Mercedes-Benz 560SEL 1991 - ELECTRICAL COMPONENT LOCATOR 1991 MERCEDES-BENZ Electrical Components

Mercedes-Benz 560SEL 1991 - BUZZERS, RELAYS & TIMERS

Mercedes-Benz 560SEL 1991 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C Compressor Delay Relay	In fuse/relay block.
Air Injection Management Relay	In fuse/relay block.
Antenna Motor Relay	At left rear wheelwell, in motor housing.
Auxiliary Fan High-Speed Relay	On center of firewall.
Auxiliary Fan Low-Speed Relay	On center of firewall.
Dome Light Delay Relay	In front dome light assembly.
Fuel Pump Relay	On left rear side of engine compartment. See Fig. 1 .
Overvoltage Protection Relay (ABS)	On left side of firewall. See Fig. 1 .
Oxygen Sensor Protection Relay	In fuse/relay block.
Power Seat Control Relays	In fuse/relay block.
Power Window Relay	In fuse/relay block.
Rear Defogger Time Relay	In fuse/relay block.
Seat Belt Warning Relay	On left side of driver's footwell.
Seat Heater Relays	Under front seats, on air duct.
Turn Signal/Hazard Flasher Relay	Behind instrument cluster.
Wiper Interval Control Relay	In fuse/relay block.

Mercedes-Benz 560SEL 1991 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Fuse/Relay Block	On left rear corner of engine compartment.

Mercedes-Benz 560SEL 1991 CONTROL UNITS LOCATION

Component	Location
ABS Electronic Control Unit	On center of firewall.
A/C Compressor Control Unit	To right of brake fluid reservoir.
A/C Control Unit	Above right side of passenger's footwell.
Anti-Theft Control Unit	Under passenger's footwell.
CIS-E Control Unit	Behind right kick panel. See Fig. 1 .
Cruise Control Unit	Above right side of passenger's footwell.
Idle Speed Control Unit	Under passenger's footwell. See Fig. 1 .
Seat Adjustment Control Unit	Under both front seats.
Seat Back Warning Module	On left side of driver's footwell.
Seat Belt Modules	Behind rear seat side panels.
SRS (Air Bag) Control Unit	Behind console, below radio.

Mercedes-Benz 560SEL 1991 SENDING UNITS & SENSORS LOCATION

Component	Location
A/C In-Car Temperature Sensor	In overhead roof panel.
A/C Temperature Sensor	In A/C evaporator assembly.
ABS Speed Sensors	On each front axle and on rear axle housing.
Airflow Sensor	On top of engine, just right of fuel distributor.
Brake Fluid Level Sensor	In brake fluid reservoir.
Coolant Temperature Sensor	On top of engine, in front of throttle body. See Fig. 1 .
EGR Temperature Sensor	On left rear corner of left cylinder head. See Fig. 1 .
Electronic Ignition Temperature Sensor	At top front of engine.
Heater Temperature Air Sensor	Behind center console, in heater housing.
Oil Pressure Sending Unit	At oil filter.
Oil Temperature Sensor	On engine block, next to oil filter.
Outside Temperature Sensor	On front bumper, behind license plate.
SRS (Air Bag) Impact Sensor	Under forward portion of center console.
TDC Sensor	At front of engine.

Mercedes-Benz 560SEL 1991 MOTORS LOCATION

Mercedes-Benz 560SEL 1991 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
EGR Switchover Valve	On right side of engine compartment.
Heater Water Valve	On firewall, to left of battery.
Kickdown Solenoid	In right rear of transmission.
Seat Back Lock Switch Valve (560SEC)	Behind left side of dash.

Mercedes-Benz 560SEL 1991 SWITCHES LOCATION

Component	Location
A/C Auxiliary Fan Temperature Switch	On engine coolant outlet.
A/C Cold Engine Lock-Out Switch	In top left rear of engine.
A/C Low Pressure Cut-Out Switch	On receiver-drier, behind left headlights.
A/C Receiver-Drier Temperature Switch	On receiver-drier, behind left headlights.
Air Injection Coolant Temperature Switch	At right rear of engine.
Belt Extender Limit Switch	On extender arms.
Brake/Stoplight Switch	At top of brake pedal support.
Evaporator Temperature Regulator Switch	In left side of plenum, above driver's footwell.
Kickdown Switch (A/T)	Under accelerator pedal.
Starter Lock/Back-Up Light Switch	In left side of transmission.
Warning Buzzer Switch	Part of ignition/Starter switch.

Mercedes-Benz 560SEL 1991 MISCELLANEOUS LOCATION

Component	Location
A/C Blower Motor Resistors	Below power brake booster.
ABS Hydraulic Unit	On left front side of engine compartment.
Altitude Correction Capsule	Under right front footrest. See Fig. 1 .
Cruise Control Amplifier	Under left side of dash.
Diagnostic Socket (Circuit TD)	In engine compartment, on left front fender. See Fig. 1 .
Electro-Hydraulic Actuator	On top of engine, just left of fuel distributor. See Fig. 1 .
Idle Speed Air Valve	On top of engine, in front of throttle body. See Fig. 1 .
On-Board Diagnostic Connector	On right side of firewall, near battery. See Fig. 1 .
Speedometer Impulse Transmitter	On left rear of transmission.
SRS (Air Bag)
Energy Accumulator	Under passenger's footwell.
Emergency Tensioning Retractor	Below left and right inner door pillar posts.
Voltage Converter	Under left side of dash, above pedal assembly.