AUTOMOTIVE ELECTRICIANS PORTAL - FZCO

AUDI A6 2003 – Body electrical . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A6 2003 - Earth connections



Wiring Diagram  AUDI A6 2003 - 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
   213 Earth connection -4-, in dash panel wiring harness
*Models without trailer coupling
**Models with trailer coupling

Wiring Diagram AUDI A6 2003 - Ignition/starter switch - X contact relief relay - starter inhibitor and reversing light relay



DIgnition/starter switch
J59X contact relief relay
J217Automatic gearbox control unit
J226Starter inhibitor and reversing light relay
J402Operating electronics control unit, navigation
J429Central locking control unit
T8f8-pin connector, black, radio connector III
T1717-pin connector, orange, connector point, A pillar, right
T17r17-pin connector, white, behind dash panel, centre
   A2 Positive (+) connection (15), in dash panel wiring harness
   A21 Connection (86s), in dash panel wiring harness
   A32 Positive (+) connection (30), in dash panel wiring harness
   A52 Positive (+) connection 2 (30), in dash panel wiring harness
*Models with manual gearbox
**Models with automatic gearbox 01V/01L
***Models with automatic gearbox: multitronic® 01J
#Models with petrol engine

Wiring Diagram AUDI A6 2003 - Battery - starter - alternator - starter inhibitor relay



ABattery
BStarter
CAlternator
C1Voltage regulator
F125Multi-function switch
J31Automatic intermittent wash/wipe relay
J207Starter inhibitor relay
S205Fuse -2- (30)
T1hSingle connector, black, in engine compartment, right
T2cl2-pin connector, black, in engine compartment, right
T99-pin connector, brown, at starter inhibitor relay
T10o10-pin connector, brown, connector point, electronics box, plenum chamber
T10p10-pin connector, black, connector point, electronics box, plenum chamber
T17m17-pin connector, blue, connector point, A pillar, right
   1 Earth strap, battery - body
   81 Earth connection -1-, in dash panel wiring harness
   A17 Connection (61), in dash panel wiring harness
   A41 Positive (+) connection (50), in dash panel wiring harness
*Models with manual gearbox
**Models with automatic gearbox 01V/01L
***Models with automatic gearbox: multitronic® 01J

Wiring Diagram AUDI A6 2003 - Lighting switch - left steering column switch - front and rear fog light switch



E1Lighting switch
E2Turn signal switch
E4Headlight dipper/flasher switch
E19Parking light switch
E23Front and rear fog light switch
K13Rear fog light warning lamp
K17Fog light warning lamp
L9Lighting switch light bulb
L40Front and rear fog light switch illumination bulb
   81 Earth connection -1-, in dash panel wiring harness
   A43 Connection (57L), in dash panel wiring harness
   A44 Connection (57R), in dash panel wiring harness
   A51 Connection (56), in dash panel wiring harness

Wiring Diagram AUDI A6 2003 - Switches and instruments light regulator - headlight range control



E20Switches and instruments light regulator
E102Headlight range control adjuster
L54Headlight range control adjuster light bulb
T10b10-pin connector, red, connector point, A pillar, left
T10an10-pin connector, on headlight, left
T10ao10-pin connector, on headlight, right
T10ay10-pin connector, pink, connector point, A pillar, right
V48Headlight range control motor, left
V49Headlight range control motor, right
   44 Earth point, lower part of left A pillar
   135 Earth connection -2-, in dash panel wiring harness
   176 Earth connection, in right headlight wiring harness
   179 Earth connection, in left headlight wiring harness
   199 Earth connection -3-, in dash panel wiring harness
   269 Earth connection (sender earth) -1-, in dash panel wiring harness
*Both possible

Wiring Diagram AUDI A6 2003 - Hazard warning light switch



E3Hazard warning light switch
J234Airbag control unit
J429Central locking control unit
T10av10-pin connector, yellow, connector point, A pillar, right
T1717-pin connector, orange, connector point, A pillar, right
T17a17-pin connector, brown, connector point, A pillar, right
T17k17-pin connector, red, connector point, electronics box, plenum chamber
   135 Earth connection -2-, in dash panel wiring harness
   199 Earth connection -3-, in dash panel wiring harness
   213 Earth connection -4-, in dash panel wiring harness
   A5 Positive (+) connection (right turn signal), in dash panel wiring harness
   A6 Positive (+) connection (left turn signal), in dash panel wiring harness
   A125 Connection (crash signal), in dash panel wiring harness

Wiring Diagram AUDI A6 2003 - Windscreen washer/wiper system



E22Intermittent wiper switch
E38Intermittent wiper control
E87Control and display unit for air conditioner
F77Windscreen washer fluid warning contact
J31Automatic intermittent wash/wipe relay
T6ac6-pin connector, brown, on intermittent wiper control
T8i8-pin connector, black, at wiper switch
T10a10-pin connector, pink, connector point, A pillar, left
T10b10-pin connector, red, connector point, A pillar, left
T10e10-pin connector, purple, connector point, A pillar, left
VWindscreen wiper motor
V5Windscreen washer pump
   81 Earth connection -1-, in dash panel wiring harness
   135 Earth connection -2-, in dash panel wiring harness
   199 Earth connection -3-, in dash panel wiring harness
   261 Earth connection, in heated washer jet wiring harness
   269 Earth connection (sender earth) -1-, in dash panel wiring harness
   A96 Connection (53c), in dash panel wiring harness
*Both possible
**Models with driver information system

Wiring Diagram AUDI A6 2003 - Fuse box - heated washer jets - front fog lights



L22Fog light bulb, left
L23Fog light bulb, right
S1Fuse in fuse box
S2Fuse in fuse box
S224Fuse 24 in fuse box
S225Fuse 25 in fuse box
S226Fuse 26 in fuse box
S227Fuse 27 in fuse box
T2an2-pin connector, washer jet, left
T2ao2-pin connector, washer jet, right
T10b10-pin connector, red, connector point, A pillar, left
T10e10-pin connector, purple, connector point, A pillar, left
T10ay10-pin connector, pink, connector point, A pillar, right
Z20Heater element, left washer jet
Z21Heater element, right washer jet
Z36Heated steering wheel
   176 Earth connection, in right headlight wiring harness
   179 Earth connection, in left headlight wiring harness
   261 Earth connection, in heated washer jet wiring harness
   A34 Connection (75x), in dash panel wiring harness
   L4 Connection (75 al), in air conditioner wiring harness
*Models with heated steering wheel

Wiring Diagram AUDI A6 2003 - Fuse box - number plate light - glove box light



E26Glove box light switch
E87Control and display unit for air conditioner
J429Central locking control unit
S3Fuse in fuse box
S4Fuse in fuse box
S5Fuse in fuse box
S6Fuse in fuse box
S7Fuse in fuse box
S231Fuse 31 in fuse box
T2ap2-pin connector, black, behind dash panel, right
T8l8-pin connector, behind dash panel, right
T10f10-pin connector, brown, connector point, A pillar, left
T17a17-pin connector, brown, connector point, A pillar, right
W6Glove box light
XNumber plate light
   81 Earth connection -1-, in dash panel wiring harness
   87 Earth connection -2-, in rear wiring harness
   A20 Connection (15a), in dash panel wiring harness
   A38 Positive (+) connection -2- (15a), in dash panel wiring harness
   A53 Positive (+) connection (58), in dash panel wiring harness
*Models with manual gearbox
**Models with automatic gearbox 01V/01L
***Models with automatic gearbox: multitronic® 01J

Wiring Diagram AUDI A6 2003 - Fuse box - heated exterior mirror - brake light switch



FBrake light switch
F47Cruise control system brake pedal switch (diesel direct injection system)
J104ABS with EDL control unit
J220Motronic control unit
J248Diesel direct injection system control unit
J431Headlight range control, control unit
J526Telephone/telematics control unit
S8Fuse in fuse box
S9Fuse in fuse box
S10Fuse in fuse box
S11Fuse in fuse box
S12Fuse in fuse box
S13Fuse in fuse box
T3as3-pin connector, blue, connector point, A pillar, left
T10h10-pin connector, black, connector point, A pillar, left
T10u10-pin connector, black, connector point, A pillar, right
Y7Automatic anti-dazzle interior mirror
Z4Heated exterior mirror, driver's side
Z5Heated exterior mirror, front passenger's side
   A18 Connection (54), in dash panel wiring harness
   J9 Connection -1- (15a), in ABS wiring harness
*Models with telephone, telematics
**Models with automatic dynamic headlight range control
***Models with automatic anti-dazzle interior mirror

Wiring Diagram AUDI A6 2003 - Fuse box - horn relay



E97Memory operating unit
E277Memory operating unit, front passenger's seat
HHorn plate
J4Dual tone horn relay
J429Central locking control unit
S14Fuse in fuse box
S15Fuse in fuse box
S238Fuse 38 in fuse box
S239Fuse 39 in fuse box
S240Fuse 40 in fuse box
T5d5-pin connector, yellow, behind steering column switch trim
T17a17-pin connector, brown, connector point, A pillar, right
T17b17-pin connector, black, connector point, A pillar, right
T17e17-pin connector, black, connector point, A pillar, left
   135 Earth connection -2-, in dash panel wiring harness
   199 Earth connection -3-, in dash panel wiring harness
   A1 Positive (+) connection (30a), in dash panel wiring harness
   A66 Connection (30a, (ZV/DWA/IR (central locking/anti-theft alarm system/infra-red remote control)), in dash panel wiring harness
*Both possible

Wiring Diagram AUDI A6 2003 - Fuse box - front and rear cigarette lighters - horn



H2High tone horn
H7Low tone horn
L28Cigarette lighter light bulb
S233Fuse 33 in fuse box
S236Fuse 36 in fuse box
S241Fuse 41 in fuse box
S242Fuse 42 in fuse box
S243Fuse 43 in fuse box
T10b10-pin connector, red, connector point, A pillar, left
T10ay10-pin connector, pink, connector point, A pillar, right
U1Cigarette lighter
U9Cigarette lighter, rear
   81 Earth connection -1-, in dash panel wiring harness
   176 Earth connection, in right headlight wiring harness
   179 Earth connection, in left headlight wiring harness
   E112 Connection (horn-87 h), in dash panel wiring harness

Wiring Diagram AUDI A6 2003 - Fuse box - right headlight



M3Side light bulb, right
M7Turn signal bulb, front right
M19Side turn signal bulb, right
M31Dipped beam bulb, right
M32Main beam bulb, right
S18Fuse in fuse box
S20Fuse in fuse box
S22Fuse in fuse box
T10ao10-pin connector, on headlight, right
T10ay10-pin connector, pink, connector point, A pillar, right
   176 Earth connection, in right headlight wiring harness
   C19 Connection -1- (turn signal, right), in headlight wiring harness
   C29 Connection -2- (56b), in headlight wiring harness

Wiring Diagram AUDI A6 2003 - Fuse box - left headlight



M1Side light bulb, left
M5Turn signal bulb, front left
M18Side turn signal bulb, left
M29Dipped beam bulb, left
M30Main beam bulb, left
S19Fuse in fuse box
S21Fuse in fuse box
S223Fuse 23 in fuse box
T10a10-pin connector, pink, connector point, A pillar, left
T10an10-pin connector, on headlight, left
   179 Earth connection, in left headlight wiring harness
   C20 Connection (turn signal, left), in headlight wiring harness
   C28 Connection -1- (56b), in headlight wiring harness

Wiring Diagram AUDI A6 2003 - Left tail light - reversing light - high level brake light bulb



F4Reversing light switch
F125Multi-function switch
L46Rear fog light bulb, left
M4Tail light bulb, left
M6Turn signal bulb, rear left
M9Brake light bulb, left
M16Reversing light bulb, left
M25High level brake light bulb
N110Selector lever lock solenoid
T2am2-pin connector, black, on selector lever console
T10f10-pin connector, brown, connector point, A pillar, left
T10o10-pin connector, brown, connector point, electronics box, plenum chamber
T10ba10-pin connector, blue, connector point, A pillar, left
T17k17-pin connector, red, connector point, electronics box, plenum chamber
T17m17-pin connector, blue, connector point, A pillar, right
W18Luggage compartment light, left
   86 Earth connection -1-, in rear wiring harness
   87 Earth connection -2-, in rear wiring harness
   A87 Connection (RF (reversing light)), in dash panel wiring harness
*Models with manual gearbox
**Models with automatic gearbox 01V, 01L
***Models with automatic gearbox: multitronic® 01J

Wiring Diagram AUDI A6 2003 - Right tail light - fuel pump - fuel gauge senders - heated rear window



E15Heated rear window switch
E87Control and display unit for air conditioner
GFuel gauge sender
G6Fuel pump (pre-supply pump)
G169Fuel gauge sender -2-
G237Fuel gauge sender -3-
J17Fuel pump relay
M2Tail light bulb, right
M8Turn signal bulb, rear right
M10Brake light bulb, right
M17Reversing light bulb, right
S228Fuse 28 in fuse box
T10f10-pin connector, brown, connector point, A pillar, left
T10ba10-pin connector, blue, connector point, A pillar, left
Z1Heated rear window
   75 Earth point, rear pillar, right
   86 Earth connection -1-, in rear wiring harness
   87 Earth connection -2-, in rear wiring harness
   269 Earth connection (sender earth) -1-, in dash panel wiring harness
*Models with front-wheel drive
**Models with four-wheel drive
***Wiring in fuel tank

Wiring Diagram AUDI A6 2003 - Dash panel insert - warning lamps



F9Handbrake warning switch
J104ABS with EDL control unit
J220Motronic control unit
J285Control unit with display in dash panel insert
J429Central locking control unit
K1Main beam warning lamp
K2Alternator warning lamp
K14Handbrake warning lamp
K65Left turn signal warning lamp
K83Fault warning lamp for self-diagnosis/exhaust emissions
K94Right turn signal warning lamp
K132Electronic power control fault lamp
T10o10-pin connector, brown, connector point, electronics box, plenum chamber
T17f17-pin connector, black, in 8-point relay carrier, behind driver's storage compartment
T3232-pin connector, blue, on dash panel insert
T32a32-pin connector, green, on dash panel insert
   135 Earth connection -2-, in dash panel wiring harness
   199 Earth connection -3-, in dash panel wiring harness
   213 Earth connection -4-, in dash panel wiring harness
   A26 Connection (door contact switch/driver's side), in dash panel wiring harness
*Both possible

Wiring Diagram AUDI A6 2003 - Dash panel insert - fuel gauge - coolant temperature gauge - rev. counter - speedometer



G1Fuel gauge
G3Coolant temperature gauge
G5Rev. counter
G21Speedometer
G22Speedometer sender (Hall sender, on gearbox)
G62Coolant temperature sender
J220Motronic control unit
J285Control unit with display in dash panel insert
K4Side light warning lamp
K16Reserve fuel warning lamp
T10p10-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
   85 Earth connection -1-, in engine compartment wiring harness
   A8 Positive (+) connection (58d), in dash panel wiring harness (display illumination)
   A27 Connection (speed signal), in dash panel wiring harness
   A108 Connection (speed signal), in dash panel wiring harness

Wiring Diagram AUDI A6 2003 - Dash panel insert - analogue clock - brake pad/lining wear warning - radio controlled clock



G14Voltmeter
H3Buzzer/gong
J104ABS with EDL control unit
J285Control unit with display in dash panel insert
J489Radio controlled clock receiver
K32Brake pad/lining warning lamp
K47ABS warning lamp
N12Brake pad/lining wear indicator, right (shear element)
N13Brake pad/lining wear indicator, left (shear element)
T4bc4-pin connector, black, for speed sensor, front left
T4bd4-pin connector, black, for speed sensor, front right
T10ba10-pin connector, blue, connector point, A pillar, left
T17f17-pin connector, black, in 8-point relay carrier, behind driver's storage compartment
T3232-pin connector, blue, on dash panel insert
T32a32-pin connector, green, on dash panel insert
YAnalogue clock
Y8Radio controlled clock
   100 Earth connection -1-, in ABS wiring harness
   A79 Connection (hot light switch), in dash panel wiring harness
*Models with radio controlled clock
**Models with auxiliary heater
#ABS 5.3 (allroad models)
##ABS 5.7

Wiring Diagram AUDI A6 2003 - Dash panel insert - oil pressure switch - coolant shortage indicator switch - brake fluid level warning contact



F1Oil pressure switch
F34Brake fluid level warning contact
F66Coolant shortage indicator switch
J104ABS with EDL control unit
J285Control unit with display in dash panel insert
K3Oil pressure warning lamp
K28Coolant temperature/coolant shortage warning lamp
K106Washer fluid low warning lamp
K118Brake system warning lamp
T10e10-pin connector, purple, connector point, A pillar, left
T10p10-pin connector, black, connector point, electronics box, plenum chamber
T17f17-pin connector, black, in 8-point relay carrier, behind driver's storage compartment
T3232-pin connector, blue, on dash panel insert
T32a32-pin connector, green, on dash panel insert
T32c32-pin connector, grey, on dash panel insert
   261 Earth connection, in heated washer jet wiring harness
   269 Earth connection (sender earth) -1-, in dash panel wiring harness
   316 Earth connection (sender earth -2-), in engine wiring harness
*Sender earth output
**Models with driver information system
***Only applies to allroad models with ABS 5.3

Wiring Diagram AUDI A6 2003 - Dash panel insert - immobilizer reading coil - oil level/oil temperature sender - function selection switch II in centre console



D2Immobilizer reading coil
E272Function selection switch II, in centre console
G266Oil level thermo sender, service interval
J234Airbag control unit
J285Control unit with display in dash panel insert
J429Central locking control unit
K75Airbag warning lamp
K117Immobilizer warning lamp
T10o10-pin connector, brown, connector point, electronics box, plenum chamber
T10av10-pin connector, yellow, connector point, A pillar, right
T1717-pin connector, orange, connector point, A pillar, right
T17a17-pin connector, brown, connector point, A pillar, right
T32a32-pin connector, green, on dash panel insert
T32c32-pin connector, grey, on dash panel insert
   85 Earth connection -1-, in engine compartment wiring harness
   269 Earth connection (sender earth) -1-, in dash panel wiring harness
   A121 Connection (high bus), in dash panel wiring harness
   A122 Connection (low bus), in dash panel wiring harness
   A184 Connection (bonnet contact switch), in dash panel wiring harness
CAN bus (data wire)

Wiring Diagram AUDI A6 2003 - Dash panel insert - diagnosis connection



E87Control and display unit for air conditioner
J217Automatic gearbox control unit
J234Airbag control unit
J285Control unit with display in dash panel insert
J429Central locking control unit
J453Multi-function steering wheel control unit
T10av10-pin connector, yellow, connector point, A pillar, right
T16a16-pin connector, diagnosis connection
T1717-pin connector, orange, connector point, A pillar, right
T17m17-pin connector, blue, connector point, A pillar, right
T32a32-pin connector, green, on dash panel insert
   135 Earth connection -2-, in dash panel wiring harness
   199 Earth connection -3-, in dash panel wiring harness
   A76 Connection (diagnosis wire K), in dash panel wiring harness
   A159 Connection (L), in dash panel wiring harness
*Models with automatic gearbox 01V/01L
**Models with multi-function steering wheel
#Both possible

Wiring Diagram AUDI A6 2003 - Basic wiring for radio - connection for switch illumination - shelf illumination



J104ABS with EDL control unit
L120Shelf illumination
L121Cup holder illumination
S237Fuse 37 in fuse box
T2m2-pin connector, brown, behind dash panel, centre
T8f8-pin connector, black, radio connector III
T17d17-pin connector, grey, connector point, A pillar, left
T17f17-pin connector, black, in 8-point relay carrier, behind driver's storage compartment
T17r17-pin connector, white, behind dash panel, centre
WInterior light, front
W13Reading lamp, front passenger's side
W19Reading lamp, driver's side
   213 Earth connection -4-, in dash panel wiring harness
   610 Earth point (radio), below centre console, front
   A19 Connection (58s), in dash panel wiring harness (switch illumination)
   A76 Connection (diagnosis wire K), in dash panel wiring harness
#ABS 5.3 (allroad models)
##ABS 5.7