Contents Wiring diagrams Section: Electrical Component Locations All sections

Electrical Component Locator: Other BMW 3 series E46

BUZZERS, RELAYS & TIMERS

ComponentComponent Location
ABS Pump Motor Relay, TimedIn front power distribution box. (Схема №12)
ABS RelayIn front power distribution box. (Схема №12)
Blower RelayIn front power distribution box. (Схема №12)
Compressor Control RelayIn front power distribution box. (Схема №12)
Engine Control Module RelayIn front power distribution box. (Схема №12)
Front Foglight RelayIn front power distribution box. (Схема №12)
Fuel Pump RelayIn front power distribution box. (Схема №12)
Hazard Flasher RelayIn front power distribution box. (Схема №12)
High Beam Light RelayOn relay panel, under left side of dash. (Схема №11)
High Speed RelayIn front power distribution box. (Схема №12)
Horn RelayIn front power distribution box. (Схема №12)
Horn Relay (w/Alpine)Behind glove box. (Схема №8)
Low Beam Light RelayIn front power distribution box. (Схема №12)
Normal Speed RelayIn front power distribution box. (Схема №12)
Park Ventilation RelayOn relay panel, under left side of dash. (Схема №11)
Rear Defogger RelayIn front power distribution box. (Схема №12)
Rear Window Blower RelayOn splice panel, under right side of dash. (Схема №14)
Secondary Air Pump RelayIn front power distribution box. (Схема №12)
Spatial Sound RelayBehind left kick panel.
Trunk Lid RelayBehind right side of glove box.
Unloader Relay, Terminal 15On splice panel, under left side of dash. (Схема №13)

BUZZERS, RELAYS & TIMERS

CIRCUIT PROTECTION DEVICES

ComponentComponent Location
ASC DiodeIn front power distribution box.
Auxiliary Fuse BoxLeft side of dash.
Auxiliary Fuse Box (In Luggage Compartment)Behind trim panel, on right side of luggage compartment.
Front Power Distribution BoxIn left rear corner of engine compartment.
FusesIn front power distribution box. (Схема №12)
Relay PanelUnder left side of dash.
Splice PanelUnder left side of dash.
Splice PanelUnder right side of dash.
Uncoupling DiodeIn front power distribution box.

CIRCUIT PROTECTION DEVICES

CONTROL UNITS

ComponentComponent Location
ABS Control Module/Hydraulic UnitOn left rear of engine compartment.
Anti-Theft Control Module (Alpine)Behind glove box. (Схема №8)
Automatic Climate Control ModuleBehind center console. (Схема №10)
Body Electronics Control ModuleBehind glove box. (Схема №8)
Check Control ModuleUnder left side of dash. (Схема №8)
Chime ModuleBelow left side of dash.
Convertible Top Control ModuleOn lower left "C" pillar behind side panel. (Схема №10)
Crash Control ModuleOn relay panel, under left side of dash. (Схема №11)
Cruise Control ModuleUnder right side of dash, behind glove box. (Схема №8)
Day Light Relay ModuleOn relay panel, under left side of dash. (Схема №11)
Electronic Immobilizer Control Module (EWS II)Under right side of dash, behind glove box. (Схема №8)
Engine Control ModuleOn right rear corner of engine compartment. (Схема №8)
Final Stage UnitBehind left side of dash.
On-Board Computer ModuleOn center console. (Схема №10)
Relay ModuleBehind glove box.
Slip Control Module (ABS/ASC)Under right side of dash, behind glove box. (Схема №8)
Sun Roof Control AssemblyUnder roof center panel. (Схема №9)
Supplemental Restraint System Control ModuleUnder rear seat. (Схема №8)
Transmission Control ModuleOn right rear corner of engine compartment. (Схема №8)
Transmitter Module (EWS II)On right side of steering column.
Wiper/Washer ModuleBehind glove box. (Схема №8)
Wiper/Washer Module (Low II)Behind glove box. (Схема №8)

CONTROL UNITS

MOTORS

ComponentComponent Location
Air PumpOn front of engine compartment.
Auxiliary Fan MotorBehind front grille.
Auxiliary Throttle Position Motor (ADS)On front of engine compartment.
Blower MotorOn rear of engine compartment, behind right fresh air intake.
Convertible Top MotorOn left side of luggage compartment.
Convertible Top Storage Lid Lock MotorOn left side of convertible top compartment.
Convertible Top Storage Lid MotorOn left side of luggage compartment.
Cruise Control Actuator (Tempomat)On front left side of engine compartment. (Схема №5)
Fuel PumpBelow right side of rear seat.
Gas Filler Lock MotorOn right rear side of luggage compartment.
Glove Box Lock MotorBehind glove box.
Headlight/Foglight Washer PumpOn front right side of engine compartment, on washer fluid reservoir.
Rear Window BlowerBehind rear seats.
Trunk Lock MotorOn rear of luggage compartment, in liftgate.
Washer PumpOn front right side of engine compartment, on washer fluid reservoir.
Windscreen Cowl Panel Lock MotorBehind front cover, on top of windshield.
Wiper MotorOn rear of engine compartment, below center air intake.

MOTORS

SENDING UNITS & SENSORS

ComponentComponent Location
ABS Pedal Travel SensorOn right side of brake master cylinder.
ABS Speed Sensors (4)On each wheel hub above brake caliper.
Airflow SensorLeft side of engine compartment, near shock tower.
Brake Pad Sensor (Left Front)On left front wheel, above brake caliper.
Brake Pad Sensor (Right Rear)Behind right rear wheel.
Camshaft Position Sensor (Cylinder Identification)On front of engine, below intake manifold. (Схема №2)
Crankshaft Position/RPM SensorOn front of engine, at pulley. (Схема №1)
Dual Temperature Sensor (Coolant Temperature)On right front of engine, below intake manifold. (Схема №2)
Engine Coolant Temperature SensorOn front of engine, below intake manifold.
Evaporator Temperature SensorOn right side of left footwell, left side of plenum.
Fuel Level SensorUnder left side of rear seat.
Fuel Tank Pressure SensorOn right rear wheelwell, in luggage compartment.
Fuel Tank Sensor IIOn top of fuel tank.
Hall Effect Camshaft SensorOn front of engine.
Heat Exchanger Temperature Sensor (2)On center console.
Hot Film Air Mass MeterOn intake fresh air duct from air filter. (Схема №5)
Intake Air Temperature Sensor (318is)Left side of engine compartment, in air cleaner assembly. (Схема №5)
Intake Air Temperature Sensor (323i, 328i & M3)On left side of engine, near oil level stick.
Knock SensorOn top front of engine. (Схема №3)
Oil Temperature SensorOn left side of engine.
On-Board Computer Temperature SensorIn engine compartment, near right headlamp.
Outside Temperature SensorOn rear of engine compartment, behind right fresh air intake.
Oxygen Sensor (2) (318is)Under center of vehicle, forward & rear of catalytic converter.
Oxygen Sensor I (2) (323i, 328i & M3)Under center of vehicle, forward & rear of catalytic converter.
Oxygen Sensor II (2) (323i, 328i & M3)Under center of vehicle, forward & rear of catalytic converter.
Rollover Sensor (Convertible)On lower left "C" pillar behind side panel.
Seat Occupancy DetectorUnder right front seat.
Throttle Position SensorOn throttle body. (Схема №4)
Vehicle Speed SensorUnder rear of vehicle, on differential. (Схема №6)

SENDING UNITS & SENSORS

SOLENOIDS & SOLENOID VALVES

ComponentComponent Location
Carbon Canister ValveIn spare wheelwell.
Exhaust Gas Flap ValveOn left rear side of luggage compartment.
Evaporative Emission ValveOn left side of engine compartment, near shock tower.
Idle Speed Control ValveOn front of engine below intake manifold. (Схема №3)
Intake Air Resonance Changeover ValveOn left rear of engine compartment.
Rollover Protection Actuators (2) (Convertible)Behind rear seats.
Secondary Air Pump ValveOn right side of engine.
Shift LockBelow center console, on right side of gear selector.
Solenoid Valve (Running Losses)Under left center of vehicle.
Transmission Valve UnitOn left side of transmission.
Variable Camshaft Control Valve No. 1On top center of engine.
Water Valve AssemblyOn left rear of engine compartment.

SOLENOIDS & SOLENOID VALVES

SWITCHES

ComponentComponent Location
ASC SwitchIn center console.
Automatic Transmission Range SwitchIn center console, on shifter mechanism.
Brake Fluid Level SwitchIn brake fluid reservoir cap.
Brakelight SwitchOn bracket, above brake pedal.
Convertible Top End Position MicroswitchAt convertible top linkage.
Convertible Top Position MicroswitchAt convertible top linkage.
Convertible Top Storage Lid MicroswitchAt convertible top linkage.
Clutch SwitchOn clutch pedal support bracket.
Dual Temperature SwitchOn right side top of radiator. (Схема №7)
Engine Coolant Level SwitchOn right front side of engine compartment.
Engine Hood SwitchOn right front side of engine compartment.
Jet Heater ThermoswitchOn front left side of engine compartment.
Kickdown SwitchAbove accelerator pedal.
Oil Pressure SwitchOn front of engine, below intake manifold. (Схема №2)
Park Brake SwitchAt base of parking brake lever.
Pressure SwitchOn top of receiver-drier, behind right headlight. (Схема №7)
Reversing Light SwitchOn left side of transmission.
Seat Belt Switch (2)In respective front seat belt buckle.
Trunk Lid MicroswitchUnderside of trunk lid.
Trunk Light SwitchOn left underside of trunk lid.
Washer Fluid Level SwitchOn washer fluid reservoir.
Windscreen Cowl Panel Lock Micro-SwitchAt top of windshield.

SWITCHES

MISCELLANEOUS

ComponentComponent Location
Antenna Amplifier AM/FMOn upper left "C" pillar.
Anti-Theft Horn (Alpine)On front right side of engine compartment.
Battery B+ Start PointOn left rear of engine compartment, in front power distribution box.
B+ Junction PointOn left rear of engine compartment, in front power distribution box.
B+ Jump Start Junction PointOn right rear of engine compartment, in back of shock tower.
Blower ResistorsBehind center of dash.
Data Link Connector (DLC)On right rear of engine compartment.
HIFI Amplifier (Convertible)Below right side of rear seat. (Схема №10)
HIFI Amplifier (Coupe & Sedan)On left side of luggage compartment. (Схема №9)
Pyrotechnical Belt Tensioner (2)On inboard side of driver & passenger seats.
Suppression FilterOn upper right "C" pillar.
Washer Jet Heater (2)On underside of engine hood.

MISCELLANEOUS

CONNECTORS

ComponentComponent Location
X32 (Natural, 12 Pin)Underside of steering column.
X33 (Black, 12 Pin)Behind left footwell trim.
X72 (Natural, 6 Pin)Driver's side footwell.
X113 (Gray, 3 Pin)Right wheelwell.
X114 (Gray, 3 Pin)Left wheelwell.
X118 (Black, 2 Pin)Left wheelwell.
X142 (Gray, 3 Pin)Under rear of vehicle, near differential.
X143 (Gray, 3 Pin)Under rear of vehicle, near differential.
X256 (Black, 26 Pin)Lower right "A" pillar.
X257 (Black, 26 Pin)Lower left "A" pillar.
X295 (Black, 8 Pin)Behind left footwell trim.
X351 (Black, 2 Pin)Right "B" pillar.
X352 (Black, 3 Pin)Left "B" pillar.
X711 (Natural, 1 Pin)In luggage compartment lid.
X713 (Black, 2 Pin)Under rear of vehicle, on differential.
X782 (Orange, 3 Pin)Below right side of dash.
X783 (Black, 3 Pin)Under steering column.
X6203 (Black, 3 Pin)At front of engine, below intake manifold.
X6204 (Black, 3 Pin)At front of engine, below intake manifold.
X6240 (Black, 4 Pin)Near starter.
X13145 (Black, 6 Pin)At left side of luggage compartment.
X18198 (Black, 10 Pin)In passenger's door.

CONNECTORS

GROUNDS

ComponentComponent Location
X165Front left side of engine compartment. (Схема №9)
X173At left kick panel. (Схема №9)
X494Under left front seat.
X495At right kick panel.
X498Under left front seat.
X1165At left kick panel. (Схема №9)
X1166At right kick panel.
X1441Below center console.
X6454Right rear side of engine compartment. (Схема №9)
X6455Left side of engine compartment.
X6456On cylinder head.
X10010At right kick panel.
X10012At right kick panel.
X13004At right "C" pillar.
X13006At left "C" pillar.
X13009At right kick panel.
X13016Below left side of dash. (Схема №9)

GROUNDS