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AUDI A4 2005 – CAN bus wiring . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A4 2005 - CAN bus wiring (drive train)

J...	Engine control units
J104	ABS control unit with EDL
J217	Automatic gearbox control unit
J234	Airbag control unit
T17	17-pin connector, black, coupling station on left A-pillar
T17d	17-pin connector, red, 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
*	See applicable engine Current Flow Diagram
**	See applicable Current Flow Diagram: automatic gearbox

Wiring Diagram AUDI A4 2005 - CAN bus wiring - control unit with display in dash panel insert

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J285	Control unit with display in dash panel insert
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
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 2005 - CAN bus wiring (convenience)

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J345	Trailer detector control unit
J446	Parking aid control unit
J519	Onboard supply control unit
T16f	16-pin connector, brown, on parking aid control unit
T32b	32-pin connector, grey, on onboard supply 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

Wiring Diagram AUDI A4 2005 - CAN bus wiring (convenience)

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E87	operating and display unit for air conditioning system/Climatronic
J...	Door control units
J136	Seat adjustment with memory control unit
J364	Auxiliary heater control unit
J393	Convenience system central control unit
T10k	10-pin connector, white, coupling station left of A-pillar
T10o	10-pin connector, red, coupling station seat wiring, driver seat
T32e	32-pin connector, on seat adjustment with memory 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

Wiring Diagram AUDI A4 2005 - CAN bus wiring (navigation system and infotainment)

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J402	Navigation operating electronics control unit
J415	Navigation system tuner for TV
R94	Navigation system interface
R99	Chip card reader unit
T12d	12-pin connector, brown, near glove compartment
T26	26-pin connector, black, on navigation operating electronics control unit
A148	Connection (navigation CAN bus, high), in dash panel wiring harness
A149	Connection (navigation 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
*	for models with radio navigation system only
**	for models with radio/navigation system and TV tuner
***	option navigation system

Wiring Diagram AUDI A4 2005 - Navigation system with CD drive control unit

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J401	Navigation system with CD drive control unit
J412	Mobile telephone operating electronics control unit
J507	Language input control unit
J526	Telephone and telematics control unit
T16j	16-pin connector, black, on navigation operating electronics control unit, connector D
T20e	20-pin connector, black, on navigation system with CD drive control unit
T42	42-pin connector, black, on telephone / telematics control unit
T46	46-pin connector, on telephone / telematics control unit
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 telephone / telematics only (USA)
**	for models with navigation system NS-LOW only
***	for models with radio navigation system RNS-E only

Wiring Diagram AUDI A4 2005 - CAN bus wiring (infotainment)

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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
*	only models with radio navigation system (Japan)