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AUDI A4 2008 – CAN bus wiring . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A4 2008 - Engine control unit - ABS control unit

J...	Engine control units
J104	ABS control unit
J217	Automatic gearbox control unit
J234	Airbag control unit
T17	17-pin connector, black, coupling station on left of A-pillar
T17e	17-pin connector, white, coupling station on electronics box, plenum chamber
A121	Connection (high bus), in dash panel wiring harness
A122	Connection (low bus), in dash panel wiring harness
D159	Connection (high bus), in engine compartment wiring harness
D160	Connection (low bus), in engine compartment wiring harness
*	⇒ applicable engine Current Flow Diagram
**	⇒ applicable Current Flow Diagram: automatic gearbox

Wiring Diagram AUDI A4 2008 - Control unit for headlight range control - steering column electronics control unit

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J431	Headlight range control, control unit
J527	Steering column electronics control unit
T16	16-pin connector, black, diagnostic connector
T16a	16-pin connector, black, on steering column electronics control unit
T17a	17-pin connector, red, coupling station on left of A-pillar
T17c	17-pin connector, red, coupling station on right of A-pillar
V318	Left dynamic cornering light control motor
V319	Right dynamic cornering light control motor
A121	Connection (high bus), in dash panel wiring harness
A122	Connection (low bus), in dash panel wiring harness
B229	Connection (high bus), in interior wiring harness
B230	Connection (low bus), in interior wiring harness

Wiring Diagram AUDI A4 2008 - Control unit in dash panel insert - onboard supply control unit - steering column electronics control unit

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J285	Control unit in dash panel insert
J519	Onboard supply control unit
J527	Steering column electronics control unit
T16a	16-pin connector, black, on steering column electronics control unit
T32	32-pin connector, blue, on dash panel insert
T32a	32-pin connector, green, on dash panel insert
T32b	32-pin connector, grey, on onboard supply control unit
A121	Connection (high bus), in dash panel wiring harness
A122	Connection (low bus), in dash panel wiring harness
A146	Connection (convenience CAN bus, high), in dash panel wiring harness
A147	Connection (convenience CAN bus, low), in dash panel wiring harness
A178	Connection (infotainment CAN bus, high), in dash panel wiring harness
A179	Connection (infotainment CAN bus, low), in dash panel wiring harness

Wiring Diagram AUDI A4 2008 - Seat and steering column adjustment control unit with memory - trailer detector - Parking aid - radio and navigation system

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J136	Seat and steering column adjustment control unit with memory function
J345	Trailer detector control unit
J446	Parking aid control unit
J503	Control unit with display for radio and navigation system
J810	Driver seat position control unit
T2bb	2-pin connector, black, connector D
T10o	10-pin connector, red, coupling station seat wiring, driver seat
T16f	16-pin connector, brown, on parking aid control unit
T32e	32-pin connector
T32j	32-pin connector, blue
A146	Connection (convenience CAN bus, high), in dash panel wiring harness
A147	Connection (convenience CAN bus, low), in dash panel wiring harness
A178	Connection (infotainment CAN bus, high), in dash panel wiring harness
A179	Connection (infotainment CAN bus, low), in dash panel wiring harness

Wiring Diagram AUDI A4 2008 - Door control units

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J386	Driver door control unit
J387	Front passenger door control unit
J388	Rear left door control unit
J389	Rear right door control unit
T10e	10-pin connector, black
T10f	10-pin connector, black
T10g	10-pin connector, black
T10h	10-pin connector, black
T20	20-pin connector, black, door A-pillar left
T20a	20-pin connector, black, door A-pillar right
T20b	20-pin connector, black, door B-pillar left
T20c	20-pin connector, black, door B-pillar right
A146	Connection (convenience CAN bus, high), in dash panel wiring harness
A147	Connection (convenience CAN bus, low), in dash panel wiring harness
A178	Connection (infotainment CAN bus, high), in dash panel wiring harness
A179	Connection (infotainment CAN bus, low), in dash panel wiring harness

Wiring Diagram AUDI A4 2008 - Climatronic control unit - auxiliary heater control unit - Convenience system central control unit

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J...	Engine control units
J255	Climatronic control unit
J364	Auxiliary heater control unit
J393	Convenience system central control unit
T10k	10-pin connector, white, coupling station on left of A-pillar
T16i	16-pin connector, brown, on convenience system central control unit
A146	Connection (convenience CAN bus, high), in dash panel wiring harness
A147	Connection (convenience CAN bus, low), in dash panel wiring harness
A178	Connection (infotainment CAN bus, high), in dash panel wiring harness
A179	Connection (infotainment CAN bus, low), in dash panel wiring harness
*	⇒ applicable engine Current Flow Diagram

Wiring Diagram AUDI A4 2008 - Radio - navigation system - telephone

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J401	Navigation system with CD drive control unit
J503	Control unit with display for radio and navigation system
R	Radio
R36	Telephone transmitter and receiver unit
T16j	16-pin connector, black, connector D
T20e	20-pin connector, black
A178	Connection (infotainment CAN bus, high), in dash panel wiring harness
A179	Connection (infotainment CAN bus, low), in dash panel wiring harness
*	for models with navigation system NS-LOW only
**	for models with navigation system RNS-E only
***	for models with radio navigation system RNS-low only
****	only for models with radio, applicable from November 2006

Wiring Diagram AUDI A4 2008 - Radio and navigation system (models for Japan)

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J402	Navigation operating electronics control unit
R	Radio
T20d	20-pin connector, black, radio connector I
A178	Connection (infotainment CAN bus, high), in dash panel wiring harness
A179	Connection (infotainment CAN bus, low), in dash panel wiring harness
*	for models with radio navigation system (Japan) only
**	only for models with radio, applicable up to October 2006