Volvo 850 I (1991-1997) central electrical unit Wiring diagrams

30-RAIL CONNECTOR ALARM HORN (CENTER REAR OF ENGINE COMPT) ALARM RELAY ALARM WARNING LED ALARM WARNING LED (TOP CENTER OF I/P) AT ATR ATR ATR RH BLK WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE CENTRAL ELECTRICAL UNIT CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) CENTRAL LOCKING ANTI-THEFT ALARM REMOTE CONTROL MODULE (RIGHT SIDE OF I/P) CENTRAL LOCKING/ DELAYED INTERIOR LIGHTING RELAY (IN CENTRAL ELECTRICAL UNIT) CRUISE CONTROL SYSTEM DOOR LOCKS SYSTEM ECC SOLAR SENSOR/ ALARM WARNING LED EXTERIOR LIGHTS SYSTEM (TURN- SIGNAL LAMPS) FH AL FUSE 13 FUSE 6 FUSE 15 FUSE 32 FUSE 2 GRN WIRE GRN/RED WIRE GRN/YEL WIRE HOOD ALARM SWITCH (LEFT FRONT OF ENGINE COMPT) HOT AT ALL TIMES IGNITION SWITCH LEFT FRONT DOOR LOCK LEFT REAR DOOR LOCK LICENSE PLATE LIGHT LOCK M/T A/T NCA WIRE PNK WIRE PNK/WHT WIRE POWER GROUND CONNECTOR DOOR LOCKS SYSTEM RED WIRE RIGHT FRONT DOOR LOCK RIGHT REAR DOOR LOCK RUN WIRE SEDAN SERVICE STARTER CONNECTOR (RIGHT FRONT OF ENGINE COMPT) SIGNAL GROUND CONNECTOR SOLID STATE STARTER TAILGATE LOCK TRANSMISSION RANGE SENSOR (ON TRANS- AXLE) TRUNK LIGHT TRUNK LOCK VIO WIRE W/ A/T ONLY W/ ELECTRONIC CLIMATE CONTROL W/O ELECTRONIC CLIMATE CONTROL WAGON WHT WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

2 5 PNK WIRE BLK WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE CENTRAL ELECTRICAL UNIT CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) CONNECTOR DDOR MIRROR HEATING ELEMENT DOOR MIRROR HEATING ELEMENT FUSE 11 FUSE 28 GRN WIRE HEATED REAR WINDOW/DOOR MIRRORS RELAY HEATED REAR WINDOW/DOOR MIRRORS SWITCH HOT AT ALL TIMES HOT IN RUN ILLUMINATION LAMP INTERIOR LIGHTS SYSTEM (RHEOSTAT) LEFT FRONT DOOR LOCK LEFT POWER DOOR MIRROR ON INDICATOR POWER GROUND CONNECTOR SIGNAL GROUND CONNECTOR REAR WINDOW HEATING ELEMENT RED WIRE RIGHT FRONT DOOR LOCK RIGHT POWER DOOR MIRROR WAGON SEDAN YEL WIRE YEL/RED WIRE

2 5 PNK WIRE BLK WIRE BLU WIRE BLU/YEL WIRE BRN WIRE CENTRAL ELECTRICAL UNIT CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) CIRCUIT BREAKER 37 FUSE 35 GRN WIRE HOT IN ACC OR RUN W/ OVERLOAD RELAY NO.3 (X+) ENERGIZED HOT IN RUN ILLUMINATION LAMP INTERIOR LIGHTS SYSTEM (RHEOSTAT) ORG/ WIRE POWER GROUND CONNECTOR POWER SUNROOF CONTROL MODULE POWER SUNROOF MOTOR POWER SUNROOF SWITCH SOLID STATE WHT WIRE

BLK WIRE BLU WIRE BODY GROUND CONNECTOR CENTRAL ELECTRICAL UNIT CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) FUSE 33 GRN WIRE GRN/GRY WIRE GRN/ORG WIRE GRN/WHT WIRE GRY WIRE HOT IN ACC OR RUN INT WIPE NCA WIRE ORG/ WIRE ORG/BLK WIRE POWER GROUND CONNECTOR RED WIRE SIGNAL GROUND CONNECTOR SOLID STATE TAILGATE WASHER MOTOR TAILGATE WIPER INTERMITTENT RELAY TAILGATE WIPER MOTOR TAILGATE WIPER/WASHER SWITCH VIO WIRE WASHER SWITCH WHT WIRE WIPE WIPER/WASHER SWITCH X-RAIL CONNECTOR YEL WIRE YEL/VIO WIRE

BATTERY BLK WIRE BLU WIRE CENTRAL ELECTRICAL UNIT CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) FUSE 33 GRN WIRE GRN/GRY WIRE GRN/ORG WIRE GRN/WHT WIRE GRY WIRE HOT IN ACC OR RUN INT WIPE NCA WIRE ORG/ WIRE ORG/BLK WIRE POWER GROUND CONNECTOR RED WIRE SIGNAL GROUND CONNECTOR SOLID STATE TAILGATE WASHER MOTOR TAILGATE WIPER INTERMITTENT RELAY TAILGATE WIPER MOTOR TAILGATE WIPER/WASHER SWITCH VIO WIRE WASHER SWITCH WHT WIRE WIPE WIPER/WASHER SWITCH X-RAIL CONNECTOR YEL WIRE YEL/VIO WIRE

A/C PRESSOSTAT (AIR CONDITIONING SYSTEM) A/C PRESSURE SENSOR (COOLING FANS SYSTEM) PIN 1 PIN 3 A/C RELAY (W/ ECC) A/C SOLENOID COUPLING ACCELEROMETER (CENTER REAR OF ENG COMPT) AW 50-42 AUTOMATIC TRANSMISSION CONTROL MODULE (LEFT FRONT OF ENG COMPT) BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/ORG WIRE BLU/RED WIRE BRN WIRE BRN/ORG (OR BRN/PNK) WIRE BRN/PNK WIRE BRN/WHT WIRE CENTRAL ELECTRICAL UNIT CENTRAL ELECTRICAL UNIT (LEFT REAR CORNER OF ENGINE COMPT.) CENTRAL ELECTRICAL UNIT (LEFT REAR CORNER OF ENGINE COMPT.) FUSE #2 CRUISE CONTROL MODULE (IN CENTRAL ELEC. UNIT) DI POWER STAGE (FRONT OF LEFT STRUT TOWER) DISTRIBUTOR ECC CONTROL FUEL PUMP (IN FUEL TANK) FUEL PUMP RELAY (IN CENTRAL ELECTRICAL UNIT) GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/ORG (OR VIO/WHT) WIRE GRN/WHT WIRE GRN/YEL WIRE GRY BLU/ WIRE GRY WIRE GRY/BLK WIRE GRY/ORG WIRE GRY/RED WIRE HOT AT ALL TIMES IGNITION SWITCH INSTRUMENT CLUSTER INSTRUMENT CLUSTER (TEMP. GAUGE) J/B (30 RAIL) (IN ELECTRICAL CENTRAL UNIT) MAL- FUNCTION INDICATOR "CHECK ENGINE" SPEEDO- METER (OUTPUT) MOTRONIC 4.3 MFI CONTROL MODULE (RIGHT FRONT OF ENGINE COMPART- MENT) NCA WIRE OFF OPTIONAL ORG/WHT WIRE OVERLOAD RELAY 15+ (IN CENTRAL ELECTRICAL UNIT) PIN 2 PNK WIRE PULSE SENSOR (BELOW DISTRIBUTOR) RED WIRE RED/BLK WIRE RUN WIRE SOLID STATE TACHOMETER TRIP COMPUTER VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE