AUDI A4 2002 – 1.6 litre – Simos, 75 kW, 4-cylinder, engine code ALZ . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A4 2002 - Battery - starter - alternator

A	Battery
B	Starter
C	Alternator
C1	Voltage regulator
D	Ignition/starter switch
T1k	Single connector, black, in engine compartment, right
T2at	2-pin connector, black, in engine compartment, right
T10	10-pin connector, brown, connector point, electronics box, plenum chamber
T10m	10-pin connector, black, connector point, electronics box, plenum chamber
11	Earth point, in battery box
12	Earth point, in engine compartment, left
83	Earth connection -1-, in front right wiring harness
A17	Connection (61), in dash panel wiring harness
A86	Connection (50a), in dash panel wiring harness

Wiring Diagram AUDI A4 2002 - Simos control unit - fuel pump relay - air mass meter - injectors

G70	Air mass meter
J17	Fuel pump relay
J361	Simos control unit
N30	Injector, cylinder 1
N31	Injector, cylinder 2
N32	Injector, cylinder 3
N33	Injector, cylinder 4
N80	Activated charcoal filter system solenoid valve 1
N112	Secondary air inlet valve
N156	Intake manifold change-over valve
S228	Fuse in fuse box
S232	Fuse in fuse box
S234	Fuse in fuse box
T10	10-pin connector, brown, connector point, electronics box, plenum chamber
T10m	10-pin connector, black, connector point, electronics box, plenum chamber
T10ar	10-pin connector, orange, connector point, electronics box, plenum chamber
A20	Connection (15a), in dash panel wiring harness
A152	Connection -5- (87), in dash panel wiring harness
D22	Connection (via fuse 234), in front right wiring harness
D95	Connection (injectors), in engine compartment wiring harness

Wiring Diagram AUDI A4 2002 - Simos control unit - coolant temperature senders - Hall sender - knock sensor I

E87	Control and display unit for air conditioner
G2	Coolant temperature sender
G40	Hall sender
G61	Knock sensor I
G62	Coolant temperature sender
J361	Simos control unit
T3o	3-pin connector, green, in engine compartment, left
T15m	15-pin connector, red, connector point, electronics box, plenum chamber
A100	Connection -2- (87), in dash panel wiring harness
A105	Connection -2- (rpm boost), in dash panel wiring harness
A121	Connection (high bus), in dash panel wiring harness
A122	Connection (low bus), in dash panel wiring harness
*	Only models with air conditioner
•	Data bus wire (CAN bus)

Wiring Diagram AUDI A4 2002 - Simos control unit - lambda probe - lambda probe downstream of catalytic converter - cruise control system switch

E45	Cruise control system switch
G39	Lambda probe
G130	Lambda probe downstream of catalytic converter
J361	Simos control unit
T4v	4-pin connector, brown, in engine compartment, left
T4z	4-pin connector, black, in engine compartment, left
T6y	6-pin connector, black, next to steering column
T10m	10-pin connector, black, connector point, electronics box, plenum chamber
T15	15-pin connector, white, connector point, electronics box, plenum chamber
Z19	Lambda probe heater
Z29	Lambda probe 1 heater, downstream of catalytic converter
83	Earth connection -1-, in front right wiring harness
A45	Connection (engine speed signal), in dash panel wiring harness
*	Only models with cruise control system

Wiring Diagram AUDI A4 2002 - Simos control unit - brake light switch - throttle valve control unit - clutch pedal switch - secondary air pump motor

F	Brake light switch
F36	Clutch pedal switch
J234	Airbag control unit
J299	Secondary air pump relay
J338	Throttle valve control unit
J361	Simos control unit
S130	Secondary air pump fuse
T3aa	3-pin connector, white, connector point, electronics box, plenum chamber
T3au	3-pin connector, red, connector point, electronics box, plenum chamber
T10	10-pin connector, brown, connector point, electronics box, plenum chamber
T15	15-pin connector, white, connector point, electronics box, plenum chamber
V101	Secondary air pump motor
12	Earth point, in engine compartment, left
A18	Connection (54), in dash panel wiring harness
A27	Connection (speed signal), in dash panel wiring harness
A104	Positive (+) connection -2- (15), in dash panel wiring harness
A106	Connection -2- (86s), in dash panel wiring harness
A125	Connection (crash signal), in dash panel wiring harness
*	Does not apply to automatic gearbox

Wiring Diagram AUDI A4 2002 - Simos control unit - accelerator pedal position senders - engine speed sender - current supply relay for Simos control unit - exhaust gas recirculation valve

G28	Engine speed sender
G79	Accelerator pedal position sender
G185	Accelerator pedal position sender -2-
G212	Exhaust gas recirculation potentiometer
J361	Simos control unit
J363	Current supply relay for Simos control unit
N18	Exhaust gas recirculation valve
T3m	3-pin connector, grey, in engine compartment, left
T3aa	3-pin connector, white, connector point, electronics box, in plenum chamber
T6as	6-pin connector, black, near accelerator pedal position sender
T10m	10-pin connector, black, connector point, electronics box, in plenum chamber
T15	15-pin connector, white, connector point, electronics box, in plenum chamber
83	Earth connection -1-, in front right wiring harness
D52	Positive (+) connection (15a), in engine compartment wiring harness
*	Applicable up to model year 2001
**	Applicable from model year 2002
***	Applicable up to model year 2000
****	Applicable from model year 2001 (phased-in modification)

Wiring Diagram AUDI A4 2002 - Simos control unit - ignition coil

J361	Simos control unit
N	Ignition coil
N122	Final output stage
N128	Ignition coil 2
P	Spark plug connector
Q	Spark plugs
S5	Fuse in fuse box/relay plate
S7	Fuse in fuse box/relay plate
S13	Fuse in fuse box/relay plate
S229	Fuse in fuse box
S243	Fuse in fuse box
T4l	4-pin connector, black, on ignition coil
T10ar	10-pin connector, orange, connector point, electronics box, plenum chamber
12	Earth point, in engine compartment, left
A2	Positive (+) connection (15), in dash panel wiring harness
A32	Positive (+) connection (30), in dash panel wiring harness
A40	Positive (+) connection -1- (30), in dash panel wiring harness
A151	Connection -4- (87), in dash panel wiring harness
D23	Connection (via fuse 229), in front right wiring harness

Wiring Diagram AUDI A4 2002 - Dash panel insert - coolant shortage indicator switch - fuel gauge sender - fuel pump - diagnostic connector

F66	Coolant shortage indicator switch
G	Fuel gauge sender
G6	Fuel pump
J218	Combi-processor in dash panel insert
T6e	6-pin connector, blue, left connector point, A pillar
T10a	10-pin connector, brown, left connector point, A pillar
T10m	10-pin connector, black, connector point, electronics box, plenum chamber
T10ao	10-pin connector, white, left connector point, A pillar
T16	16-pin connector, diagnostic connector
T32	32-pin connector, blue, on dash panel insert
T32a	32-pin connector, green, on dash panel insert
86	Earth connection -1-, in rear wiring harness
139	Earth connection (sender earth), in Motronic wiring harness
269	Earth connection (sender earth) -1-, in dash panel wiring harness
A76	Connection (diagnosis wire K), in dash panel wiring harness
*	Output for signal earth

Wiring Diagram AUDI A4 2002 - Dash panel insert - warning lamps - speedometer sender - oil pressure switch - oil level/oil temperature sender

F1	Oil pressure switch
G22	Speedometer sender
G266	Oil level/oil temperature sender
J218	Combi-processor in dash panel insert
K2	Alternator warning lamp
K132	Electronic power control fault lamp
K149	Engine electronics warning lamp
T10	10-pin connector, brown, connector point, electronics box, plenum chamber
T10m	10-pin connector, black, connector point, electronics box, plenum chamber
T32	32-pin connector, blue, on dash panel insert
T32a	32-pin connector, green, on dash panel insert
83	Earth connection -1-, in front right wiring harness
A74	Connection (15a, fuse 5), in dash panel wiring harness
*	Applicable up to model year 2000
**	Applicable from model year 2001