Mercedes-Benz C220 1994 - ELECTRICAL COMPONENT LOCATOR 1994 ELECTRICAL COMPONENT LOCATION MERCEDES-BENZ Electrical Components

Mercedes-Benz C220 1994 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz C220 1994 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
ASR Charging Pump Relay	In fuse/relay box. See Fig. 1.
Auxiliary Fan Relay (Stage 1)	In fuse/relay box. See Fig. 1.
Auxiliary Fan Relay (Stage 2)	In fuse/relay box. See Fig. 1.
Combination Relay (Turn/Hazard, Heated Rear Window, Wiper Motor)	In fuse/relay box. See Fig. 1.
Convenience Relay	Right rear side of luggage compartment.
Fanfare Horn Relay	In fuse/relay box. See Fig. 1.
Fuel Pump Relay	In rear of luggage compartment. See Fig. 2.
Headlight Washer Relay	In fuse/relay box. See Fig. 1.
Kickdown Cutout Relay	In luggage compartment.
Light Failure Monitoring Relay	In fuse/relay box. See Fig. 1.
Overvoltage Protection Relay (ABS)	Right rear corner of engine compartment. See Fig. 2.
Oxygen Sensor Relay (View)	In fuse/relay box. See Fig. 1.
Oxygen Sensor Relay (Location)	In fuse/relay box. See Fig. 2.
Power Seat Relay	In luggage compartment.
Secondary Air Injection Relay (View)	In fuse/relay box. See Fig. 1.
Secondary Air Injection Relay (Location)	In fuse/relay box. See Fig. 2.
Sliding/Pop-Up Roof Relay	Under front roof frame, next to dome light.
Starter Lockout Relay	Next to park brake pedal.

Mercedes-Benz C220 1994 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Auxiliary Fuse Box	In luggage compartment, next to battery.
Fuse/Relay Box	Left rear corner of engine compartment. See Fig. 1.

Mercedes-Benz C220 1994 CONTROL UNITS LOCATION

Component	Location
ABS/ASR Control Module (C280)	Right rear corner of engine compartment.
ABS Control Module	Right rear corner of engine compartment.
ABS Hydraulic Unit	Left front side of engine compartment.
Anti-Theft Alarm Control Module	In center of luggage compartment.
Automatic Locking Differential Control Module (C220)	In luggage compartment.
Central Locking Control Module	Right rear corner of luggage compartment.
Convenience Control Module (Power Windows, Sliding/Pop-Up Roof)	In luggage compartment, next to battery.
Cruise Control/Idle Speed Control Module (C280)	Right rear corner of engine compartment.
Diagnostic Module (OBD II)	Right side under dash. See Fig. 3.
Engine Control Module (HFM-SFI)	Right rear corner of engine compartment. See Fig. 2.
Front Seat Heater Control Module	Right side under dash.
SRS Control Module	In center console.
Warning Module (Seatbelt/Keys/Lights)	Left side under dash.

Mercedes-Benz C220 1994 SENDING UNITS & SENSORS LOCATION

Component	Location
Camshaft Position Sensor	Top front of engine. See Fig. 4.
Crankshaft Position Sensor	Left rear of engine. See Fig. 4.
Diagnostic Module Pressure Sensor	Left side of engine compartment. See Fig. 3.
ECT Sensor (A/C)	Left front of engine compartment.
Engine Coolant Temperature Sensor	Top front of engine. See Fig. 4.
Fuel Level Sensors	In each fuel tank chamber.
Hot Film Mass Airflow Sensor	Right rear of engine. See Fig. 5 & Fig. 6 .
In-Car Temperature Sensor	In dome light assembly.
Intake Air Temperature (IAT) Sensor	Center rear of engine. See Fig. 4, Fig. 6 & Fig. 7 .
Knock Sensors	Left side of engine. See Fig. 4.
Outside Temperature Sensor	Right rear corner of engine
Oxygen Sensor 1 (Before TWC)	Right rear of engine compartment. See Fig. 5 - Fig. 7 .
Oxygen Sensor 2 (After TWC)	In exhaust pipe. See Fig. 6 & Fig. 7 .
Refrigerant Pressure Sensor	On the receiver-drier.

Mercedes-Benz C220 1994 MOTORS LOCATION

Component	Location
ABS Charging Pump	Left front wheelhousing.
Idle Speed Control Actuator (C220)	Top left rear of engine. See Fig. 4.
Secondary Air Injection Pump	Bottom right front of engine. See Fig. 5.
Sliding/Pop-Up Roof Motor	Under front roof frame, next to dome light.

Mercedes-Benz C220 1994 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
Adjustable Camshaft Timing Solenoids	Top front of engine. See Fig. 4.
EGR Switchover Valve (C220)	Top front of engine. See Fig. 5.
Purge Control Valve	Left front of engine compartment. See Fig. 6 & Fig. 7 .
Purge-Flow Switchover Valve	Left side of engine compartment. See Fig. 3.
Secondary Air Injection (AIR) Pump Switchover Valve	Top right front of engine. See Fig. 5.
Upshift Delay Switchover Valve	Right rear of engine compartment. See Fig. 2.

Mercedes-Benz C220 1994 SWITCHES LOCATION

Component	Location
Starter Lockout/Back-Up Light Switch	On transmission. See Fig. 4.

Mercedes-Benz C220 1994 MISCELLANEOUS LOCATION

Component	Location
Cruise Control Amplifier Reference Resistor (C220)	Right rear corner of engine compartment.
DLC Connector (DTC Readout)	Right rear corner of engine compartment. See Fig. 2.
Ignition Coil 1	Left rear side of engine. See Fig. 4.
Ignition Coil 2	Left rear side of engine. See Fig. 4.