AUDI A3 2002 – Audi A3 (1.9 turbo-diesel, 66 kW, TDI, 4-cylinder), engine codes AGR . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A3 2002 - Battery - starter - alternator - main fuse box/battery

A	Battery
B	Starter
C	Alternator
C1	Voltage regulator
D	Ignition/starter switch
F18	Radiator fan thermo-switch
F54	Radiator fan thermo-switch
J104	ABS with EDL control unit
K2	Alternator warning lamp
S131	Fuse 1
S132	Fuse 2
S133	Fuse 3
S134	Fuse 4
S138	Fuse 5
S162	1 in fuse box/battery
S163	2 in fuse box/battery
S164	3 in fuse box/battery
T2f	2-pin connector, wiring duct, in engine compartment, left
T3e	3-pin connector, black, on main fuse box/battery
T4b	4-pin connector, in engine compartment, left
T6	6-pin connector, red, in plenum chamber
T32	32-pin connector, blue, on dash panel insert
2	Earth strap, gearbox - body
12	Earth point, in engine compartment, left
A17	Positive (+) connection (61), in dash panel wiring harness
*	Only for heated pin heating (manual gearbox)
**	Only models with automatic gearbox

J52	Glow plug relay
J248	Diesel direct injection system control unit
J359	Low heat output relay
J360	High heat output relay
N18	Exhaust gas recirculation valve
N75	Charge pressure control solenoid valve
Q6	Glow plugs (engine)
Q7	Glow plugs (coolant)
T6	6-pin connector, red, in plenum chamber
T10	10-pin connector, white, in plenum chamber
156	Earth connection, in diesel direct injection wiring harness
220	Earth connection (sender earth), in engine wiring harness
D78	Positive (+) connection -1- (30a), in engine compartment wiring harness
D101	Connection -1-, in engine compartment wiring harness
F32	Connection (glow plugs - coolant), in diesel direct injection system wiring harness
*	Only for heated pin heating (manual gearbox)

F8	Kick-down switch
F60	Idling switch
G28	Engine speed sender
G70	Air mass meter
G71	Intake manifold pressure sender
G72	Intake manifold temperature sender
G79	Accelerator pedal position sender
G80	Needle lift sender
J248	Diesel direct injection system control unit
J322	Diesel direct injection system relay
T3d	3-pin connector, black, in engine compartment
T6	6-pin connector, red, in plenum chamber
T10	10-pin connector, white, in plenum chamber
T10c	10-pin connector, black, wiring duct, in engine compartment, left
T10e	10-pin connector, black, in plenum chamber
T10g	10-pin connector, blue, in plenum chamber
10	Earth point, in plenum chamber
156	Earth connection, in diesel direct injection wiring harness
220	Earth connection (sender earth), in engine wiring harness
280	Earth connection -2-, in engine compartment wiring harness
B156	Positive (+) connection -4- (30), in interior wiring harness
F27	Connection (screening), in diesel direct injection system wiring harness
*	Only models with automatic gearbox

G2	Coolant temperature sender
G62	Coolant temperature sender
G81	Fuel temperature sender
G149	Modulating piston movement sender
J217	Automatic gearbox control unit
J248	Diesel direct injection system control unit
N108	Commencement of injection valve
N109	Fuel shut-off valve
N146	Metering adjuster
T6	6-pin connector, red, in plenum chamber
T10	10-pin connector, white, in plenum chamber
T10c	10-pin connector, black, wiring duct, in engine compartment, left
T10h	10-pin connector, black, centre in engine compartment
10	Earth point, in plenum chamber
85	Earth connection -1-, in engine compartment wiring harness
281	Earth connection -1-, in engine prewiring wiring harness
A100	Connection -2- (87), in dash panel wiring harness
F25	Connection -1-, in diesel direct injection system wiring harness
*	Only models with automatic gearbox

E45	Cruise control system switch
J248	Diesel direct injection system control unit
T7	7-pin connector, behind steering column switch trim
T10	10-pin connector, white, in plenum chamber
T10b	10-pin connector, grey, in plenum chamber
T10e	10-pin connector, black, in plenum chamber
156	Earth connection, in diesel direct injection wiring harness
B135	Positive (+) connection (15a), in interior wiring harness
D102	Connection -2-, in engine compartment wiring harness
D103	Connection -3-, in engine compartment wiring harness
*	-Only models with cruise control system
**	-Only models with cruise control system with automatic gearbox
***	-Only models with cruise control system with manual gearbox
****	-Does not apply to models with heated pin heating
*****	Only for heated pin heating (manual gearbox)

F36	Clutch pedal switch
F47	Brake pedal switch for diesel direct inj. system
J248	Diesel direct injection system control unit
N79	Heater element (crankcase breather)
T10g	10-pin connector, blue, in plenum chamber
156	Earth connection, in diesel direct injection wiring harness
B131	Connection (54), in interior wiring harness
B148	Positive (+) connection -3- (87), in interior wiring harness
*	Only models with manual gearbox
**	Only for heated pin heating (manual gearbox) and export versions (nordic countries)

D	Ignition/starter switch
G	Fuel gauge sender
G22	Speedometer sender (Hall sender, on gearbox)
J218	Combi-processor in dash panel insert
K29	Glow period warning lamp
T10c	10-pin connector, black, wiring duct, in engine compartment, left
T32	32-pin connector, blue, on dash panel insert
T32a	32-pin connector, green, on dash panel insert
278	Earth connection -4-, in interior wiring harness
281	Earth connection -1-, in engine prewiring wiring harness
A2	Positive (+) connection (15), in dash panel wiring harness
A15	Positive (+) connection (15), in dash panel wiring harness
B146	Positive (+) connection -1- (87), in interior wiring harness