Volvo S70 I (1997-2000) central electrical unit Wiring diagrams

ABS CONTROL MODULE (ON LEFT REAR OF ENG COMPT) ABS PUMP MOTOR ABS WARNING INDICATOR BLK WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BRAKE LIGHT SWITCH BRN WIRE BRN/WHT WIRE CENTRAL ELECTRICAL UNIT EBD PRESSURE SENSOR (NEAR BRAKE MASTER CYLINDER) ENGINE COMPT RELAY/ FUSE BOX FUSE FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IGNITION SWITCH ILLUM- INATION LAMP INSTRUMENT CLUSTER INTERIOR LIGHTS SYSTEM (RHEOSTAT) PNK WIRE LEFT FRONT ABS SENSOR (ON WHEEL HUB) LEFT FRONT STRUT TOWER) LEFT REAR ABS SENSOR (ON WHEEL HUB) M- M+ NCA WIRE OFF ON ON-BOARD DIAGNOSTIC CONNECTOR (PARTIAL) (CENTER CONSOLE, FORWARD SHIFTER) PNK WIRE RED WIRE RIGHT FRONT ABS SENSOR (ON WHEEL HUB) RIGHT REAR ABS SENSOR (ON WHEEL HUB) SPEEDOMETER TRACS SWITCH TRACS WARNING INDICATOR TWISTED WIRE PAIRS VIO WIRE VIO/WHT WIRE W/ TRACTION CONTROL WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRY WIRE

A/C SYSTEM ALARM HORN ALARM HORN RELAY (IN CENTRAL ELECTRICAL UNIT, POSITION 202) ALARM SIREN ALARM/ ELECTRONIC IMMOBILIZER INDICATOR BLK WIRE BLK/RED WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/PNK WIRE BLU/RED WIRE BLU/YEL WIRE BONNET ALARM SWITCH (FRONT OF ENG COMPT) BRN/WHT WIRE CAR TILT SENSOR (ON RIGHT REAR CORNER OF VEHICLE) CENTRAL ELECTRICAL UNIT CENTRAL LOCKING/ ANTI-THEFT ALARM CONTROL MODULE (BEHIND LOWER LEFT END OF DASH) CENTRAL LOCKING/ALARM REMOTE CONTROL UNIT (BEHIND UPPER LEFT SIDE OF DASH) CONNECTOR DOOR LOCKS SYSTEM EXTERIOR LIGHTS SYSTEM (TURN SIGNAL) FUSE GLASS BREAKAGE SENSOR (BEHIND RIGHT SIDE OF DASH) GRN WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES KEY IN IGNITION SWITCH HOT W/ OVERLOAD RELAY 106 ENERGIZED IGNITION SWITCH INSTRUMENT CLUSTER SYSTEM LEFT FRONT STRUT TOWER) LEFT MOVEMENT DETECTOR (LEFT "B" PILLAR) LEFT REAR SIDE WINDOW ALARM LEAD MICROPHONE NCA WIRE ORG/WHT WIRE PNK/BLK WIRE PNK/WHT WIRE POWER GROUND RAIL (IN CENTRAL ELECTRICAL UNIT) REAR HEATED WINDOW ELEMENT RED WIRE RED/BLK WIRE RIGHT MOVEMENT DETECTOR (RIGHT "B" PILLAR) RIGHT REAR SIDE WINDOW ALARM LEAD SOLID STATE STRUT TOWER) (LEFT FRONT VIO WIRE VIO/WHT WIRE W/ ECC W/O ECC WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE YEL/WHT WIRE

A/T M/T BLK WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BRAKE LIGHT SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) CENTRAL ELECTRICAL UNIT CENTRAL ELECTRICAL UNIT (ON LEFT REAR OF ENGINE COMPARTMENT) CLUTCH PEDAL SWITCH (ON BRACKET, ABOVE CLUTCH PEDAL) CONNECTOR CRUISE CONTROL MODULE (CENTRAL ELECTRICAL UNIT, POSITION 101, 102) CRUISE CONTROL SWITCH CRUISE CONTROL VACUUM PUMP (LEFT FRONT OF ENGINE COMPT) DATA LINK CONNECTOR (ON CENTER CONSOLE, NEAR SHIFT LEVER) DEC FUSE GRN/BLK WIRE GRN/RED WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ OVERLOAD RELAY 106 ENERGIZED INSTRUMENT CLUSTER LEFT FRONT STRUT TOWER) NCA WIRE OFF POWER GROUND CONNECTOR RED WIRE RED/BLK WIRE RES+ SPEEDOMETER STARTER MOTOR RELAY W/ A/T ONLY WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

2 5 PNK WIRE ANTENNA BOOSTER (ON LEFT "C" PILLAR) BLK WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE CENTRAL ELECTRICAL UNIT CENTRAL ELECTRICAL UNIT (LEFT FRONT OF ENG COMPT) CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENG COMPT) CONNECTOR DOOR MIRROR HEATING ELEMENT GRN WIRE HEATED REAR WINDOW/DOOR MIRRORS RELAY HEATED REAR WINDOW/DOOR MIRRORS SWITCH HOT AT ALL TIMES HOT W/ OVERLOAD RELAY 106 ENERGIZED ILLUMINATION LAMP INTERIOR LIGHTS SYSTEM (RHEOSTAT) LEFT FRONT STRUT TOWER) LEFT POWER DOOR MIRROR ON INDICATOR POWER GROUND CONNECTOR REAR WINDOW HEATING ELEMENT RED WIRE RIGHT POWER DOOR MIRROR SIGNAL GROUND CONNECTOR YEL WIRE YEL/RED WIRE

3 7 DATA LINK CONNECTOR (ON CENTER CONSOLE, NEAR SHIFT LEVER) A/C SYSTEM ALARM/ ELECTRONIC IMMOBILIZER INDICATOR BLK WIRE BLU/ GRN WIRE BLU/GRN WIRE BRN/WHT WIRE CENTRAL ELECTRICAL UNIT CENTRAL LOCKING/ ANTI-THEFT ALARM CONTROL MODULE (BEHIND LOWER LEFT END OF DASH) EARLY VERSION ELECTRONIC CLIMATE CONTROL MODULE (BEHIND CENTER OF DASH) (RIGHT "A" PILLAR) ELECTRONIC START INHIBITOR (BEHIND LEFT SIDE OF DASH) ENGINE CONTROL MODULE (RIGHT FRONT INNER FENDER PANEL, IN CONTROL MODULE BOX) FUSE GRY WIRE GRY/ORG WIRE HOT AT ALL TIMES HOT IN START, ON IGNITION LIGHTING/ ANTENNA RING (RIGHT OF STEERING COLUMN) LATE VERSION LEFT FRONT STRUT TOWER) ORG/ WIRE PNK/BLK WIRE PNK/WHT WIRE POWER GROUND RAIL (IN CENTRAL ELECTRICAL UNIT) RED WIRE RELAY 1 RELAY 2 SOLID STATE VIO/WHT WIRE W/ ECC W/O ECC WHT WIRE YEL WIRE YEL/BRN WIRE

1 2 PNK WIRE 2 3 PNK WIRE 2 5 PNK CONV. WIRE 2 5 PNK EXCEPT CONV. WIRE A/C CONTROL PANEL BLK WIRE BLU/YEL WIRE BRN/ORG WIRE CENTRAL ELECTRICAL UNIT CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENG COMPT) ELECTRONIC CLIMATE CONTROL MODULE FRONT ASHTRAY ILLUMINATION LAMP FRONT FOG LIGHT SWITCH FUSE GEAR SELECTOR ILLUMINATION LAMP GRN/RED WIRE HAZARD FLASHER RELAY/SWITCH HEAD HEAD PARK OFF HEADLIGHTS SYSTEM HEATED REAR WINDOW/DOOR MIRRORS SWITCH HOT AT ALL TIMES HOT IN ACC OR ON HOT W/ OVERLOAD RELAY 105 ENERGIZED INSTRUMENT CLUSTER LEFT FRONT HEATED SEAT SWITCH LEFT FRONT STRUT TOWER) LIGHT SWITCH OFF PARK PNK 14 15 WIRE PNK 2 5 WIRE PNK PR PR WIRE PNK WIRE POWER GROUND CONNECTOR POWER SUNROOF SWITCH RADIO REAR FOG LIGHT SWITCH RED/BLK WIRE RHEOSTAT RIGHT FRONT HEATED SEAT SWITCH RTI CONTROL MODULE RTI DISPLAY SOFT TOP SWITCH TRACS SWITCH W/ AUTO A/C W/ MANUAL A/C WHT WIRE WHT/BLK WIRE

BLK WIRE BLU/WHT WIRE CD CHANGER CENTRAL ELECTRICAL UNIT GRY/RED WIRE HOT AT ALL TIMES FUSE NCA WIRE POWER ANTENNA (ON LEFT SIDE OF LUGGAGE COMPT) RADIO RED WIRE

2 1 PNK WIRE A/T A/T M/T BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/PNK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE CENTRAL ELECTRICAL UNIT ENG COMPT. RELAY/ FUSE BOX ENGINE CONTROL MODULE (ON RIGHT FRONT INNER FENDER PANEL, IN CONTROL MODULE BOX) ENGINE COOLING FAN RELAY ENGINE SPEED SENSOR (REAR OF OF ENG, ABOVE BELLHOUSING) EVAP CANISTER VALVE (UNDER RIGHT REAR OF VEHICLE) FUEL INJECTORS FUEL SYSTEM MAIN RELAY (ON ENG COMPT RELAY/ FUSE 1 FUSE 2 FUSE 3 (NON-CONVERT.) (CONVERT.) FUSE 5 FUSE 8 FUSE 3 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/ORG WIRE GRY/RED WIRE GRY/WHT WIRE HEATED OXYGEN SENSOR (REAR) (BEHIND CATALYTIC CONVERTER) HOT AT ALL TIMES HOT AT ALL TIMS HOUSING) IDLE AIR CONTROL VALVE IGNITION SWITCH KNOCK SENSOR (KS) (FRONT) (ON LEFT SIDE OF ENG) KNOCK SENSOR (KS) (REAR) (ON LEFT SIDE OF ENG) M/T MASS AIR FLOW/AIR VOLUME SENSOR (ON AIR CLEANER NCA WIRE OFF ORG/BLK WIRE ORG/WHT WIRE OUTSIDE TEMPERATURE SENSOR (OPTIONAL) (ON RIGHT SIDE OF HVAC HOUSING) PAIR SYSTEM SOLENOID VALVE (OPTIONAL) (ON CENTER FRONT OF ENG) PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RUN WIRE VIO WIRE WHT WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE YEL/WHT WIRE

2 1 PNK WIRE A/T A/T M/T BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/PNK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE CENTRAL ELECTRICAL UNIT ENG COMPT. RELAY/ FUSE BOX ENGINE CONTROL MODULE (ON RIGHT FRONT INNER FENDER PANEL, IN CONTROL MODULE BOX) ENGINE COOLING FAN RELAY ENGINE SPEED SENSOR (REAR OF OF ENG, ABOVE BELLHOUSING) EVAP CANISTER VALVE (UNDER RIGHT REAR OF VEHICLE) FUEL INJECTORS FUEL SYSTEM MAIN RELAY (ON ENG COMPT RELAY/ FUSE 1 FUSE 2 FUSE 3 (NON-CONVERT.) (CONVERT.) FUSE 5 FUSE 8 FUSE 3 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/ORG WIRE GRY/RED WIRE GRY/WHT WIRE HEATED OXYGEN SENSOR (REAR) (BEHIND CATALYTIC CONVERTER) HOT AT ALL TIMES HOT AT ALL TIMS HOUSING) IDLE AIR CONTROL VALVE IGNITION SWITCH KNOCK SENSOR (KS) (FRONT) (ON LEFT SIDE OF ENG) KNOCK SENSOR (KS) (REAR) (ON LEFT SIDE OF ENG) M/T MASS AIR FLOW/AIR VOLUME SENSOR (ON AIR CLEANER NCA WIRE OFF ORG/BLK WIRE ORG/WHT WIRE OUTSIDE TEMPERATURE SENSOR (OPTIONAL) (ON RIGHT SIDE OF HVAC HOUSING) PAIR SYSTEM SOLENOID VALVE (OPTIONAL) (ON CENTER FRONT OF ENG) PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RUN WIRE VIO WIRE WHT WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE YEL/WHT WIRE

2 1 PNK WIRE A/T A/T M/T BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/PNK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE CENTRAL ELECTRICAL UNIT ENG COMPT. RELAY/ FUSE BOX ENGINE CONTROL MODULE (ON RIGHT FRONT INNER FENDER PANEL, IN CONTROL MODULE BOX) ENGINE COOLING FAN RELAY ENGINE SPEED SENSOR (REAR OF OF ENG, ABOVE BELLHOUSING) EVAP CANISTER VALVE (UNDER RIGHT REAR OF VEHICLE) FUEL INJECTORS FUEL SYSTEM MAIN RELAY (ON ENG COMPT RELAY/ FUSE 1 FUSE 2 FUSE 3 (NON-CONVERT.) (CONVERT.) FUSE 5 FUSE 8 FUSE 3 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/ORG WIRE GRY/RED WIRE GRY/WHT WIRE HEATED OXYGEN SENSOR (REAR) (BEHIND CATALYTIC CONVERTER) HOT AT ALL TIMES HOT AT ALL TIMS HOUSING) IDLE AIR CONTROL VALVE IGNITION SWITCH KNOCK SENSOR (KS) (FRONT) (ON LEFT SIDE OF ENG) KNOCK SENSOR (KS) (REAR) (ON LEFT SIDE OF ENG) M/T MASS AIR FLOW/AIR VOLUME SENSOR (ON AIR CLEANER NCA WIRE OFF ORG/BLK WIRE ORG/WHT WIRE OUTSIDE TEMPERATURE SENSOR (OPTIONAL) (ON RIGHT SIDE OF HVAC HOUSING) PAIR SYSTEM SOLENOID VALVE (OPTIONAL) (ON CENTER FRONT OF ENG) PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RUN WIRE VIO WIRE WHT WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE YEL/WHT WIRE