passenger's seat)
• Tv tuner (a4: left side of trunk)
• Vehicle electrical system control module (s4: behind driver's storage compt) (a4: behind left side of dash)
• W/ mmi basic
• W/ mmi high

Computer Data Lines Wiring Diagram (3 of 3) for Audi A4 2009

List of elements for Computer Data Lines Wiring Diagram (3 of 3) for Audi A4 2009:

• (a4: right side of trunk) (if equipped) rear view camera system control module
• (a4: right side of trunk) (w/ tailor socket) towing recognition control module
• (a4:near steering column) electronic steering column lock control module
• (avant) rear lid control module
• (info not available)
• (not used) 12 pin connector
• (s4: below driver's seat) (a4: right side of trunk) comfort system central control module
• 10h
• 10l
• 11h
• 11l
• 12h
• 12l
• 13h
• 13l
• 14h
• 14l
• 15h
• 15l
• 16h
• 16l
• 17h
• 17l
• 18h
• 18l
• 19h
• 19l
• 20h
• 20l
• 21h
• 21l
• 22h
• 22l
• 23h
• 23l
• Access/start authorization switch
• Auxiliary heater control module
• Climatronic control module
• External audio source connection
• Front passenger's door control module (s4: integrated in right front door window regulator motor) (a4: in passenger front door)
• Instrument cluster control module
• Parallel parking assistance control module (a4: right side of trunk)
• Passenger's side can seperating plug
• Radio
• Steering column electronic system control module (a4: on steering column, behind steering wheel)
• T10ag
• T12u
• T16e
• T16i
• T20e
• T20g
• T32c
• T8m
• Tire pressure monitoring control module (a4: behind right side of dash)
• W/ mmi 2 generator
• W/ mmi 3 generator
• W/ mmi high

COOLING FAN

Cooling Fan Wiring Diagram for Audi A4 2009

List of elements for Cooling Fan Wiring Diagram for Audi A4 2009:

• (3.2l) auxiliary engine coolant pump relay
• (m/t) (a/t)
• 11a
• 2.ol
• 3.2l
• After run coolant pump (a4: lower left side of engine)
• Battery jump start terminal (a4: middle of engine compt plenum chamber)
• Coolant circulation pump relay (2.0l) (a4: on e-box relay/fuse carrier) (s4: in e-box in plenum chamber)
• Coolant fan
• Coolant fan 2 (a/t)
• Coolant fan control (fc) module (a4: on coolant fan motors) (s4: at radiator fan)
• E box relay/ fuse carrier (a4: in plenum chamber electronics box)
• Engine control module (ecm) (a4: left side of engine compt plenum chamber)
• Engine coolant level (ecl) sensor
• Engine coolant temperature (ect) sensor (2.0l a4: lower left rear of engine) (3.2l a4: top front of engine) (s4: rear of engine)
• Fuse 1 40a 60a
• Fuse 15a
• Fuse 5a
• Fuse carrier
• G12 (left rear of engine compt)
• G671 (a4: on left front long member)
• Hot at all times
• Red
• T32b
• T60
• T94

CRUISE CONTROL

Cruise Control Wiring Diagram for Audi A4 2009

List of elements for Cruise Control Wiring Diagram for Audi A4 2009:

• (in mechatronic unit) transmission control module (tcm)
• 12a
• 2.0l
• 3.2l
• Brake light switch
• Climatronic control module
• Clutch pedal sensor (m/t)
• Computer data lines system
• Cruise control switch
• Direct shift gearbox (dsg) mechatronic
• Distance regulation control module (if equipped)
• Engine control module (ecm) (left side of engine compt plenum chamber)
• Fuse 10a
• Fuse 5a
• Fuse carrier
• Fuse panel sc
• Fuse panel sd
• Fuse panel sf
• G638 (behind right kick panel)
• G687 (left side of center tunnel)
• Hot at all times
• Nca
• Shift interlock system
• Steering column electronic systems control module (on steering column, behind steering wheel)
• T16f
• T16r
• T20e
• T60
• T94
• Throttle position (tp) sensor & accelerator pedal position sender 2 (throttle position (tp) sensor: integral to accelerator pedal position sensor) (accelerator pedal position sender 2: in accelerator module)
• Throttle valve control module (2.0l: left side of intake manifold) (3.2l: on throttle valve housing)
• Transmission control module (tcm)
• W/ 6-speed a/t
• W/ cvt
• W/ direct shift gear box
• W/o direct shift gear box

DEFOGGERS

Defoggers Wiring Diagram for Audi A4 2009

List of elements for Defoggers Wiring Diagram for Audi A4 2009:

• (a4 avant & sedan: behind left kick panel) g639
• (a4 avant & sedan: behind right kick panel) g638
• (a4: luggage compartment relay/fuse carrier) rear window defogger relay
• (s4: integrated in right front door window regulator motor) (a4: in passenger front door) front passenger door control module
• 11a
• 40a
• Comfort system central control module (a4: right side of trunk) (s4: below driver's seat)
• Computer data lines system
• Driver exterior mirror
• Driver's door control module (a4: in driver's front door) (s4: integrated in driver's door window regulator motor)
• Driver's heated outside mirror
• Driver's side fuse panel (behind left end of dash)
• Fm frequency filter (in positive wire)
• Front passenger exterior mirror
• Front passenger's heated outside mirror
• Fuse 110a
• Fuse 15a
• Fuse 20a
• Fuse carrier
• Fuse panel a (a4: on battery, in luggage compt)
• G51 (a4 avant & sedan: right side of luggage compt)
• G654 (a4: top of right "d" pillar)
• Ground distribution system
• Heated rear window & glass window
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Mirrors system
• Nca
• Power distribution system
• Rear window defogger fuse
• Red
• T16n
• T17o
• T20f
• T20g
• T32c
• Windshield antenna suppression filter (w/ trap circuit)

ELECTRONIC POWER STEERING

Active Steering Control Module Wiring Diagram for Audi A4 2009

List of elements for Active Steering Control Module Wiring Diagram for Audi A4 2009:

• Active steering control module (a4: under driver's seat)
• Computer data lines system
• Electro- mechanical power steering motor
• Fuse 35a
• Fuse 5a
• Fuse carrier
• Fuse panel sc
• G602
• G639 (a4: behind left kick panel)
• Hot at all times
• Nca
• Power steering pump (except 2.0l)
• T10h
• T2bb
• T4r
• T5d
• T6ar
• T8g

Power Steering Column Wiring Diagram for Audi A4 2009

List of elements for Power Steering Column Wiring Diagram for Audi A4 2009:

• 12a
• Air bag spiral return/ slip ring (a4: in steering column)
• Computer data lines system
• Control module in steering wheel
• Driver's air bag igniter
• Driver's air bag igniter 2
• Fuse 5a
• Fuse carrier
• Fuse panel sd
• G687 (a4: left side of center tunnel)
• Hot at all times
• Left multi- function buttons
• Mode
• Multi-function steering wheel control module
• Nca
• Right multi-function buttons
• Signal horn activation
• Steering angle sensor (a4: behind steering wheel)
• Steering column electronic systems control module (a4: on steering column, behind steering wheel)
• Steering wheel vibration motor (w/ directional stabilization assistance)
• T16f
• Tiptronic downshift button (if equipped)
• Tiptronic upshift button (if equipped)
• W/ directional stabilization assistance
• W/ tiptronic

ELECTRONIC SUSPENSION

Electronic Suspension Wiring Diagram (1 of 2) for Audi A4 2009

List of elements for Electronic Suspension Wiring Diagram (1 of 2) for Audi A4 2009:

• Computer data lines system
• Electronic dampening control module (a4: right side of trunk)
• Fuse 15a
• Fuse 5a
• Fuse carrier 2
• Fuse panel sd
• Fuse panel sf
• G51 (a4: right side of luggage compt)
• Hot at all times
• Left front dampening adjustment valve
• Left rear dampening adjustment valve
• Power distribution system
• Right front dampening adjustment valve
• Right front level control sensor
• Right rear dampening adjustment valve

Electronic Suspension Wiring Diagram (2 of 2) for Audi A4 2009

List of elements for Electronic Suspension Wiring Diagram (2 of 2) for Audi A4 2009:

• (a4: under driver's seat) active steering control module
• Charisma switch module
• Computer data
• Computer data lines system
• Fuse 35a
• Fuse 5a
• Fuse carrier 1
• Fuse carrier 3
• Fuse panel sc
• G687 (a4: left side of center tunnel)
• G688 (a4: right side of center tunnel)
• Hot at all times
• Left front body acceleration sensor
• Left front level control system sensor
• Left rear level control system sensor
• Lines system
• Rear body acceleration sensor
• Right front body acceleration sensor
• Right rear level control system sensor
• T10h
• T16b
• T5d
• T8g
• Vehicle electrical system control module (a4: under left sid of dash) (s4: behind driver's storage compt)
• W/ navigation system
• W/o navigation system

ENGINE PERFORMANCE

2.0L TURBO

2.0L Turbo, Engine Performance Wiring Diagram (1 of 6) for Audi A4 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (1 of 6) for Audi A4 2009:

• (left rear of engine compt) g12
• (right side of trunk) comfort system control module
• Cooling fans system
• Cruise control switch
• E-box relay/ fuse carrier (in plenum chamber electronics box)
• Engine control module (ecm) (left side of engine compt plenum chamber)
• Exterior lights system
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Fuse carrier
• G12 (left rear of engine compt)
• Nca
• Oil level thermal sensor
• Oxygen sensor (o2s) behind 3-way catalytic converter (twc) (downstream of catalytic converter)
• Red
• Starting/ charging system
• Steering column electronic systems control module (on steering column, behind steering wheel)
• System
• T16f
• T32d
• T94
• Throttle position (tp) sensor & accelerator pedal position sensor 2 (integral to accelerator pedal position sensor)
• Transmissions
• W/ cruise control
• W/o cruise control

2.0L Turbo, Engine Performance Wiring Diagram (2 of 6) for Audi A4 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (2 of 6) for Audi A4 2009:

• 10a
• Coil 1
• Coil 2
• Coil 3
• Coil 4
• E-box relay/ fuse carrier (in plenum chamber electronics box)
• Fuse 110a
• Fuse 15a
• Fuse carrier
• Fuse panel a (on battery, in luggage compt)
• G12 (left rear of engine compt)
• G15
• Hot at all times
• Ignition coils 1, 2, 3 & 4 w/ power output stage (above 1, 2, 3 & 4 cylinders)
• Nca
• Red
• Reduced oil pressure switch
• To spark plug

2.0L Turbo, Engine Performance Wiring Diagram (3 of 6) for Audi A4 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (3 of 6) for Audi A4 2009:

• (base of right "c" pillar) g730
• Air bag malfunction ind lamp
• Brake light switch
• Camshaft adjustment actuator 1
• Camshaft adjustment actuator 2
• Camshaft adjustment actuator 3
• Camshaft adjustment actuator 4
• Camshaft adjustment actuator 5
• Camshaft adjustment actuator 6
• Camshaft adjustment actuator 7
• Camshaft adjustment actuator 8
• Computer data lines system
• Coolant circulation pump relay (on e-box relay/fuse carrier)
• Driver's side fuse panel (behind left end of dash)
• Fuel level sensor & transfer pump
• Fuel pump (fp) control module
• Fuse 25a
• Fuse 5a
• Fuse carrier
• Instrument cluster control module
• T5f

2.0L Turbo, Engine Performance Wiring Diagram (4 of 6) for Audi A4 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (4 of 6) for Audi A4 2009:

• (m/t) clutch position sensor
• (right side of trunk) electro mechanical parking brake control module
• (under left side of dash) vehicle electrical system control module
• Camshaft adjustment valve 1 (lower front of engine)
• Climatronic control module
• Climatronic refrigerant shut-off valve (on refrigerant tube)
• Driver's side fuse panel (behind left end of dash)
• Engine coolant level (ecl) sensor
• Fuse 5a
• Fuse carrier
• G639 (behind left kick panel)
• G687 (left side of center tunnel)
• Hot at all times
• Intake manifold runner control (imrc) valve (left side engine)
• Leak detection pump (ldp)
• Left electro hydraulic engine mount solenoid valve (a/t)
• Oil pressure regulation valve (lower left front of engine)
• T17i
• T20e
• T32b
• Turbocharger recirculating valve (right front of engine)
• Wastegate bypass regulator valve (right front of engine)

2.0L Turbo, Engine Performance Wiring Diagram (5 of 6) for Audi A4 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (5 of 6) for Audi A4 2009:

• (above 1, 2, 3 & 4 cylinders) fuel injectors 1,2,3 & 4
• (left front of engine compt) charge air pressure sensor
• (left side of engine, in intake manifold) intake manifold runner position sensor
• (left side of engine, on fuel line) fuel pressure sensor
• (left side of intake manifold) intake air temperature (iat) sensor
• (lower left rear of engine) engine coolant temperature (ect) sensor
• Engine control module (ecm) (left side of engine compt plenum chamber)
• Engine speed (rpm) sensor (lower left rear of engine)
• Evaporative emission (evap) canister purge regulator valve (left rear of engine)
• Servotronic solenoid valve
• T60

2.0L Turbo, Engine Performance Wiring Diagram (6 of 6) for Audi A4 2009

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (6 of 6) for Audi A4 2009:

• (right rear of engine) fuel pressure regulator valve
• Camshaft position (cmp) sensor (top center of engine)
• Computer data lines system
• E-box relay/ fuse carrier (in plenum chamber electronics box)
• Engine control module (ecm) (left side of engine compt plenum chamber)
• Fuse 5a
• Fuse carrier
• Heated oxygen sensor (ho2s) & oxygen sensor (o2s) heater (in exhaust, at turbocharger exit)
• Hot at all times
• Knock sensor (ks) 1 (left side of cylinder head)
• Nca
• Secondary air injection sensor 1
• Starting/charging system
• T60
• T94
• Throttle valve control module (left side of intake manifold)

3.2L

3.2L, Engine Performance Wiring Diagram (1 of 8) for Audi A4 2009

List of elements for 3.2L, Engine Performance Wiring Diagram (1 of 8) for Audi A4 2009:

• (in mechatronic unit) transmission control module (tcm)
• (left rear of engine compt) g12
• (right side of trunk) comfort system control module
• Cooling fans system
• Direct shift gear box (dsg) mechatronic
• E-box relay/ fuse carrier (in plenum chamber electronics box)
• Engine control module (ecm) (left side of engine compt plenum chamber)
• Fuse 15a
• Fuse 20a
• Fuse 5a
• G12 (left rear of engine compt)
• Nca
• Oil level thermal sensor
• Oxygen sensor (02s) 2 behind three way catalytic convertor (downstream of cylinder bank 2 catalytic converter)
• Oxygen sensor (o2s) behind three way catalytic convertor (downstream of catalytic converter)
• Red
• Starting/ charging system
• Starting/charging system
• T16r
• T32d
• T94
• Throttle position (tp) sensor & throttle position (tp) sensor 2 (throttle position (tp) sensor 2: integral to accelerator pedal position sensor)
• Transmission control module (tcm)
• W/ 6 speed
• W/ direct shift gear box
• W/o direct shift gear box

3.2L, Engine Performance Wiring Diagram (2 of 8) for Audi A4 2009

List of elements for 3.2L, Engine Performance Wiring Diagram (2 of 8) for Audi A4 2009:

• 10a
• Battery interrupt igniter
• Battery jump start terminal (middle of engine compt plenum chamber)
• Cam adjustment actuator 1 (above actuator 1 bank 1 cylinders)
• Cam adjustment actuator 2 (above actuator 2 bank 1 cylinders)
• Cam adjustment actuator 3 (above actuator 3 bank 1 cylinders)
• Cam adjustment actuator 4 (above actuator 4 bank 1 cylinders)
• Cam adjustment actuator 5 (above actuator 5 bank 1 cylinders)
• Cam adjustment actuator 6 (above actuator 6 bank 1 cylinders)
• E-box relay/ fuse carrier (in plenum chamber electronics box)
• Fuse 110a
• Fuse 15a
• Fuse panel a (on battery, in luggage compt)
• Hot at all times
• Power distribution system
• Red

3.2L, Engine Performance Wiring Diagram (3 of 8) for Audi A4 2009

List of elements for 3.2L, Engine Performance Wiring Diagram (3 of 8) for Audi A4 2009:

• (right side of trunk) comfort system control module
• Driver side fuse panel (behind left end of dash)
• E-box relay/ fuse carrier (in plenum chamber electronics box)
• Fuse 25a
• Fuse 5a
• Fuse carrier
• Red
• Reduced oil pressure switch
• T32d
• Transmission park selector switch & shift lock solenoid (a/t) (shift lock solenoid: on shifter unit)

3.2L, Engine Performance Wiring Diagram (4 of 8) for Audi A4 2009

List of elements for 3.2L, Engine Performance Wiring Diagram (4 of 8) for Audi A4 2009:

• (base of right "c" pillar) g730
• (in exhaust, at turbocharger exit) heated oxygen sensor (ho2s) 2
• (left side of center tunnel) g687
• (left side of engine compt) abs control module
• (not used) 12 pin connector
• (right side of trunk) comfort system control module
• (upstream of cylinder bank 2 catalytic converter) heated oxygen sensor (h02s)
• Brake light switch
• Cam adjustment actuator 10 (above actuator 10 bank 2 cylinders)
• Cam adjustment actuator 11 (above actuator 11 bank 2 cylinders)
• Cam adjustment actuator 12 (above actuator 12 bank 2 cylinders)
• Cam adjustment actuator 7 (above actuator 7 bank 2 cylinders)
• Cam adjustment actuator 8 (above actuator 8 bank 2 cylinders)
• Cam adjustment actuator 9 (above actuator 9 bank 2 cylinders)
• Climatronic control module
• Discontinued phased in modification
• Fuel pump (fp) control module
• Nca
• Red
• T12u
• T20e
• T32d
• Transfer fuel pump (fp) & fuel level sensor

3.2L, Engine Performance Wiring Diagram (5 of 8) for Audi A4 2009

List of elements for 3.2L, Engine Performance Wiring Diagram (5 of 8) for Audi A4 2009:

• (intake air temperature sensor: on throttle body) (manifold absolute pressure sensor: rear of engine) manifold absol- ute pressure/ intake air temperature sensor
• (left side of center tunel) g687
• (w/ all wheel drive) fuel level sensor 2
• Auxiliary engine coolant (ec) pump relay
• Camshaft adjustment valve 1 (exhaust) (right side of cylinder bank 1)
• Camshaft adjustment valve 1 (rear of cylinder bank 1)
• Camshaft adjustment valve 2 (exhaust) (rear of cylinder bank 2)
• Camshaft adjustment valve 2 (rear of cylinder bank 2)
• Climatronic control module
• Climatronic refrigerant shut-off valve (on refrigerant tube)
• Computer data lines system
• Fuse 5a
• Fuse carrier
• Hot at all times
• Instrument cluster control module (behind instrument cluster)
• Left electro-hydraulic engine mount solenoid valve (if equipped)
• Passenger's side fuse panel (behind right end of dash)
• Red
• T20e

3.2L, Engine Performance Wiring Diagram (6 of 8) for Audi A4 2009

List of elements for 3.2L, Engine Performance Wiring Diagram (6 of 8) for Audi A4 2009:

• (front of cylinder bank 1) camshaft position (cmp) sensor
• (front of cylinder bank 2) camshaft position (cmp) sensor 2
• (left side of cylinder bank 2) camshaft position (cmp) sensor 4
• (lower left rear of engine) engine coolant temperature (ect) sensor
• (lower left rear of engine) engine speed (rpm) sensor
• (on high pressure pump) low fuel pressure sensor
• (right side of cylinder bank 1) camshaft position (cmp) sensor 3
• (under intake manifold) fuel pressure sensor
• (w/ ulve2) secondary air injection sensor 1
• Engine control module (ecm) (left side of engine compt plenum chamber)
• Intake manifold tuning valve position sensor (front of engine)
• Knock sensor (ks) 1 (under intake manifold, on cylinder bank 1)
• Knock sensor (ks) 2 (under intake manifold, on cylinder bank 2)
• Nca
• Red
• T60

3.2L, Engine Performance Wiring Diagram (7 of 8) for Audi A4 2009

List of elements for 3.2L, Engine Performance Wiring Diagram (7 of 8) for Audi A4 2009:

• 50a
• Evaporative emission (evap) canister purge regulator valve (rear of engine)
• Fuel metering valve (on high pressure pump)
• G615 (on left strut tower)
• Intake manifold tuning (imt) valve (front of engine)
• Leak detection pump (ldp)
• Oil pressure regulator valve (lower left front of engine)
• Red
• Second- ary air injection (air) pump fuse
• Secondary air injection (air) pump motor (w/ eu5/ulev2) (right front of engine compt)
• Secondary air injection (air) pump relay (w/ eu5/ulev2) (on e-box relay/ fuse carrier)
• Secondary air injection (air) solenoid valve (w/ ulev2)
• Secondary air injection (air) solenoid valve 2 (w/ ulev2)

3.2L, Engine Performance Wiring Diagram (8 of 8) for Audi A4 2009

List of elements for 3.2L, Engine Performance Wiring Diagram (8 of 8) for Audi A4 2009:

• (above bank 1 cylinder) fuel injectors
• (above bank 2 cylinder) fuel injectors
• (not used) 12 pin connector
• Coil 1
• Coil 2
• Coil 3
• Coil 4
• Coil 5
• Coil 6
• Computer data lines system
• Engine control module (ecm) (left side of engine compt plenum chamber)
• G600
• G601
• G615 (on left front strut tower)
• Ignition coil w/ power outlet stage (coil 1, 2 & 3 : above bank 1 cylinders) (coil 4, 5 & 6 : above bank 2 cylinders)
• Nca
• Starting/charging system
• Starting/charging system cruise control system
• T12u
• T60
• T94
• Throttle valve control module (on throttle valve housing)
• To spark plug

EXTERIOR LIGHTS

Backup Lamps Wiring Diagram for Audi A4 2009

List of elements for Backup Lamps Wiring Diagram for Audi A4 2009:

• 6 speed a/t
• Automatic day/ night interior mirror
• Avant
• Backup lamp
• Comfort system central control module (a4: right side of trunk) (s4: below driver's seat)
• Computer data lines system
• Cvt
• Direct shift gearbox (dsg) mechatronic
• Fuse 30a
• Fuse carrier
• G50 (a4 avant & sedan: left side of luggage compt)
• G51 (a4 avant & sedan: right side of luggage compt)
• G688 (a4 avant & sedan: right side of center tunnel)
• Hot at all times
• Left taillamp assembly 1
• Left taillamp assembly 2
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Prnds
• Right taillamp assembly 1
• Sedan
• Selector lever sensor system control module (a4: on shifter unit)
• T17o
• T17p
• T32c
• Transmission control module
• Transmission control module (a4: in mechatronic unit) (s4: on rear of transmission)
• W/ direct shift gear box
• W/ led
• W/o direct shift gear box
• W/o led

Exterior Lamps Wiring Diagram, Avant with LED (1 of 2) for Audi A4 2009

List of elements for Exterior Lamps Wiring Diagram, Avant with LED (1 of 2) for Audi A4 2009:

• (a4 avant & sedan: left side of center tunnel) g687
• 12a
• Computer data lines system
• Emergency flasher button
• Emergency flasher ind lamp
• Fuse 10a
• Fuse 30a
• Fuse 5a
• Fuse carrier
• G638 (a4 avant & sedan: behind right kick panel)
• G639 (a4 avant & sedan: behind left kick panel)
• G687 (a4 avant & sedan: left side of center tunnel)
• Hot at all times
• Interior lights system
• Left headlight assembly
• Light switch
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Marker lamp
• Nca
• Park lamp
• Passenger's side fuse panel (a4: behind right end of dash)
• Right headlight assembly
• Steering column electronic systems control module (a4: on steering column, behind steering wheel)
• T16f
• T17m
• T17n
• T32a
• Turn lamp
• Turn signal switch
• Turn/ marker lamp
• Valet parking ind lamp
• Valet parking lock button
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)

Exterior Lamps Wiring Diagram, Avant with LED (2 of 2) for Audi A4 2009

List of elements for Exterior Lamps Wiring Diagram, Avant with LED (2 of 2) for Audi A4 2009:

• (a4 avant & sedan: left side of center tunnel) g687
• 2.0l
• 3.2l
• Backup lamp
• Backup lamps circuit
• Brake lamp
• Brake lamp/ tail lamp
• Brake light switch (s4: top of brake pedal assembly)
• Climatronic control module
• Clutch position sensor (m/t)
• Comfort system central control module (a4: right side of trunk) (s4: below driver's seat)
• Driver's side fuse panel (a4: behind left end of dash)
• Engine control module (ecm) (a4: left side of engine compt plenum chamber) motronic engine control module (ecm) (s4: in e-box, in plenum chamber)
• Fog lamp
• Fuse 5a
• Fuse carrier
• G50 (a4 avant & sedan: left side of luggage compt)
• G51 (a4 avant & sedan: right side of luggage compt)
• G639 (a4 avant & sedan: behind left kick panel)
• G654 (a4: top of right "d" pillar)
• Headlights system
• High-mount brake light
• Left license plate light
• Left taillamp assembly 1
• Left taillamp assembly 2
• Right license plate light
• Right taillamp assembly 1
• Right taillamp assembly 2
• T17o
• T17p
• T20e
• T32c
• T32d
• T94
• Tail lamp
• Turn lamp

Exterior Lamps Wiring Diagram, Avant without LED (1 of 2) for Audi A4 2009

List of elements for Exterior Lamps Wiring Diagram, Avant without LED (1 of 2) for Audi A4 2009:

• (a4 avant & sedan: left side of center tunnel) g687
• 12a
• Computer data lines system
• Emergency flasher button
• Emergency flasher ind lamp
• Fuse 10a
• Fuse 30a
• Fuse 5a
• Fuse carrier
• G638 (a4 avant & sedan: behind right kick panel)
• G639 (a4 avant & sedan: behind left kick panel)
• G687 (a4 avant & sedan: left side of center tunnel)
• Hot at all times
• Interior lights system
• Left headlight assembly
• Light switch
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Marker lamp
• Nca
• Park lamp
• Passenger's side fuse panel (a4: behind right end of dash)
• Right headlight assembly
• Steering column electronic systems control module (a4: on steering column, behind steering wheel)
• T16f
• T17m
• T17n
• T32a
• Turn lamp
• Turn signal switch
• Turn/ marker lamp
• Valet parking ind lamp
• Valet parking lock button
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)

Exterior Lamps Wiring Diagram, Avant without LED (2 of 2) for Audi A4 2009

List of elements for Exterior Lamps Wiring Diagram, Avant without LED (2 of 2) for Audi A4 2009:

• (a4 avant & sedan: left side of center tunnel) g687
• 2.0l
• 3.2l
• Backup lamp
• Backup lamps circuit
• Brake light switch (s4: top of brake pedal assembly)
• Brake/ turn/ tail lamps
• Climatronic control module
• Clutch position sensor (m/t)
• Comfort system central control module (a4: right side of trunk) (s4: below driver's seat)
• Driver's side fuse panel (a4: behind left end of dash)
• Engine control module (ecm) (a4: left side of engine compt plenum chamber) motronic engine control module (ecm) (s4: in e-box, in plenum chamber)
• Fog lamp
• Fuse 5a
• Fuse carrier
• G50 (a4 avant & sedan: left side of luggage compt)
• G51 (a4 avant & sedan: right side of luggage compt)
• G639 (a4 avant & sedan: behind left kick panel)
• G654 (a4: top of right "d" pillar)
• Headlights system
• High-mount brake light
• Left license plate light
• Left taillamp assembly 1
• Left taillamp assembly 2
• Marker lamp
• Right license plate light
• Right taillamp assembly 1
• Right taillamp assembly 2
• T17o
• T17p
• T20e
• T32c
• T32d
• T94
• Tail lamp
• Tail lamp 1
• Tail lamp 2

Exterior Lamps Wiring Diagram, Sedan (1 of 2) for Audi A4 2009

List of elements for Exterior Lamps Wiring Diagram, Sedan (1 of 2) for Audi A4 2009:

• (a4 avant & sedan: left side of center tunnel) g687
• 12a
• Computer data lines system
• Emergency flasher button
• Emergency flasher ind lamp
• Fuse 10a
• Fuse 30a
• Fuse 5a
• Fuse carrier
• G638 (a4 avant & sedan: behind right kick panel)
• G639 (a4 avant & sedan: behind left kick panel)
• G687 (a4 avant & sedan: left side of center tunnel)
• Hot at all times
• Interior lights system
• Left headlight assembly
• Light switch
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Marker lamp
• Nca
• Park lamp
• Passenger's side fuse panel (a4: behind right end of dash)
• Right headlight assembly
• Steering column electronic systems control module (a4: on steering column, behind steering wheel)
• T16f
• T17m
• T17n
• T32a
• Turn lamp
• Turn signal switch
• Turn/ marker lamp
• Valet parking ind lamp
• Valet parking lock button
• Vehicle electrical system control module (s4: behind driver's storage compt) (a4: under left side of dash)

Exterior Lamps Wiring Diagram, Sedan (2 of 2) for Audi A4 2009

List of elements for Exterior Lamps Wiring Diagram, Sedan (2 of 2) for Audi A4 2009:

• (a4 avant & sedan: left side of center tunnel) g687
• 2.0l
• 3.2l
• Backup lamp
• Backup lamps circuit
• Brake light switch (s4: top of brake pedal assembly)
• Brake/ tail lamp
• Brake/ turn signal/ tail lamps
• Brake/ turn/ tail lamps
• Climatronic control module
• Clutch position sensor (m/t)
• Comfort system central control module (a4: right side of trunk) (s4: below driver's seat)
• Driver's side fuse panel (a4: behind left end of dash)
• Engine control module (ecm) (a4: left side of engine compt plenum chamber) motronic engine control module (ecm) (s4: in e-box, in plenum chamber)
• Fog lamp
• Fuse 5a
• Fuse carrier
• G50 (a4 avant & sedan: left side of luggage compt)
• G51 (a4 avant & sedan: right side of luggage compt)
• G639 (a4 avant & sedan: behind left kick panel)
• G654 (a4: top of right "d" pillar)
• Headlights system
• High-mount brake light
• Left license plate light
• Left taillamp assembly 1
• Left taillamp assembly 2
• Marker lamp
• Right license plate light
• Right taillamp assembly 1
• Right taillamp assembly 2
• T17o
• T17p
• T20e
• T32c
• T32d
• T94
• Tail lamp 2
• Turn signal lamp

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 3) for Audi A4 2009

List of elements for Ground Distribution Wiring Diagram (1 of 3) for Audi A4 2009:

• Abs control module
• Access/start authorization switch, instrument cluster control module, steering column electronic systems control module, center instrument panel vent illumination, instrument panel illumination dimmer switch, left front footwell illumination, electronic steering column lock control module, climatronic control module, front passenger air bag igniter 1 & 2, data link connector, brake light switch, radio & 12-pin connector
• Antenna amplifier 3 shield
• Battery monitoring control module
• Charisma switch module (w/o navigation) & front information display control head control module
• Cigarette lighter
• Comfort system central control module, front information display control head, dvd changer, external audio source connection (w/ mmi high) & cd changer
• Coolant fan control (fc) control module
• Coolant fan control (fc) control module 2 & fuse carrier 1
• Emergency flasher indicator lamp, left instrument panel vent illumination, right instrument panel vent illumination, rear window shade switch, asr/esp button (w/ navigation), charisma switch module (w/ navigation), data bus on board diagnostic interface, parking aid button (w/ navigation) & fresh air blower control module
• External audio source connection shield
• Front information display control head control module & information electronics control module 1
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G624 (a4 avant & sedan: middle of luggage compt, near battery)
• G671 (a4 avant & sedan: on left front long member)
• G687 (a4 avant & sedan: left side of center tunnel)
• G688 (a4 avant & sedan: right side of center tunnel)
• G730 (a4 avant & sedan: base of right "c" pillar)
• Glove compartment lamp switch, footwell illumination, valet parking lock button & valet parking indicator lamp
• Left rear heated seat temperature sensor, front passenger's seat side bolster heater, right rear footwell light (w/ additional lighting equipment) socket illumination, converter w/ socket, front passenger's seat lumbar support adjustment switch, right rear footwell light, fuel pump (fp) control module, 12-pin connector, air bag control module, left rear seat heating element, right rear seat heating element, driver's side air bag igniter, front passenger's side air bag igniter, front passenger's air bag off key switch, driver's safety belt switch, driver's seat position sensor, front passenger's seat position sensor, seat occupied recognition control module, front passenger's safety belt switch, right rear heated seat temperature sensor, seat occupied recognition control module, front passenger's side rear seat occupied sensor, driver's side rear passenger's side air bag igniter, 12v socket 2 & front passenger's side rear passenger's side air bag igniter,
• Left rear seat head restraint adjustment button, 12 v socket, asr/esp button (w/o navigation), rear window shade switch, selector lever sensor system control module, transmission park selector switch, parking aid button (w/o navigation), access/start authorization button, temperature control switch illumination, left rear heated seat regulating switch, right rear heated seat regulating switch,
• Passenger backrest adjustment switch, front passenger's seat height adjustment switch, front passenger's seat tilt adjustment button & right rear door control module
• Right front seat ventilation control module
• Right rear outside door handle touch sensor
• Telephone transceiver, telephone baseplate, 18-pin connector & socket illumination

Ground Distribution Wiring Diagram (2 of 3) for Audi A4 2009

List of elements for Ground Distribution Wiring Diagram (2 of 3) for Audi A4 2009:

• All wheel drive control module &
• Antenna amplifier 3 shield
• Comfort system central control module, rear lid opening assist unlock stop switch, rear lid closing assist lock stop switch, right tail lamp, right brake lamp, right backup lamp, rear lid control module, rear lid control module 2, sockets relay parallel parking assistance control module, right luggage compartment light, right brake/taillight lamp 2, trunk lid alarm switch (sedan), rear lid central locking system motor (sedan), left taillamp, left rear parking/fog lamp, left backup lamp, 12v socket 3, right rear parking/fog lamp, right brake/turn signal/taillamp, right rear fog lamp, right rear side marker lamp right rear turn signal lamp, left brake/taillight lamp 2 & high-mount brake light
• Digital sound system control module, navigation system w/ cd drive control module, radio, satellite radio, tv tuner & antenna amplifier 3
• Engine control module (ecm), suppressor & transmission control module
• External audio source connection shield
• Fm frequency filter
• G12 (3.2l) (left rear of engine compt)
• G15 (2.0l)
• G50 (a4 avant & sedan: left side of luggage compt)
• G51 (a4 avant & sedan: right side of luggage compt)
• G600 (3.2l)
• G601 (3.2l)
• G615 (a4 avant & sedan: on left front strut tower)
• G62 (a4: right "c" pillar)
• G654 (a4: top of right "d" pillar)
• Ignition coils 1, 2 & 3 w/ power output stage
• Ignition coils 1, 2 & 3 w/ power output stage & secondary air injection (air) pump motor,
• Ignition coils 1, 2, 3 & 4 w/ power output stage
• Ignition coils 4, 5 & 6 w/ power output stage
• Left luggage compartment light, driver's side air bag igniter, left tail lamp, left rear turn signal lamp, left brake lamp, front passenger's side air bag igniter, left backup lamp, left rear window breakage sensor, left brake/turn signal/taillamp, air bag control module, left rear footwell light (w/ additional lighting equipment), left rear side marker lamp, radio frequency controlled clock receiver, driver's side rear passenger's side air bag igniter, front passenger's air bag off key switch, front passenger's side rear passenger's side air bag igniter, driver's seat position sensor, front passenger's seat position sensor, front passenger's safety belt switch, driver's safety belt switch & seat occupied recognition control module
• Radio, telephone, navigation system antenna shield
• Rear window wiper motor, left rear fog lamp, left brake lamp 2, left brake/taillight lamp 2, ambient illumination 1, right rear fog lamp, right brake lamp 2, right brake/taillight lamp 2, rear lid lock button, trunk lid alarm switch, rear lid lock cylinder unlock button, left license plate light, right license plate light, high-mount brake light, left tail lamp, left taillight lamp 2, right tail lamp & right taillight lamp 2
• Right license plate light (sedan), rear window defogger relay, rear view camera system control module, left license plate light (sedan), electronic damping control module, lane change assistance control module, lane change assistance control module 2 & rear lid lock cylinder unlock button (sedan)
• Transmission range (tr) gear recognition switch (m/t), oil pressure switch, oil level thermal sensor, after run coolant pump & engine control module (ecm)
• Voltage stabilizer (engine start/stop system)

Ground Distribution Wiring Diagram (3 of 3) for Audi A4 2009

List of elements for Ground Distribution Wiring Diagram (3 of 3) for Audi A4 2009:

• Active steering control module
• Driver's backrest heating element & driver's seat backrest side bolster element
• Driver's door control module, vehicle electrical system control module, wiper motor control module, alarm horn, automatic day/night interior mirror relay, right washer nozzle heater, left washer nozzle heater, clutch position sensor (m/t), garage door opener control module, air quality sensor, left front brake pad wear sensor, esp sensor unit & esp sensor unit 2,
• Electro- mechanical power steering motor shield
• Fm frequency filter
• G12 (2.0l) (left rear of engine compt)
• G602
• G638 (a4 avant & sedan: behind right kick panel)
• G639 (a4 avant & sedan: behind left kick panel)
• G657
• High tone horn, lane change assistance button, left front fog lamp, left low beam headlamp, air bag control module, front hood switch, front passenger's side air bag igniter, front passenger's air bag off key switch, driver's side air bag igniter, left rear door control module, driver's side rear passenger's side air bag igniter, a/c pressure/temperature sensor, driver's safety belt switch, front passenger's side rear passenger's side air bag igniter, driver's seat position sensor, left headlamp assembly, driver's seat backrest side bolster heater, front passenger's seat position sensor, front passenger's safety belt switch, horn relay & seat occupied recognition control module
• Ignition coils 1, 2, 3 & 4 w/ power output stage
• Left front outside door handle touch sensor
• Left front seat ventilation control module & driver's seat side bolster heater
• Left rear outside door handle touch sensor
• Low tone horn, right front fog lamp, left front side marker lamp, right high beam headlamp, right low beam headlamp, front passenger's door control module, front passenger's air bag off key switch, coolant pump, headlamp range control module, right headlamp assembly, air bag control module, front passenger's side air bag igniter, headlamp range/cornering lamp control module, tire pressure monitoring control module, driver's side air bag igniter, driver's side rear passenger's side air bag igniter, front passenger's side rear passenger's side air bag igniter, distance regulation control module, driver's safety belt switch, driver's seat position sensor, front passenger's seat position sensor, front passenger's safety belt switch & seat occupied recognition control module
• Memory seat/steering column adjustment control module, driver's seat lumbar support adjustment switch, driver's seat tilt adjustment switch, driver's backrest adjustment switch & driver's seat height adjustment switch
• Rain/light recognition sensor, driver's make up mirror light contact switch, front passenger's make up mirror light contact switch, power sunroof control module (sedan), anti-theft alarm system sensor, garage door opener control head, automatic day/night interior mirror, directional stabilization assistance control module, 6-pin connector, sunroof regulator (sedan) & directional stabilization assistance windshield heater
• Right front outside door handle touch sensor
• Roof blind control module
• Transmission control module (tcm), engine control module (ecm) & suppressor
• Transmission range (tr) gear recognition switch (m/t), oil level thermal sensor & after run coolant pump

HEADLIGHTS

Headlights Wiring Diagram, with Bi-Xenon with Cornering Headlights (1 of 2) for Audi A4 2009

List of elements for Headlights Wiring Diagram, with Bi-Xenon with Cornering Headlights (1 of 2) for Audi A4 2009:

• (a4 avant & sedan: left side of center tunnel) g687
• (w/ light sensor package) lamp/drl module left led parking
• 12a
• Computer data lines system
• Dimmer sw
• Emergency flasher button
• Emergency flasher indicator lamp
• Fog lamp button
• Front passenger air bag disabled indicator lamp
• Fuse 5a
• Fuse carrier 2
• Fuse carrier 4
• G639 (a4 avant & sedan: behind left kick panel)
• G687 (a4 avant & sedan: left side of center tunnel)
• Hot at all times
• Instrument cluster control module
• Interior lights system
• Left dynamic cornering light motor
• Left headlamp beam adjustment motor
• Left headlamp power output stage
• Left headlight assembly
• Left high intensity gas discharge (hid) lamp
• Left high intensity gas discharge lamp control module
• Left low beam reflector motor
• Left parking lamp
• Light switch
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Marker lamp left front side
• Passenger's side fuse panel (a4: behind right end of dash)
• Rear fog lamp button
• Signal lamp left front turn
• T16b
• T17m
• T17n
• T32a
• Valet parking indicator lamp
• Valet parking lock button
• Vehicle electrical system control module (a4: under left sid eof dash) (s4: behind driver's storage compt)

Headlights Wiring Diagram, with Bi-Xenon with Cornering Headlights (2 of 2) for Audi A4 2009

List of elements for Headlights Wiring Diagram, with Bi-Xenon with Cornering Headlights (2 of 2) for Audi A4 2009:

• (w/ light sensor package) lamp/drl module right led parking
• Computer data lines system
• Discharge (hid) lamp
• Driver's side fuse panel (a4: behind left end of dash)
• Fuse 5a
• Fuse carrier 1
• G638 (a4 avant & sedan: behind right kick panel)
• G639 (a4 avant & sedan: behind left kick panel)
• Headlight range/ cornering lamp control module (behind glove box)
• High intensity gas
• High intensity gas discharge lamp control module
• Lamp
• Left front fog lamp
• Left front level control system sensor (w/o electronic damping)
• Left rear level control system sensor (w/o electronic damping)
• Low beam reflector motor
• Marker lamp right front side
• Right dynamic cornering light motor
• Right front fog lamp
• Right front turn signal lamp
• Right headlamp beam adjustment motor
• Right headlamp power output stage
• Right headlight assembly
• Right parking

Headlights Wiring Diagram, with Bi-Xenon without Cornering Headlights (1 of 2) for Audi A4 2009

List of elements for Headlights Wiring Diagram, with Bi-Xenon without Cornering Headlights (1 of 2) for Audi A4 2009:

• (a4 avant & sedan: left side of center tunnel) g687
• (w/ light sensor package)
• 12a
• Computer data lines system
• Dimmer switch
• Emergency flasher button
• Emergency flasher indicator lamp
• Fog lamp button
• Front passenger air bag disabled indicator lamp
• Fuse 5a
• Fuse carrier 2
• Fuse carrier 4
• G639 (a4 avant & sedan: behind left kick panel)
• G687 (a4 avant & sedan: left side of center tunnel)
• High intensity gas discharge (hid) lamp
• High intensity gas discharge lamp control module
• Hot at all times
• Instrument cluster control module
• Interior lights system
• Lamp/drl module led parking
• Left headlamp beam adjustment motor
• Left headlight assembly
• Light switch
• Low beam reflector motor
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Marker lamp front side
• Parking lamp
• Passenger's side fuse panel (a4: behind right end of dash)
• Rear fog lamp button
• Signal lamp front turn
• T16b
• T17m
• T17n
• T32a
• Valet parking indicator lamp
• Valet parking lock button
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)

Headlights Wiring Diagram, with Bi-Xenon without Cornering Headlights (2 of 2) for Audi A4 2009

List of elements for Headlights Wiring Diagram, with Bi-Xenon without Cornering Headlights (2 of 2) for Audi A4 2009:

• (w/ light sensor package) lamp/drl module right led parking
• Computer data lines system
• Driver's side fuse panel (a4: behind left end of dash)
• Fuse 5a
• Fuse carrier 1
• G638 (a4 avant & sedan: behind right kick panel)
• G639 (a4 avant & sedan: behind left kick panel)
• Headlight range control module (behind glove box)
• Left front fog lamp
• Left front level control system sensor (w/o electronic damping)
• Left rear level control system sensor (w/o electronic damping)
• Marker lamp right front side
• Right front fog lamp
• Right front turn signal lamp
• Right headlamp beam adjustment motor
• Right headlight assembly
• Right high intensity gas discharge (hid) lamp
• Right high intensity gas discharge lamp control module
• Right low beam reflector motor
• Right parking lamp
• T26a
• T26b

Headlights Wiring Diagram, with Standard Headlights for Audi A4 2009

List of elements for Headlights Wiring Diagram, with Standard Headlights for Audi A4 2009:

• (a4 avant & sedan: left side of center tunnel) g687
• 10a
• 12a
• Computer data lines system
• Dimmer sw
• Driver's side fuse panel (a4: behind left end of dash)
• Emergency flasher button
• Emergency flasher indicator lamp
• Fog lamp button
• Front passenger air bag disabled indicator lamp
• Fuse 30a
• Fuse 5a
• Fuse carrier 2
• Fuse carrier 3
• Fuse carrier 4
• G638 (a4 avant & sedan: behind right kick panel)
• G639 (a4 avant & sedan: behind left kick panel)
• G687 (a4 avant & sedan: left side of center tunnel)
• Headlamp right low beam
• Hot at all times
• Instrument cluster control module
• Interior lights system
• Lamp left parking
• Lamp right parking
• Left front fog lamp
• Left front side marker lamp
• Left headlight assembly
• Left high beam headlamp
• Left low beam headlamp
• Light switch
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Marker lamp
• Passenger's side fuse panel (a4: behind right end of dash)
• Rear fog lamp button
• Right front fog lamp
• Right headlight assembly
• Right high beam headlamp
• Sensor package) (w/ light (drl) lamp running light left daytime
• Sensor package) (w/ light (drl) lamp running light right daytime
• Signal lamp left front turn
• Signal lamp right front turn
• Signal/side left front turn
• T16b
• T17m
• T17n
• T32a
• Valet parking indicator lamp
• Valet parking lock button
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)

HORN

Horn Wiring Diagram for Audi A4 2009

List of elements for Horn Wiring Diagram for Audi A4 2009:

• Air bag spiral return /slip ring (w/ slip ring) (a4: in steering column)
• Computer data lines system
• Control module in steering wheel
• Driver's side fuse panel (a4: behind left end of dash)
• Fuse 25a
• Fuse carrier
• G638 (a4 avant & seden: behind right kick panel)
• G639 (a4 avant & seden: behind left kick panel)
• High tone horn
• Horn relay (a4: on vehicle electrical system control module relay/fuse carrier) (s4: on 9-pin relay carrier)
• Hot at all times
• Low tone horn
• Nca
• Signal horn activation
• Steering column electronic systems control module (a4: on steering column, behind steering wheel)
• T16b
• T32b
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)

INSTRUMENT CLUSTER

Front Information Display Control Module Wiring Diagram, Basic for Audi A4 2009

List of elements for Front Information Display Control Module Wiring Diagram, Basic for Audi A4 2009:

• 18 pin
• Antenna amplifier 3 (wagon) (a4: left side of cargo area)
• Computer data lines system
• Connector t8a (not used)
• Front information display control head
• Front information display control head control module (a4: behind glove box)
• Fuse 10a
• Fuse carrier 2
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G687 (a4 avant & sedan: left side of center tunnel)
• Hot at all times
• Multimedia control head
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Power distribution system
• Radio, telephone & navigation system antenna (wagon w/ roof antenna) (a4 avant & sedan: center rear of roof)
• Red
• Sound systems
• T12q
• T12r
• T16j
• T8ab

Front Information Display Control Module Wiring Diagram, High for Audi A4 2009

List of elements for Front Information Display Control Module Wiring Diagram, High for Audi A4 2009:

• (not used)
• 18 pin connector t18a
• Computer data lines system
• Front information display control head
• Front information display control head control module (a4: behind glove box)
• Fuse 5a
• Fuse carrier 3
• G687 (a4 avant & sedan: left side of center tunnel)
• G688 (a4 avant & sedan: right side of center tunnel)
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Multimedia control head
• Nca
• Pnk
• Power distribution system
• Rear view camera system control module (a4: right side of trunk)
• Red
• Sound systems
• T20b
• T22a
• Tv tuner (if equipped) (a4: left side of trunk)
• W/ rear view camera
• W/o rear view camera

Instrument Cluster Wiring Diagram for Audi A4 2009

List of elements for Instrument Cluster Wiring Diagram for Audi A4 2009:

• (a4 avant & sedan: left side of center tunnel) g687
• Abs warning lamp ind
• Air bag malfunction indicator lamp (mil)
• Asr/ esp control lamp ind
• Computer data lines system
• Data bus on board diagnostic interface (a4: behind center of dash)
• Fuel level sensor & transfer fuel pump (fp)
• Fuel level sensor 2 (if equipped)
• Fuse 5a
• Fuse carrier 2
• G50 (a4 avant & sedan: left side of luggage compt)
• Hot at all times
• Instrument cluster control module
• Passenger's side fuse panel (a4: behind right end of dash)
• Radio frequency controlled clock
• Radio frequency controlled clock receiver
• Speedometer
• Tachometer

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for Audi A4 2009

List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Audi A4 2009:

• Ambient illumination
• Avant
• Comfort system center control module (a4: right side of trunk) t17p (s4: below driver's seat)
• Computer data lines system
• Driver's make-up mirror light contact switch
• Driver's side fuse panel (a4: behind left end of dash)
• Front passenger's make-up mirror light contact switch
• Fuse 5a
• Fuse carrier 1
• G50 (a4 avant & sedan: left side of luggage compt)
• G51 (a4 avant & sedan: right side of luggage compt)
• G639 (a4 avant & sedan: behind left kick panel)
• G654 (a4: top of right "d" pillar)
• G687 (a4 avant & sedan: left side of center tunnel)
• G730 (a4 avant & sedan: base of right "c" pillar)
• Glove compartment lamp switch
• Glove compartment light
• Left front footwell light
• Left luggage compartment light
• Left make-up mirror illumination
• Left rear footwell light
• Luggage compartment light
• Rear lid lock button
• Right front footwell light
• Right luggage compartment light
• Right make-up mirror illumination
• Right rear footwell light
• Sedan
• T16b
• T17l
• T17m
• T32a
• T32b
• T32c
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)
• W/ led
• W/o led

Courtesy Lamps Wiring Diagram (2 of 2) for Audi A4 2009

List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Audi A4 2009:

• Automatic day/ night interior mirror
• Computer data lines system
• Discontinued, phased in modification
• Driver side door control module (a4: in driver front door) (s4: integrated in driver's door window regulator motor)
• Driver's door contact switch
• Driver's door warning light
• Driver's map/ reading light
• Driver's reading light button
• Front interior lamp assembly
• Front interior light
• Front passenger side door control module (a4: in front passenger front door) (s4: integrated in right front door window regulator motor)
• Front passenger's door contact switch
• Front passenger's door warning light
• Front passenger's map/ reading light
• Front passenger's reading light button
• G639 (a4 avant & sedan: behind left kick panel)
• Instrument illumination circuit
• Interior illumination switch
• Left front entry light
• Left rear door contact switch
• Left rear door control module (a4: in left rear door)
• Left rear door warning light
• Left rear entry light
• Left rear interior light
• Left rear reading light switch
• Phased in modification
• Rear interior lamp assembly
• Red
• Right front entry light
• Right rear door contact switch
• Right rear door control module (a4: in right rear door)
• Right rear door warning light
• Right rear entry light
• Right rear interior light
• Right rear reading light switch 1
• T16o
• T16p
• T20f
• T20g
• T20h
• T20i
• T32j
• T32l
• T8b

Instrument Illumination Wiring Diagram (1 of 2) for Audi A4 2009

List of elements for Instrument Illumination Wiring Diagram (1 of 2) for Audi A4 2009:

• (a4: in left rear door) left rear door control module
• 12 v socket (if equipped)
• Center instrument panel vent illumi- nation
• Computer data lines system
• Dimmer switch
• Driver's side fuse panel (a4: behind left end of dash)
• Electromechanical parking brake button
• Fog lamp button
• Fuse 5a
• Fuse carrier
• G639 (a4 avant & sedan: behind left kick panel)
• G687 (a4 avant & sedan: left side of center tunnel)
• G688 (a4 avant & sedan: right side of center tunnel)
• Garage door opener control module (a4: behind center of front grille) (s4: behind right side front bumper cover)
• Hot at all times
• Hot w/ power relay (terminal 15) energized
• Instrument panel illumination
• Left instrument panel vent illumi- nation
• Left rear door opener illumination
• Left rear door warning light
• Left rear entry light
• Left rear interior lock switch
• Left rear window switch
• Light switch
• Parking aid button, asr/esp button & rear window shade switch
• Passenger's side fuse panel (a4: behind right end of dash)
• Rear fog lamp button
• Rear temperature selection potentiometer
• Right instrument panel vent illumination
• Right rear door control module (a4: in right rear door)
• Right rear door opener illumination
• Right rear door warning light
• Right rear entry light
• Right rear interior lock switch
• Right rear window switch
• T16b
• T16o
• T16p
• T17m
• T20h
• T20i
• T32a
• T32b
• Valet parking lock button
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)
• W/ navigation system
• W/o navigation system

Instrument Illumination Wiring Diagram (2 of 2) for Audi A4 2009

List of elements for Instrument Illumination Wiring Diagram (2 of 2) for Audi A4 2009:

• (a4 avant & sedan: right side of center tunnel) g688
• 12 v socket 2 (if equipped)
• Alarm system off switch
• Central locking safe indicator lamp
• Cigarette lighter
• Computer data lines system
• Driver side door control module (a4: in driver front door) (s4: integrated in driver's door window regulator motor)
• Driver's door opener illumination
• Driver's door warning light
• Driver's interior locking switch
• Driver's seat memory program control head (w/ memory)
• Front interior lamp assembly
• Front passenger side door control module (a4: in front passenger front door) (s4: integrated in right front door window regulator motor)
• Front passenger's door opener illumination
• Front passenger's door warning light
• Front passenger's interior lock switch
• G639 (a4 avant & sedan: behind left kick panel)
• G688 (a4 avant & sedan: right side of center tunnel)
• G730 (a4 avant & sedan: base of right "c" pillar)
• Left front entry light
• Left rear seat head restraint adjustment button
• Mirror adjustment switch
• Power window control head
• Rear lid remote unlock switch
• Right front entry light
• Right rear heated seat regulating switch
• Sunroof regulator
• T20f
• T20g
• T32j
• T32l
• T8b
• Telephone base plate (if equipped)
• Window regulator switch

MEMORY SYSTEMS

Memory Systems Wiring Diagram (1 of 3) for Audi A4 2009

List of elements for Memory Systems Wiring Diagram (1 of 3) for Audi A4 2009:

• (a4: under rear of driver seat cushion) driver's seat height adjustment motor/sensor
• Backrest
• Circuit breaker 1 15a
• Computer data lines system
• Driver power seat adjustment
• Driver's backrest adjustment motor/sensor (a4: in driver's front seat back)
• Driver's head restraint height adjustment motor/sensor
• Driver's seat adjustment control head
• Driver's seat fore/aft adjustment motor/sensor
• Driver's seat inclination adjustment motor/tilt adjustment sensor
• Fore/aft
• G639 (a4 sedan & avant: behind left kick panel)
• Height
• Hot at all times
• Memory seat/ steering column adjustment control module (a4: under driver's seat)
• Red
• Restraint head
• Seats system
• T10q
• T12l
• T16h
• T32g
• Tilt

Memory Systems Wiring Diagram (2 of 3) for Audi A4 2009

List of elements for Memory Systems Wiring Diagram (2 of 3) for Audi A4 2009:

• 11a
• Computer data lines system
• Day/night (if equipped)
• Driver door control module (a4: in driver front door) (s4: integrated in driver's door window regulator motor)
• Driver's exterior mirror assembly
• Driver's seat memory program control head
• Driver's side fuse panel (a4: behind left end of dash)
• Fold-in
• Fuse 15a
• Fuse 30a
• Fuse carrier
• G639 (a4 sedan & avant: behind left kick panel)
• Ground distribution system
• Heater
• Horizontal
• Hot at all times
• Interior lights system
• Lane change (if equipped)
• Navigation system
• Nca
• Pnk
• Power distribution system
• Red
• T16m
• T20f
• T32j
• Turn signal lamp
• Vertical

Memory Systems Wiring Diagram (3 of 3) for Audi A4 2009

List of elements for Memory Systems Wiring Diagram (3 of 3) for Audi A4 2009:

• 11a
• Adjustment switch
• Computer data lines system
• Day/night (if equipped)
• Fold away switch
• Fold-in
• Front passenger's door control module (a4: in front passenger's front door) (s4: integrated in right front door window regulator motor)
• Front passenger's exterior mirror assembly
• Fuse 15a
• Fuse 30a
• Fuse carrier 3
• G638 (a4 sedan & avant: behind right kick panel)
• Ground distribution system
• Heater
• Horizontal
• Hot at all times
• Interior lights system
• Lane change (if equipped)
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Mirror adjustment switch assembly
• Navigation system
• Nca
• Pnk
• Power distribution system
• Red
• Selector switch
• T16n
• T20g
• Turn signal lamp
• Vertical

NAVIGATION

Lane Departure Warning Wiring Diagram for Audi A4 2009

List of elements for Lane Departure Warning Wiring Diagram for Audi A4 2009:

• 10a
• Change lane
• Computer data lines system
• Directional stabilization assistance control module
• Directional stabilization assistance windshield heater
• Driver's exterior mirror assembly
• Driver's side fuse panel (a4: behind left end of dash)
• Fuse 10a
• Fuse 5a
• Fuse carrier
• G51 (a4 avant & sedan: right side of luggage compt)
• G639 (a4 avant & sedan: behind left kick panel)
• Interior lights system
• Lane change
• Lane change assistance button
• Lane change assistance control module (a4: on left taillight assembly)
• Lane change assistance control module 2 (a4: on right taillight assembly)
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Nca
• Passenger's exterior mirror assembly
• T2bs
• T2bu

Navigation Wiring Diagram, MMI 2 Basic (1 of 2) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 2 Basic (1 of 2) for Audi A4 2009:

• 18 pin connector (w/o speaker phone)
• Cd changer
• Computer data lines system
• Digital sound system control module (a4 avant: left rear of cargo area)
• External audio source connection (w/ mmi high)
• Front information display control head control module (w/o rear view camera)
• Fuse 30a
• Fuse 5a
• Fuse 7.5a
• Fuse carrier 2
• Fuse carrier 3
• G50 (a4: left side of luggage compt)
• G687 (a4 avant & sedan: left side of center tunnel)
• Hot at all times
• Left front mid-bass speaker
• Left front treble speaker
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Rear view camera system control module
• Right front mid-bass speaker
• Right front treble speaker
• T20c
• T32h
• Tv tuner
• W/ mmi high

Navigation Wiring Diagram, MMI 2 Basic (2 of 2) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 2 Basic (2 of 2) for Audi A4 2009:

• Antenna amplifier 2 (a4: right rear of roof)
• Antenna amplifier 3 (a4 sedan: left side of trunk) (a4 avant: left side of cargo area)
• Computer data lines system
• Fuse 7.5a
• Fuse carrier 3
• G50 (a4: left side of luggage compt)
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G62 (a4: right "c" pillar)
• Hot at all times
• Left rear mid/low range speaker
• Left rear treble speaker
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Navigation system w/ cd drive control module (left rear of luggage compt)
• Nca
• Radio
• Radio, telephone navigation system antenna (w/ roof antenna)
• Right rear mid/low range speaker
• Right rear treble speaker
• Satellite radio
• W/ speaker phone

Navigation Wiring Diagram, MMI 2 Premium (1 of 3) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 2 Premium (1 of 3) for Audi A4 2009:

• 18 pin connector (w/o speaker phone)
• Center mid/high range speaker
• Computer data lines system
• Digital sound system control module (a4 avant: left rear of cargo area) (a4 sedan: left rear of trunk)
• External audio source connection (7a3/7a6)
• Front information display control head control module (w/o rear view camera)
• Fuse 30a
• Fuse 7.5a
• Fuse carrier 3
• G50 (a4: left side of luggage compt)
• Hot at all times
• Inside microphone
• Left rear mid/low range speaker
• Left rear treble speaker
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Microphone unit (a4: in front roof module)
• Most data bus circuit
• Nca
• Rear view camera system control module
• Right rear mid/low range speaker
• Right rear treble speaker
• T18a
• T18b
• T20c
• T32h
• Telephone microphone
• Telephone transceiver (a4: under front passenger's seat)
• Tv tuner (a4: left side of trunk)
• Voice control microphone
• W/ speaker phone
• W/o speaker phone

Navigation Wiring Diagram, MMI 2 Premium (2 of 3) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 2 Premium (2 of 3) for Audi A4 2009:

• Antenna amplifier 2 (a4: right rear of roof)
• Antenna amplifier 3 (a4 sedan: left side of trunk) (a4 avant: left side of cargo area)
• Computer data lines system
• Fuse 7.5a
• Fuse carrier 3
• G50 (a4: left side of luggage compt)
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G62 (a4: right "c" pillar)
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Navigation system w/ cd drive control module (a4: left side of trunk)
• Nca
• Radio
• Radio, telephone navigation system antenna (w/ roof antenna)
• Satellite radio
• W/ speaker phone

Navigation Wiring Diagram, MMI 2 Premium (3 of 3) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 2 Premium (3 of 3) for Audi A4 2009:

• Cd changer
• Computer data lines system
• External audio source connection (w/ mmi high)
• Fuse 5a
• Fuse carrier 2
• G687 (a4: left side of center tunnel)
• Hot at all times
• Left front bass speaker
• Left front mid-bass speaker
• Left front treble speaker
• Left rear midrange speaker
• Most data bus circuit
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Right front bass speaker
• Right front midrange speaker
• Right front treble speaker
• Right rear midrange speaker
• Subwoofer
• W/ mmi high

Navigation Wiring Diagram, MMI 2 Standard (1 of 3) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 2 Standard (1 of 3) for Audi A4 2009:

• 18 pin connector
• Computer data lines system
• Digital sound system control module (a4 avant: left rear of cargo area) (a4 sedan: left rear of trunk)
• External audio source connection (7a3/7a6)
• Front information display control head control module (w/o rear view camera)
• Fuse 30a
• Fuse 7.5a
• Fuse carrier 3
• G50 (left side of luggage compt)
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Microphone unit (a4: in front roof module)
• Most data bus circuit
• Nca
• Rear view camera system control module
• T18a
• T20c
• T54a
• Telephone microphone
• Telephone transceiver (a4: under front passenger's seat)
• Tv tuner (a4: left side of trunk)
• Voice control microphone
• W/ speaker phone
• W/o speaker phone

Navigation Wiring Diagram, MMI 2 Standard (2 of 3) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 2 Standard (2 of 3) for Audi A4 2009:

• Antenna amplifier 2
• Antenna amplifier 3
• Computer data lines system
• Fuse 7.5a
• Fuse carrier
• G50 (left side of luggage compt)
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G62 (a4: right "c" pillar)
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Navigation system w/ cd drive control module (a4: left side of trunk)
• Nca
• Radio
• Radio, telephone navigation system antenna (w/ roof antenna)
• Satellite radio
• W/ speaker phone

Navigation Wiring Diagram, MMI 2 Standard (3 of 3) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 2 Standard (3 of 3) for Audi A4 2009:

• Cd changer
• Center mid/high range speaker
• Computer data lines system
• External audio source connection (w/ mmi high)
• Fuse 5a
• Fuse carrier 2
• G687 (left side of center tunnel)
• Hot at all times
• Left front mid-bass speaker
• Left front treble speaker
• Left rear mid/low range speaker
• Left rear treble speaker
• Most data bus circuit
• Nca
• Passenger's side fuse panel (under right side of dash)
• Right front mid-bass speaker
• Right front treble speaker
• Right rear mid/low range speaker
• Right rear treble speaker
• Subwoofer
• W/ mmi high

Navigation Wiring Diagram, MMI 3 Basic (1 of 2) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 3 Basic (1 of 2) for Audi A4 2009:

• 18-pin connector
• Antenna amplifier 3 (a4 sedan: left side of trunk) (a4 avant: left side of cargo area)
• Comfort system central control module (a4: right side of trunk)
• Computer data lines system
• Fuse 30a
• Fuse 7.5a
• Fuse carrier
• G50 (a4: left side of luggage compt)
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G62 (a4: right "c" pillar)
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Nca
• Radio
• Right front mid-bass speaker
• Right front treble speaker
• Right rear mid/ low range speaker
• Right rear treble speaker
• T10ag
• T12w
• T18a
• T1i
• T1l
• T20c
• T2dn
• T2do
• T8ag
• Tv tuner (if equipped) (a4: left side of trunk)

Navigation Wiring Diagram, MMI 3 Basic (2 of 2) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 3 Basic (2 of 2) for Audi A4 2009:

• Antenna amplifier 2 (a4: right rear of roof)
• Cd/dvd changer
• Computer data lines system
• Digital radio antenna
• Fuse 5a
• Fuse carrier 2
• G687 (a4: left side of center tunnel)
• Hot at all times
• Information electronics control module 1
• Left front mid-bass speaker
• Left front treble speaker
• Left rear mid/ low range speaker
• Left rear treble speaker
• Most data bus circuit
• Navigation system antenna
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Radio, telephone navigation system antenna
• Satellite antenna
• T1ac
• T1ae
• T1af
• T1ah
• T1ai
• T1n
• T1p
• T1w
• Telephone antenna
• Telephone base plate
• W/ speaker phone

Navigation Wiring Diagram, MMI 3 Premium (1 of 2) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 3 Premium (1 of 2) for Audi A4 2009:

• (a4 avant & sedan: left side of luggage compt) g50
• Antenna amplifier 2 (a4: right rear of roof)
• Antenna amplifier 3 (a4 sedan: left side of trunk) (a4 avant: left side of cargo area)
• Cd/dvd changer
• Comfort system central control module (a4: right side of trunk)
• Computer data lines system
• Digital radio antenna
• Fuse 30a
• Fuse 5a
• Fuse 7.5a
• Fuse carrier
• Fuse carrier 2
• G50 (a4 avant & sedan: left side of luggage compt)
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G62 (a4: right "c" pillar)
• G687 (a4: left side of center tunnel)
• Hot at all times
• Information electronics control module 1
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Navigation system antenna
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Radio
• Radio, telephone navigation system antenna
• Satellite antenna
• T10ag
• T1ac
• T1ae
• T1ah
• T1ai
• T1i
• T1l
• T1n
• T1p
• T1w
• T20c
• T2dg
• T2dn
• T2do
• Telephone antenna
• Telephone base plate
• Tv tuner (if equipped) (a4: left side of trunk)
• W/ speaker phone

Navigation Wiring Diagram, MMI 3 Premium (2 of 2) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 3 Premium (2 of 2) for Audi A4 2009:

• (a4 sedan: left rear of trunk)
• (a4: left side of luggage compt) g50
• Center mid/ high range speaker
• Computer data lines system
• Digital sound system control module (a4 avant: left rear of cargo area)
• Left front bass speaker
• Left front mid-bass speaker
• Left front treble speaker
• Left rear mid/ low range speaker
• Left rear midrange speaker
• Left rear treble speaker
• Microphone unit (a4: in front roof module)
• Most data bus circuit
• Nca
• Right front bass speaker
• Right front midrange speaker
• Right front treble speaker
• Right rear mid/ low range speaker
• Right rear midrange speaker
• Right rear treble speaker
• Subwoofer
• T18b
• T2dk
• T32h

Navigation Wiring Diagram, MMI 3 Standard (1 of 2) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 3 Standard (1 of 2) for Audi A4 2009:

• 18-pin connector
• Antenna amplifier 3 (a4 sedan: left side of trunk) (a4 avant: left side of cargo area)
• Comfort system central control module (a4: right side of trunk)
• Computer data lines system
• Fuse 30a
• Fuse 7.5a
• Fuse carrier
• G50 (a4: left side of luggage compt)
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G62 (a4: right "c" pillar)
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Nca
• Radio
• Right front mid-bass speaker
• Right front treble speaker
• Right rear mid/ low range speaker
• Right rear treble speaker
• T10ag
• T12w
• T18a
• T1i
• T1l
• T20c
• T2dg
• T2dn
• T2do
• T8ag
• Tv tuner (if equipped) (a4: left side of trunk)

Navigation Wiring Diagram, MMI 3 Standard (2 of 2) for Audi A4 2009

List of elements for Navigation Wiring Diagram, MMI 3 Standard (2 of 2) for Audi A4 2009:

• Antenna amplifier 2 (a4: right rear of roof)
• Cd/dvd changer
• Computer data lines system
• Digital radio antenna
• Fuse 5a
• Fuse carrier 2
• G687 (a4: left side of center tunnel)
• Hot at all times
• Information electronics control module 1
• Left front mid-bass speaker
• Left front treble speaker
• Left rear mid/ low range speaker
• Left rear treble speaker
• Most data bus circuit
• Navigation system antenna
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Radio, telephone navigation system antenna
• Satellite antenna
• T1ac
• T1ae
• T1af
• T1ah
• T1ai
• T1n
• T1p
• T1w
• Telephone antenna
• Telephone base plate
• W/ speaker phone

Parking Assistant Wiring Diagram for Audi A4 2009

List of elements for Parking Assistant Wiring Diagram for Audi A4 2009:

• Computer data lines system
• Front parking aid warning buzzer
• Fuse 5a
• Fuse carrier
• G51 (a4 avant & sedan: right side of luggage compt)
• G687 (w/ navigation) (a4 avant & sedan: left side of center tunnel)
• G688 (w/o navigation) (a4 avant & sedan: right side of center tunnel)
• Left front center parking aid sensor (a4: in front bumper)
• Left front parking aid sensor (a4: in front bumper)
• Left rear center parking aid sensor (a4: on rear bumper)
• Left rear parking aid sensor (a4: on rear bumper)
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Parallel parking assistance control module (a4: right side of trunk)
• Parking aid button (if equipped)
• Rear parking aid warning buzzer
• Right front center parking aid sensor (a4: on front bumper)
• Right front parking aid sensor (a4: front bumper)
• Right rear center parking aid sensor (a4: on rear bumper)
• Right rear parking aid sensor (a4: on rear bumper)
• T12e
• T12g
• T16e

Rear Camera Wiring Diagram for Audi A4 2009

List of elements for Rear Camera Wiring Diagram for Audi A4 2009:

• 12a
• Computer data lines system
• Front information display control head control module (a4: behind glove box)
• Fuse 5a
• Fuse carrier
• G51 (a4 avant & sedan: right side of luggage compt)
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Nca
• Pins: 1-38 (not used)
• Pins: 49-54 (not used)
• Rear view camera
• Rear view camera system control module (a4: right side of trunk)
• Tv tuner (a4: left side of trunk)

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 6) for Audi A4 2009

List of elements for Power Distribution Wiring Diagram (1 of 6) for Audi A4 2009:

• (not used)
• (w/ heated spray jet)
• 10a
• 11a
• 12a
• 2.0l
• 40a
• A/c pressure/ temperature sensor
• Abs control module
• Active steering control module
• Air quality sensor (w/ comfort)
• All wheel driver control module
• Asr/ esp button
• Automatic day/night interior mirror
• Battery
• Battery monitoring control module (a4: middle of luggage compt, on battery)
• Clutch position sensor (m/t)
• Comfort system central control module
• Data bus on board diagnostic interface
• Data link connector (dlc)
• Directional stabilization assistance control module
• Driver's seat multimedia
• Driver's side fuse panel (a4: behind left end of dash)
• Electronic damping control module
• Fuse
• Fuse 10a
• Fuse 110a
• Fuse 30a
• Fuse 5a
• Fuse carrier
• Fuse carrier 1
• Fuse panel a (a4: on battery, in luggage compt)
• G624 (a4 avant & sedan: middle of luggage compt, on battery)
• Garage door opener control head
• Garage door opener control module
• Generator voltage regulator
• Left headlamp assembly (w/ corne- ring lamps)
• Left washer nozzle heater
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Nca
• Passenger's seat multimedia
• Passenger's side fuse panel (a4: behind right end of dash)
• Rear lid control module
• Rear lid control module 2
• Rear window defogger fuse
• Rear window defogger relay
• Red
• Right washer nozzle heater
• Selector lever sensor system control module
• Shift lock solenoid
• Steering column electronic systems control module
• T32b
• T32d
• T8g
• To driver's side fuse panel (diagram 1 of 6)
• To driver's side fuse panel (diagram 6 of 6)
• To fuse 2 (diagram 2 of 6)
• To luggage compartment relay/fuse carrier (diagram 3 of 6)
• To luggage compartment relay/fuse carrier (diagram 4 of 6)
• To right headlamp assembly (diagram 2 of 6)
• To sockets relay (diagram 4 of 6)
• To starter relay 2 (diagram 5 of 6)
• Vehicle electrical system control module
• W/ comfort

Power Distribution Wiring Diagram (2 of 6) for Audi A4 2009

List of elements for Power Distribution Wiring Diagram (2 of 6) for Audi A4 2009:

• (400w)
• (600w & 1000w)
• (not used)
• (w/ mmi) (radio)
• 10a
• 11a
• 12a
• 2.0l
• 3.2l
• 40a
• 50a
• 60a
• Abs control module
• Abs control module fuse 1
• Access/ start authorization switch
• Air bag control module
• Battery interrupt igniter
• Battery jump start terminal (a4: middle of engine compt plenum chamber)
• Cd changer
• Charisma switch module
• Climatronic control module
• Coolant fan control module (3.2l)
• Coolant fan control module 2 (3.2l)
• Data bus on board diagnostic interface
• Data link connector (dlc)
• Electronic steering column lock control module
• Engine control module (ecm)
• External audio source connection
• Fresh air blower control module
• From a fuse 1 (diagram 1 of 6)
• From driver's side fuse panel (diagram 1 of 6)
• Front information display control head
• Front information display control head control module
• Fuse
• Fuse 1 40a
• Fuse 10a
• Fuse 110a
• Fuse 3 10a 20a
• Fuse 40a
• Fuse 5a
• Fuse carrier
• Fuse panel a (a4: on battery, in luggage compt)
• Generator & voltage regulator
• Headlamp range control module
• Headlamp range/ cornering lamp control module
• Instrument cluster control module
• Light switch
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Radio
• Red
• Right headlamp assembly
• Secondary air injection (air) pump fuse
• Secondary air injection (air) pump relay (w/ eus/ ulev2)
• Starter
• Steering column electronic systems control module
• Suppressor
• T16j
• T16l
• T20e
• T26a
• T94
• To driver power seat adjustment (diagram 6 of 6)
• To driver's side fuse panel (diagram 6 of 6)
• To e-box relay/ fuse carrier (diagram 5 of 6)
• To e-box relay/fuse carrier (diagram 5 of 6)
• W/ cornering lamps
• W/ mmi high
• W/ navigation
• W/o cornering lamps
• W/o navigation

Power Distribution Wiring Diagram (3 of 6) for Audi A4 2009

List of elements for Power Distribution Wiring Diagram (3 of 6) for Audi A4 2009:

• (a4: right side of luggage compt) luggage compartment relay/fuse carrier
• (w/ mmi)
• 10a
• 11a
• 12 pin connector (not used)
• 12a
• 18 pin connector (not used)
• All wheel drive control module
• Auxiliary heater control module
• Auxiliary heater radio receiver
• Comfort system central control module
• Digital radio (dab)
• Digital sound system control module
• Discontinued (phased in modification)
• Electro- mechanical parking brake button
• Electro- mechanical parking brake control module
• Electronic damping control module
• From fuse panel a (diagram 1 of 6)
• Front information display control head control module
• Front passenger's door control module
• Fuse 1 15a 30a
• Fuse 15a
• Fuse 20a
• Fuse 30a
• Fuse 35a
• Fuse 5a
• Fuse 7.5a
• Fuse carrier 2
• Fuse carrier 3
• Information electronics control module 1
• Left rear heated seat regulating switch
• Navigation system w/ cd drive control module
• Nca
• Phased in modification
• Radio
• Radio (k-box)
• Rear view camera system control module
• Red
• Right front seat ventilation control module
• Right rear door control module
• Right rear heated seat regulating switch
• Satellite radio
• T10ag
• T12u
• T17o
• T17p
• T18a
• T20b
• T20g
• T20i
• T32h
• T4b
• T8ao
• Telephone amplifier
• Telephone baseplate
• Telephone transc- eiver
• Telephone transceiver
• Tire pressure monitoring control module
• To converter w/ socket 12v & 230v (diagram 4 of 6)
• Towing recognition control module
• Tv tuner
• W/ navigation
• W/ speaker
• W/o navigation
• W/o speaker

Power Distribution Wiring Diagram (4 of 6) for Audi A4 2009

List of elements for Power Distribution Wiring Diagram (4 of 6) for Audi A4 2009:

• (a4: right side of luggage compt) g51
• (a4: right side of luggage compt) luggage compartment relay/fuse carrier
• 1, 2 & 3
• 1, 2, 3 & 4
• 10a
• 11a
• 12 v socket (if equi- pped)
• 12 v socket 3 (if equipped)
• 12a
• 18 pin connector (not used)
• 2.0l
• 3.2l
• Air bag control module
• Camshaft adjustment actuator 10
• Camshaft adjustment actuator 11
• Camshaft adjustment actuator 12
• Camshaft adjustment actuator 7
• Camshaft adjustment actuator 8
• Camshaft adjustment actuator 9
• Cigarette lighter
• Comfort system central control module
• Converter w/ socket, 12v & 230v (if equipped)
• Distance regulation control module
• Electro- mechanical parking brake button
• Emergency flasher button
• From fuse panel a (diagram 1 of 6)
• From luggage compartment m relay/fuse carrier (diagram 1 of 6)
• From luggage compartment relay/fuse carrier (diagram 3 of 6)
• Fuse 15a
• Fuse 5a
• Fuse carrier
• G51 (a4 avant & sedan: right side of luggage compt)
• G688 (a4 avant & sedan: right side of center tunnel)
• G730 (a4 avant & sedan: base of right "c" pillar)
• Interior lights system
• Lane change assistance control module
• Lane change assistance control module 2
• Left rear heated seat regulating switch
• Nca
• Parallel parking assistance control module
• Rear window wiper motor
• Red
• Right rear heated seat regulating switch
• Seat occupied recognition control module
• Sockets relay (a4: luggage compt relay/ fuse carrier)
• T16e
• T18a
• T32c
• To cam adjustment actuator 1 (diagram 5 of 6)
• W/ converter & socket, 12v & 230v
• W/ converter & socket, 12v, 230v &
• W/o 12 v socket in backside of the center console & luggage compartment
• W/o converter w/ socket, 12v & 230v
• W/o converter w/ socket, 12v, 230v &
• W/o speaker phone

Power Distribution Wiring Diagram (5 of 6) for Audi A4 2009

List of elements for Power Distribution Wiring Diagram (5 of 6) for Audi A4 2009:

• (2.0l)
• (2.0l) (3.2l)
• (a4: in plenum chamber electronics
• 10a
• 11a
• 12a
• 2.0l
• 2.0l t94
• 3.2l
• 3.2l t94
• 6 speed a/t
• Box) e-box relay/ fuse carrier
• Cam adjustment actuator 1
• Cam adjustment actuator 2
• Cam adjustment actuator 3
• Cam adjustment actuator 4
• Cam adjustment actuator 5
• Cam adjustment actuator 6
• Camshaft adjustment valve 1
• Camshaft adjustment valve 1 (exhaust) (3.2l)
• Camshaft adjustment valve 2 (3.2l)
• Camshaft adjustment valve 2 (exhaust) (3.2l)
• Climatronic refrigerant shut-off valve
• Coolant circulation pump relay (w/ after run coolant pump)
• Coolant fan control module (3.2l)
• Cvt
• Direct shift gearbox (dsg) mechatronic
• Engine control module (ecm)
• Evaporative emission (evap) canister purge regulator valve (2.0l)
• From camshaft adjustment actuator 12 (diagram 4 of 6)
• Fuel pressure regulator valve
• Fuse 10a 15a
• Fuse 12 5a (2.0l)
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Fuse 9 15a (3.2l)
• Heater oxygen sensor
• Heater oxygen sensor 2
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Intake manifold runner control (imrc) valve (2.0l)
• Leak detection pump (ldp) (2.0l)
• Left electo- hydraulic engine mount solenoid valve (a/t)
• Mass air flow (maf) sensor
• Nca
• Oil level thermal sensor
• Oil pressure regulation valve (2.0l)
• Red
• Starter relay
• Starter relay 2
• T16r
• T94
• To brake light switch (diagram 6 of 6)
• To intake manifold tuning (imt) valve (diagram 6 of 6)
• Transmission control
• Transmission control module (tcm)
• Turbocharger recirculating valve (2.0l)
• Twc oxygen sensor (o2s) 1
• Twc oxygen sensor (o2s) 2
• W/ direct shift gearbox
• W/o direct shift gearbox
• Wastegate bypass regulator valve (2.0l)

Power Distribution Wiring Diagram (6 of 6) for Audi A4 2009

List of elements for Power Distribution Wiring Diagram (6 of 6) for Audi A4 2009:

• (not used)
• 10a
• 11a
• 12a
• 3.2l
• Abs control module
• Active steering control module
• Alarm horn
• Antenna amplifier 3
• Anti-theft alarm system sensor
• Brake light switch
• Circuit breaker 1 15a
• Clutch position sensor (m/t)
• Driver power seat adjustment
• Driver's door control module
• Driver's power seat switch
• Driver's seat lumbar support adjustment switch
• Driver's seat lumbar support adjustment switch (w/ lumbar seats)
• Driver's side fuse panel (a4: behind left end of dash)
• Evaporative emission (evap) canister purge regul- ator valve
• From e-box relay/ fuse carrier (diagram 5 of 6)
• From fuse panel a (diagram 2 of 6)
• Front passenger power seat adjustment
• Front passenger's seat lumbar support adjustment switch
• Front passenger's seat lumbar support adjustment switch (w/ lumbar seats)
• Fuel metering valve
• Fuel pump (fp) control module
• Fuse
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 25a
• Fuse 30a
• Fuse 35a
• Fuse 5 15a 30a
• Fuse 5a
• Fuse carrier
• Horn relay
• Intake manifold tuning (imt) valve
• Leak detection pump (ldp)
• Left front seat ventilation control module
• Left rear door control module
• Memory seat steering column adjustment control module (if equipped)
• Nca
• Oil pressure regulation valve
• Passenger's power seat switch
• Power sunroof control module
• Rain/light recognition sensor
• Recirculation pump relay (w/ coolant pump & 3.2l)
• Red
• Roof blind control module
• Secondary air injection (air) pump relay (w/ eu5/ule2)
• Secondary air injection (air) solenoid valve (w/ ulev2)
• Secondary air injection (air) solenoid valve 2 (w/ ulev2)
• T12l
• T17l
• T17m
• T17n
• T20f
• T20h
• T5d
• T6f
• Vehicle electrical system control module
• W/ power seat
• W/ seat ventilation
• W/o seat ventilation
• Wiper motor control module

POWER DOOR LOCKS

Power Door Locks Wiring Diagram (1 of 3) for Audi A4 2009

List of elements for Power Door Locks Wiring Diagram (1 of 3) for Audi A4 2009:

• (a4: in driver's door handle) left front outside door handle touch sensor
• (a4: right side of luggage compt) g51
• (s4: below driver's seat) comfort system central control module
• 11a
• Antenna amplifier 3 (a4 sedan: left side of trunk) (a4 avant: left side of cargo area)
• Central locking & anti-theft alarm system antenna
• Computer data lines system
• Discontinued, phased in
• Driver's door central locking lock unit (s4: rear of driver's door)
• Driver's door control module (a4: in driver's front door) (s4: integrated in driver's door window regulator motor)
• Driver's side fuse panel (a4: behind left end of dash)
• Fuse 15a
• Fuse 30a
• Fuse carrier 2
• G51 (a4: right side of luggage compt)
• G639 (a4: behind left kick panel)
• Hot at all times
• Left license plate light
• Modificaton
• Nca
• Phased in modification
• Rear lid lock cylinder unlock button
• Red
• Right front outside door handle touch sensor
• Right license plate light
• T17o
• T20f
• T32c
• T32d
• T32e
• T32j
• Trunk lid alarm switch/rear lid central locking system motor
• W/ mmi
• W/o mmi

Power Door Locks Wiring Diagram (2 of 3) for Audi A4 2009

List of elements for Power Door Locks Wiring Diagram (2 of 3) for Audi A4 2009:

• (a4: base of right "c" pillar) g730
• (a4: behind left kick panel) g639
• Central locking- safe-indicator lamp
• Discontinued, phased in modificaton
• Driver's interior locking switch
• G639 (a4: behind left kick panel)
• Ground distribution system
• Interior lights system
• Left rear central locking lock unit
• Left rear door control module (a4: in left rear door)
• Left rear interior lock switch
• Left rear outside door handle touch sensor
• Phased in modification
• Rear lid remote unlock switch
• Red
• Right rear interior lock switch
• Right rear outside door handle touch sensor
• T16o
• T20h

Power Door Locks Wiring Diagram (3 of 3) for Audi A4 2009

List of elements for Power Door Locks Wiring Diagram (3 of 3) for Audi A4 2009:

• (a4: behind right kick panel) g638
• (s4: rear of passenger's door) front passenger door central locking lock unit
• 11a
• Computer data lines system
• Discontinued, phased in modificaton
• Front passenger interior lock switch
• Front passenger's door control module (a4: in front passenger's front doors) (s4: integrated in right front door window regulator motor)
• Fuse 15a
• Fuse 30a
• Fuse carrier 3
• G730 (a4: base of right "c" pillar)
• Ground distribution system
• Hot at all times
• Interior lights system
• Phased in modification
• Relay/ fuse carrier luggage compartment (a4: right side of luggage compt)
• Right rear central locking lock unit
• Right rear door control module (a4: in right rear door)
• T16p
• T20g
• T20i
• T32i

POWER MIRRORS

Automatic Day/Night Mirror Wiring Diagram, with Humidity Sensor for Audi A4 2009

List of elements for Automatic Day/Night Mirror Wiring Diagram, with Humidity Sensor for Audi A4 2009:

• 11a
• Automatic day/night interior mirror
• Comfort system central control module (s4: below driver's seat)
• Computer data lines system
• Day/night
• Driver door control module (a4: in front passenger door) (s4: integrated in driver's door window regulator motor)
• Driver side fuse panel (a4: behind left end of dash)
• Driver's exterior mirror assembly
• Exterior lights system
• Front passenger's door control module (a4: in front passenger door) (s4: integrated in right front door window regulator motor)
• Front passenger's exterior mirror assembly
• Fuse 15a
• Fuse 5a
• Fuse carrier
• Fuse carrier 1
• G638 (a4: behind right kick panel)
• G639 (a4: behind left kick panel)
• Ground distribution system
• Hot at all times
• Interior lights system
• Light recog- nition sensor
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Power distribution system
• T16m
• T16n
• T17p
• T20f
• T20g
• W/ automatic high beam control
• W/ comfort
• W/o automatic high beam control

Automatic Day/Night Mirror Wiring Diagram, without Humidity Sensor for Audi A4 2009

List of elements for Automatic Day/Night Mirror Wiring Diagram, without Humidity Sensor for Audi A4 2009:

• 11a
• Automatic day/night interior mirror
• Comfort system central control module (s4: below driver's seat)
• Computer data lines system
• Day/night
• Driver door control module (a4: in front passenger door) (s4: integrated in driver's door window regulator motor)
• Driver side fuse panel (a4: behind left end of dash)
• Driver's exterior mirror assembly
• Exterior lights system
• Front passenger's door control module (a4: in front passenger door) (s4: integrated in right front door window regulator motor)
• Front passenger's exterior mirror assembly
• Fuse 15a
• Fuse 5a
• Fuse carrier
• Fuse carrier 1
• G638 (a4: behind right kick panel)
• G639 (a4: behind left kick panel)
• Ground distribution system
• Hot at all times
• Interior lights system
• Light recog- nition sensor
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Power distribution system
• T16m
• T16n
• T17p
• T20f
• T20g
• W/ comfort

Power Mirrors Wiring Diagram (1 of 2) for Audi A4 2009

List of elements for Power Mirrors Wiring Diagram (1 of 2) for Audi A4 2009:

• 11a
• Computer data lines system
• Day/night (if equipped)
• Driver door control module (a4: in driver front door) (s4: integrated in driver's door window regulator motor)
• Driver's exterior mirror assembly
• Driver's side fuse panel (a4: behind left end of dash)
• Fold-in
• Fuse 15a
• Fuse 30a
• Fuse carrier 2
• Fuse carrier 3
• G639 (a4: behind left kick panel)
• Ground distribution system
• Heater
• Horizontal
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Pnk
• Power distribution system
• Red
• T16m
• T20f
• T32j
• Turn signal lamp
• Vertical

Power Mirrors Wiring Diagram (2 of 2) for Audi A4 2009

List of elements for Power Mirrors Wiring Diagram (2 of 2) for Audi A4 2009:

• Adjustment switch
• Computer data lines system
• Day/night (if equipped)
• Fold away switch
• Fold-in
• Front passenger's door control module (a4: in front passenger's door) (s4: integrated in right front door window regulator motor)
• Front passenger's exterior mirror assembly
• G638 (a4: behind right kick panel)
• Ground distribution system
• Heater
• Horizontal
• Interior lights system
• Mirror adjustment switch assembly
• Pnk
• Red
• Selector switch
• T16n
• T20g
• Turn signal lamp
• Vertical

POWER SEATS

Front Seat Heater Wiring Diagram, with Memory Seats with Ventilation for Audi A4 2009

List of elements for Front Seat Heater Wiring Diagram, with Memory Seats with Ventilation for Audi A4 2009:

• Backrest heater
• Circuit breaker 1 15a
• Driver power seat adjustment
• Driver's backrest heating element
• Driver's seat backrest fan (a4: top of driver seat backrest)
• Driver's seat backrest fan 2 (a4: middle of driver seat backrest)
• Driver's seat cushion fan (a4: under front of driver seat cushion)
• Driver's seat cushion fan 2 (a4: under rear of driver seat cushion)
• Driver's seat heater
• G639 (a4 avant & sedan: behind left kick panel)
• Hot at all times
• Left front seat temp sensor
• Memory seat/steering column adjustment control module (a4: under driver's seat)
• Red
• Seat heater
• Side bolster heater
• T12l
• T16h

Front Seat Heater Wiring Diagram, without Memory Seats with Ventilation for Audi A4 2009

List of elements for Front Seat Heater Wiring Diagram, without Memory Seats with Ventilation for Audi A4 2009:

• (a4 avant & sedan: behind left kick panel) g639
• Backrest bolster heater
• Driver backrest heating element
• Driver seat backrest blower fan (a4: top of driver seat backrest)
• Driver seat backrest blower fan 2 (a4: middle of driver seat backrest)
• Driver seat cushion blower fan (a4: under front of driver seat cushion)
• Driver seat cushion blower fan 2 (a4: under rear of driver seat cushion)
• Driver's side fuse panel (a4: behind left end of dash)
• Front passenger backrest heating element
• Front passenger seat backrest fan (a4: top of passenger seat backrest)
• Front passenger seat backrest fan 2 (a4: middle of passenger seat backrest)
• Front passenger seat cushion fan (a4: under front of passenger seat cushion)
• Front passenger seat cushion fan 2 (a4: under rear of passenger seat cushion)
• Fuse 15a
• Fuse carrier
• G730 (a4 avant & sedan: base of right
• Heater
• Heating element
• Hot at all times
• Left front seat heater
• Left front seat ventilation control module (under driver's seat cushion)
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Red
• Right front seat heater
• Right front seat ventilation control module (under front passenger's seat cushion)
• Seat temperature sensor
• Side bolster
• Side bolster heater
• T16b
• Temperature sensor heater
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)
• W/ phased in modification
• W/o phased in modification

Front Seat Heater Wiring Diagram, without Ventilation for Audi A4 2009

List of elements for Front Seat Heater Wiring Diagram, without Ventilation for Audi A4 2009:

• 11a
• Fuse 30a
• Fuse 5a
• Fuse carrier 3
• Fuse carrier 4
• G688 (a4 avant & sedan: right side of center tunnel)
• G730 (a4 avant & sedan: base of right "c" pillar)
• Heated seat temp sensor
• Hot at all times
• Left rear backrest heating element
• Left rear heated seat regulating switch
• Left rear seat heater
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Right rear backrest heating element
• Right rear heated seat regulating switch
• Right rear seat heater
• Seat heater
• Seat occupied sensor
• T32b
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)

Lumbar Wiring Diagram for Audi A4 2009

List of elements for Lumbar Wiring Diagram for Audi A4 2009:

• (a4: in driver front seat back)
• Driver seat lumbar support curvature adjustment motor (a4: in driver front seat back)
• Driver seat lumbar support height adjustment motor
• Driver's seat lumbar support adjustment switch
• Driver's side fuse panel (a4: behind left end of dash)
• Front passenger seat lumbar support height adjustment motor (a4: in right front seat back)
• Front passenger's seat lumbar support adjustment switch
• Front passenger's seat lumbar support curvature adjustment motor (a4: in right front seat back)
• Fuse 10a
• Fuse carrier 3
• G639 (a4 avant & sedan: behind left kick panel)
• G730 (a4 avant & & sedan: base of right "c" pillar)
• Hot at all times
• Lumbar curv- ature
• Lumbar height

Power Seats Wiring Diagram for Audi A4 2009

List of elements for Power Seats Wiring Diagram for Audi A4 2009:

• Backrest
• Circuit breaker 15a
• Driver power seat adjustment
• Driver's backrest adjustment motor (a4: in driver front seat back)
• Driver's power seat switch
• Driver's seat fore/aft adjustment motor
• Driver's seat height adjustment motor (a4: under rear of driver seat cushion)
• Driver's seat inclination adjustment motor
• Driver's seat lumbar support adjustment switch
• Driver's seat lumbar support curvature adjustment motor (a4: in driver front seat back)
• Driver's seat lumbar support height adjustment motor (a4: in driver front seat back)
• Fore/ aft
• Fore/aft
• Front passenger power seat adjustment
• Front passenger seat lumbar support adjustment switch
• Front passenger seat lumbar support curvature adjustment motor (a4: in passenger front seat back)
• Front passenger seat lumbar support height adjustment motor (a4: in passenger front seat back)
• Front passenger's backrest adjustment motor (a4: in passenger's front seat back)
• Front passenger's power seat switch
• Front passenger's seat fore/aft adjustment motor
• Front passenger's seat height adjustment motor (a4: under rear of passenger seat cushion)
• Front passenger's seat inclination adjustment motor
• G639 (a4 avant & & sedan: behind left kick panel)
• G730 (a4 avant & sedan: base of right "c" pillar)
• Height
• Hot at all times
• Tilt

Rear Seat Heater Wiring Diagram for Audi A4 2009

List of elements for Rear Seat Heater Wiring Diagram for Audi A4 2009:

• Backrest heater
• Backrest side bolster heater
• Computer data lines system
• Driver's backrest heating element
• Driver's seat heater
• Driver's side fuse panel (a4: behind left end of dash)
• Front passenger's backrest heating element
• Front passenger's seat heater
• Fuse 30a
• Fuse carrier 2
• G639 (a4 avant & sedan: behind left kick panel)
• G730 (a4 avant & sedan: base of right "c" pillar)
• Hot at all times
• Left front seat temp sensor
• Right front seat temp sensor
• Seat heater
• Side bolster heater (if equipped)
• Side bolster heater 2 (if equipped)
• T16b
• T32b
• T6f
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagram, with Roof Blind for Audi A4 2009

List of elements for Power Top/Sunroof Wiring Diagram, with Roof Blind for Audi A4 2009:

• 11a
• Computer data lines system
• Driver's side fuse panel (behind left end of dash)
• Fuse 20a
• Fuse carrier 3
• G639 (behind left kick panel)
• G639 (behind left left kick panel)
• Hot at all times
• Power sunroof control module (center front of roof)
• Red
• Roof blind control module
• Sunroof regulator

Power Top/Sunroof Wiring Diagram, without Roof Blind for Audi A4 2009

List of elements for Power Top/Sunroof Wiring Diagram, without Roof Blind for Audi A4 2009:

• Comfort system central control module (right side of trunk)
• Computer data lines system
• Driver's side fuse panel (behind left end of dash)
• Fuse 20a
• Fuse carrier 3
• G639 (behind left kick panel)
• Hot at all times
• Interior lights system
• Power sunroof control module (center front of roof)
• Sunroof regulator
• T32c

POWER WINDOWS

Power Windows Wiring Diagram (1 of 2) for Audi A4 2009

List of elements for Power Windows Wiring Diagram (1 of 2) for Audi A4 2009:

• Computer data lines system
• Discontinued phased in modification
• Driver window regulator motor
• Driver's door control module (a4: in driver's front door) (s4: integrated in driver's door window regulator motor)
• Driver's side fuse panel (a4: behind left end of dash)
• Front passenger window regulator motor
• Front passenger's door control module (a4: in passenger's front door) (s4: integrated in right front door window regulator motor)
• Fuse 30a
• Fuse carrier
• G638 (a4 avant & sedan: behind right kick panel)
• G639 (a4 avant & sedan: behind left kick panel)
• Ground distribution system
• Hot at all times
• Interior lights
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Phased in modification
• Right front window regulator switch
• T20f
• T20g
• T2og
• T32j
• T32l
• T6a0
• T6am
• W/ additional lighting equipment

Power Windows Wiring Diagram (2 of 2) for Audi A4 2009

List of elements for Power Windows Wiring Diagram (2 of 2) for Audi A4 2009:

• (s4: behind left quarterpanel) left rear window regulator motor
• (s4: behind right quarterpanel) right rear window regulator motor
• Discontinued phased in modification
• Driver's door power window control head
• Interior lights system
• Left front window regulator switch
• Left rear door control module (a4: in left rear door)
• Left rear window regulator switch
• Left rear window switch
• Phased in modification
• Right front window regulator switch
• Right rear door control module (a4: in right rear door)
• Right rear window regulator switch
• Right rear window switch
• T16o
• T16p
• T20h
• T20i
• T6au
• T6av
• W/ additional lighting equipment

RADIO

MOST Data Bus Wiring Diagram, MMI 2 for Audi A4 2009

List of elements for MOST Data Bus Wiring Diagram, MMI 2 for Audi A4 2009:

• (a4 sedan: left rear of trunk)
• Basic
• Cd changer
• Data bus on board diagnostic interface (a4: behind center of dash)
• Digital radio
• Digital sound system control module (a4 avant: left rear of cargo area)
• Digital sound system control module (a4 avant: left rear of cargo area) (a4 sedan: left rear of trunk)
• Except premium
• External audio source connection
• Front information display control head control module (a4: behind glove box)
• High
• Lwl in
• Lwl out
• Navigation system w/ cd drive control module (a4: left side of trunk)
• Nca
• Premium
• Radio
• Satellite radio/ digital radio
• Telephone transceiver (a4: under front passenger's seat)
• Tv tuner (a4: left side of trunk)

MOST Data Bus Wiring Diagram, MMI 3 for Audi A4 2009

List of elements for MOST Data Bus Wiring Diagram, MMI 3 for Audi A4 2009:

• Cd changer/ dvd changer
• Data bus on board diagnostic interface (a4: behind center of dash)
• Digital sound system control module (a4 avant: left rear of cargo area) (a4 sedan: left rear of trunk)
• Except premium
• Information electronics control module 1
• Lwl in
• Lwl out
• Nca
• Premium
• Radio
• T2dg
• T2dk
• Tv tuner
• W/ premium
• W/ premium & standard

Multimedia Interface Wiring Diagram (1 of 2) for Audi A4 2009

List of elements for Multimedia Interface Wiring Diagram (1 of 2) for Audi A4 2009:

• (a4: left side of center tunnel) g687
• (a4: right side of center tunnel) g688
• (or nca)
• (w/o speaker phone)
• 18 pin connector t18a
• Computer data lines system
• Front information display control head (a4: behind glove box)
• Fuse 10a
• Fuse 5a
• Fuse 7.5a
• Fuse carrier
• Fuse carrier 2
• G687 (a4: left side of center tunnel)
• Hot at all times
• Information electronics control module 1
• Left microphone
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Microphone unit
• Mmi basic
• Mmi high
• Most data bus circuit
• Multimedia control head
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Rear view camera system control module (if equipped) (right rear of luggage compt)
• Red
• Right microphone
• T12x
• T1o
• T1p
• T1s
• T1w
• T2di
• T32b
• T4al
• T4am
• T4ao
• T8ah
• T8ai
• T8ao
• Telephone baseplate (w/ speaker)
• Telephone baseplate (w/o speaker)
• Vehicle electric system control module (a4: under left side of dash) (s4: behind driver's storage compt)
• W/ speaker
• W/o speaker

Multimedia Interface Wiring Diagram (2 of 2) for Audi A4 2009

List of elements for Multimedia Interface Wiring Diagram (2 of 2) for Audi A4 2009:

• (or nca)
• 7a3/7a6
• 7d3/uf7
• Antenna amplifier 2 (sedan) (a4: right rear of roof)
• Antenna amplifier 3 (a4 sedan: left side of trunk) (a4 avant: left side of cargo area)
• Comfort system central control module (a4: right side of trunk)
• External audio source connection
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G62 (a4: right "c" pillar)
• Information electronics control module 1
• Navigation system antenna
• Nca
• Radio (if equipped)
• Radio, telephone & navigation system antenna (sedan)
• Red
• Satellite antenna
• T12y
• T1ac
• T1ae
• T1af
• T1ah
• T1ai
• T1i
• T1l
• T1m
• T1n
• T2dn
• T4ap
• Telephone antenna
• Tv tuner (if equipped) (a4: left side of trunk)

Radio Wiring Diagram, Basic Infotainment (1 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, Basic Infotainment (1 of 2) for Audi A4 2009:

• 18 pin connector
• 7a3/uf0
• 7d3/uf7
• Antenna amplifier
• Computer data lines system
• External audio source connection (7a3/uf0)
• External audio source connection (7d3/uf7)
• Fuse 20a
• Fuse 5a
• Fuse carrier 2
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G687 (a4 avant & sedan: left side of center tunnel)
• G687 (a4: left side of center tunnel)
• G688 (a4 avant & sedan: right side of center tunnel)
• Hot at all times
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Radio
• Radio, telephone navigation system antenna (w/ roof antenna)
• T12a
• T12s
• T16l
• T18a
• T8k
• Telephone transceiver (a4: under front passenger's seat)
• W/ speaker phone
• W/o speaker phone

Radio Wiring Diagram, Basic Infotainment (2 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, Basic Infotainment (2 of 2) for Audi A4 2009:

• Cd/dvd changer
• Computer data lines system
• Front information display control head control module (w/ radio) (a4: behind glove box)
• Fuse 5a
• Fuse carrier 2
• G687 (a4: left side of center tunnel)
• Hot at all times
• Left front mid-bass speaker
• Left front treble speaker
• Left rear mid/low range speaker
• Left rear treble speaker
• Most data bus circuit
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Right front mid-bass speaker
• Right front treble speaker
• Right rear mid/low range speaker
• Right rear treble speaker

Radio Wiring Diagram, MMI 2 Basic (1 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 2 Basic (1 of 2) for Audi A4 2009:

• 18 pin connector (w/o speaker phone)
• Cd changer
• Computer data lines system
• Digital sound system control module (a4 avant: left rear of cargo area)
• External audio source connection (w/ mmi high)
• Front information display control head control module (w/o rear view camera)
• Fuse 30a
• Fuse 5a
• Fuse 7.5a
• Fuse carrier 2
• Fuse carrier 3
• G50 (a4: left side of luggage compt)
• G687 (a4 avant & sedan: left side of center tunnel)
• Hot at all times
• Left front mid-bass speaker
• Left front treble speaker
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Rear view camera system control module
• Right front mid-bass speaker
• Right front treble speaker
• T20c
• T32h
• Tv tuner
• W/ mmi high

Radio Wiring Diagram, MMI 2 Basic (2 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 2 Basic (2 of 2) for Audi A4 2009:

• Antenna amplifier 2 (a4: right rear of roof)
• Antenna amplifier 3 (a4 sedan: left side of trunk) (a4 avant: left side of cargo area)
• Computer data lines system
• Fuse 7.5a
• Fuse carrier 3
• G50 (a4: left side of luggage compt)
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G62 (a4: right "c" pillar)
• Hot at all times
• Left rear mid/low range speaker
• Left rear treble speaker
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Navigation system w/ cd drive control module (left rear of luggage compt)
• Nca
• Radio
• Radio, telephone navigation system antenna (w/ roof antenna)
• Right rear mid/low range speaker
• Right rear treble speaker
• Satellite radio
• W/ speaker phone

Radio Wiring Diagram, MMI 2 Premium (1 of 3) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 2 Premium (1 of 3) for Audi A4 2009:

• 18 pin connector (w/o speaker phone)
• Center mid/high range speaker
• Computer data lines system
• Digital sound system control module (a4 avant: left rear of cargo area) (a4 sedan: left rear of trunk)
• External audio source connection (7a3/7a6)
• Front information display control head control module (w/o rear view camera)
• Fuse 30a
• Fuse 7.5a
• Fuse carrier 3
• G50 (a4: left side of luggage compt)
• Hot at all times
• Inside microphone
• Left rear mid/low range speaker
• Left rear treble speaker
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Microphone unit (a4: in front roof module)
• Most data bus circuit
• Nca
• Rear view camera system control module
• Right rear mid/low range speaker
• Right rear treble speaker
• T18a
• T18b
• T20c
• T32h
• Telephone microphone
• Telephone transceiver (a4: under front passenger's seat)
• Tv tuner (a4: left side of trunk)
• Voice control microphone
• W/ speaker phone
• W/o speaker phone

Radio Wiring Diagram, MMI 2 Premium (2 of 3) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 2 Premium (2 of 3) for Audi A4 2009:

• Antenna amplifier 2 (a4: right rear of roof)
• Antenna amplifier 3 (a4 sedan: left side of trunk) (a4 avant: left side of cargo area)
• Computer data lines system
• Fuse 7.5a
• Fuse carrier 3
• G50 (a4: left side of luggage compt)
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G62 (a4: right "c" pillar)
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Navigation system w/ cd drive control module (a4: left side of trunk)
• Nca
• Radio
• Radio, telephone navigation system antenna (w/ roof antenna)
• Satellite radio
• W/ speaker phone

Radio Wiring Diagram, MMI 2 Premium (3 of 3) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 2 Premium (3 of 3) for Audi A4 2009:

• Cd changer
• Computer data lines system
• External audio source connection (w/ mmi high)
• Fuse 5a
• Fuse carrier 2
• G687 (a4: left side of center tunnel)
• Hot at all times
• Left front bass speaker
• Left front mid-bass speaker
• Left front treble speaker
• Left rear midrange speaker
• Most data bus circuit
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Right front bass speaker
• Right front midrange speaker
• Right front treble speaker
• Right rear midrange speaker
• Subwoofer
• W/ mmi high

Radio Wiring Diagram, MMI 2 Standard (1 of 3) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 2 Standard (1 of 3) for Audi A4 2009:

• 18 pin connector
• Computer data lines system
• Digital sound system control module (a4 avant: left rear of cargo area) (a4 sedan: left rear of trunk)
• External audio source connection (7a3/7a6)
• Front information display control head control module (w/o rear view camera)
• Fuse 30a
• Fuse 7.5a
• Fuse carrier 3
• G50 (left side of luggage compt)
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Microphone unit (a4: in front roof module)
• Most data bus circuit
• Nca
• Rear view camera system control module
• T18a
• T20c
• T54a
• Telephone microphone
• Telephone transceiver (a4: under front passenger's seat)
• Tv tuner (a4: left side of trunk)
• Voice control microphone
• W/ speaker phone
• W/o speaker phone

Radio Wiring Diagram, MMI 2 Standard (2 of 3) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 2 Standard (2 of 3) for Audi A4 2009:

• Antenna amplifier 2
• Antenna amplifier 3
• Computer data lines system
• Fuse 7.5a
• Fuse carrier
• G50 (left side of luggage compt)
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G62 (a4: right "c" pillar)
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Navigation system w/ cd drive control module (a4: left side of trunk)
• Nca
• Radio
• Radio, telephone navigation system antenna (w/ roof antenna)
• Satellite radio
• W/ speaker phone

Radio Wiring Diagram, MMI 2 Standard (3 of 3) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 2 Standard (3 of 3) for Audi A4 2009:

• Cd changer
• Center mid/high range speaker
• Computer data lines system
• External audio source connection (w/ mmi high)
• Fuse 5a
• Fuse carrier 2
• G687 (left side of center tunnel)
• Hot at all times
• Left front mid-bass speaker
• Left front treble speaker
• Left rear mid/low range speaker
• Left rear treble speaker
• Most data bus circuit
• Nca
• Passenger's side fuse panel (under right side of dash)
• Right front mid-bass speaker
• Right front treble speaker
• Right rear mid/low range speaker
• Right rear treble speaker
• Subwoofer
• W/ mmi high

Radio Wiring Diagram, MMI 3 Basic (1 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 3 Basic (1 of 2) for Audi A4 2009:

• 18-pin connector
• Antenna amplifier 3 (a4 sedan: left side of trunk) (a4 avant: left side of cargo area)
• Comfort system central control module (a4: right side of trunk)
• Computer data lines system
• Fuse 30a
• Fuse 7.5a
• Fuse carrier
• G50 (a4: left side of luggage compt)
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G62 (a4: right "c" pillar)
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Nca
• Radio
• Right front mid-bass speaker
• Right front treble speaker
• Right rear mid/ low range speaker
• Right rear treble speaker
• T10ag
• T12w
• T18a
• T1i
• T1l
• T20c
• T2dn
• T2do
• T8ag
• Tv tuner (if equipped) (a4: left side of trunk)

Radio Wiring Diagram, MMI 3 Basic (2 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 3 Basic (2 of 2) for Audi A4 2009:

• Antenna amplifier 2 (a4: right rear of roof)
• Cd/dvd changer
• Computer data lines system
• Digital radio antenna
• Fuse 5a
• Fuse carrier 2
• G687 (a4: left side of center tunnel)
• Hot at all times
• Information electronics control module 1
• Left front mid-bass speaker
• Left front treble speaker
• Left rear mid/ low range speaker
• Left rear treble speaker
• Most data bus circuit
• Navigation system antenna
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Radio, telephone navigation system antenna
• Satellite antenna
• T1ac
• T1ae
• T1af
• T1ah
• T1ai
• T1n
• T1p
• T1w
• Telephone antenna
• Telephone base plate
• W/ speaker phone

Radio Wiring Diagram, MMI 3 Premium (1 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 3 Premium (1 of 2) for Audi A4 2009:

• (a4 avant & sedan: left side of luggage compt) g50
• Antenna amplifier 2 (a4: right rear of roof)
• Antenna amplifier 3 (a4 sedan: left side of trunk) (a4 avant: left side of cargo area)
• Cd/dvd changer
• Comfort system central control module (a4: right side of trunk)
• Computer data lines system
• Digital radio antenna
• Fuse 30a
• Fuse 5a
• Fuse 7.5a
• Fuse carrier
• Fuse carrier 2
• G50 (a4 avant & sedan: left side of luggage compt)
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G62 (a4: right "c" pillar)
• G687 (a4: left side of center tunnel)
• Hot at all times
• Information electronics control module 1
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Navigation system antenna
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Radio
• Radio, telephone navigation system antenna
• Satellite antenna
• T10ag
• T1ac
• T1ae
• T1ah
• T1ai
• T1i
• T1l
• T1n
• T1p
• T1w
• T20c
• T2dg
• T2dn
• T2do
• Telephone antenna
• Telephone base plate
• Tv tuner (if equipped) (a4: left side of trunk)
• W/ speaker phone

Radio Wiring Diagram, MMI 3 Premium (2 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 3 Premium (2 of 2) for Audi A4 2009:

• (a4 sedan: left rear of trunk)
• (a4: left side of luggage compt) g50
• Center mid/ high range speaker
• Computer data lines system
• Digital sound system control module (a4 avant: left rear of cargo area)
• Left front bass speaker
• Left front mid-bass speaker
• Left front treble speaker
• Left rear mid/ low range speaker
• Left rear midrange speaker
• Left rear treble speaker
• Microphone unit (a4: in front roof module)
• Most data bus circuit
• Nca
• Right front bass speaker
• Right front midrange speaker
• Right front treble speaker
• Right rear mid/ low range speaker
• Right rear midrange speaker
• Right rear treble speaker
• Subwoofer
• T18b
• T2dk
• T32h

Radio Wiring Diagram, MMI 3 Standard (1 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 3 Standard (1 of 2) for Audi A4 2009:

• 18-pin connector
• Antenna amplifier 3 (a4 sedan: left side of trunk) (a4 avant: left side of cargo area)
• Comfort system central control module (a4: right side of trunk)
• Computer data lines system
• Fuse 30a
• Fuse 7.5a
• Fuse carrier
• G50 (a4: left side of luggage compt)
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G62 (a4: right "c" pillar)
• Hot at all times
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Most data bus circuit
• Nca
• Radio
• Right front mid-bass speaker
• Right front treble speaker
• Right rear mid/ low range speaker
• Right rear treble speaker
• T10ag
• T12w
• T18a
• T1i
• T1l
• T20c
• T2dg
• T2dn
• T2do
• T8ag
• Tv tuner (if equipped) (a4: left side of trunk)

Radio Wiring Diagram, MMI 3 Standard (2 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, MMI 3 Standard (2 of 2) for Audi A4 2009:

• Antenna amplifier 2 (a4: right rear of roof)
• Cd/dvd changer
• Computer data lines system
• Digital radio antenna
• Fuse 5a
• Fuse carrier 2
• G687 (a4: left side of center tunnel)
• Hot at all times
• Information electronics control module 1
• Left front mid-bass speaker
• Left front treble speaker
• Left rear mid/ low range speaker
• Left rear treble speaker
• Most data bus circuit
• Navigation system antenna
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Radio, telephone navigation system antenna
• Satellite antenna
• T1ac
• T1ae
• T1af
• T1ah
• T1ai
• T1n
• T1p
• T1w
• Telephone antenna
• Telephone base plate
• W/ speaker phone

Radio Wiring Diagram, Premium Infotainment (1 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, Premium Infotainment (1 of 2) for Audi A4 2009:

• 18 pin connector
• 7a3/uf0
• 7d3/uf7
• Antenna amplifier
• Computer data lines system
• External audio source connection (7a3/uf0)
• External audio source connection (7d3/uf7)
• Fuse 20a
• Fuse 5a
• Fuse carrier
• G61 (a4 sedan: left "c" pillar) (a4 avant: behind left quarterpanel)
• G654 (a4: top of right "d" pillar)
• G687 (a4: left side of center tunnel)
• G688 (a4: right side of center tunnel)
• Hot at all times
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Radio
• Radio, telephone navigation system antenna (w/ roof antenna)
• T12a
• T12s
• T16l
• T18a
• T8k
• Telephone amplifier (w/ telephone amplifier)
• Telephone baseplate (w/ preparation & speaker phone)
• Telephone transceiver (a4: under front passenger's seat)
• W/ preperation & speaker phone
• W/ speaker phone
• W/ telephone amplifier
• W/o speaker phone

Radio Wiring Diagram, Premium Infotainment (2 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, Premium Infotainment (2 of 2) for Audi A4 2009:

• Center mid/high range speaker
• Computer data lines system
• Digital sound system control module
• Front information display control head (w/ radio concert) (center of dash)
• Fuse 30a
• Fuse carrier 3
• G50 (a4: left side of luggage compt)
• Hot at all times
• Inside microphone
• Left front bass speaker
• Left front mid-bass speaker
• Left front treble speaker
• Left rear mid/low range speaker
• Left rear midrange speaker
• Left rear treble speaker
• Luggage compartment relay/fuse carrier (right side of luggage compt)
• Microphone unit
• Pnk
• Radio
• Red
• Right front bass speaker
• Right front midrange speaker
• Right front treble speaker
• Right rear mid/low range speaker
• Right rear midrange speaker
• Right rear treble speaker
• Subwoofer
• T10v
• T18b
• T32h
• Telephone microphone

Radio Wiring Diagram, Standard Infotainment (1 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, Standard Infotainment (1 of 2) for Audi A4 2009:

• 18 pin connector
• 7a3/uf0
• 7d3/uf7
• Antenna amplifier
• Computer data lines system
• External audio source connection (7a3/uf0)
• External audio source connection (7d3/uf7)
• Fuse 20a
• Fuse 5a
• Fuse carrier 2
• G61 (on left "c" pillar)
• G654 (a4: top of right "d" pillar)
• G687 (a4: left side of center tunnel)
• G688 (a4: right side of center tunnel)
• Hot at all times
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Radio
• Radio,telephone navigation system antenna (w/ roof antenna)
• T12a
• T12s
• T16l
• T18a
• T8k
• Telephone amplifier (w/ telephone amplifier)
• Telephone baseplate (w/ preparation & speaker phone)
• Telephone transceiver (a4: under front passenger's seat)
• W/ preparation & speaker phone
• W/ speaker phone
• W/ telephone amplifier
• W/o speaker phone

Radio Wiring Diagram, Standard Infotainment (2 of 2) for Audi A4 2009

List of elements for Radio Wiring Diagram, Standard Infotainment (2 of 2) for Audi A4 2009:

• Center mid/high range speaker
• Computer data lines system
• Digital sound system control module (a4 avant: left rear of cargo area (a4 sedan: left rear of trunk)
• Front information display control head control module (center of dash)
• Fuse 30a
• Fuse carrier 3
• G50 (a4: left side of luggage compt)
• Hot at all times
• Left front mid-bass speaker
• Left front treble speaker
• Left rear mid/low range speaker
• Left rear treble speaker
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Pnk
• Radio
• Red
• Right front mid-bass speaker
• Right front treble speaker
• Right rear mid/low range speaker
• Right rear treble speaker
• Subwoofer
• T10v

SHIFT INTERLOCK

Shift Interlock Wiring Diagram for Audi A4 2009

List of elements for Shift Interlock Wiring Diagram for Audi A4 2009:

• (a4: in mechatronic unit) (s4:on rear of transmission) transmission control module (tcm)
• (not used)
• (on shifter unit) shift lock solenoid
• 10a
• 2.0l
• 3.2l
• Access/start authorization button
• Brake light switch
• Climatronic control module
• Comfort system central control module (right side of trunk)
• Computer data lines system
• Direct shift gearbox (dsg) mechatronic
• Engine control module (ecm) (left side of engine compt plenum chamber)
• Fuse 5a
• Fuse carrier 1
• Fuse panel sc
• G687 (left side of center tunnel)
• G688 (right side of center tunnel)
• Power distribution system
• Prnds
• Selector lever sensor system control module (on shifter unit)
• T12u
• T16r
• T20e
• T32b
• T32d
• T94
• Transmission control module (tcm)
• Vehicle electrical system control module (a4: under left side of dash) (s4:behind driver's storage compat)
• W/ 0b5 direct shift
• W/o 0b5 direct shift

STARTING/CHARGING

Charging Wiring Diagram for Audi A4 2009

List of elements for Charging Wiring Diagram for Audi A4 2009:

• Battery
• Battery interrupt igniter
• Battery jump start terminal (a4: middle of engine compt plenum chamber)
• Battery monitoring control module (a4: middle of luggage compt, on battery)
• Data bus on board diagnostic interface (a4: behind center of dash)
• Fuse panel sa (a4: on battery, in luggage compt)
• G624 (a4 avant & sedan: middle of luggage compt, near battery)
• Generator & voltage regulator
• Nca
• Starter

Starting Wiring Diagram for Audi A4 2009

List of elements for Starting Wiring Diagram for Audi A4 2009:

• (s4 multitronic: on rear of transmission) (a4: in mechatronic unit) transmission control module (tcm)
• 10a
• 12a
• 2.0l
• 3.2l
• A/t
• Battery
• Battery interrupt igniter
• Battery jump start terminal d (a4: middle of engine compt plenum chamber)
• Battery monitoring control module (a4: middle of luggage compt, on battery)
• Charging circuit
• Clutch position sensor (m/t)
• Comfort system central control module (s4: below driver's seat) (a4: right side of trunk)
• Computer data lines system
• Control
• Direct shift
• Driver's side fuse panel (behind left end of dash)
• E-box relay/ fuse carrier (a4: in plenum chamber electronics box)
• Electro mechanical parking brake control module (a4: right side of trunk)
• Engine control module (ecm) (a4: left side of engine compt plenum chamber)
• Engine controls system
• Fuse 110a
• Fuse 5a
• Fuse carrier
• Fuse panel a (a4: on battery, in luggage compt)
• G624 (a4 avant & sedan: middle of luggage compt, near battery)
• G639 (a4 avant & sedan: behind left kick panel)
• G688 (a4 avant & sedan: right side of center tunnel)
• Gearbox (dsg)
• Mechatronic
• Module (tcm)
• Nca
• Power distribution
• Prnds
• Red
• Selector lever sensor system control module (a4: on shifter unit)
• Shift interlock system
• Sockets relay (a4: luggage compt relay/fuse carrier)
• Starter
• Starter relay (a4: on e-box relay/fuse carrier)
• Starter relay 2 (a4: on e-box relay/fuse carrier)
• System
• T16r
• T30a
• T32b
• T32d
• T94
• Transmission
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)
• W/ 6 speed
• W/ cvt
• W/ direct shift gearbox
• W/o direct shift gearbox

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram (1 of 3) for Audi A4 2009

List of elements for Supplemental Restraints Wiring Diagram (1 of 3) for Audi A4 2009:

• (avant & sedan: base of right "c" pillar) g730
• (avant & sedan: left side of luggage compt) g50
• 12a
• Air bag control module (a4: below center console)
• Air bag spiral spring/ return spring (w/ slip ring) (a4: in steering column)
• Battery interrupt igniter
• Computer data lines system
• Control module in steering wheel
• Discontinued
• Driver's air bag front crash sensor
• Driver's air bag igniter
• Driver's air bag igniter 2
• Driver's side air bag crash sensor (s4: at left "b" pillar)
• Driver's side rear air bag crash sensor
• Front passenger seat occupied sensor
• Front passenger's air bag disabled indicator lamp
• Front passenger's front air bag crash sensor
• Front passenger's side air bag crash sensor
• Front passenger's side rear air bag crash sensor (s4: at right "b" pillar)
• Fuse 5a
• Fuse carrier
• G475
• Hot at all times
• Main fuse panel sa
• Nca
• Phased in modification
• Power distribution system
• Rear passenger's side air bag igniter (driver side)
• Rear passenger's side air bag igniter (front passenger side)
• Red
• Relay/fuse carrier luggage compartment sf
• Solid state

Supplemental Restraints Wiring Diagram (2 of 3) for Audi A4 2009

List of elements for Supplemental Restraints Wiring Diagram (2 of 3) for Audi A4 2009:

• Air bag malfunction indicator lamp (mil)
• Computer data lines system
• Data bus on board diagnostic interface (a4: behind center of dash)
• Discontinued phased in modification
• Driver's seat belt tensioner & driver's belt force limiter
• Driver's side air bag igniter (a4: outer side of driver's seat back)
• Force limiter
• Front passenger's safety belt switch & seat occupied recognition safety belt force sensor
• Front passenger's seat belt tensioner & front passenger's belt force limiter
• Front passenger's side air bag igniter (a4: outer side of front passenger's seat back)
• Fuse 5a
• Fuse carrier 2
• Fuse panel sd
• G475
• G638 (avant & sedan: behind right kick panel)
• G639 (avant & sedan: (behind left kick panel)
• G687 (avant & sedan: left side of center tunnel)
• Hot at all times
• Igniter
• Instrument cluster
• Instrument cluster control module
• Nca
• Passenger's side can separating plug
• Phased in modification
• Red
• Seat occupied recognition control module
• Seat occupied recognition pressure sensor
• Solid state
• T20d
• T2ai
• T2ca
• T2cd
• T2ce
• T32f

Supplemental Restraints Wiring Diagram (3 of 3) for Audi A4 2009

List of elements for Supplemental Restraints Wiring Diagram (3 of 3) for Audi A4 2009:

• (a4: under driver front seat) driver's seat position sensor
• (a4: under passenger front seat) passenger's seat position sensor
• (avant & sedan: left side of center tunnel) g687
• (if equipped) front passenger's air bag-off key switch
• Air bag control module (a4: below center console)
• Center rear seat belt tentioner igniter
• Driver's head curtain air bag igniter
• Driver's safety belt switch
• Front passenger's air bag igniter 1 & 2 (a4: in steering wheel)
• Front passenger's head curtain air bag igniter
• G475
• Igniter
• Left rear seat belt tentioner igniter
• Nca
• Red
• Right rear seat belt tensioner igniter
• Solid state
• T2bh
• T2cl

TRANSMISSION

A/T Wiring Diagram, 6 Speed A/T for Audi A4 2009

List of elements for A/T Wiring Diagram, 6 Speed A/T for Audi A4 2009:

• 10a
• 12a
• Access/start authorization button (w/ start/stop button)
• Comfort system central control module (a4: right side of trunk) (s4: below driver's seat)
• Computer data lines system
• Driver's side fuse panel (a4: behind left end of dash)
• E-box relay/fuse carrier (a4: in plenum chamber electronics box)
• Engine controls system
• Fuse 15a
• Fuse 5a
• Fuse 5a (2.0l)
• Fuse carrier
• G12 (left rear of engine compt)
• G688 (a4 avant & sedan: right side of center tunnel)
• Hot at all times
• Prnds
• Selector lever sensor system control module (a4: on shifter unit)
• T32b
• T32d
• Transmission control module (tcm) (a4: in mechatronic unit) (s4: on rear of transmission)
• Transmission park selector switch & shift lock solenoid
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)

A/T Wiring Diagram, with CVT for Audi A4 2009

List of elements for A/T Wiring Diagram, with CVT for Audi A4 2009:

• (left rear of engine compt) g12
• 10a
• 12a
• Access/start authorization button (w/ start/stop button)
• Comfort system central control module (right side of trunk)
• Computer data lines system
• Driver's side fuse panel (behind left end of dash)
• E-box relay/fuse carrier (in plenum chamber electronics box)
• Engine controls system
• Fuse 15a
• Fuse 5a
• Fuse carrier
• G688 (avant & sedan: right side of center tunnel)
• Hot at all times
• Prnds
• Selector lever sensor system control module (on shifter unit)
• T32b
• T32d
• Transmission control module (tcm) (in mechatronic unit)
• Transmission park selector switch & shift lock solenoid
• Vehicle electrical system control module (under left side of dash)

A/T Wiring Diagram, with Direct Shift (1 of 2) for Audi A4 2009

List of elements for A/T Wiring Diagram, with Direct Shift (1 of 2) for Audi A4 2009:

• (left rear of engine compt) g12
• 10a
• 12a
• 2.0l
• 3.2l
• Access/start authorization button (w/ start/ stop button)
• Automatic transmission hydraulic pressure sensor 1
• Automatic transmission hydraulic pressure sensor 2
• Comfort system central control module (s4: below driver's seat) (a4: right side of trunk)
• Computer data lines system
• Direct shift gearbox (dsg) mechatronic
• Driver's side fuse panel (a4: behind left end of dash)
• E-box relay/fuse carrier (a4: in plenum chamber electronics box)
• Engine control module (ecm) (a4: left side of engine compt plenum chamber) (s4: in e-box, in plenum chamber
• Fuse 15a
• Fuse 5a
• Fuse 5a (2.0l)
• Fuse carrier
• G688 (a4 avant & sedan: right side of center tunnel)
• Gear position distance sensor 1
• Gear position distance sensor 2
• Gear position distance sensor 3
• Gear position distance sensor 4
• Nca
• Selector lever sensor system control module
• T14h
• T14i
• T16r
• T32b
• T32d
• T8al
• T94
• Temperature sensor (in control module)
• Transmission control module (tcm)
• Transmission park selector switch & shift lock solenoid
• Vehicle electrical system control module (s4: behind driver's storage compt) (a4: under left side of dash)

A/T Wiring Diagram, with Direct Shift (2 of 2) for Audi A4 2009

List of elements for A/T Wiring Diagram, with Direct Shift (2 of 2) for Audi A4 2009:

• Clutch oil temperature sensor
• Drive position sensor
• Main pressure valve
• Nca
• Oil cooling valve
• Sub-transmission 1 valve 1
• Sub-transmission 1 valve 2
• Sub-transmission 1 valve 3
• Sub-transmission 1 valve 4
• Sub-transmission 2 valve 1
• Sub-transmission 2 valve 2
• Sub-transmission 2 valve 3
• Sub-transmission 2 valve 4
• Transmission assembly
• Transmission input speed (rpm) sensor 1
• Transmission input speed (rpm) sensor 2
• Transmission input speed (rpm) sensor 3

AWD Wiring Diagram for Audi A4 2009

List of elements for AWD Wiring Diagram for Audi A4 2009:

• (a4 avant & sedan: behind kick panel)
• Abs control module (at left side of engine compt)
• Active steering control module (w/ dynamic steering & gearbox quattro sport)
• All wheel drive clutch valve
• All wheel drive clutch valve 2
• All wheel drive control module
• All wheel drive pump
• Computer data lines system
• Esp sensor unit
• Esp sensor unit 2 (w/ dynamic steering & gearbox quattro sport)
• Fuse 35a
• Fuse carrier 2
• G51 (right side of luggage compt)
• G639
• G639 (a4 avant & sedan: behind kick panel)
• Hot at all times
• Luggage compt relay/fuse carrier (a4: right side of luggage compt)
• Oil pressure/ temperature sensor
• Oil pressure/ temperature sensor 2
• Power distribution system
• Red

TRUNK, TAILGATE, FUEL DOOR

Trunk & Fuel Door Release Wiring Diagram for Audi A4 2009

List of elements for Trunk & Fuel Door Release Wiring Diagram for Audi A4 2009:

• (a4 avant & sedan: behind left kick panel) g639
• (a4 avant & sedan: right side of luggage compt) g51
• 10a
• 11a
• Comfort system control module (a4: right side of trunk) (s4: below driver's seat)
• Computer data lines system
• Driver's door control module (a4: in driver's front door) (s4: integrated in driver's door window regulator motor)
• Driver's side fuse panel (a4: behind left end of dash)
• Fuel tank lid unlock motor
• Fuse 15a
• Fuse 20a
• Fuse 30a
• Fuse carrier
• G51 (a4 avant & sedan: right side of luggage compt)
• G654 (a4: top of right "d" pillar)
• Ground distribution system
• Hot at all times
• Interior lights system
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Power distribution system
• Rear lid closing assist motor/rear lid opening assist unlock stop switch/rear lid closing assist lock stop switch
• Rear lid control module
• Rear lid control module 2
• Rear lid lock button
• Rear lid lock cylinder unlock button
• Rear lid remote unlock switch
• Red
• T17o
• T17p
• T20f
• T32c
• T32d
• T32e
• T32j
• Trunk lid alarm switch/rear lid central locking system motor

WARNING SYSTEMS

Brake Wear Sensor Wiring Diagram for Audi A4 2009

List of elements for Brake Wear Sensor Wiring Diagram for Audi A4 2009:

• Computer data lines system
• Driver's side fuse panel (a4: behind left end of dash)
• Fuse 20a
• Fuse carrier
• G639 (a4: behind left kick panel)
• Hot at all times
• Instrument cluster control module
• Left front brake pad wear sensor
• T16b
• T17l
• T32b
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)

Tire Pressure Monitoring Wiring Diagram for Audi A4 2009

List of elements for Tire Pressure Monitoring Wiring Diagram for Audi A4 2009:

• Computer data lines system
• Fuse 5a
• Fuse carrier 2
• G638 (a4: behind right kick panel)
• Hot at all times
• Left front tire pressure monitoring sensor
• Left rear tire pressure monitoring sensor
• Luggage compartment relay/ fuse carrier (a4: right side of luggage compt)
• Right front tire pressure monitoring sensor
• Right rear tire pressure monitoring sensor
• Tire pressure monitoring control module (a4: behind right side of dash)

WIPER/WASHER

Jet Heater Wiring Diagram for Audi A4 2009

List of elements for Jet Heater Wiring Diagram for Audi A4 2009:

• 11a
• Driver's side fuse panel (a4: behind left end of dash)
• Fuse 5a
• Fuse carrier 1
• G639 (a4: behind left kick panel)
• Left washer nozzle heater
• Right washer nozzle heater

Wiper/Washer Wiring Diagram for Audi A4 2009

List of elements for Wiper/Washer Wiring Diagram for Audi A4 2009:

• 12a
• Avant
• Computer data lines system
• Driver's side fuse panel (a4: behind left end of dash)
• Fuse 15a
• Fuse 30a
• Fuse 35a
• Fuse 5a
• Fuse carrier
• Fuse carrier 1
• Fuse carrier 3
• G639 (a4: behind left kick panel)
• G654 (a4: top of right "d" pillar)
• G687 (a4: left side of center tunnel)
• Headlamp washer pump (if equipped)
• Hot at all times
• Instrument cluster control module
• Luggage compartment relay/fuse carrier (a4: right side of luggage compt)
• Nca
• Passenger's side fuse panel (a4: behind right end of dash)
• Rain/light recognition sensor
• Rear window wiper motor (avant)
• Steering column electronics system control module (a4: on steering column, behind steering wheel)
• T16b
• T17l
• T17m
• T17n
• T32b
• Vehicle electrical system control module (a4: under left side of dash) (s4: behind driver's storage compt)
• Windshield washer fluid level sensor
• Windshield washer pump
• Windshield wiper/washer switch
• Wiper control module (a4: left rear of engine compt, in plenum chamber)