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AUDI A4 2002 – Audi A4 (2,4 litre fuel injection engine, 121 kW, Motronic (5 valve), 6 cylinders), engine codes ARJ . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A4 2002 - Battery - starter - alternator



Wiring Diagram  AUDI A4 2002 - Battery - starter - alternator https://portal-diagnostov.com/license.html
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ABattery
BStarter
CAlternator
C1Voltage regulator
DIgnition/starter switch
F4Reversing light switch
S5Fuse in fuse box/relay plate
S7Fuse in fuse box
S13Fuse in fuse box
S231Fuse in fuse box
S232Fuse in fuse box
T1kSingle connector, black, in engine compartment, right
T2ab2-pin connector, grey, in engine compartment, right
T2at2-pin connector, black, in engine compartment, right
T1010-pin connector, brown, connector point, electronics box, plenum chamber
   11 Earth point, in battery box
   A2 Positive (+) connection (15), in dash panel wiring harness
   A20 Connection (15a), in dash panel wiring harness
   A32 Positive (+) connection (30), in dash panel wiring harness
   A70 Connection (15a, fuse 231), in dash panel wiring harness
   A86 Connection (50a), in dash panel wiring harness
*Applicable up to model year 2000
**Applicable from model year 2001

Wiring Diagram AUDI A4 2002 - Motronic control unit - fuel pump relay - injectors



Wiring Diagram  AUDI A4 2002 - Motronic control unit - fuel pump relay - injectors https://portal-diagnostov.com/license.html
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J17Fuel pump relay
J220Motronic control unit
N30Injector, cylinder 1
N31Injector, cylinder 2
N32Injector, cylinder 3
N33Injector, cylinder 4
N80Activated charcoal filter system solenoid valve 1
N83Injector, cylinder 5
N84Injector, cylinder 6
N112Secondary air inlet valve
N156Intake manifold change-over valve
N205Inlet camshaft timing adjustment valve -1-
N208Inlet camshaft timing adjustment valve -2-
T10m10-pin connector, black, connector point, electronics box, plenum chamber
T10ar10-pin connector, orange, connector point, electronics box, plenum chamber
   D22 Connection (via fuse 234), in front right wiring harness
   D95 Connection (injectors), in engine compartment wiring harness
   D102 Connection -2-, in engine compartment wiring harness
*Applies to engine codes AQD and ARJ only
**Applicable up to model year 2000
***Applicable from model year 2001

Wiring Diagram AUDI A4 2002 - Motronic control unit - coolant temperature senders - knock sensors - cruise control system switch



Wiring Diagram  AUDI A4 2002 - Motronic control unit - coolant temperature senders - knock sensors - cruise control system switch https://portal-diagnostov.com/license.html
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E45Cruise control system switch
G2Coolant temperature sender
G61Knock sensor I
G62Coolant temperature sender
G66Knock sensor II
J220Motronic control unit
T3n3-pin connector, blue, in engine compartment, left
T3o3-pin connector, blue, in engine compartment, left
T3bg3-pin connector, brown, in engine compartment, left
T3bi3-pin connector, brown, in engine compartment, left
T6y6-pin connector, black, next to steering column
T1515-pin connector, white, connector point, electronics box, plenum chamber
T15m15-pin connector, red, connector point, electronics box, plenum chamber
   104 Earth connection, in front right wiring harness (sensor earth)
   220 Earth connection (sender earth), in engine wiring harness
   A121 Connection (high bus), in dash panel wiring harness
   A122 Connection (low bus), in dash panel wiring harness
*Only models with cruise control system
**Applicable from model year 2001
***Applicable up to model year 2000
Data bus wire (CAN bus)

Wiring Diagram AUDI A4 2002 - Motronic control unit - Hall senders - accelerator pedal position senders - intake air temperature sender



Wiring Diagram  AUDI A4 2002 - Motronic control unit - Hall senders - accelerator pedal position senders - intake air temperature sender https://portal-diagnostov.com/license.html
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G28Engine speed sender
G40Hall sender 1
G42Intake air temperature sender
G79Accelerator pedal position sender
G163Hall sender 2
G185Accelerator pedal position sender -2-
J220Motronic control unit
T3m3-pin connector, grey, in engine compartment, left
T6as6-pin connector, black, in engine compartment, rear
T1010-pin connector, brown, connector point, electronics box, plenum chamber
T10m10-pin connector, black, connector point, electronics box, plenum chamber
T1515-pin connector, white, connector point, electronics box, plenum chamber
   220 Earth connection (sender earth), in engine wiring harness
   A27 Connection (speed signal), in dash panel wiring harness
   A45 Connection (engine speed signal), in dash panel wiring harness
   D141 Connection (5V), in engine prewiring wiring harness
*Applicable up to model year 2000
**Applicable from model year 2001 (phased-in modification)
***As of model year 2001 no longer fitted (phased-in modification)

Wiring Diagram AUDI A4 2002 - Motronic control unit - brake light switch - clutch pedal switch - air mass meter - secondary air pump



Wiring Diagram  AUDI A4 2002 - Motronic control unit - brake light switch - clutch pedal switch - air mass meter - secondary air pump https://portal-diagnostov.com/license.html
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FBrake light switch
F36Clutch pedal switch
G70Air mass meter
J220Motronic control unit
J299Secondary air pump relay
S130Secondary air pump fuse
T3aa3-pin connector, white, connector point, electronics box, plenum chamber
T10ar10-pin connector, orange, connector point, electronics box, plenum chamber
T1515-pin connector, white, connector point, electronics box, plenum chamber
V101Secondary air pump motor
   12 Earth point, in engine compartment, left
   A18 Connection (54), in dash panel wiring harness
   A40 Positive (+) connection -1- (30), in dash panel wiring harness
   A104 Positive (+) connection -2- (15), in dash panel wiring harness
   A106 Connection -2- (86s), in dash panel wiring harness
   D101 Connection -1-, in engine compartment wiring harness
*Applies to engine codes AQD and ARJ only
**Only models with manual gearbox
***As of model year 2001 no longer fitted (phased-in modification)

Wiring Diagram AUDI A4 2002 - Motronic control unit - lambda probes - throttle valve control unit



Wiring Diagram  AUDI A4 2002 - Motronic control unit - lambda probes - throttle valve control unit https://portal-diagnostov.com/license.html
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E87Control and display unit for air conditioner
G39Lambda probe
G108Lambda probe 2
J220Motronic control unit
J234Airbag control unit
J338Throttle valve control unit
T3au3-pin connector, red, connector point, electronics box, plenum chamber
T4y4-pin connector, black, in engine compartment, right
T4z4-pin connector, black, in engine compartment, left
T15m15-pin connector, red, connector point, electronics box, plenum chamber
Z19Lambda probe heater
Z28Lambda probe 2 heater
   83 Earth connection -1-, in front right wiring harness
   200 Earth connection (screening), in engine compartment wiring harness
   A100 Connection -2- (87), in dash panel wiring harness
   A125 Connection (crash signal), in dash panel wiring harness
*Only models with air conditioner

Wiring Diagram AUDI A4 2002 - Motronic control unit - ignition system



Wiring Diagram  AUDI A4 2002 - Motronic control unit - ignition system https://portal-diagnostov.com/license.html
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C6Coil condenser
J220Motronic control unit
NIgnition coil 1
N122Final output stage 1
N128Ignition coil 2
N158Ignition coil 3
PSpark plug connector
QSpark plugs
S228Fuse in fuse box
S229Fuse in fuse box
S234Fuse in fuse box
T5d5-pin connector, near ignition coil
T10ar10-pin connector, orange, connector point, electronics box, plenum chamber
T15m15-pin connector, red, connector point, electronics box, plenum chamber
   12 Earth point, in engine compartment, left
   83 Earth connection -1-, in front right wiring harness
   A151 Connection -4- (87), in dash panel wiring harness
   A152 Connection -5- (87), in dash panel wiring harness
   D23 Connection (via fuse 229), in front right wiring harness
*Only models with front-wheel drive
**Applicable up to model year 1999
***Applicable from model year 2000 (phased-in modification)

Wiring Diagram AUDI A4 2002 - Dash panel insert - coolant shortage indicator switch - fuel gauge sender - fuel pump - diagnostic connector



Wiring Diagram  AUDI A4 2002 - Dash panel insert - coolant shortage indicator switch - fuel gauge sender - fuel pump - diagnostic connector https://portal-diagnostov.com/license.html
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F66Coolant shortage indicator switch
GFuel gauge sender
G6Fuel pump
J218Combi-processor in dash panel insert
T6e6-pin connector, blue, left connector point, A pillar
T10a10-pin connector, brown, left connector point, A pillar
T10m10-pin connector, black, connector point, electronics box, plenum chamber
T10ao10-pin connector, white, left connector point, A pillar
T1616-pin connector, diagnostic connector
T3232-pin connector, blue, on dash panel insert
T32a32-pin connector, green, on dash panel insert
   86 Earth connection -1-, in rear wiring harness
   139 Earth connection (sender earth), in Motronic wiring harness
   269 Earth connection (sender earth) -1-, in dash panel wiring harness
   A76 Connection (diagnosis wire K), in dash panel wiring harness
*Output for signal earth

Wiring Diagram AUDI A4 2002 - Dash panel insert - warning lamps - speedometer sender - oil pressure switch - oil level/oil temperature sender



Wiring Diagram  AUDI A4 2002 - Dash panel insert - warning lamps - speedometer sender - oil pressure switch - oil level/oil temperature sender https://portal-diagnostov.com/license.html
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F1Oil pressure switch
G22Speedometer sender
G266Oil level/oil temperature sender
J218Combi-processor in dash panel insert
K2Alternator warning lamp
K132Electronic power control fault lamp
T1010-pin connector, brown, connector point, electronics box, plenum chamber
T10m10-pin connector, black, connector point, electronics box, plenum chamber
T3232-pin connector, blue, on dash panel insert
T32a32-pin connector, green, on dash panel insert
   83 Earth connection -1-, in front right wiring harness
   A17 Connection (61), in dash panel wiring harness
   A74 Connection (15a, fuse 5), in dash panel wiring harness
*Applicable up to model year 2000
**Applicable from model year 2001