AUDI A1 2012 — Infotainment MOST bus . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A1 2012 - Digital sound package control unit - Data bus diagnostic interface - Control unit 1 for information electronics - Radio - CD changer - TV tuner

J525	Digital sound package control unit
J533	Data bus diagnostic interface
J794	Control unit 1 for information electronics
R	Radio
R41	CD changer
R78	TV tuner
T2dg	2-pin connector
T2di	2-pin connector
T2dk	2-pin connector
T2dl	2-pin connector
T2dm	2-pin connector
T2do	2-pin connector
*	According to equipment
*2	Fibre optic cable (FOC)

AUDI A1 2012 Overview of control units in interior of vehicle (3-door models)

Overview of control units in interior of vehicle (3-door models)

1 -	Fresh air blower control unit -J126-

q	Location: in front passenger footwell, behind the glove compartment

q	Overview of 5-door models → item

2 -	CD changer -R41-

q	for models with MMI

q	Fitting location and connectors: → chapter

q	for models with radio chorus or concert: → item

q	Overview of 5-door models → item

3 -	Entry and start authorisation control unit -J518-

q	Fitting location and connector: → chapter

q	Overview of 5-door models → item

3 -	Parking aid control unit -J446-

q	Fitting location and connectors: → chapter

q	Overview of 5-door models → item

3 -	Aerial amplifier for mobile telephone -R86-

q	Fitting location and connectors: → chapter

q	Overview of 5-door models → item

3 -	Seat heating control unit -J882-

q	Fitting location and connector: → chapter

q	Overview of 5-door models → item

4 -	Control unit for headlight range control -J431-

q	Fitting location and connectors: → chapter

q	Overview of 5-door models → item

5 -	Display unit for front information display and operating unit control unit -J685-

q	Location: in middle part dash panel

q	Overview of 5-door models → item

6 -	Front passenger door control unit -J387-

q	Fitting location and connectors for models with left-hand drive: → chapter

q	Fitting location and connectors for models with right-hand drive: → anchor

q	Overview of 5-door models → item

7 -	Voltage stabiliser -J532-

q	Fitting location and connector: → chapter

q	Overview of 5-door models → item

8 -	Driver door control unit -J386-

q	Fitting location and connectors for models with left-hand drive: → chapter

q	Fitting location and connectors for models with right-hand drive: → anchor

q	Overview of 5-door models → item

9 -	Multifunction steering wheel control unit -J453-

q	Location: on steering column

q	Overview of 5-door models → item

9 -	Steering column electronics control unit -J527-

q	Location: on steering column

q	Overview of 5-door models → item

9 -	ESL control unit -J764-

q	Fitting location and connector: → chapter

q	Overview of 5-door models → item

9 -	Immobiliser reader coil -D2-

q	Fitting location and connector for models with ignition lock: → chapter

q	Fitting location and connector for models without ignition lock (with keyless entry system): → anchor

q	Overview of 5-door models → item

10 -	Control unit in dash panel insert -J285-

q	Location: in driver side dash panel

q	Overview of 5-door models → item

11 -	16-pin connector -T16-, diagnosis connection

q	Fitting location for models with left-hand drive: → chapter

q	Fitting location for models with right-hand drive: → anchor

q	Overview of 5-door models → item

12 -	Onboard supply control unit -J519-

q	Fitting location and connectors for models with left-hand drive: → chapter

q	Fitting location and connectors for models with right-hand drive: → anchor

q	Overview of 5-door models → item

13 -	Data bus diagnostic interface -J533-

q	Fitting location and connector for models with left-hand drive: → chapter

q	Fitting location and connector for models with right-hand drive: → anchor

q	Overview of 5-door models → item

14 -	Airbag control unit -J234-

q	Fitting location and connector: → chapter

q	Overview of 5-door models → item

15 -	Control unit for information electronics 1 -J794-

q	for models with MMI

q	Location: in middle part dash panel

15 -

Radio -R-

q	for models with radio chorus or concert

q	Location: in middle part dash panel

q	Fitting location for models with MMI: → item

q	Overview of 5-door models → item

15 -	CD changer -R41-

q	for models with radio chorus or concert

q	Location: in middle part dash panel (integrated in radio)

q	Overview of 5-door models → item

15 -	Heater control unit -J65-

q	for models with heater (without air conditioning)

q	Location: at bottom of middle part dash panel

q	Overview of 5-door models → item

15 -	Climatronic control unit -J255-

q	for models with automatic air conditioning system

q	Location: at bottom of middle part dash panel

q	Overview of 5-door models → item

15 -	Air conditioning system control unit -J301-

q	for models with manual air conditioning system

q	Location: at bottom of middle part dash panel

q	Overview of 5-door models → item

AUDI A1 2012 Overview of control units in interior of vehicle (5-door models)

Overview of control units in interior of vehicle (5-door models)

1 -	Fresh air blower control unit -J126-

q	Location: in front passenger footwell, behind the glove compartment

2 -	CD changer -R41-

q	for models with MMI

q	Fitting location and connectors: → chapter

q	for models with radio chorus or concert: → item

3 -	Entry and start authorisation control unit -J518-

q	Fitting location and connector: → chapter

3 -	Parking aid control unit -J446-

q	Fitting location and connectors: → chapter

3 -	Aerial amplifier for mobile telephone -R86-

q	Fitting location and connectors: → chapter

3 -	Seat heating control unit -J882-

q	Fitting location and connector: → chapter

4 -	Control unit for headlight range control -J431-

q	Fitting location and connectors: → chapter

5 -	Display unit for front information display and operating unit control unit -J685-

q	Location: in middle part dash panel

6 -	Front passenger door control unit -J387-

q	Fitting location and connectors for models with left-hand drive: → chapter

q	Fitting location and connectors for models with right-hand drive: → anchor

7 -	Voltage stabiliser -J532-

q	Fitting location and connector: → chapter

8 -	Rear right door control unit -J389-

q	Location: in rear right door

9 -	Rear left door control unit -J388-

q	Location: in rear left door

10 -	Driver door control unit -J386-

q	Fitting location and connectors for models with left-hand drive: → chapter

q	Fitting location and connectors for models with right-hand drive: → anchor

11 -	Multifunction steering wheel control unit -J453-

q	Location: on steering column

11 -	Steering column electronics control unit -J527-

q	Location: on steering column

11 -	ESL control unit -J764-

q	Fitting location and connector: → chapter

11 -	Immobiliser reader coil -D2-

q	Fitting location and connector for models with ignition lock: → chapter

q	Fitting location and connector for models without ignition lock (with keyless entry system): → anchor

12 -	Control unit in dash panel insert -J285-

q	Location: in driver side dash panel

13 -	16-pin connector -T16-, diagnosis connection

q	Fitting location for models with left-hand drive: → chapter

q	Fitting location for models with right-hand drive: → anchor

14 -	Onboard supply control unit -J519-

q	Fitting location and connectors for models with left-hand drive: → chapter

q	Fitting location and connectors for models with right-hand drive: → anchor

15 -	Data bus diagnostic interface -J533-

q	Fitting location and connector for models with left-hand drive: → chapter

q	Fitting location and connector for models with right-hand drive: → anchor

16 -	Airbag control unit -J234-

q	Fitting location and connector: → chapter

17 -

Radio -R-

q	for models with radio chorus or concert

q	Location: in middle part dash panel

q	Fitting location for models with MMI: → item

17 -	CD changer -R41-

q	for models with radio chorus or concert

q	Location: in middle part dash panel (integrated in radio)

17 -	Heater control unit -J65-

q	for models with heater (without air conditioning)

q	Location: at bottom of middle part dash panel

17 -	Climatronic control unit -J255-

q	for models with automatic air conditioning system

q	Location: at bottom of middle part dash panel

17 -	Air conditioning system control unit -J301-

q	for models with manual air conditioning system

q	Location: at bottom of middle part dash panel

Overview of control units in rear part of vehicle   Note Overview also valid for 5-door models!

1 -	Fuel pump control unit -J538-

q	Fitting location and connectors: → chapter

2 -	Battery monitor control unit -J367-

q	for models with battery in luggage compartment

q	Fitting location and connector: → chapter

q	for models with battery in engine compartment: location in engine compartment at battery negative terminal

3 -	Control units on left in luggage compartment: → chapter

3 -	Digital sound package control unit -J525-

q	Fitting location and connectors: → chapter

3 -

Radio -R-

q	for models with MMI

q	Fitting location and connectors: → chapter

q	Fitting location for models with radio chorus or concert (without MMI): → item

3 -	TV tuner -R78-

q	Fitting location and connectors: → chapter

3 -	TV card reader -R204-

q	Fitting location and connector: → chapter

3 -	Trailer detector control unit -J345-

q	Location: in left of luggage compartment, behind side trim.

AUDI A1 2012 CD changer R41 CD changer -R41- Fitting location: In glove compartment.

A -	CD changer -R41-

A1 -	2-pin connector (connector B) -T2dm-

A2 -

Vacant

A3 -

Vacant

A4 -

Vacant

A5 -	8-pin connector, black (connector A) -T8aa-

AUDI A1 2012 Control unit for headlight range control J431 Control unit for headlight range control -J431- Fitting location: behind glove compartment.

A -	Control unit for headlight range control -J431-

B -	26-pin connector, black -T26a-

AUDI A1 2012 Control units at instrument panel, front passenger side Control units at instrument panel, front passenger side Fitting location: behind glove compartment, near A-pillar.

A -	Entry and start authorisation control unit -J518-

A1 -	32-pin connector, blue -T32-

B -	Parking aid control unit -J446-

B1 -	16-pin connector, brown -T16e-

B2 -	12-pin connector, brown -T12e-

B3 -	12-pin connector, black -T12g-

C -	Aerial amplifier for mobile telephone -R86-

C1 -	4-pin connector, black -T4ak-

C2 -	1-pin connector, black -T1v-

C3 -	1-pin connector, violet -T1u-

D -	Seat heating control unit -J882-

D1 -	16-pin connector, black -T16b-

AUDI A1 2012 Airbag control unit J234 Airbag control unit -J234- Fitting location: on front centre console.

A -	Airbag control unit -J234-

B -	50-pin connector, yellow -T50-

AUDI A1 2012 Driver door control unit J386 Driver door control unit -J386- Fitting location driver side door control unit -J386- for models with left-hand drive: In driver door.   Note t  Illustration shows model with left-hand drive. t  Illustration for models with right-hand drive → anchor.

A -	Driver door control unit -J386-

A1 -	32-pin connector -T32j-

A2 -	16-pin connector -T16m-

A3 -	20-pin connector -T20f-

A4 -	6-pin, connector -T6am-

Fitting location driver side door control unit -J386- for models with right-hand drive: In driver door.   Note t  Figure shows right-hand drive vehicle. t  Figure for left-hand drive vehicles → chapter.

A -	Driver door control unit -J386-

A1 -	32-pin connector -T32j-

A2 -	16-pin connector -T16m-

A3 -	20-pin connector -T20f-

A4 -	6-pin, connector -T6am-

AUDI A1 2012 Front passenger door control unit J387 Front passenger door control unit -J387- Fitting location front passenger door control unit -J387- for models with left-hand drive: In front passenger door.   Note t  Illustration shows model with left-hand drive. t  Illustration for models with right-hand drive → anchor.

A -	Front passenger door control unit -J387-

A1 -	32-pin connector -T32l-

A2 -	16-pin connector -T16n-

A3 -	20-pin connector -T20g-

A4 -	6-pin, connector -T6ao-

Fitting location front passenger door control unit -J387- for models with right-hand drive: In front passenger door.   Note t  Figure shows right-hand drive vehicle. t  Figure for left-hand drive vehicles → chapter.

A -	Front passenger door control unit -J387-

A1 -	32-pin connector -T32l-

A2 -	16-pin connector -T16n-

A3 -	20-pin connector -T20g-

A4 -	6-pin, connector -T6ao-

AUDI A1 2012 Voltage stabiliser J532 Voltage stabiliser -J532- Fitting location: Under front passenger seat.

A -	Voltage stabiliser -J532-

B -	12-pin connector, black -T12aa-

AUDI A1 2012 ESL control unit J764 ESL control unit -J764- Fitting location: under the steering column cover at bottom.   Note For models without ignition lock (with keyless entry system) only.

A -	ESL control unit -J764-

B -	16-pin connector -T16a-

AUDI A1 2012 Immobiliser reader coil D2 Immobiliser reader coil -D2- Fitting location Immobiliser reader coil -D2- for models with ignition lock: under the steering column cover on right.   Note t  Illustration shows model with ignition lock. t  Illustration for models without ignition lock (with keyless entry system) → anchor.

1 -	Immobiliser reader coil -D2-

2 -	2-pin connector -T2l-

Fitting location Immobiliser reader coil -D2- for models without ignition lock (with keyless entry system): under the steering column cover on right.   Note t  Illustration shows model without ignition lock (with keyless entry system). t  Illustration for models with ignition lock → chapter.

1 -	Immobiliser reader coil -D2-

2 -	2-pin connector -T2l-

AUDI A1 2012 Diagnosis connection - 16-pin connector T16 Diagnosis connection - 16-pin connector -T16- Fitting location of diagnosis connection - 16-pin connector -T16- for models with left-hand drive: Below the dash panel, driver side   Note t  Illustration shows model with left-hand drive. t  Illustration for models with right-hand drive → anchor.

A -	16-pin connector -T16-

Fitting location of diagnosis connection - 16-pin connector -T16- for models with right-hand drive: Below the dash panel, driver side   Note t  Figure shows right-hand drive vehicle. t  Figure for left-hand drive vehicles → chapter.

A -	16-pin connector -T16-

AUDI A1 2012 Data bus diagnostic interface J533 Data bus diagnostic interface -J533- Fitting location Data bus diagnostic interface -J533- for models with left-hand drive: Below the dash panel, driver side   Note t  Illustration shows model with left-hand drive. t  Illustration for models with right-hand drive → anchor.

A -	Data bus diagnostic interface -J533-

B -	2-pin connector, black -T2dl-

C -	20-pin connector, black -T20d-

Fitting location Data bus diagnostic interface -J533- for models with right-hand drive: Below the dash panel, driver side   Note t  Figure shows right-hand drive vehicle. t  Figure for left-hand drive vehicles → chapter.

A -	Data bus diagnostic interface -J533-

B -	2-pin connector, black -T2dl-

C -	20-pin connector, black -T20d-

AUDI A1 2012 Onboard supply control unit J519 Onboard supply control unit -J519- Fitting location Onboard supply control unit -J519- for models with left-hand drive: Below the dash panel, driver side   Note t  Illustration shows model with left-hand drive. t  Illustration for models with right-hand drive → anchor.

D -	Onboard supply control unit -J519-

A -	52-pin connector, black (connector A) -T52a-

B -	52-pin connector, white (connector B) -T52b-

C -	52-pin connector, brown (connector C) -T52c-

Fitting location Onboard supply control unit -J519- for models with right-hand drive: Below the dash panel, driver side   Note t  Figure shows right-hand drive vehicle. t  Figure for left-hand drive vehicles → chapter.

D -	Onboard supply control unit -J519-

A -	52-pin connector, black (connector A) -T52a-

B -	52-pin connector, white (connector B) -T52b-

C -	52-pin connector, brown (connector C) -T52c-

AUDI A1 2012 Fuel pump control unit J538 Fuel pump control unit -J538- Fitting location: Under rear seat bench, right.   Note For models with petrol engine only.

A -	Fuel pump control unit -J538-

A1 -	10-pin connector -T10d-

B1 -	5-pin connector -T5a-

AUDI A1 2012 Battery monitor control unit J367 Battery monitor control unit -J367- Fitting location: at battery negative terminal.   Note t  Illustration shows model with battery in luggage compartment. t  For models with battery in engine compartment: fitting location of -J367- correspondingly identical on negative terminal of battery.

1 -	battery -A-

2 -	Battery monitor control unit -J367-

3 -	2-pin connector, black -T2x-

AUDI A1 2012 Control units on left in luggage compartment Control units on left in luggage compartment Fitting location: on left in luggage compartment.

A -	Digital sound package control unit -J525-

A1 -	2-pin connector, black -T2dk-

A2 -

Vacant

A3 -	38-pin connector, black -T38-

B -	TV tuner -R78-

B1 -	2-pin connector, brown -T2dh-

B2 -	2-pin connector, green -T2dn-

B3 -	Single connector, green -T1m-

B4 -	2-pin connector, black -T2do-

B5 -	4-pin connector, blue -T4ah-

B6 -	20-pin connector, black -T20c-

C -

Radio -R-

C1 -	2-pin connector -T2df-

C2 -	2-pin connector -T2dg-

C3 -	Single connector -T1i- (for digital radio - DAB)

C3 -	Single connector -T1l- (for satellite radio - SDARS)

C4 -	Black connection block (-T8ag-, -T10ag-, -T12w-)

D -	TV card reader -R204-

-	4-pin connector, blue -T4ai-