VW GOLF 2012 — 2.0 l/85 kW Motronic (7. 5. 10), engine code BHP . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW GOLF 2012 - Battery - starter - alternator - voltage regulator

A	Battery
B	Starter
C	Alternator
C1	Voltage regulator
S163	Fuse 2 (30) in fuse holder on battery
S176	Fuse 4 (30) in fuse holder on battery
S177	Fuse 5 (30) in fuse holder on battery
T1b	Single pin connector, on the battery
T2l	2-pin connector, near starter
T2o	2-pin connector, on alternator
T6b	6-pin connector, brown, on left in engine compartment
1	Earth strap, battery - body
2	Earth strap, gearbox - body
500	Screw connection 1 (30), on relay plate
502	Screw connection 1 (30a), on relay plate
507	Screw connection (30), on fuse holder on battery

Wiring Diagram VW GOLF 2012 - Ignition/starter switch - X-contact relief relay

D	Ignition/starter switch
J59	X-contact relief relay
SA10	Fuse 10 on fuse holder A
SA13	Fuse 13 on fuse holder A
SA37	Fuse 37 on fuse holder A
T8b	8-connector, on ignition/starter switch
501	Screw connection 2 (30), on relay plate
503	Screw connection (75x), on relay plate
D50	Positive connection (30), in engine compartment wiring harness
D75	Positive connection 2 (30), in engine compartment wiring harness
D104	Positive connection 2 (30a), in engine compartment wiring harness
D158	Positive connection (X), in engine compartment wiring harness

Wiring Diagram VW GOLF 2012 - Engine speed sender - Hall sender - intake air temperature sender - coolant temperature display sender - intake manifold pressure sender - engine control unit

G28	Engine speed sender
G40	Hall sender
G42	Intake air temperature sender
G62	Coolant temperature display sender
G71	Intake manifold pressure sender
J623	Engine control unit
T3l	3-pin connector, on engine speed sender
T3m	3-pin connector, on Hall sender
T4j	4-pin connector, on intake air temperature sender
T4l	4-pin connector, on coolant temperature display sender
T80c	80-pin connector, on engine control unit
E50	Positive connection 3 (5 Volt), in injection system wiring harness
E57	Positive connection 2, in injection system wiring harness

Wiring Diagram VW GOLF 2012 - Throttle valve drive for electric throttle (EPC) - throttle valve drive angle sender 2 for electric throttle (EPC) - injector - cylinder 1 - injector - cylinder 2 - injector - cylinder 3 - injector - cylinder 4

G186	Throttle valve drive for electric throttle (EPC)
G187	Throttle valve drive angle sender 1 for electric throttle (EPC)
G188	Throttle valve drive angle sender 2 for electric throttle (EPC)
J623	Engine control unit
N30	Injector, cylinder 1
N31	Injector, cylinder 2
N32	Injector, cylinder 3
N33	Injector, cylinder 4
T2t	2-pin connector, on injector, cylinder 1
T2u	2-pin connector, on injector, cylinder 2
T2v	2-pin connector, on injector, cylinder 3
T2x	2-pin connector, on injector, cylinder 4
T6f	6-pin connector, on throttle valve drive for electric throttle (EPC)
T14a	14-pin connector, in left engine compartment
T80c	80-pin connector, on engine control unit
D180	Connection (87a), in engine compartment wiring harness
E48	Connection (injectors), in injection system wiring harness

Wiring Diagram VW GOLF 2012 - Knock sensor 1 - knock sensor 2 - engine control unit - ignition transformer - spark plug connector - spark plugs

G61	Knock sensor 1
G66	Knock sensor 2
J623	Engine control unit
N152	Ignition transformer
P	Spark plug connector
Q	Spark plugs
T2s	2-pin connector, in engine compartment
T2y	2-pin connector, on knock sensor 1
T2z	2-pin connector, on knock sensor 2
T4k	4-pin connector, on ignition transformer
T80c	80-pin connector, on engine control unit
342	Earth connection 4, in injection system wiring harness
680	Earth strap, bonnet - ignition transformer
E59	Positive connection 4, in injection system wiring harness

Wiring Diagram VW GOLF 2012 - Lambda probe - lambda probe after catalytic converter - engine control unit - active charcoal filter system solenoid valve 1

G39	Lambda probe
G130	Lambda probe after catalytic converter
J623	Engine control unit
N80	Activated charcoal filter system solenoid valve 1
T2f	2-pin connector, on active charcoal filter system solenoid valve 1
T4m	4-pin connector, on lambda probe
T4n	4-pin connector, on lambda probe after catalytic converter
T6b	6-pin connector, brown, on left in engine compartment
T52b	52-pin connector, on engine control unit
E30	Connection (87a), in engine wiring harness
E42	Positive connection (30a), in injection system wiring harness

Wiring Diagram VW GOLF 2012 - Brake light switch - clutch pedal switch - brake pedal switch - engine control unit

F	Brake light switch
F36	Clutch pedal switch
F47	Brake pedal switch
J255	Climatronic control unit
J623	Engine control unit
T4f	4-pin connector, on clutch pedal switch
T4i	4-pin connector, on brake light switch
T10b	10-pin connector, white, in left engine compartment
T10c	10-pin connector, black, in left engine compartment
T10d	10-pin connector, orange, in left engine compartment
T12c	12-pin connector, on Climatronic control unit
T16b	16-pin connector, on Climatronic control unit
T17b	17-pin connector, behind centre dash panel
T52b	52-pin connector, on engine control unit
A18	Connection (54), in dash panel wiring harness
A20	Positive connection (15a), in dash panel wiring harness
E46	Positive connection 1 (5 Volt), in injection system wiring harness
*	for models with Climatronic only

Wiring Diagram VW GOLF 2012 - Accelerator position sender - accelerator position sender 2 - engine control unit

G79	Accelerator position sender
G185	Accelerator position sender 2
J623	Engine control unit
T6d	6-pin connector, on accelerator position sender
T10a	10-pin connector, blue, in left engine compartment
T10b	10-pin connector, white, in left engine compartment
T10d	10-pin connector, orange, in left engine compartment
T52b	52-pin connector, on engine control unit
608	Earth point, in centre of plenum chamber
D101	Connection 1, in engine compartment wiring harness
D159	Connection (high bus), in engine compartment wiring harness
D160	Connection (low bus), in engine compartment wiring harness

Wiring Diagram VW GOLF 2012 - Engine control unit

J293	Radiator fan control unit
J623	Engine control unit
T2s	2-pin connector, in engine compartment
T6b	6-pin connector, brown, on left in engine compartment
T10b	10-pin connector, white, in left engine compartment
T10c	10-pin connector, black, in left engine compartment
T10d	10-pin connector, orange, in left engine compartment
T14b	14-pin connector, on radiator fan control unit
T52b	52-pin connector, on engine control unit
D52	Positive connection (15a), in engine compartment wiring harness
D61	Connection (air conditioning system), in engine compartment wiring harness

Wiring Diagram VW GOLF 2012 - Fuel gauge sender - fuel system pressurisation pump - fuel pump relay

G	Fuel gauge sender
G6	Fuel system pressurisation pump
J17	Fuel pump relay
SA28	Fuse 28 on fuse holder A
SA32	Fuse 32 on fuse holder A
SA43	Fuse 43 on fuse holder A
T4e	4-pin connector, on fuel system pressurisation pump
42	Earth point, next to steering column
85	Earth connection 1, in engine compartment wiring harness
504	Screw connection 1 (87), on relay plate
D173	Connection (87), in engine wiring harness

Wiring Diagram VW GOLF 2012 - Speedometer sender - Motronic current supply relay

G22	Speedometer sender
J271	Motronic current supply relay
SA7	Fuse 7 on fuse holder A
SA29	Fuse 29 on fuse holder A
T3n	3-pin connector, on speedometer sender
T6g	6-pin connector, on Motronic current supply relay
T14a	14-pin connector, in left engine compartment
D51	Positive connection 1 (15), in engine compartment wiring harness
D136	Positive connection 2 (15a), in engine compartment wiring harness

Wiring Diagram VW GOLF 2012 - Oil pressure switch - fuel gauge - coolant temperature gauge - dash panel insert - reserve fuel warning lamp - electronic power control fault lamp

F22	Oil pressure switch
G1	Fuel gauge
G3	Coolant temperature gauge
G5	Rev. counter
G21	Speedometer
J285	Control unit in dash panel insert
K	Dash panel insert
K2	Alternator warning lamp
K3	Oil pressure warning lamp
K105	Reserve fuel warning lamp
K132	Electric power control fault lamp
T1f	Single pin connector, on oil pressure switch
T14a	14-pin connector, in left engine compartment
T32a	32-pin connector, blue, on dash panel insert
T32b	32-pin connector, green, on dash panel insert
D124	Connection 22, in engine compartment wiring harness

Wiring Diagram VW GOLF 2012 - Ambient temperature sensor - coolant shortage indicator sender - control unit in dash panel insert - dash panel insert

G17	Ambient temperature sensor
G32	Coolant shortage indicator sender
J285	Control unit in dash panel insert
K	Dash panel insert
T2g	2-pin connector, on coolant shortage indicator sender
T2i	2-pin connector, on ambient temperature sensor
T14a	14-pin connector, in left engine compartment
T32b	32-pin connector, green, on dash panel insert
269	Earth connection (sender earth) 1, in dash panel wiring harness

VW GOLF 2012

Earth strap, battery - body - Arrow A -

VW GOLF 2012 Earth points in the engine compartment

Earth points in the engine compartment

1	Earth strap, battery - body

q	Location: → Reference

2	Earth strap, gearbox - body

q	Location: → Reference

12	Earth point, on left in engine compartment

q	Location: → Reference

15	Earth point, on cylinder head

q	Location: → Reference

608	Earth point, in centre of plenum chamber

q	Location: → Reference

609	Earth point, on right in plenum chamber

q	Location: → Reference

1 Earth strap, battery - body - Arrow A -    12 Earth point, in engine compartment, left -arrow B-

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2 Earth strap, gearbox - body- Arrow -

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15 Earth connection on cylinder head - arrow -

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608 Earth connection on water deflector, centre - arrow -

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609 Earth connection on water deflector, right - arrow -

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Earth points in passenger compartment

42	Earth point, next to steering column

q	Location: → Reference

44	Earth point, lower part of left A-pillar

q	Location: → Reference

45	Earth point, centre behind dash panel

q	Location: → Reference

49	Earth connection, on steering column

q	Location: → Reference

42 Earth point, next to steering column- arrow -

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44 Earth connection, lower part of left A-pillar -arrow-

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45 Earth connection, centre behind dash panel- Arrow -

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49 Earth connection on steering column - arrow -

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Earth points in rear part of vehicle

50	Earth points, in luggage compartment, left

q	Location: → Reference

50 Earth points in luggage compartment, left - Arrow -

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VW GOLF 2012 Relay plate, behind left dash panel

Relay plate, behind left dash panel

Relay description:

1 -	Fuel pump relay -J17-

-	Telephone and Telematik control unit -J526-

-	Relay 1 for cut-off valve -J651-

2 -	Rear lid remote release motor relay -J398-

-	Rear lid remote release control unit -J546-

3 -	Starter relay -J53-

-	Ignition cut-off delay relay -J64-

4 -	Fog light relay -J5-

5 -	Reversing light relay -J219-

-	Multifunction steering wheel control unit -J453-

6 -	Multifunction steering wheel control unit -J453-

7 -	Low beam switching-on relay -J90-

8 -	Heated exterior mirror relay -J99-

-	Cigarette lighter relay -J193-

9 -	Fuel pump relay -J17-

-	Diesel direct injection system relay -J322-

-	Siren relay -J408-

10 -	Fuel pump relay -J17-

-	Glow plug relay -J52-

11 -	Automatic gearbox relay -J60-

12 -	Electric drive main relay -J437-

13 -	Radiator fan relay -J26-

Relay on additional support under relay plate

Relay description:

1 -	Dual tone horn relay -J4-

2 -	X-contact relief relay -J59-

3 -

vacant

4 -	Glow plug relay -J52-

-	Fuel pump relay -J17-

V -	Automatic intermittent wash and wipe relay -J31-

VI -	Automatic intermittent wash and wipe relay -J31-

VW GOLF 2012 Motronic control unit J220

Motronic control unit -J220-

   

Location: –  Central under plenum chamber cover -Arrow-

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Designation of connector:

A -	Motronic control unit -J220-

B -	81-pin connector -T81-

C -	40-pin connector -T40-

Radiator fan control unit -J293-

Location: –  in engine compartment, bottom left -arrow-

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Designation of connector:

A -	Radiator fan control unit -J293-

B -	4-pin connector, on radiator fan control unit -T4v-

C -	14-pin connector, on radiator fan control unit -T14-

Automatic gearbox control unit -J217-

Location: –  in engine compartment, right -arrow-

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Designation of connector:

A -	Automatic gearbox control unit -J217-

B -	68-pin connector, on automatic gearbox control unit -T68-

Driver door control unit -J386-

Location: –  behind the door trim, front left -arrow-

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Designation of connector:

A -	Driver door control unit -J386-

B -	29-pin connector, on driver door control unit -T29-

Front passenger door control unit -J387-

Location: –  behind the door trim, front right -arrow-

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Designation of connector:

A -	Front passenger door control unit -J387-

B -	29-pin connector, on front passenger door control unit -T29a-

Rear left door control unit -J388-

Location: –  behind the door trim, rear left -arrow-

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Designation of connector:

A -	Rear left door control unit -J388-

B -	18-pin connector, on left rear door control unit -T18-

Rear right door control unit -J389-

Location: –  behind the door trim, rear right -arrow-

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Designation of connector:

A -	Rear right door control unit -J389-

B -	18-pin connector, on left rear door control unit -T18b-

Climatronic control unit -J255-

Location: –  In centre console, under radio -arrow-

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Designation of connector:

E -	Climatronic control unit -J255-

A -	12-pin connector, on Climatronic control unit -T12c-

B -	20-pin connector, on Climatronic control unit -T20-

C -	16-pin connector, on Climatronic control unit -T16b-

D -	16-pin connector, on Climatronic control unit -T16a-

Convenience system central control unit -J393-

Location: –  Behind glove compartment, front passenger side -arrow-

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Designation of connector:

A -	Convenience system central control unit -J393-

B -	15-pin connector, on convenience system central control unit -T15-

C -	23-pin connector, on convenience system central control unit -T23-

Control unit with display in dash panel insert -J285-

Location: –  Behind instrument cluster-arrow-

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Designation of connector:

A -	Control unit with display in dash panel insert -J285-

C -	32-pin connector, blue, on instrument cluster control unit with indicator unit -T32-

1 -	Terminal 15a

2 -	Right turn signal

3 -	Speed signal

4 -	Turn signal relay

5 -	Fuel gauge sender

6 -

vacant

7 -	Terminal 31

8 -	Coolant temperature indicator sensor

9 -	Terminal 31

10 -	Oil pressure switch

11 -

vacant

12 -	Alternator

-	Voltage regulator

13 -

vacant

14 -	Rear fog light bulb

15 -

vacant

16 -

vacant

17 -	Terminal 56a

18 -	Left turn signal

19 -	ABS control unit

20 -	Terminal 58b

21 -	Door contact switch

22 -	Coolant shortage indicator sender

23 -	Terminal 30a

24 -	Terminal 31

25 -	Terminal K

26 -	Terminal 58r

27 -	Terminal 58l

28 -	Speedometer sender

29 -	Brake fluid level warning contact

30 -	Terminal 86s

31 -	Front left belt switch

32 -

vacant

B -	32-pin connector, green, on instrument cluster control unit with indicator unit -T32a-

1 -

vacant

2 -	Immobilizer reader coil

3 -

vacant

4 -	Terminal for CAN-Bus / control

5 -	Immobilizer

6 -	Windscreen washer fluid level sender

7 -	Brake wear indicator

8 -	Terminal for CAN-Bus "high" - convenience -

9 -	Terminal for CAN-Bus "low" - convenience -

10 -

vacant

11 -

vacant

12 -	Radiator fan control unit

13 -	Handbrake warning switch

14 -	Terminal for ASR/ESP

15 -

vacant

16 -

vacant

17 -	Immobilizer reader coil

18 -

vacant

19 -	Terminal for CAN-Bus high

20 -	Terminal for CAN-Bus low

21 -

vacant

22 -	Contact switch on bonnet / bonnet for alarm system

23 -	Multifunction display memory switch

24 -	Multifunction display memory switch

25 -	Multifunction display memory switch

26 -	Ambient temperature sensor

27 -	Terminal for CAN-Bus high

28 -	Terminal for CAN-Bus low

29 -

vacant

30 -	Terminal for clock

31 -	Terminal for data

32 -	Terminal for Enable

Airbag control unit -J234-

Location: –  under centre console -arrow-

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Designation of connector:

A -	Airbag control unit -J234-

B -	75-pin connector, on airbag control unit -T75-

ABS control unit -J104-

Location: –  In engine compartment, left -arrow-

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Designation of connector:

A -	ABS control unit -J104-

B -	47-pin connector, on ABS control unit -T47-

Parking aid control unit -J446-

Location: –  Behind right luggage compartment lining-arrow-

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Designation of connector:

A -	Parking aid control unit -J446-

B -	16-pin connector, on parking aid control unit -T16z-

C -	12-pin connector, on parking aid control unit -T12ka-