VW GOLF 2004 — 1.6l petrol engine, BFQ . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW GOLF 2004 - Battery - Starter - Alternator - Voltage regulator - Fuse 5 (30) - in battery fuse holder

A	Battery
B	Starter
C	Alternator
C1	Voltage regulator
D	Ignition/starter switch
J59	X-contact relief relay
J226	Starter inhibitor and reversing light relay
S162	Fuse 1 (30), in battery fuse holder
S163	Fuse 2 (30), in battery fuse holder
S176	Fuse 4 (30), in battery fuse holder
S177	Fuse 5 (30), in battery fuse holder
T2e	2-pin connector
T6	6-pin connector
500	Threaded connection 1 (30), on relay plate
502	Threaded connection 1 (30a) on relay plate
D97	Connection (50), in engine compartment right wiring harness
*	According to equipment
*2	Only models with automatic gearbox
*3	Only models with manual gearbox

Wiring Diagram VW GOLF 2004 - Current supply relay for Simos control unit

D	Ignition/starter switch
J363	Current supply relay for Simos control unit
S229	Fuse 29 in fuse holder
S231	Fuse 31 in fuse holder
S237	Fuse 37 in fuse holder
T6	6-pin connector
T17a	17-pin connector
501	Threaded connection 2 (30), on relay plate
A2	Positive connection (15), in dash panel wiring harness
A32	Positive connection (30), in dash panel wiring harness
A98	Positive connection 4 (30), in dash panel wiring harness
A104	Positive connection 2 (15), in dash panel wiring harness
D51	Positive connection 1 (15), in engine compartment wiring harness
*	According to equipment

Wiring Diagram VW GOLF 2004 - Throttle valve drive for electric throttle - Throttle valve drive angle sender 1 for electric throttle - Throttle valve drive angle sender 2 for electric throttle - Throttle valve module - Simos control unit - Ignition transformer - Spark plug connector - Spark plugs

G186	Throttle valve drive for electric throttle
G187	Throttle valve drive angle sender 1 for electric throttle
G188	Throttle valve drive angle sender 2 for electric throttle
J338	Throttle valve module
J361	Simos control unit
N152	Ignition transformer
P	Spark plug connector
Q	Spark plugs
T4a	4-pin connector
T6a	6-pin connector
T10w	10-pin connector
T121	121-pin connector
D51	Positive connection 1 (15), in engine compartment wiring harness

Wiring Diagram VW GOLF 2004 - Power assisted steering pressure switch - Coolant temperature display sender - Engine speed sender - Knock sensor 1 - Coolant temperature sender - Simos control unit

F88	Power assisted steering pressure switch
G2	Coolant temperature display sender
G28	Engine speed sender
G61	Knock sensor 1
G62	Coolant temperature sender
J361	Simos control unit
T3	3-pin connector
T3a	3-pin connector
T17a	17-pin connector
T121	121-pin connector

Wiring Diagram VW GOLF 2004 - Map-controlled engine cooling system thermostat - Hall sender - Exhaust gas recirculation potentiometer - Simos control unit - Exhaust gas recirculation valve - Variable intake manifold changeover valve

F265	Map-controlled engine cooling system thermostat
G40	Hall sender
G212	Exhaust gas recirculation potentiometer
J217	Automatic gearbox control unit
J361	Simos control unit
N18	Exhaust gas recirculation valve
N156	Variable intake manifold changeover valve
T2a	2-pin connector
T3b	3-pin connector
T6d	6-pin connector
T10	10-pin connector
T68	68-pin connector
T121	121-pin connector
D101	Connection 1 in engine compartment wiring harness
*	Connection for air conditioning system
*2	Connection for radiator fan control unit
*3	Only models with automatic gearbox

Wiring Diagram VW GOLF 2004 - Simos control unit

J104	ABS control unit
J217	Automatic gearbox control unit
J361	Simos control unit
T10w	10-pin connector
T47a	47-pin connector
T68	68-pin connector
T121	121-pin connector
131	Earth connection 2, in engine compartment wiring harness
608	Earth point, central in plenum chamber
A121	Connection (high bus), in dash panel wiring harness
A122	Connection (low bus), in dash panel wiring harness
*	Only models with automatic gearbox

Wiring Diagram VW GOLF 2004 - Simos control unit - Injector - cylinder 1 - Injector - cylinder 2 - Injector - cylinder 3 - Injector - cylinder 4

J361	Simos control unit
N30	Injector, cylinder 1
N31	Injector, cylinder 2
N32	Injector, cylinder 3
N33	Injector, cylinder 4
S232	Fuse 32 in fuse holder
T10	10-pin connector
T10d	10-pin connector
T17a	17-pin connector
T121	121-pin connector
A101	Connection 3 (87) in dash panel wiring harness
D95	Connection (injectors), in engine compartment wiring harness
*	Connection for radiator fan control unit

Wiring Diagram VW GOLF 2004 - Accelerator position sender - Radiator outlet coolant temperature sender - Accelerator position sender 2 - Potentiometer for temperature selection rotary knob - Simos control unit

G79	Accelerator position sender
G83	Radiator outlet coolant temperature sender
G185	Accelerator position sender 2
G267	Potentiometer for temperature selection rotary knob
J361	Simos control unit
T5	5-pin connector
T6b	6-pin connector
T8f	8-pin connector
T10d	10-pin connector
T10h	10-pin connector
T121	121-pin connector

Wiring Diagram VW GOLF 2004 - Lambda probe - Air mass meter - Simos control unit

G39	Lambda probe
G70	Air mass meter
J361	Simos control unit
T6c	6-pin connector
T121	121-pin connector
E30	Connection (87a), in engine wiring harness

Wiring Diagram VW GOLF 2004 - Simos control unit - Engine speed governor control unit - Vacuum pump for brakes

J361	Simos control unit
J542	Engine speed governor control unit
S283	Brake vacuum pump fuse
T6k	6-pin connector
T10	10-pin connector
T10g	10-pin connector
T121	121-pin connector
V192	Vacuum pump for brakes
B157	Positive connection 3 (15a), in interior wiring harness
E30	Connection (87a), in engine wiring harness
U8	Positive connection (15a), in automatic gearbox wiring harness
*	According to equipment
*2	Only models with automatic gearbox
*3	Cross section depends on equipment
*4	Wiring colour depends on equipment

Wiring Diagram VW GOLF 2004 - Brake pedal switch - Secondary air pump relay - Simos control unit - Activated charcoal filter solenoid valve 1 - Secondary air pump motor

F	Brake light switch
F47	Brake pedal switch
J299	Secondary air pump relay
J361	Simos control unit
N80	Activated charcoal filter solenoid valve 1
S13	Fuse 13 in fuse holder
T10e	10-pin connector
T121	121-pin connector
V101	Secondary air pump motor
609	Earth point, on right in plenum chamber
A18	Connection (54), in dash panel wiring harness
A20	Positive connection (15a), in dash panel wiring harness
D103	Connection 3 in engine compartment wiring harness
E30	Connection (87a), in engine wiring harness

Wiring Diagram VW GOLF 2004 - Cruise control system switch - Cruise control system (CCS) SET button - Clutch pedal switch - Simos control unit

E45	Cruise control system switch
E227	Cruise control system (CCS) SET button
F36	Clutch pedal switch
J361	Simos control unit
T4q	4-pin connector
T10e	10-pin connector
T10s	10-pin connector
T10w	10-pin connector
T121	121-pin connector
A20	Positive connection (15a), in dash panel wiring harness
E30	Connection (87a), in engine wiring harness
*	Only models with cruise control system
*2	Only models with manual gearbox

Wiring Diagram VW GOLF 2004 - Lambda probe after catalytic converter - Fuel pump relay - Simos control unit

G130	Lambda probe after catalytic converter
J17	Fuel pump relay
J225	Loudspeaker current supply relay
J234	Airbag control unit
J361	Simos control unit
T4b	4-pin connector
T6	6-pin connector
T10	10-pin connector
T16b	16-pin connector
T17a	17-pin connector
T75	75-pin connector
T121	121-pin connector
A27	Connection (speed signal), in dash panel wiring harness
A125	Connection (crash signal), in dash panel wiring harness
E30	Connection (87a), in engine wiring harness
*	Only models with Climatronic

Wiring Diagram VW GOLF 2004 - Fuel gauge sender - Fuel system pressurisation pump - Coolant shortage indicator sender - Heater element for crankcase breather

G	Fuel gauge sender
G6	Fuel system pressurisation pump
G32	Coolant shortage indicator sender
N79	Heater element for crankcase breather
S228	Fuse 28 in fuse holder
S234	Fuse 34 in fuse holder
S243	Fuse 43 in fuse holder
T6	6-pin connector
T17a	17-pin connector
42	Earth point, next to steering column
49	Earth point, near ...
135	Earth connection 2, in dash panel wiring harness
269	Earth connection (sender earth) 1, in dash panel wiring harness
504	Threaded connection 1 (87), on relay plate
A27	Connection (speed signal), in dash panel wiring harness
A99	Connection 1 (87) in dash panel wiring harness
A100	Connection 2 (87) in dash panel wiring harness
E30	Connection (87a), in engine wiring harness
*	Only models with crankcase breather heater element

Wiring Diagram VW GOLF 2004 - Oil pressure switch - Speedometer sender - Oil level and oil temperature sender - Control unit in dash panel insert

F1	Oil pressure switch
G22	Speedometer sender
G266	Oil level and oil temperature sender
J285	Control unit in dash panel insert
K3	Oil pressure warning lamp
K28	Coolant temperature and coolant shortage warning lamp
K38	Oil level warning lamp
S5	Fuse 5 in fuse holder
S7	Fuse 7 in fuse holder
T17a	17-pin connector
T32	32-pin connector
T32a	32-pin connector
85	Earth connection 1, in engine compartment wiring harness
608	Earth point, central in plenum chamber
A27	Connection (speed signal), in dash panel wiring harness
B163	Positive connection 1 (15), in interior wiring harness
*	Cross section depends on equipment

Wiring Diagram VW GOLF 2004 - Control unit in dash panel insert

G1	Fuel gauge
G3	Coolant temperature gauge
G5	Rev. counter
G21	Speedometer
H3	Buzzer and gong
J285	Control unit in dash panel insert
K2	Alternator warning lamp
K105	Reserve fuel warning lamp
T12a	12-pin connector
T32	32-pin connector
A13	Connection (door contact switch), in dash panel wiring harness
A27	Connection (speed signal), in dash panel wiring harness

Wiring Diagram VW GOLF 2004 - Multifunction display call-up button - Multifunction display memory switch - Ambient temperature sensor - Control unit in dash panel insert

E86	Multifunction display call-up button
E109	Multifunction display memory switch
G17	Ambient temperature sensor
J119	Multifunction indicator
J255	Climatronic control unit
J285	Control unit in dash panel insert
J533	Data bus diagnostic interface
K31	Cruise control system warning lamp
K83	Exhaust emissions warning lamp
K132	Electronic power control fault lamp
T6e	6-pin connector
T12a	12-pin connector
T16	16-pin connector
T20	20-pin connector
T32	32-pin connector
T32a	32-pin connector
U31	Diagnostic connection
A76	Connection (K-diagnosis wire), in dash panel wiring harness
*	Only models with no Climatronic
*2	Only models with Climatronic