All Wiring Diagrams for Audi A4 Quattro 1999

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Audi A4 Quattro 1999

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Audi A4 Quattro 1999:

A/c control head
Back pressure flap motor and sensor
Center outlet temperature sender
Central flap motor and sensor
Floor outlet temperature sender
Footwell/defroster flap motor and sensor
Fresh air intake duct temperature sensor
G202 (left side of dash)
Instrument cluster
Instrument cluster system (w/ auto check)
Interior temperature fan & sensor
Motronic engine control module (left rear corner of eng compt)
Outside air temperature sensor
Sunlight photo sensor
T32
T32a
Temperature regulator flap motor and sensor
Transmission control module

Automatic A/C Wiring Diagram (2 of 2) for Audi A4 Quattro 1999

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List of elements for Automatic A/C Wiring Diagram (2 of 2) for Audi A4 Quattro 1999:

(left side of dash) g202
(lower part of left "a" pillar) g200
A/c clutch relay (on 13-way relay carrier)
A/c compressor clutch
A/c refrigerant high pressure switch
Coolant fan
Coolant fan control relay (on 8-way relay carrier)
Coolant fan control series resistor
Coolant fan control thermal switch
Fresh air blower
Fuse 10a
Fuse 30a
Fuse 40a
Fuse 5a
Fuse panel
G200 (lower part of left "a" pillar)
Hot at all times
Hot in run
Hot w/ load reduction relay energized
Relay carrier (8-way)
Second speed coolant fan control relay (on 8-way relay carrier)

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram, FWD for Audi A4 Quattro 1999

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List of elements for Anti-lock Brakes Wiring Diagram, FWD for Audi A4 Quattro 1999:

13a
8-way relay carrier
Abs control module
Abs return flow pump
Abs return flow pump relay
Abs solenoid valve relay
Abs/edl hydraulic unit (below left side of rear seat)
All times
Anti-slip control switch
Brake- light switch
Combination processor
Diagnostic connector
Fuse 13 10a
Fuse 53 60a
Fuse 7 10a
Fuse panel
G202 (behind left dash)
Hot at
Hot in on or start
Instrument cluster
Left front abs inlet valve
Left front abs outlet valve
Left front abs wheel speed sensor
Left front traction control outlet valve
Left front traction control switch-over valve
Left rear abs inlet valve
Left rear abs outlet valve
Left rear abs wheel speed sensor
Motronic engine control module (in left rear corner of engine compartment)
Navigation system
Red
Right front abs inlet valve
Right front abs outlet valve
Right front abs wheel speed sensor
Right front traction control outlet valve
Right front traction control switch-over valve
Right rear abs inlet valve
Right rear abs outlet valve
Right rear abs wheel speed sensor
T32
T32a
Traction control ind
W/ anti-slip control
W/o anti-slip control

Anti-lock Brakes Wiring Diagram, Quattro for Audi A4 Quattro 1999

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List of elements for Anti-lock Brakes Wiring Diagram, Quattro for Audi A4 Quattro 1999:

13a
8-way relay carrier
Abs control module
Abs return flow pump
Abs return flow pump relay
Abs solenoid valve relay
Abs/edl hydraulic unit (left front of engine compartment)
All times
Brake- light switch
Combination processor
Diagnostic connector
Fuse 13 10a
Fuse 53 50a
Fuse 7 10a
Fuse panel
G202 (behind left dash)
Hot at
Hot in on or start
Instrument cluster
Left front abs inlet valve
Left front abs outlet valve
Left front abs wheel speed sensor
Left front traction control outlet valve
Left front traction control switch-over valve
Left rear abs inlet valve
Left rear abs outlet valve
Left rear abs wheel speed sensor
Motronic engine control module (left rear of engine compartment)
Red
Right front abs inlet valve
Right front abs outlet valve
Right front abs wheel speed sensor
Right front traction control outlet valve
Right front traction control switch-over valve
Right rear abs inlet valve
Right rear abs outlet valve
Right rear abs wheel speed sensor
T32
T32a

ANTI-THEFT

Anti-theft Wiring Diagram (1 of 2) for Audi A4 Quattro 1999

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List of elements for Anti-theft Wiring Diagram (1 of 2) for Audi A4 Quattro 1999:

(behind left side of dash)
(central electric panel, position 4)
(not used)
(on bottom right of luggage compartment)
(sedan)
14a
238a
86s
Antenna
Central locking/ interior light delay/ anti-theft alarm control module
Clutch pedal position switch (m/t)
Door lock switch
Engine control module (left rear corner of engine compt)
Exterior lights system
Fuse 10a
Fuse 15a
Fuse 5a
Fuse relay panel
G202 (behind left side of dash)
G900 (lower left "a" pillar)
Hot at all times
Hot in start and run
Ignition switch
Instrument cluster
Interior lights system
Key switch
Left door warning light
Nca
Not used
Park/ neutral position relay
Power windows system
Radio
Red
Right door warning light
T11
T32
Trans range selector (a/t)
Warning light control module
With remote control

Anti-theft Wiring Diagram (2 of 2) for Audi A4 Quattro 1999

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List of elements for Anti-theft Wiring Diagram (2 of 2) for Audi A4 Quattro 1999:

Alarm horn
G202 (behind left side of dash)
G900 (lower left "a" pillar)
Hood alarm switch
Left front door contact switch
Left front door handle alarm switch
Left rear door contact switch
Left ultra- sound sensor
Passenger's compartment monitoring switch
Right front door contact switch
Right front door handle alarm switch
Right rear door contact switch
Right ultra- sound sensor
Trunk lock alarm switch
Ultrasonic monitor control module (below center of rear seat)

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Computer Data Lines Wiring Diagram for Audi A4 Quattro 1999:

12a
231a
A/c control head
Abs control module
Airbag control module (in center console)
C14
Central locking/ alarm system/ interior light delay control module (on bottom right luggage compartment)
Data link connector
Engine control module (in left rear corner of engine compartment)
Fuse 10a
Fuse 15a
Fuse relay panel (behind left side of dash)
G202 (behind left side of dash)
Hot at all times
Hot in on or start
Instrument cluster
T32
Trans- mission control module (under right front seat and carpet)
Ultrasound interior module (below center of rear seat)

COOLING FAN

Cooling Fan Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Cooling Fan Wiring Diagram for Audi A4 Quattro 1999:

(lower part of left "a" pillar)
A/c control head
A/c refrigerant high pressure switch
Carrier, position 2)
Coolant fan
Coolant fan control relay (on 8-way relay carrier, position 3)
Coolant fan control series resistor
Coolant fan control thermal switch
D16
Fuse 30a
Fuse 40a
Fuse 5a
Fuse assembly (behind left side of dash)
Fuse relay panel (behind left side of dash)
G200
Hot at all times
Hot w/ load reduction relay energized
Second speed coolant fan control relay (on 8-way relay

CRUISE CONTROL

Cruise Control Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Cruise Control Wiring Diagram for Audi A4 Quattro 1999:

Brake- light switch
Cluster
Combination processor
Control module
Cruise control brake pedal switch
Cruise control module
Cruise control switch
Cruise control vacuum pump
Fuse 10a
Fuse panel
G200 (behind left side of dash)
Hot at all times
Instrument
Multi- function transmission range switch
T32
Transmission

DEFOGGERS

Defoggers Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Defoggers Wiring Diagram for Audi A4 Quattro 1999:

226a
Antenna amplifier
Driver's side heated mirror
Fuse 10a
Fuse 30a
Fuse relay panel (behind left side of dash)
G202 (behind left dash)
Hot w/ load reduction relay energized
Passenger's side heated mirror
Rear window defogger heat element
Rear window defogger heat element/ antenna
Rear window defogger switch
W/ window antenna
W/o window antenna

ENGINE PERFORMANCE

1.8L

1.8L, Engine Performance Wiring Diagram (1 of 2) for Audi A4 Quattro 1999

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List of elements for 1.8L, Engine Performance Wiring Diagram (1 of 2) for Audi A4 Quattro 1999:

(left side of engine compt)
(not used)
(on air intake hose) mass air- flow sensor
(on intake manifold, under throttle body) throttle valve control module
Air conditioning system
Bat(30)
Camshaft position sensor (rear left side of eng)
Central electric panel
Data link connector (in rear of center console)
Diagnosis pump (for fuel system)
Engine coolant temperature sensor (right side of eng)
Fuse 20a
Fuse panel
G104
G104 (left side of engine compt)
G132 (on engine block)
G202 (left side of dash)
Hot in on or start
Ignition coils
Instrument cluster
Instrument cluster system
Intake air temperature sensor
Knock sensor 1 (right side of eng)
Knock sensor 2 (left side of eng)
Malfunction ind lamp (mil)
Motronic engine control module (in left rear corner of eng compt)
Nca
Power output stage
Red
Spark plug
T32
T4f
T5c
Trans- missions system
Transmissions system

1.8L, Engine Performance Wiring Diagram (2 of 2) for Audi A4 Quattro 1999

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List of elements for 1.8L, Engine Performance Wiring Diagram (2 of 2) for Audi A4 Quattro 1999:

(left side of dash)
87f
87f/dti
87a
Abs control module
Barometric pressure sensor
Bat(30)
Central electric panel
Data link connector (rear of center console)
Engine speed sensor (rear left side of eng)
Evaporative emission canister purge regulator valve (right side of eng compt)
Fuel injectors
Fuel pump (in fuel tank)
Fuel pump relay
Fuse 10a
Fuse 15a
Fuse 20a
Fuse panel
G104 (left side of engine compt)
G202
Heated oxygen sensor 1 (right side of engine)
Heated oxygen sensor 2 (left side of engine)
Ign(15)
Motronic engine control module (in left rear corner of eng compt)
Nca
Red
Trans- missions system
Wastegate bypass regulator valve

2.8L

2.8L, Engine Performance Wiring Diagram (1 of 2) for Audi A4 Quattro 1999

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List of elements for 2.8L, Engine Performance Wiring Diagram (1 of 2) for Audi A4 Quattro 1999:

(not used)
(on air intake hose) mass air- flow sensor
(on throttle body) throttle valve control module
4wd only
Air conditioning system
Anti-lock brakes system
Bat(30)
Camshaft position sensor 1 (rear left side of eng)
Camshaft position sensor 2 (rear left side of eng)
Central electric panel
Data link connector (in rear of center console)
Diagnosis pump (for fuel system)
Distributor ignition capacitor
Engine coolant temperature sensor (right side of eng)
Fuse 15a
Fuse 20a
Fuse panel
G104 (left side of engine compt)
G202 (left side of dash)
Hot in on or acc
Hot in on or start
Ignition coil 1
Ignition coil 2
Ignition coil 3
Ignition coils
Instrument cluster
Instrument cluster system
Knock sensor 1 (right side of eng)
Knock sensor 2 (left side of eng)
Malfunction ind lamp
Motronic engine control module (in left rear corner of eng compt)
Nca
Power output stage
Red
Solid state
Spark plugs 1 & 6
Spark plugs 2 & 4
Spark plugs 3 & 5
T32
Temperature sensor ii

2.8L, Engine Performance Wiring Diagram (2 of 2) for Audi A4 Quattro 1999

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List of elements for 2.8L, Engine Performance Wiring Diagram (2 of 2) for Audi A4 Quattro 1999:

(left side of dash)
(left side of engine compt)
13-way relay carrier
3-way relay carrier
87f
87f/dti
87a
Abs control module
Air conditioning system
Bat(30)
Camshaft adjusment valve 1
Camshaft adjusment valve 2
Central electric panel
Data link connector (in rear of center console)
Engine speed sensor (rear left side of eng)
Evaporative emission canister purge regulator valve (right side of eng compt)
Fuel injectors
Fuel pump (in fuel tank)
Fuel pump relay
Fuse 15a
Fuse 20a
Fuse 50a
Fuse panel
G104
G202
Heated oxygen sensor 1 (right side of eng)
Heated oxygen sensor 2 (left side of eng)
Hot at all times
Ign(15)
Intake manifold changeover valve
Motronic engine control module (in left rear corner of eng compt)
Nca
Oxygen sensor 1 (behind 3 way catalytic converter (twc))
Oxygen sensor 2 (behind 3 way catalytic converter (twc))
Red
Secondary air injection (air) relay
Secondary air injection pump motor
Secondary air injection solenoid valve

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Back-up Lamps Wiring Diagram for Audi A4 Quattro 1999:

A/t
Back- up light
Back-up light switch
Fuse 231 15a
Fuse panel
G202 (behind left dash)
Hot in on or start
Left taillight assembly
M/t
Multi- function transmission range switch
Right taillight assembly

Exterior Lamps Wiring Diagram, with DRL for Audi A4 Quattro 1999

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List of elements for Exterior Lamps Wiring Diagram, with DRL for Audi A4 Quattro 1999:

13a
223a
22a
239a
Anti-theft system
Brake light switch
Cluster
Combination processor
Emergency flasher switch & relay
Fuse 10a
Fuse 15a
Fuse 5a
Fuse panel (left side of dash)
G202 (behind left dash)
G900 (lower left "a" pillar)
G901 (lower right "a" pillar)
Head
High- mount brake light
Hot at all times
Hot w/ load reduction relay energized
Instrument
Instrument cluster
Interior lights system
Left front park/turn light
Left side turn signal light
Left taillamp assembly
Left turn ind.
License plate lights
Light switch
Off
Park
Red
Right front park/turn light
Right side turn signal light
Right taillamp assembly
Right turn ind.
Signal switch
Stop
T32
Tail
Turn

Exterior Lamps Wiring Diagram, without DRL for Audi A4 Quattro 1999

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List of elements for Exterior Lamps Wiring Diagram, without DRL for Audi A4 Quattro 1999:

13a
223a
22a
239a
Anti-theft system
Brake light switch
Cluster
Emergency flasher switch & relay
Fuse 10a
Fuse 15a
Fuse 5a
Fuse panel (left side of dash)
G202 (behind left dash)
G900 (lower left "a" pillar)
G901 (lower right "a" pillar)
Head
High- mount brake light
Hot at all times
Hot w/ load reduction relay energized
Instrument
Instrument cluster
Instrument cluster system
Interior lights system
Left front park/turn light
Left side turn signal light
Left taillamp assembly
Left turn ind.
License plate lights
Light switch
Off
Park
Park lamp ind
Right front park/turn light
Right side turn signal light
Right taillamp assembly
Right turn ind.
Signal switch
Stop
T32
T32a
Tail
Turn

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 2) for Audi A4 Quattro 1999

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List of elements for Ground Distribution Wiring Diagram (1 of 2) for Audi A4 Quattro 1999:

(1.8l)
Alarm hood switch
Battery
Coolant fan control switch, coolant fan, a/c high pressure switch
Door lock switch, driver's door contact switch, driver's door handle alarm switch
Door warning lights control module, central locking/ alarm system/ interior light delay control module, alarm horn, ultra-sound control module,
G104 (left side of engine compt)
G111 (in battery box)
G132 (on engine block)
G900 (lower left "a" pillar)
G901 (lower right "a" pillar)
Ignition coils
Kick down switch, mass air flow sensor shield, engine speed sensor shields, heated oxygen sensor shields, vehicle speed sensor, engine coolant level switch, mass air flow sensor, power output stage, secondary air injection pump motor, secondary air injection system, motronic engine control module
Kick down switch, vehicle speed sensor, engine coolant level warning switch, knock sensor 1 & 2 shield, engine speed sensor shield
Left headlight, left fog light, left front park/ turn light, left front side turn light, washer fluid level switch
Passenger's door contact switch, passenger's door handle alarm switch
Power window/ sunroof control module, right front window motor left rear window motor, right rear window motor
Radio, amplifier shield
Right front window switch, left front window switch, left front window motor, left rear window switch (console), right rear window switch (console), window lockout switch
Right headlight, low tone horn, high tone horn, right front foglight, right front park/ turn light, right front side turn light
S106
S127
S133
S176
S179
S205
S267
S268
S83
S89
Telephone transceiver, abs hydraulic unit, radio, amplifier, abs control module, left rear woofer, left rear midrange, power sunroof control module

Ground Distribution Wiring Diagram (2 of 2) for Audi A4 Quattro 1999

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List of elements for Ground Distribution Wiring Diagram (2 of 2) for Audi A4 Quattro 1999:

(audi avant)
Driver's side airbag crash sensor, passenger's side airbag crash sensor, airbag control module
G202 (behind left dash)
Headlight washer pump, left seat belt switch, driver's seat switch, fuel level sensor
Left back-up light, left rear turn signal, left taillight, left brakelight
Left front seat temp. sensor, left front seat backrest heater, right front seat temp. sensor, right front seat backrest heater
Right turn signal light, right back-up light, high mount brake light, right taillight, right brakelight, fuel pump, luggage compartment lights
S109
S114
S135
S196
S218
S81
S86
S87
S96
Transmission control module, automatic trans. console lights, multi-function trans. range switch, left seatbelt switch
Trunk alarm switch, trunk light switch, license plate lights
Unlock rear lid motor, rear window wiper motor, trunk lock alarm switch, driver's door handle alarm switch, trunk light switch, rear defogger, high-mounted brake light, front interior light, license plate light
Windshield washer fluid level warning solenoid, instrument cluster, engine coolant temperature sensor
Windshield wiper motor, rear window defogger switch, front fog light switch, rear fog light switch, cigarette lighter, parking brake switch, data link connector, glove compartment light switch, emergency flasher switch, windshield wiper motor, brake fluid level warning switch, left washer nozzle heater, right washer nozzle heater, daytime running lights switch-on relay, driving light relay, load reduction relay
Wiper/washer intermittent relay, right front seat adjuster, left front seat adjuster, transmission range display, fresh air blower control module, a/c control head, anti-slip control switch (w/ asc), left heated door lock control module, cruise control module, cruise connector, left heated mirror, right heated mirror, rear lamp control module, trip computer function select switch, left rear reading light, right rear reading light, left front vanity mirror light, right front vanity mirror light, front map lights, washer/wiper relay, headlight washer relay, instrument cluster, windshield wiper intermittent regulator, horn switch, windshield washer pump, mirror adjustment switch, automatic day/night mirror, clutch pedal position switch

HEADLIGHTS

Headlamps & Fog Lamps Wiring Diagram, with DRL for Audi A4 Quattro 1999

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List of elements for Headlamps & Fog Lamps Wiring Diagram, with DRL for Audi A4 Quattro 1999:

(behind left side of dash)
(behind left side of dash) g202
(lower left "a" pillar)
(lower right "a" pillar)
10a
13-way relay carrier
75x
Acc
Driving light relay
Exterior lights
Fog light
Fog light relay
Fog light switch
Ftp
Fuse
Fuse 10a
Fuse 15a
Fuse panel
G202
G202 (behind left side of dash)
G900
G901
Head
Head- light
Hi beam ind.
Hot at all times
Ignition switch
Instrument cluster
Interior lights system
Left head/ foglight assembly
Left rear fog light
Left taillight assembly
Light switch
Load reduction relay
Micro central electric panel
Off
Park
Rear fog light switch
Right head/ foglight assembly
Right taillight assembly (not used)
Run
Start
T32

Headlamps & Fog Lamps Wiring Diagram, without DRL for Audi A4 Quattro 1999

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List of elements for Headlamps & Fog Lamps Wiring Diagram, without DRL for Audi A4 Quattro 1999:

(behind left side of dash)
(lower left a pillar)
(lower right a pillar)
10a
13-way relay center
18a
19a
20a
21a
36a
Acc
All times
Fog light
Fog light relay
Fog light switch
Ftp
Fuse
Fuse 10a
Fuse 15a
Fuse panel
G202
G900
G901
Head
Head- light
Hi beam ind.
Hot at
Hot at all times
Ignition switch
Instrument cluster
Interior lights system
Left head/ foglight assembly
Left rear fog light
Left taillight assembly
Light switch
Load reduction relay
Off
Park
Rear fog light switch
Rear lamp control module
Right head/ foglight assembly
Right taillight assembly (not used)
Run
Start
T32
W/ auto check system
W/o auto check system

HORN

Horn Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Horn Wiring Diagram for Audi A4 Quattro 1999:

(lower right "a" pillar)
240a
30ah
87h
Acc
Dual horn relay
Fuse 40 25a
Fuse panel
G202 (behind left dash)
G901
High tone horn
Horn button
Hot at all times
Ignition switch
Low tone horn
Micro central electric panel
Off
Start

INSTRUMENT CLUSTER

Auto Check System Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Auto Check System Wiring Diagram for Audi A4 Quattro 1999:

(auto trans only)
(behind left side of dash)
13a
A/c control head
Auto check system
Brake- light switch
Engine control module (left rear corner of engine compt)
Fuse 13 10a
Fuse 5 5a
Fuse panel
G202 (behind left side of dash)
G900 (lower left "a" pillar)
Hot at all times
Hot in start or run
Radio
Rear light control module (on 13-fold relay carrier, positions 4 and 5)
Red
Transmission control module (under right front seat and carpet)
Trip computer function select switch
Trip computer reset button
Washer fluid level warning switch

Instrument Cluster Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Instrument Cluster Wiring Diagram for Audi A4 Quattro 1999:

(behind left side of dash)
15a
18a
86s
A/c control head
A11
Abs module (below left side of rear seat)
Abs warning
Air bag mil
Airbag ctrl module (in center console)
Analog clock
Anti- theft warn
B13
Brake fluid level warning switch
Brake pad wear ind
Brake system warn
C10
C13
Central locking/ alarm/ light delay module (bottom right of luggage compartment)
Computer data lines
Coolant level warning switch (bottom of reservoir)
Coolant level/ temp warn
Cruise control module (behind right side of dash)
Driver's seat belt switch
Ect gauge
Ect sensor
Engine control module (left rear corner of engine compt)
Fuel gauge
Fuel level sensor
Fuel reserve warn
Fuse 15 10a
Fuse 18 10a
Fuse relay panel
G104 (left side of engine compt)
G202 (behind left side of dash)
G900 (lower left "a" pillar)
Gen warn
Generator
Glow plug ind
Headlights system
High beam
Hot at all times
Hot with high beams on
Ignition switch
Ignition switch acc
Instrument cluster
Interior lights system
Key switch
Left front brake pad wear sensor
Left turn
Lock
Mil indicator
Off
Oil press warn
Oil pressure switch
Oil temp gauge
Oil temp sensor
Panel dimmer
Park brake ind
Park brake switch
Park light
Pwr accel warn
Radio
Rear fog
Red
Right front brake pad wear sensor
Right high beam headlight
Right turn
Run
Seat belt ind
Speedometer
Start
T32
T32/
T32/10
T32/11
T32/15
T32/19
T32/20
T32/21
T32/22
T32/23
T32/25
T32/26
T32/27
T32/28
T32/3
T32/30
T32/31
T32/5
T32/6
T32/7
T32/8
T32/9
T32a
T32a/
T32a/10
T32a/11
T32a/12
T32a/21
T32a/30
T32a/6
T32a/7
Tachometer
Traction cont
Trunk light switch
Turn signal switch
Vehicle speed sensor
Volts gauge
Warning buzzer
Washer fluid level
Wiper/washer intermittent relay (central electric panel, position 5)

INTERIOR LIGHTS

Courtesy Lamp Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Courtesy Lamp Wiring Diagram for Audi A4 Quattro 1999:

14a
223a
A12
Central locking/ alarm system/ interior light delay control module (bottom right of luggage compartment)
Door warning lights control module
Driver side heated mirror
Driver's side door contact switch
Driver's side door warning light
Front interior light assembly
Fuse 14 10a
Fuse 3 5a
Fuse 38 15a
Fuse 5 5a
Fuse panel
Fuse panel (behind left side of dash)
G202 (behind left dash)
G900 (lower left "a" pillar)
Glove compt light
Glove compt light switch
Head
Hot at all times
Hot in run or start
Instrument cluster system
Left foot- well light
Left luggage compartment light
Left make-up mirror light
Left make-up mirror switch
Left rear door contact switch
Left rear door warning light
Light switch
Mirror adjustment switch
Nca
Off
Park
Passenger's front door contact switch
Passenger's side door warning light
Rear reading/ courtesy light
Right foot- well light
Right luggage compartment light
Right make-up mirror light
Right make-up mirror switch
Right rear door contact switch
Right rear door warning light

Instrument Illumination Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Instrument Illumination Wiring Diagram for Audi A4 Quattro 1999:

A/c control head
Anti- slip control switch
Cigarette lighter light
Combination processor
Dim input
Driver heated seat adjuster
Foglight control module
Front fog- light switch
G202 (behind left dash)
Head
Hot at all times
Instrument cluster
Instrument panel light dimmer switch
Light switch
Off
Park
Passenger heated seat adjuster
Radio
Rear fog- light switch
T32
W/ asc

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 2) for Audi A4 Quattro 1999

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List of elements for Power Distribution Wiring Diagram (1 of 2) for Audi A4 Quattro 1999:

(not used)
1.8l
13-way relay carrier
15/30a
17a
2.8l
28a
29a
30a
31a
32a
33a
34a
37a
44a
50b
86s
87f
Abs hydraulic unit
Acc
Air bag control module, transmission control module, power window/ sunroof control module, window motors, instrument cluster
Anti-slip control switch
Back-up light swirch, mass air flow sensor, automatic day/night interior light
Battery
Central locking/ alarm system/ interior light delay control module, door lock switch
Cigarette lighter
Daytime running lights switch-on relay
Engine control module
Evap canister purge regulator valve, camshaft adjustment valves, secondary air injection solenoid valve, oxygen sensors secondary air injection relay, fuel system diagnostic pump, wastegate bypass regulator valve, intake manifold change-over valve
Fuel injectors
Fuel pump
Fuel pump relay
Fuse 10a
Fuse 15a
Fuse 20a
Fuse 30a
Fuse 50a
Fuse 5a
Fuse panel
G202 (behind left side of dash)
Generator
Generator, instrument cluster
Headlight dimmer/ flasher switch
Ignition coils, engine control module, distributor ignition capacitor
Ignition switch
Instrument cluster, radio, central locking/alarm system/interior light delay control module
Instrument cluster, radio, rear lamp control module, a/c control head, interior temp sensor fan
Interior lights system
Key-in ignition switch
Left heated door lock control module
Light switch
Micro central electric
Mirror adjustment switch, seat heat regulating switches
Off
Park/neutral position relay
Power sunroof control module
Radio, amplifier, telephone transceiver
Red
Run
S2/87f
S3/15
S3/s
Seat heater regulating switches
Secondary injection relay
Shift lock solenoid, ecm, multi- function transmission range switch, transmission range selector level display
Start
Starter
Telephone transceiver
To fuse (diagram 2 of 2)
To load reduction relay (diagram 2 of 2)
Transmission control module
Washer/wiper intermittent relay

Power Distribution Wiring Diagram (2 of 2) for Audi A4 Quattro 1999

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List of elements for Power Distribution Wiring Diagram (2 of 2) for Audi A4 Quattro 1999:

(except 4x4) (4x4)
12a
13/15
13a
14a
15a
24a
25a
26a
38a
39a
40a
75x
8-way relay carrier
A/c control head
Abs hydraulic unit
Brake light switch
Central locking/ alarm system/ interior lights delay control module, door lock switch, ultra sound sensor control module door warning lamps
Circuit breaker 37 30a
Circuit breaker 43 30a
Data link connector
Dual horn relay
Emergency flasher switch
Fresh air blower, a/c clutch relay, a/c refrigerant switch
From fuel pump relay (diagram 1 of 2)
From ignition switch (diagram 1 of 2)
Front interior light, trunk lid alarm switch
Fuse 10a
Fuse 15a
Fuse 25a
Fuse 30a
Fuse 40a
Fuse 5a
Fuse 60a 50a
Fuse panel
G202 (behind left side of dash)
Instrument cluster, selector lever light relay
Load reduction relay
Micro central electric
Power seat switch
Rear fog light switch, front interior light, central locking/alarm system/interior light delay control module, reading lights make-up mirror lights
Rear window defogger switch
Red
S1/30ah
S1/31
S1/75
Second speed coolant fan control relay, coolant fan control relay
Temperature/ transmission range switch, heated mirror
Washer nozzle heaters
Washer/ wiper intermittent relay
Window motors
Windshield wiper intermittent switch

POWER DOOR LOCKS

Heated Door Locks Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Heated Door Locks Wiring Diagram for Audi A4 Quattro 1999:

17a
All times
Fuse 17 10a
Fuse panel (left side of dash)
G202 (behind left side of dash)
Hot at
Left door lock heater
Left heated door lock control module
Left heated door lock switch

POWER MIRRORS

Electrochromic Mirror Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Electrochromic Mirror Wiring Diagram for Audi A4 Quattro 1999:

231a
A/t
Automatic day/night mirror
Brake switch
Driver's side mirror
Exterior lights system
Fuse 31 15a
Fuse relay panel
G202 (behind left side of dash)
Hot in run or start
Interior lights system
M/t
Multifunction transmission range switch
Passenger's side mirror

Power Mirror Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Power Mirror Wiring Diagram for Audi A4 Quattro 1999:

Automatic day/night mirrors
Defogger system
Driver's side mirror
Fuse 5 10a
Fuse relay panel
G202 (behind left side of dash)
Hot in run or start
Mirror adjustment switch
Mirror position
Mirror select
Passenger's side mirror

POWER SEATS

Heated Seats Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Heated Seats Wiring Diagram for Audi A4 Quattro 1999:

244a
All times
Driver backrest heat element
Driver seat heat element
Driver seat heat regulating switch
Driver seat temper- ature sensor
Fuse 244 30a
Fuse 5 5a
Fuse panel
G202 (behind left side of dash)
Hot at
Hot in run or start
Interior lights system
Nca
Passenger backrest heat element
Passenger seat heat element
Passenger seat heat regulating switch
Passenger seat temper- ature sensor
Solid state

Left Power Seat Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Left Power Seat Wiring Diagram for Audi A4 Quattro 1999:

Back- rest
Circuit breaker 44 30a
Driver seat backrest adjusting motor
Driver seat fore/aft adjusting motor
Driver seat front height adjusting motor
Driver seat rear height adjusting motor
Driver seat switch
Fore/ aft
Front height
Fuse panel
G202 (behind left side of dash)
Hot at all times
Rear height

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Power Top/Sunroof Wiring Diagram for Audi A4 Quattro 1999:

C15
Central locking/ alarm system/ interior light delay module (on bottom right of luggage compartment)
Fuse 20a
Fuse relay panel (behind left side of dash)
G900 (lower left "a" pillar)
Hot at all times
Nca
Power sunroof control module
Solid state
Sunroof motor
Sunroof raise/ lower switch
Sunroof regulator
T6an
T6i

POWER WINDOWS

Power Window System Wiring Diagram (A4 Wiring Diagram 1 Of 2) for Audi A4 Quattro 1999

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List of elements for Power Window System Wiring Diagram (A4 Wiring Diagram 1 Of 2) for Audi A4 Quattro 1999:

A11
All times
C15
Central locking/ alarm system/ interior light delay control module (bottom right of luggage compt)
Fuse assembly (behind left side of dash)
Fuse/ relay panel (behind left side of dash)
G900 (lower left a-pillar)
Hot at
Hot in on or acc
Left front window switch
Left window motor
Power sunroof control module
Power window fuse 37 30a
Window motor

Power Window System Wiring Diagram (A4 Wiring Diagram 2 Of 2) for Audi A4 Quattro 1999

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List of elements for Power Window System Wiring Diagram (A4 Wiring Diagram 2 Of 2) for Audi A4 Quattro 1999:

All times
Fuse/ relay panel (behind left side of dash)
G900 (lower left a-pillar)
Hot at
Left rear door window motor
Left rear door window switch (center console)
Left rear door window switch (door)
Power window circuit breaker 43 30a
Right front door window switch (left door)
Right front door window switch (right door)
Right rear door window motor
Right rear door window switch (center console)
Right rear door window switch (door)
Right window motor
Window lockout switch
Window m motor
Window motor

RADIO

AM/FM Stereo Wiring Diagram, Bose for Audi A4 Quattro 1999

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List of elements for AM/FM Stereo Wiring Diagram, Bose for Audi A4 Quattro 1999:

(not used) t10i
1995 vftc c
Antenna
Antenna amplifier
Anti-theft system
Auto check system (w/ auto check system)
Combination processor
Defogger system
Fuse relay panel (behind left side of dash)
G202 (behind left dash)
G900 (lower left "a" pillar)
Hot at all times
Hot in run or accy
Instrument cluster
Left front woofer & midrange speaker
Left rear midrange speaker
Left rear speaker
Left rear woofer
Nca
Radio
Right front speaker
Right front woofer & midrange speaker
Right rear midrange speaker
Right rear woofer
Right rear woofer/ amplifier
T10af
T1l
T20b
T8a
T8b
Telephone transceiver

with CD Changer Wiring Diagram for Audi A4 Quattro 1999

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List of elements for with CD Changer Wiring Diagram for Audi A4 Quattro 1999:

(not used) t10i
1995 vftc c
Antenna
Antenna amplifier
Anti-theft system
Auto check system (w/ auto check system)
Cd changer unit
Combination processor
Defogger system
Fuse relay panel (behind left side of dash)
G202 (behind left dash)
G900 (lower left "a" pillar)
Hot at all times
Hot in run or accy
Instrument cluster
Left front midrange speaker
Left front woofer
Left rear midrange & woofer speakers
Nca
Radio
Red
Right front midrange speaker
Right front woofer
Right rear woofer & midrange speakers
T10af
T1l
T20b
T8a
T8b
Telephone transceiver

SHIFT INTERLOCK

Shift Interlock Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Shift Interlock Wiring Diagram for Audi A4 Quattro 1999:

13a
231a
Anti-theft system
Brake- light switch
Cruise control system
Engine control module (in left rear corner of engine compartment)
Fuse 13 10a
Fuse 31 15a
Fuse relay panel (behind left side of dash)
G202 (behind left side of dash)
Hot at all times
Hot in start and run
Multi-function transmission range switch
Shift lock solenoid
Transmission control module (under carpet, forward of passenger's seat)

STARTING/CHARGING

Charging Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Charging Wiring Diagram for Audi A4 Quattro 1999:

1.8l
2.8l
Acc
Battery
G111 (in battery box)
Gen ind.
Generator
Hot at all times
Ignition switch
Instrument cluster
Off
Red
Start
Starter
T32

Starting Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Starting Wiring Diagram for Audi A4 Quattro 1999:

13-way relay carrier
15a
A/t
Acc
Battery
Central locking/ alarm system/ interior light delay control module
Clutch pedal position switch
G111 (in battery box)
G202 (behind left dash)
Ignition switch
Key-in ign
M/t
Motronic engine control module
Multi- function trans- mission range switch
Off
P/n
Park/ neutral position relay
Red
Start
Starter

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram for Audi A4 Quattro 1999

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List of elements for Supplemental Restraints Wiring Diagram for Audi A4 Quattro 1999:

(in rear of center console) data link connector
(w/ head airbag) driver's head airbag igniter
Acc
Airbag control module (in center console)
Airbag malfunction indicator lamp
Airbag spiral spring
Center rear seat belt tensioner igniter (avant only)
Combination processor
Driver's (side) airbag crash sensor
Driver's (side) airbag igniter
Driver's airbag igniter
Driver's seat belt tensioner igniter
Emergency flasher switch
G202 (behind left side of dash)
Hot at all times
Ignition switch
Instrument cluster
Left rear seat belt tensioner igniter
Lock
Nca
Nca nca
Passenger's (side) airbag crash sensor
Passenger's (side) airbag igniter
Passenger's airbag igniter 1
Passenger's head airbag igniter (w/ head airbag)
Passenger's seat belt tensioner igniter
Red
Right rear seat belt tensioner igniter
Run
Start
T10an
T16
T32

TRANSMISSION

A/T Wiring Diagram for Audi A4 Quattro 1999

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List of elements for A/T Wiring Diagram for Audi A4 Quattro 1999:

(left side of dash)
11-12
231a
38-39
49-50
50a
50z
56-84
Anti-lock brake system
Anti-lock brakes system (w/ asc)
Brakelight switch (on brake pedal support bracket)
Central electric panel (left side of dash)
Central locking/ alarm system/ interior light delay control module (bottom right of luggage compt)
Cruise control system
Data link connector (dlc) (rear of center console)
Engine control module (ecm) (left rear corner of eng compt)
Exterior lights system
Fuse 10a
Fuse 15a
Fuse panel (left side of dash)
G102 (left side of eng compt)
G202
G202 (left side of dash)
Hot at all times
Hot in on or start
Ignition switch terminal 50 (hot in start)
Instrument cluster system
Interior lights system
Kickdown switch (on throttle housing)
Multifunction transmission range (tr) switch
Nca
Red
Shift lock solenoid
Solenoid valves
Starter interlock alarm system relay
Starter terminal 50
Steering wheel
Transmission control module (tcm) (fwd of pass seat)
Transmission fluid temperature sensor
Transmission input speed sensor
Transmission range (tr) selector lever display
Transmission vehicle speed sensor
Valve body