Volvo 850 I (1991-1997) central electrical unit (left rear of engine compt) Wiring diagrams

ACCESSORIES CONNECTOR #1 (LEFT SIDE OF I/P) ACCESSORIES CONNECTOR #2 (LEFT SIDE OF I/P) ACCESSORIES CONNECTOR #3 (LEFT FRONT OF ENGINE COMPT) BLK WIRE BLU WIRE BLU/WHT WIRE BODY GROUND CONNECTOR BRN WIRE BRN/ORG WIRE CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) DIM OUT FUSE 16 FUSE 20 FUSE 21 FUSE 23 FUSE 35 GRN WIRE GRN/ORG WIRE GRN/RED WIRE HOT AT ALL TIMES HOT IN ACC OR RUN HOT W/ HI-BEAM HEADLAMPS ON HOT W/ LO-BEAM HEADLAMPS ON HOT W/ PARK LAMPS ON INTERIOR LIGHTS SYSTEM PNK WIRE ORG/ WIRE PNK WIRE POWER GROUND CONNECTOR RED WIRE RHEOSTAT WHT WIRE

ACCESSORIES CONNECTOR (LEFT SIDE OF I/P) BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/ORG WIRE CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) DIM OUT FUSE 16 FUSE 20 FUSE 35 HOT AT ALL TIMES HOT IN ACC OR RUN HOT W/ HI-BEAM HEADLAMPS ON INTERIOR LIGHTS SYSTEM PNK WIRE ORG/ WIRE PNK WIRE POWER GROUND CONNECTOR RED WIRE RHEOSTAT WHT WIRE

1995 EARLY PRODUCTION 1995 LATE PRODUCTION 30-RAIL CONNECTOR 9 10 11 8 12 M+ 9 10 11 8 M+ ALARM RELAY ATR BATTERY BLK WIRE BLU/BRN WIRE BLU/PNK WIRE BLU/RED WIRE BODY GROUND CONNECTOR BRN WIRE CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) CENTRAL LOCKING/DELAYED INTERIOR LIGHTING RELAY DEADLOCK SETTING RELAY FUSE 3 FUSE 32 FUSE 6 FUSE 15 GRN/BRN WIRE GRN/YEL WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ACC OR RUN W/ OVERLOAD RELAY #1 (X+) ENERGIZED HOT IN RUN OR START W/ OVERLOAD RELAY #2 (15+) ENERGIZED LA 15 AT LEFT FRONT DOOR LOCK LEFT REAR DOOR LOCK LOCK MBH MBL MBLS MBLS M- NCA WIRE PNK/BLK WIRE POWER GROUND CONNECTOR RED WIRE RIGHT FRONT DOOR LOCK RIGHT REAR DOOR LOCK SEDAN SOLID STATE TANK CAP CENTRAL LOCKING MOTOR UNLOCK VIO WIRE VIO/WHT WIRE WAGON TRUNK/TAILGATE LOCK WARNING SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

1995 EARLY PRODUCTION 1995 LATE PRODUCTION 2-STAGE LOCKING RELAY POSITION OR DEADLOCK SETTING RELAY POSITION 30-RAIL CONNECTOR 31 M+ UNLOCK 9 10 11 7 13 AT ALARM RELAY ATR BATTERY BLK WIRE BLU/BRN WIRE BLU/PNK WIRE BLU/RED WIRE BODY GROUND CONNECTOR BRN WIRE CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) CENTRAL LOCKING/DELAYED INTERIOR LIGHTING RELAY FUSE 3 FUSE 32 FUSE 6 FUSE 15 GRN/BRN WIRE GRN/YEL WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ACC OR RUN W/ OVERLOAD RELAY #1 (X+) ENERGIZED HOT IN RUN OR START W/ OVERLOAD RELAY #2 (15+) ENERGIZED LA 15 AT LEFT FRONT DOOR LOCK LEFT REAR DOOR LOCK LOCK NCA WIRE PNK/BLK WIRE POWER GROUND CONNECTOR RED WIRE RIGHT FRONT DOOR LOCK RIGHT REAR DOOR LOCK SEDAN SOLID STATE TANK CAP CENTRAL LOCKING MOTOR UNLOCK WAGON TRUNK/TAILGATE LOCK WARNING SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

1996 LATE PRODUCTION, 1997 ONLY ABS COMBINATION RELAY (1995) OR ABS CONTROL MODULE (1996, 1997) ABS CONTROL MODULE ABS CONTROL MODULE (W/ TRACTION CONTROL ONLY), ABS COMBINATION RELAY ACCESSORIES CONNECTOR, POWER ANTENNA (SEDAN) OR NOT USED (WAGON) BATTERY (LEFT FRONT OF ENGINE COMPT) BLK WIRE BLU WIRE BRAKE/STOP LIGHT SWITCH CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) CIRCUIT BREAKER 39 CIRCUIT BREAKER 40 ENGINE COOLING FAN RELAY EXTERIOR LIGHTS SYSTEM (LIGHT SWITCH) FOG LIGHT RELAY FUSE 10 FUSE 11 FUSE 12 FUSE 13 FUSE 14 FUSE 15 FUSE 16 FUSE 18 FUSE 19 FUSE 20 FUSE 21 FUSE 22 FUSE 23 FUSE 24 FUSE 25 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 9 FUSIBLE LINK GENERATOR GRN WIRE GRY WIRE HEADLIGHTS SYSTEM (MAIN HEADLIGHT RELAY/BULB FAILURE SENSOR) HEADLIGHTS SYSTEM (REAR FOG LIGHT SWITCH) HEATED REAR SEAT RELAY HEATED REAR WINDOW/DOOR MIRROR RELAY INSTRUMENT CLUSTER LIGHT SWITCH INSTRUMENT CLUSTER, REAR FOG LAMPS LEFT HEADLAMP (LO-BEAM), ACCESSORIES CONNECTOR- (1995 EARLY PRODUCTION) LEFT HEADLAMP HI-BEAM LEFT SEAT CONTROL MODULE MAIN HEADLIGHT RELAY/ BULB FAILURE WARNING SENSOR OVERLOAD RELAY #1 (X+) (DIAGRAM 2 OF 2) OVERLOAD RELAY #2 (15+) (DIAGRAM 2 OF 2) OVERLOAD RELAY #3 (X+) (DIAGRAM 2 OF 2) RADIO RADIO AMPLIFIER RED WIRE RIGHT FRONT PARK/TURN LAMP, REAR BULB FAILURE WARNING SENSOR RIGHT HEADLAMP (HI-BEAM), INSTRUMENT CLUSTER RIGHT HEADLAMP LO-BEAM RIGHT SEAT CONTROL MODULE SPARE STARTER TO FUSE 36 (DIAGRAM 2 OF 2) TO IGNITION SWITCH (DIAGRAM 2 OF 2) TURN SIGNAL/ HIGH-LOW BEAM SWITCH, HAZARD FLASHER RELAY/SWITCH, ALARM RELAY VIO WIRE WHT WIRE

1995 EARLY PRODUCTION 1995 LATE PROD, 1996, 1997 1996 EARLY PRODUCTION ONLY ABS CONTROL MODULE, ABS COMBINATION RELAY ALARM RELAY, CRUISE CONTROL MODULE (W/ A/T) ALARM SIREN (W/ LATE PROD GUARD ALARM II) BLK WIRE BLU WIRE BLU/RED WIRE BODY GROUND CONNECTOR BATTERY BRN WIRE CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) CENTRAL LOCKING/ ANTI-THEFT REMOTE CONTROL MODULE, RADIO CIGAR LIGHTER CIRCUIT BREAKER 37 ELECTRONIC IMMOBILIZER (1997) ENGINE CONTROL MODULE, AW 50-42 AUTOMATIC TRANSMISSION CONTROL MODULE FROM FUSE 11 (1996 LATE PRODUCTION ONLY) (HOT AT ALL TIMES) (DIAGRAM 1 OF 2) FROM FUSE 6 (POSITIVE BATTERY TERMINAL) (HOT AT ALL TIMES) (DIAGRAM 1 OF 2) FROM FUSE 7 (POSITIVE BATTERY TERMINAL) (HOT AT ALL TIMES) (DIAGRAM 1 OF 2) FROM FUSE 8 (POSITIVE BATTERY TERMINAL) (HOT AT ALL TIMES) (DIAGRAM 1 OF 2) FUSE 1 FUSE 17 FUSE 26 FUSE 27 FUSE 29 FUSE 3 FUSE 30 FUSE 31 FUSE 32 FUSE 33 FUSE 34 FUSE 35 FUSE 36 FUSE 28 FUSE 4 FUSE 2 GRN WIRE GRY WIRE IGNITION SWITCH KEY IN KEY-IN IGNITION SWITCH LIGHT SWITCH LIGHT SWITCH, POWER DOOR MIRROR SWITCHES, FRONT HEATED SEAT SWITCHES OFF ORG/ WIRE OVERLOAD RELAY #1 (X+) OVERLOAD RELAY #1 (X+), OVERLOAD RELAY #3 (X+) (DIAGRAM 2 OF 2) OVERLOAD RELAY #2 (15+) OVERLOAD RELAY #2 (X+), FUSE 1 (DIAGRAM 2 OF 2) OVERLOAD RELAY #3 (X+) POSITIVE BATTERY TERMINAL (DIAGRAM 1 OF 1) POWER GROUND CONNECTOR POWER WINDOW SWITCHES, POWER SUNROOF CONTROL MODULE RED WIRE RHEOSTAT, POWER SUNROOF SWITCH, ACCESSORIES CONNECTOR SEAT BELT REMINDER/ KEY WARNING RELAY SPEED WARNING RELAY, CENTRAL LOCKING/ DELAYED INTERIOR LIGHTING RELAY SRS SENSOR UNIT VIO WIRE YEL WIRE YEL/VIO WIRE

1 2 1995 MODELS 1996-97 MODELS BLK WIRE BLU WIRE BLU/GRN WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/WHT WIRE CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) DEFOGGERS SYSTEM FUSE 26 GRN/GRY WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT IN RUN LEFT POWER DOOR MIRROR LEFT POWER DOOR MIRROR HEATING ELEMENT LEFT POWER DOOR MIRROR SWITCH POWER WINDOWS/POWER MIRRORS CONSOLE SWITCH ASSEMBLY RIGHT POWER DOOR MIRROR RIGHT POWER DOOR MIRROR HEATING ELEMENT RIGHT POWER DOOR MIRROR SWITCH X-MOTOR Y-MOTOR 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 BLU/GRN WIRE BLU/WHT WIRE CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) CIRCUIT BREAKER 37 GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/RED WIRE HOT IN ACC OR RUN W/ OVERLOAD RELAY #3 (X+) ENERGIZED LEFT FRONT POWER WINDOW SWITCH LEFT FRONT WINDOW MOTOR LEFT REAR POWER WINDOW SWITCH LEFT REAR WINDOW MOTOR POWER WINDOW AUTO DOWN RELAY (BELOW CENTER CONSOLE) POWER WINDOW/POWER MIRROR CONSOLE SWITCH ASSEMBLY REAR POWER WINDOW LOCK-OUT SWITCH RED/BLK WIRE RED/WHT WIRE RIGHT FRONT POWER WINDOW SWITCH RIGHT FRONT WINDOW MOTOR RIGHT REAR POWER WINDOW SWITCH RIGHT REAR WINDOW MOTOR WHT WIRE YEL WIRE

1995 EARLY PRODUCTION 1995 LATE PRODUCTION, 1996-97 BATTERY BLK WIRE BLU WIRE BLU/WHT WIRE BODY GROUND CONNECTOR BRN WIRE BRN/WHT WIRE CENTRAL ELECTRICAL UNIT (LEFT REAR OF ENGINE COMPT) CONNECTOR FUSE 10 FUSE 28 HEATED REAR SEAT RELAY HOT AT ALL TIMES HOT IN RUN ILLUMINATION LAMP INTERIOR LIGHTS SYSTEM PNK PNK WIRE LEFT REAR HEATED SEAT SWITCH LEFT REAR SEAT BACKREST HEATER PAD LEFT REAR SEAT SEAT HEATER PAD LEFT REAR SEAT THERMOSTAT OFF ON INDICATOR PNK WIRE PNK/BLK WIRE POWER GROUND CONNECTOR RED WIRE RED/WHT WIRE RIGHT REAR HEATED SEAT SWITCH RIGHT REAR SEAT BACKREST HEATER PAD RIGHT REAR SEAT SEAT HEATER PAD RIGHT REAR SEAT THERMOSTAT VIO WIRE VIO/WHT WIRE WHT WIRE YEL WIRE