a6 basic akn sch

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Audi A6 Current Flow Diagram No. 1 / 2

ws = whitesw = blackro = redbr = browngn = greenbl = bluegr = greyli = purplege = yellowor = orangers = pink

Earth connections

3 - Earth strap, engine-body

12 - Earth point, in engine compartment, left

13 - Earth point, in engine compartment, right

43 - Earth point, lower part of right A-pillar

44 - Earth point, lower part of left A-pillar

81 - Earth connection -1-, in dash panel wiring harness

85 -

Earth connection -1-, in engine compartment wiring harness

86 - Earth connection -1-, in rear wiring harness


176 - Earth connection, in right headlight wiring harness

179 - Earth connection, in left headlight wiring harness

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Ignition/starter switch, X contact relief relay D - Ignition/starter switchJ59 - X contact relief relayJ217 - Automatic gearbox control unitJ429 - Central locking control unitR - RadioT8f - 8-pin connector, black, radio connector IIIT15v -

15-pin connector, orange, connector point, A pillar, right

A2 -

Positive (+) connection (15), in dash panel wiring harness

A21 - Connection (86s), in dash panel wiring harness

A32 -


A52 -

Positive (+) connection -2- (30), in dash panel wiring harness

* - Models with manual gearbox** - Models with automatic gearbox 01V

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Battery, starter, alternator, starter inhibitor relay A - BatteryB - StarterC - AlternatorC1 - Voltage regulatorF125 - Multi-function switchJ31 - Automatic intermittent wash/wipe relayJ207 - Starter inhibitor relayT2 - 2-pin connector, grey, in engine compartment, rightT9 - 9-pin connector, brown, at starter inhibitor relayT10o -

10-pin connector, brown, connector point, electronics box, plenum chamber

T10p -

10-pin connector, black, connector point, electronics box, plenum chamber

T15r -

15-pin connector, blue, connector point, A pillar, right

1 - Earth strap, battery-body




A17 - Connection (61), in dash panel wiring harness

A41 -



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Lighting switch, left steering column switch, front and rear fog light switch E1 - Lighting switchE2 - Turn signal switchE4 - Headlight dipper/flasher switchE19 - Parking light switchE23 - Front and rear fog light switchK13 - Rear fog light warning lampK17 - Fog light warning lampL9 - Lighting switch light bulbL40 - Front and rear fog light switch illumination bulb


A43 - Connection (57L), in dash panel wiring harness

A44 - Connection (57R), in dash panel wiring harness


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Switches and instruments-lighting control, headlight range control E20 - Switches and instruments, lighting controlE102 - Headlight range control adjusterL54 - Headlight range control adjuster light bulbT10b - 10-pin connector, red, connector point, A pillar, leftT10an - 10-pin connector, on headlight, leftT10ao - 10-pin connector, on headlight, rightT10az - 10-pin connector, red, connector point, A pillar,

rightV48 - Headlight range control motor, leftV49 - Headlight range control motor, right





269 -

Earth connection (sender earth) -1-, in dash panel wiring harness

* - Both possible

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Hazard warning light switch C22 - Interference suppression choke for airbagE3 - Hazard warning light switchJ220 - Motronic control unitJ234 - Airbag control unitJ248 - Diesel direct injection system control unitJ429 - Central locking control unitT1d -

Single connector, brown, connector point, A pillar, right

T3au -

3-pin connector, red, connector point, electronics box, plenum chamber

T10av -

10-pin connector, yellow, connector point, A pillar, right

T15v -




A5 -

Positive (+) connection (right turn signal), in dash panel wiring harness

A6 -

Positive (+) connection (left turn signal), in dash panel wiring harness

* - Models with petrol engines** - Models with diesel engines

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Windscreen washer/wiper system E22 - Intermittent wiper switchE38 - Intermittent wiper controlF77 - Windscreen washer fluid warning contactJ31 - Automatic intermittent wash/wipe relayK106 - Washer fluid low warning lampT6ac - 6-pin connector, brown, on intermittent wiper

controlT8i - 8-pin connector, at wiper switchT10a - 10-pin connector, pink, connector point, A pillar, leftT10b - 10-pin connector, red, connector point, A pillar, leftT10e -

10-pin connector, purple, connector point, A pillar, left

V - Windscreen wiper motorV5 - Windscreen washer pump




261 -

Earth connection, in heated washer jet wiring harness

269 -


A96 - Connection (53c), in dash panel wiring harness

* - Both possible** - Models with driver information system

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Fuse box, heated washer jets, front fog lights L22 - Fog light bulb, leftL23 - Fog light bulb, rightS1 - Fuse in fuse boxS2 - Fuse in fuse boxS224 - Fuse in fuse boxS229 - Fuse in fuse boxS226 - Fuse in fuse boxS227 - Fuse in fuse boxT2an - 2-pin connector, washer jet, leftT2ao - 2-pin connector, washer jet, rightT10b - 10-pin connector, red, connector point, A pillar, leftT10e -


T10az - 10-pin connector, red, connector point, A pillar, right

Z20 - Heater element, left washer jetZ21 - Heater element, right washer jet



261 -


A34 - Connection (75x), in dash panel wiring harness

L4 - Connection (75 al), in air conditioner wiring harness

* - Models without air conditioner** - Models with air conditioner

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Fuse box, number plate light, glove box light E87 - Control and display unit for air conditionerJ429 - Central locking control unitS3 - Fuse in fuse boxS4 - Fuse in fuse boxS5 - Fuse in fuse boxS6 - Fuse in fuse boxS7 - Fuse in fuse boxS231 - Fuse in fuse boxT2ap - 2-pin connector, black, behind dash panel, rightT8l - 8-pin connector, behind dash panel, rightT10f -

10-pin connector, brown, connector point, A pillar, left

T10t -

10-pin connector, orange, right connector point A-pillar

W6 - Glove box lightX - Number plate light



A20 - Connection (15a), in dash panel wiring harness

A38 -

Positive (+) connection -2- (15a), in dash panel wiring harness

A53 -


* - Models with manual gearbox** - Models with automatic gearbox 01V*** - Models with air conditioner

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Fuse box, heated exterior mirror, brake light switch F - Brake light switchF47 -

Cruise control system brake pedal switch (diesel direct injection system)

J217 - Automatic gearbox control unitJ220 - Motronic control unitJ412 - Operating electronics control unit, telephoneS8 - Fuse in fuse boxS9 - Fuse in fuse boxS10 - Fuse in fuse boxS12 - Fuse in fuse boxS13 - Fuse in fuse boxT10h -

10-pin connector, black, connector point, A pillar, left

T10u -

10-pin connector, black, connector point, A pillar, right

T15r -

15-pin connector, blue, connector point, A pillar, right

Z4 - Heated exterior mirror, driver's sideZ5 - Heated exterior mirror, front passenger's side


A114 -

Connection (headlight range control), in dash panel wiring harness

B131 - Connection (54), in interior wiring harness

J9 - Connection -1- (15a), in ABS wiring harness

* - Models with automatic gearbox 01V** - Models with automatic gearbox 01N

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Fuse box, horn relay E97 - Memory operating unitH - Horn plateJ4 - Dual tone horn relayJ429 - Central locking control unitS14 - Fuse in fuse boxS15 - Fuse in fuse boxS238 - Fuse in fuse boxS239 - Fuse in fuse boxS240 - Fuse in fuse boxT5d -

5-pin connector, yellow, behind steering column switch trim

T10t -


T15a - 15-pin connector, black, connector point, left A pillar



A1 -

Positive (+) connection (30a), in dash panel wiring harness

Q11 -

Positive (+) connection (30 a), in electric window/central locking and door contact switch wiring harness

Q12 -

Positive (+) connection (30 a), in electric window/central locking and door contact switch wiring harness

* - Both possible** - Models with 8-cylinder engine*** - Models with 4-cylinder and 6-cylinder engine

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Fuse box, front and rear cigarette lighters, horn H2 - High tone hornH7 - Low tone hornL28 - Cigarette lighter light bulbS233 - Fuse in fuse boxS236 - Fuse in fuse boxS241 - Fuse in fuse boxS242 - Fuse in fuse boxS243 - Fuse in fuse boxT10b - 10-pin connector, red, connector point, A pillar, leftT10az - 10-pin connector, red, connector point, A pillar,

rightU1 - Cigarette lighterU9 - Cigarette lighter, rear




C13 -

Positive (+) connection, in dual tone horn wiring harness

E112 -

Connection (horn-87 h), in dash panel wiring harness

* - Does not apply to models with 8-cylinder motor** - Models with 8-cylinder engine

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Fuse box, right headlight M3 - Side light bulb, rightM7 - Turn signal bulb, front rightM19 - Side turn signal bulb, rightM31 - Dipped beam bulb, rightM32 - Main beam bulb, rightS18 - Fuse in fuse boxS20 - Fuse in fuse boxS22 - Fuse in fuse boxT10ao - 10-pin connector, on headlight, rightT10ay -

10-pin connector, pink, connector point, A pillar, right


C19 -

Connection -1- (turn signal, right), in headlight wiring harness

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Fuse box, left headlight M1 - Side light bulb, leftM5 - Turn signal bulb, front leftM18 - Side turn signal bulb, leftM29 - Dipped beam bulb, leftM30 - Main beam bulb, leftS19 - Fuse in fuse boxS21 - Fuse in fuse boxS223 - Fuse in fuse boxT10a - 10-pin connector, pink, connector point, A pillar, leftT10an - 10-pin connector, on headlight, left


C20 -

Connection (turn signal, left), in headlight wiring harness

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Left tail light, reversing light, high level brake light bulb F4 - Reversing light switchF125 - Multi-function switchL46 - Rear fog light bulb, leftM4 - Tail light bulb, leftM6 - Turn signal bulb, rear leftM9 - Brake light bulb, leftM16 - Reversing light bulb, leftM25 - High level brake light bulbN110 - Selector lever lock solenoidT2am - 2-pin connector, black, on selector lever consoleT3ar - 3-pin connector, blue, connector point, A pillar, rightT3au -


T6a - 6-pin connector, blue, connector point, A pillar, leftT10f -


T10o -




A87 -

Connection (RF (reversing light)), in dash panel wiring harness


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Right tail light, fuel pump, fuel gauge senders, heated rear window E15 - Heated rear window switchE87 - Control and display unit for air conditionerG - Fuel gauge senderG6 - Fuel pump (pre-supply pump)G169 - Fuel gauge sender 2G237 - Fuel gauge sender 3J17 - Fuel pump relayM2 - Tail light bulb, rightM8 - Turn signal bulb, rear rightM10 - Brake light bulb, rightM17 - Reversing light bulb, rightS228 - Fuse in fuse boxT6a - 6-pin connector, blue, connector point, A pillar, leftT10f -


Z1 - Heated rear window

75 - Earth point, right rear pillar



269 -


* - Models with front-wheel drive** - Models with four-wheel drive*** - Wiring in fuel tank

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Dash panel insert, warning lamp F9 - Handbrake warning switchJ218 - Combi-processor in dash panel insertJ220 - Motronic control unitK1 - Main beam warning lampK2 - Alternator warning lampK14 - Handbrake warning lampK65 - Left turn signal warning lampK83 -

Fault warning lamp for self-diagnosis/exhaust emissions

K94 - Right turn signal warning lampK132 - Electronic power control fault lampT10n -

10-pin connector, orange, connector point, electronics box, plenum chamber

T10o -


T32 - 32-pin connector, blue, on dash panel insertT32a - 32-pin connector, green, on dash panel insert




* - Both possible

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Dash panel insert, fuel gauge, coolant temperature gauge, rev. counter, speedometer E87 - Control and display unit for air conditionerG1 - Fuel gaugeG3 - Coolant temperature gaugeG5 - Rev. counterG21 - SpeedometerG22 - Speedometer sender (hall sender, on gearbox)G62 - Coolant temperature senderJ218 - Combi-processor in dash panel insertJ429 - Central locking control unitK4 - Side light warning lampK16 - Reserve fuel warning lampT10p -



85 -


A8 -

Positive (+) connection (58d), in dash panel wiring harness (display illumination)

A26 -

Connection (door contact switch/driver's side), in dash panel wiring harness

A27 -

Connection (speed signal), in dash panel wiring harness

A45 -

Connection (engine speed signal), in dash panel wiring harness

A108 -

Connection (speed signal), in dash panel wiring harness

* - Models with air conditioner

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Dash panel insert, analogue clock, brake pad/lining wear warning, radio wave controlled clock G14 - VoltmeterH3 - Buzzer/gongJ104 - ABS with EDL control unitJ218 - Combi-processor in dash panel insertJ489 - Radio wave clock receiverK32 - Brake pad/lining warning lampK47 - ABS warning lampN12 -

Brake pad/lining wear indicator, right (shear element)

N13 - Brake pad/lining wear indicator, left (shear element)T2ak - 2-pin connector, red, on bulkhead, leftT2al - 2-pin connector, red, on bulkhead, rightT4ah - 4-pin connector, black, on dash panel insertT10k -

10-pin connector, orange, connector point, A pillar, left

T10au -

10-pin connector, grey, connector point, A pillar, right

T32 - 32-pin connector, blue, on dash panel insertT32a - 32-pin connector, green, on dash panel insertY - Analogue clockY8 - Radio wave controlled clock


* - Models with radio wave controlled clock** - Models with ABS with EDL/ASR (TCS)*** - Only models with ABS with ESP

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Dash panel insert, oil pressure switch, coolant shortage indicator switch, brake fluid level warning contact E87 - Control and display unit for air conditionerF1 - Oil pressure switchF34 - Brake fluid level warning contactF66 - Coolant shortage indicator switchJ104 - ABS with EDL control unitJ218 - Combi-processor in dash panel insertK3 - Oil pressure warning lampK28 - Coolant temperature/coolant shortage warning

lampT10e -


T10p -



261 -


269 -


316 -

Earth connection (sender earth -2-), in engine wiring harness

A79 -

Connection (hot light switch), in dash panel wiring harness

A120 -

Connection (stationary time), in dash panel wiring harness

* - Sender earth output** - Models with air conditioner

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Dash panel insert, immobilizer reading coil, oil level/oil temperature sender D2 - Immobilizer reading coilG266 - Oil level thermo sender, service intervalJ218 - Combi-processor in dash panel insertJ234 - Airbag control unitJ429 - Central locking control unitK75 - Airbag warning lampK117 - Immobilizer warning lampT10o -


T10t -


T10av -


T15v -


T32a - 32-pin connector, green, on dash panel insert

85 -


A112 -

Connection (bonnet switch), in dash panel wiring harness

A121 - Connection (high bus), in dash panel wiring

harness

A122 - Connection (low bus), in dash panel wiring harness

• - CAN bus (data wire)

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Dash panel insert, diagnosis connection E87 - Control and display unit for air conditionerJ217 - Automatic gearbox control unitJ218 - Combi-processor in dash panel insertJ234 - Airbag control unitJ429 - Central locking control unitK - Diagnosis connectionT10av -


T15r -

15-pin connector, brown, connector point, A pillar, right

T15v -


T16a - 16-pin connector, diagnosis connectionT32a - 32-pin connector, green, on dash panel insert



A76 -

Connection (diagnosis wire K), in dash panel wiring harness

* - Models with automatic gearbox 01V** - Models with automatic gearbox 01N*** - Models with air conditioner# - Both possible

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Basic wiring for radio, connection for switch illumination, shelf illumination J104 - ABS with EDL control unitL120 - Shelf illuminationL121 - Cup holder illuminationS237 - Fuse in fuse boxT2m - 2-pin connector, brown, behind dash panel, centreT8f - 8-pin connector, black, radio connector IIIT10k -

10-pin connector, orange, connector point, A pillar, left

T15t - 15-pin connector, grey, connector point left A-pillarW - Interior light, frontW13 - Front passenger reading lampW19 - Reading lamp, driver's side


A19 -

Connection (58s), in dash panel wiring harness (switch illumination)

A50 -

Positive (+) connection (30a), in dash panel wiring harness

A76 -

Connection (diagnosis wire K), in dash panel wiring harness

* - Only models with ABS** - Only models with ABS and ESP

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Heater, fresh air blower E9 - Fresh air blower switchF38 - Ambient temperature switchJ214 - Thermotronic control unitJ248 - Diesel direct injection system control unitN24 -

Fresh air blower with overheating fuse series resistor

T10c - 10-pin connector, grey, connector point, A pillar, leftT15u -


V2 - Fresh air blower



* - Models with 1.6 l TDI engine** - Models with 2.5 l TDI engine*** - Both possible

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Heater, control motors G112 - Control motor potentiometer, central flapG135 - Control motor potentiometer, defroster flapJ8 - Auxiliary heater relayJ214 - Thermotronic control unitV70 - Central flap control motorV107 - Defroster flap control motorV154 - Fresh/recirculating air flap control motor

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a6 basic akn sch

Documents

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rear wiring harness

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earth strap