VW TOUAREG 2009 — 4.2 l / 257 kW FSI, engine code BAR . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW TOUAREG 2009 - Starter - alternator - voltage regulator - terminal 50 voltage supply relay - terminal 30 wiring junction - terminal 30 wiring junction 2

B	Starter
C	Alternator
C1	Voltage regulator
E74	Battery master/isolator switch
J518	Entry and start authorisation control unit
J682	Terminal 50 voltage supply relay
S1	Fuses in relay plate fuse holder
S7	Fuses in relay plate fuse holder
S9	Fuses in relay plate fuse holder
T1v	Single connector
T2gd	2-pin connector, black
T6ma	6-pin connector, white, on electronics box engine compartment
T10c	10-pin connector, pink, electronics box engine compartment
T10d	10-pin connector, blue, electronics box engine compartment
T10f	10-pin connector, red, electronics box engine compartment
T81	81-pin connector
TV2	Terminal 30 wiring junction
TV22	Terminal 30 wiring junction 2
U6	Slave start socket
D123	Connection 21, in engine compartment wiring harness
D144	Positive connection 5 (30), in engine compartment wiring harness

Wiring Diagram VW TOUAREG 2009 - Fuses

S2	Fuses in relay plate fuse holder
S3	Fuses in relay plate fuse holder
S10	Fuses in relay plate fuse holder
S12	Fuses in relay plate fuse holder
S13	Fuses in relay plate fuse holder
S14	Fuses in relay plate fuse holder
S15	Fuses in relay plate fuse holder
S16	Fuses in relay plate fuse holder
S17	Fuses in relay plate fuse holder
S18	Fuses in relay plate fuse holder
D121	Connection 19, in engine compartment wiring harness
D123	Connection 21, in engine compartment wiring harness
D144	Positive connection 5 (30), in engine compartment wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - Motronic current supply relay - ignition coils 1 to 3 with output stage - spark plug connector - spark plugs

J271	Motronic current supply relay
J623	Engine control unit
N70	Ignition coil 1 with output stage
N127	Ignition coil 2 with output stage
N291	Ignition coil 3 with output stage
P	Spark plug connector
Q	Spark plugs
T4ca	4-pin connector
T4cb	4-pin connector
T4cc	4-pin connector
T60	60-pin connector
T94	94-pin connector
131	Earth connection 2, in engine compartment wiring harness
132	Earth connection 3, in engine compartment wiring harness
646	Earth point 2, on bulkhead
D50	Positive connection (30), in engine compartment wiring harness
D51	Positive connection 1 (15), in engine compartment wiring harness
D123	Connection 21, in engine compartment wiring harness
D144	Positive connection 5 (30), in engine compartment wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - engine component current supply relay - ignition coils 4 to 6 with output stage - spark plug connector - spark plugs

J623	Engine control unit
J757	Engine component current supply relay
N292	Ignition coil 4 with output stage
N323	Ignition coil 5 with output stage
N324	Ignition coil 6 with output stage
P	Spark plug connector
Q	Spark plugs
T4cd	4-pin connector
T4ce	4-pin connector
T4cf	4-pin connector
T6ma	4-pin connector, white, on electronics box engine compartment
T60	60-pin connector
T94	94-pin connector
18	Earth point on engine block
131	Earth connection 2, in engine compartment wiring harness
132	Earth connection 3, in engine compartment wiring harness
201	Earth connection 5, in engine compartment wiring harness
D51	Positive connection 1 (15), in engine compartment wiring harness
D123	Connection 21, in engine compartment wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - auxiliary heater control unit - ignition coil 7 with output stage - ignition coil 8 with output stage - spark plug connector - spark plugs

J364	Auxiliary heater control unit
J519	Onboard supply control unit
J623	Engine control unit
N325	Ignition coil 7 with output stage
N326	Ignition coil 8 with output stage
P	Spark plug connector
Q	Spark plugs
T4cg	4-pin connector
T4ch	4-pin connector
T10c	10-pin connector, pink, electronics box engine compartment
T18	18-pin connector
T60	60-pin connector
T94	94-pin connector
18	Earth point on engine block
131	Earth connection 2, in engine compartment wiring harness
201	Earth connection 5, in engine compartment wiring harness
D51	Positive connection 1 (15), in engine compartment wiring harness
D101	Connection 1, in engine compartment wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - map-controlled engine cooling system thermostat - inlet camshaft control valve 1 and 2 - exhaust camshaft control valve 1 and 2

F265	Map-controlled engine cooling system thermostat
J623	Engine control unit
N115	Activated charcoal filter system solenoid valve 2
N205	Inlet camshaft control valve 1
N208	Inlet camshaft control valve 2
N318	Exhaust camshaft control valve 1
N319	Exhaust camshaft control valve 2
T2ej	2-pin connector
T2ek	2-pin connector
T2em	2-pin connector
T2eo	2-pin connector
T2fu	2-pin connector
T2ga	2-pin connector
T6ma	6-pin connector, white, on electronics box engine compartment
T10e	10-pin connector, green, electronics box engine compartment
T10ma	10-pin connector, black, electronics box engine compartment
T60	60-pin connector
T94	94-pin connector
E30	Connection (87a), in engine wiring harness
*	not with all levels of equipment

Wiring Diagram VW TOUAREG 2009 - Engine control unit - knock sensor 1 - knock sensor 2 - intake manifold flap motor - variable intake manifold motor

G61	Knock sensor 1
G66	Knock sensor 2
J623	Engine control unit
T3ag	3-pin connector
T3ah	3-pin connector
T3ai	3-pin connector
T3aj	3-pin connector
T60	60-pin connector
V157	Intake manifold flap motor
V183	Variable intake manifold motor
220	Earth connection (sender earth), in engine wiring harness
E30	Connection (87a), in engine wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - engine speed sender - knock sensors 3 - knock sensors 4

G28	Engine speed sender
G198	Knock sensor 3
G199	Knock sensor 4
J623	Engine control unit
T3ak	3-pin connector
T3al	3-pin connector
T3bo	3-pin connector
T60	60-pin connector
220	Earth connection (sender earth), in engine wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - Hall sender - Hall sender 2 - intake manifold flap potentiometer - intake manifold flap 2 potentiometer

G40	Hall sender
G163	Hall sender 2
G336	Intake manifold flap potentiometer
G512	Intake manifold flap 2 potentiometer
J623	Engine control unit
T3be	3-pin connector
T3bf	3-pin connector, black
T3bk	3-pin connector, black
T3bl	3-pin connector
T60	60-pin connector
220	Earth connection (sender earth), in engine wiring harness
327	Earth connection (sender earth), in engine compartment wiring harness
D141	Connection (5V), in engine wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - secondary air pump relay - coolant temperature sender - fuel pressure sender - fuel metering valve - secondary air pump motor

G62	Coolant temperature sender
G247	Fuel pressure sender
J299	Secondary air pump relay
J623	Engine control unit
N290	Fuel metering valve
N402	Fuel metering valve 2
T2ed	2-pin connector
T2gw	2-pin connector, black
T2gz	2-pin connector
T2hd	2-pin connector
T3br	3-pin connector
T10ma	10-pin connector, black, electronics box in engine compartment
T14m	14-pin connector, black
T60	60-pin connector
T94	94-pin connector
V101	Secondary air pump motor
327	Earth connection (sender earth), in engine compartment wiring harness
614	Earth point 2, on right in engine compartment
D116	Connection 14, in engine compartment wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - injector - cylinder 1 - injector - cylinder 2 - injector - cylinder 6 - injector - cylinder 8

J623	Engine control unit
N30	Injector, cylinder 1
N31	Injector, cylinder 2
N84	Injector, cylinder 6
N86	Injector, cylinder 8
T2go	2-pin connector, black
T2gp	2-pin connector, black
T2hu	2-pin connector, black
T2hw	2-pin connector, black
T14m	14-pin connector, black
T14n	14-pin connector, black
T60	60-pin connector
D119	Connection 17, in engine compartment wiring harness
D120	Connection 18, in engine compartment wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - injector - cylinder 3 - injector - cylinder 4 - injector - cylinder 5 - injector - cylinder 7

J623	Engine control unit
N32	Injector, cylinder 3
N33	Injector, cylinder 4
N83	Injector, cylinder 5
N85	Injector, cylinder 7
T2gq	2-pin connector, black
T2gr	2-pin connector, black
T2ht	2-pin connector, black
T2hv	2-pin connector, black
T14m	14-pin connector, black
T14n	14-pin connector, black
T60	60-pin connector
D117	Connection 15, in engine compartment wiring harness
D118	Connection 16, in engine compartment wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - air mass meter - air mass meter 2 - activated charcoal filter system solenoid valve 1

G70	Air mass meter
G246	Air mass meter 2
J623	Engine control unit
N80	Activated charcoal filter system solenoid valve 1
T2gt	2-pin connector
T5m	5-pin connector
T5o	5-pin connector
T10ma	10-pin connector, black, electronics box engine compartment
T94	94-pin connector
D111	Connection 9, in engine compartment wiring harness
D112	Connection 10, in engine compartment wiring harness
D195	Connection 1 (5V), in engine compartment wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - radiator outlet coolant temperature sender - brake servo pressure sensor - Hall sender 3

G83	Radiator outlet coolant temperature sender
G294	Brake servo pressure sensor
G300	Hall sender 3
G410	Fuel pressure sender for low pressure
J623	Engine control unit
T2eh	2-pin connector, black
T3cn	3-pin connector
T3bm	3-pin connector
T4bi	4-pin connector
T10ma	10-pin connector, black, electronics box engine compartment
T94	94-pin connector
D113	Connection 11, in engine compartment wiring harness
D114	Connection 12, in engine compartment wiring harness
D174	Earth connection 2 (5V), in engine wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - throttle valve drive (electric power control) - throttle valve drive angle sender 1 for electric throttle - Hall sender 4 - throttle valve module

G186	Throttle valve drive (electric power control)
G187	Throttle valve drive angle sender 1 for electric throttle
G188	Throttle valve drive angle sender 2 for electric throttle
G301	Hall sender 4
J623	Engine control unit
J338	Throttle valve module
T3bn	3-pin connector
T6bs	6-pin connector
T6ma	6-pin connector, white, on electronics box engine compartment
T10ma	10-pin connector, black, electronics box engine compartment
T60	60-pin connector
T94	94-pin connector
D114	Connection 12, in engine compartment wiring harness
D174	Earth connection 2 (5V), in engine wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - accelerator position sender - accelerator position sender 2

G79	Accelerator position sender
G185	Accelerator position sender 2
J623	Engine control unit
T6t	6-pin connector, black
T10e	10-pin connector, green, electronics box engine compartment
T94	94-pin connector
85	Earth connection 1, in engine compartment wiring harness
646	Earth point 2, on bulkhead

Wiring Diagram VW TOUAREG 2009 - Engine control unit - brake light switch - brake pedal switch - continued coolant circulation relay

F	Brake light switch
F47	Brake pedal switch
J151	Continued coolant circulation relay
J623	Engine control unit
SB26	Fuse 26 on fuse holder B
SB38	Fuse 38 on fuse holder B
T6k	6-pin connector, brown, electronics box engine compartment
T10c	10-pin connector, pink, electronics box engine compartment
T10d	10-pin connector, blue, electronics box engine compartment
T94	94-pin connector
B278	Positive connection 2 (15a), in main wiring harness
B289	Positive connection 13 (15a), in main wiring harness
B335	Connection 1 (54), in main wiring harness
D78	Positive connection 1 (30a), in engine compartment wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - lambda probe - circulation pump - lambda probe 2

G39	Lambda probe
G108	Lambda probe 2
J255	Climatronic control unit
J623	Engine control unit
J708	Residual heat relay
SB2	Fuse 2 on fuse holder B
T2ck	2-pin connector, black
T6mb	6-pin connector, black
T6md	6-pin connector, brown
T14g	14-pin connector, black
T94	94-pin connector
V55	Circulation pump
167	Earth connection 4, in engine compartment wiring harness
201	Earth connection 5, in engine compartment wiring harness
373	Earth connection 8, in main wiring harness
374	Earth connection 9, in main wiring harness
640	Earth point, on left in engine compartment
D115	Connection 13, in engine compartment wiring harness
*	only models with auxiliary heater (plenum)

Wiring Diagram VW TOUAREG 2009 - Engine control unit - lambda probe after catalytic converter - lambda probe 2 after catalytic converter - brake servo relay - vacuum pump for brakes

G130	Lambda probe after catalytic converter
G131	Lambda probe 2 after catalytic converter
J527	Steering column electronics control unit
J569	Brake servo relay
J623	Engine control unit
T2bj	2-pin connector
T4bj	4-pin connector, black
T4bk	4-pin connector, brown
T10d	10-pin connector, blue, electronics box engine compartment
T16a	16-pin connector
T94	94-pin connector
V192	Vacuum pump for brakes
32	Earth point, on left behind dash panel insert
614	Earth point 2, on right in engine compartment
D78	Positive connection 1 (30a), in engine compartment wiring harness
D122	Connection 20, in engine compartment wiring harness

Wiring Diagram VW TOUAREG 2009 - Engine control unit - radiator fan control unit - radiator fan control unit 2 - radiator fan - radiator fan 2 - fuel system diagnostic pump

G65	High pressure sender
J293	Radiator fan control unit
J623	Engine control unit
J671	Radiator fan control unit 2
T3ac	3-pin connector
T4be	4-pin connector
T4bf	4-pin connector
T10c	10-pin connector, pink, electronics box engine compartment
T10d	10-pin connector, blue, electronics box engine compartment
T10e	10-pin connector, green, electronics box engine compartment
T94	94-pin connector
V7	Radiator fan
V144	Fuel system diagnostic pump
V177	Radiator fan 2
12	Earth point, on left in engine compartment
E7	Connection (87a), in Motronic wiring harness
B385	Connection 3 (drive train CAN bus, high), in main wiring harness
B392	Connection 3 (drive train CAN bus, low), in main wiring harness
*	not with all levels of equipment

Wiring Diagram VW TOUAREG 2009 - Control unit in dash panel insert - fuel pump control unit - fuel gauge sender - coolant shortage indicator sender - fuel gauge sender 2 - fuel system pressurisation pump

G	Fuel gauge sender
G6	Fuel system pressurisation pump
G32	Coolant shortage indicator sender
G169	Fuel gauge sender 2
J285	Control unit in dash panel insert
J538	Fuel pump control unit
K	Dash panel insert
T2c	2-pin connector, black
T4ct	4-pin connector
T4cu	4-pin connector
T5x	5-pin connector
T4af	4-pin connector, black, tank connection left
T5k	5-pin connector, black, right tank connection
T10c	10-pin connector, pink, electronics box engine compartment
T32a	32-pin connector, blue
39	Earth point, under rear left seat
238	Earth connection 1, in interior wiring harness
410	Earth connection 1 (sender earth), in main wiring harness
B584	Positive connection 1 (87a), in interior wiring harness

Wiring Diagram VW TOUAREG 2009 - Control unit in dash panel insert - oil pressure switch - oil level and oil temperature sender - self-diagnosis connection

F1	Oil pressure switch
G266	Oil level and oil temperature sender
J285	Control unit in dash panel insert
K	Dash panel insert
T1ac	Single connector
T3bd	3-pin connector
T6ma	6-pin connector, white, on electronics box engine compartment
T10d	10-pin connector, blue, electronics box engine compartment
T10f	10-pin connector, red, electronics box engine compartment
T14n	14-pin connector, black
T16b	16-pin connector, self-diagnosis connection, driver footwell
T32a	32-pin connector, blue
T32b	32-pin connector, green
32	Earth point, on left behind dash panel insert
B344	Connection 1 (61), in main wiring harness
B385	Connection 3 (drive train CAN bus, high), in main wiring harness
B392	Connection 3 (drive train CAN bus, low), in main wiring harness
B444	Connection 1 (diagnosis), in main wiring harness
B509	Connection 3 (diagnosis), in main wiring harness
D108	Connection 6, in engine compartment wiring harness