GMC Pickup C2500 (1985-2000) wht Wiring diagrams

1 2 3 4 RF (+) RF (-) LF (+) LF (-) 17 18 19 20 RR (-) RR (+) LR (-) LR (+) 5 6 7 8 9 10 GROUND PARK LAMP DIMMER ANTENNA OUT IGNITION MEMORY ANTENNA BLK WIRE BLU WIRE BRN WIRE CASSETTE DECK CTSY FUSE DK BLU WIRE DK GRN WIRE FUSE BLOCK (UNDER LEFT SIDE OF DASH) GRAPHIC EQUALIZER GROUND PARK LAMP DIMMER IGNITION MEM (DATA) DATA GRY WIRE HOT AT ALL TIMES HOT IN ACCY OR RUN LEFT FRONT SPEAKER LEFT REAR SPEAKER LT BLU WIRE LT GRN WIRE ORG/ WIRE ORG/WHT WIRE PNK WIRE POWER ANTENNA SYSTEM PPL RADIO CONTROL HEAD RADIO FUSE RADIO RECEIVER RED WIRE RED/WHT WIRE RIGHT FRONT SPEAKER RIGHT REAR SPEAKER TAN WIRE WHT WIRE YEL WIRE

1 2 3 4 RF (+) RF (-) LF (+) LF (-) 17 18 19 20 RR (-) RR (+) LR (-) LR (+) 5 6 7 8 9 10 GROUND PARK LAMP DIMMER ANTENNA OUT IGNITION MEMORY ANTENNA BLK WIRE BLU WIRE BRN WIRE CASSETTE DECK CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) CTSY FUSE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FUSE BLOCK (UNDER LEFT SIDE OF DASH) GRAPHIC EQUALIZER GROUND PARK LAMP DIMMER IGNITION MEM (DATA) DATA GRY WIRE HOT AT ALL TIMES HOT IN ACCY OR RUN INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM LEFT FRONT SPEAKER LEFT REAR SIDE DOOR SPEAKER LEFT REAR SPEAKER LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE LT RR DOOR SPKR AMPLIFIER RELAY GROUND LT RR DOOR SPKR NOT USED LT RR SPKR LT RR SPKR RT RR DOOR SPKR NOT USED NOT USED ORG/ WIRE ORG/WHT WIRE PNK WIRE POWER AMPLIFIER RELAY (UNDER DASH, LEFT OF PEDAL BRACKET) PPL RADIO CONTROL HEAD RADIO FUSE RADIO POWER AMPLIFIER (UNDER DRIVER'S SEAT) RADIO RECEIVER RED WIRE RED/WHT WIRE RIGHT FRONT SPEAKER RIGHT REAR SIDE DOOR SPEAKER RIGHT REAR SPEAKER RT RR DOOR SPKR NOT USED NOT USED RT RR SPKR RT RR SPKR TAN WIRE WHT WIRE YEL WIRE

BATTERY JUNCTION BLOCK (RIGHT REAR ENGINE COMPARTMENT, AT COWL) BLK WIRE CARGO LAMP CARGO LAMP SWITCH CONVENIENCE CENTER COURTESY SWITCH CREW LEFT REAR DOOR JAMB SWITCH CAB ONLY CTSY FUSE FRONT DOME AND READING LAMPS FUSE BLOCK HOT AT ALL TIMES I/P COMPARTMENT BOX LAMP IN-LINE FUSE LEFT FRONT DOOR JAMB SWITCH LEFT I/P COURTESY LAMP NCA WIRE ORG/ WIRE ORG/BLK WIRE PANEL DIMMER SWITCH REAR DOME AND READING LAMPS RED WIRE RIGHT FRONT DOOR JAMB SWITCH RIGHT I/P COURTESY LAMP RIGHT REAR DOOR JAMB SWITCH UNDERHOOD REEL LAMP WHT WIRE

BATTERY JUNCTION BLOCK (RIGHT REAR ENGINE COMPARTMENT, AT COWL) BLK WIRE CARGO LAMP CARGO LAMP SWITCH CONVENIENCE CENTER COURTESY SWITCH CREW CAB ONLY CREW CAB, SUBURBAN, UTILITY W/OVERHEAD ROOF CONSOLE CTSY FUSE FRONT DOME LAMP FUSE BLOCK HOT AT ALL TIMES IN-LINE FUSE LEFT FRONT DOOR JAMB SWITCH ORG/ WIRE ORG/BLK WIRE OVERHEAD ROOF CONSOLE LAMPS PANEL DIMMER SWITCH REAR DOME LAMP RED WIRE RIGHT FRONT DOOR JAMB SWITCH SUBURBAN/YUKON BASE UNDERHOOD REEL LAMP WHT WIRE

BLK WIRE CONVENIENCE CENTER (UNDER LEFT SIDE OF I/P) FUSE BLOCK (LOWER LEFT SIDE OF I/P) GRY WIRE HOT AT ALL TIMES LEFT FRONT DOOR LOCK ACTUATOR SOLID STATE LEFT FRONT DOOR LOCK SWITCH LOCK LT BLU WIRE ORG/ WIRE PWR ACC CIRCUIT BREAKER RIGHT FRONT DOOR LOCK ACTUATOR SOLID STATE RIGHT FRONT DOOR LOCK SWITCH TAN WIRE UNLOCK WHT WIRE

BLK ORG/ WIRE BLK WIRE BRN WIRE CIRCUIT BREAKER CONVENIENCE CENTER FRT WPR FUSE FUSE BLOCK FUSIBLE LINK IGNITION SWITCH IN-LINE FUSE LEFT FRONT POWER WINDOW SWITCH LEFT POWER SEAT ORG BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE POWER POWER DOOR LOCK RELAY POWER OUTSIDE MIRROR SWITCH PWR WDO CIRCUIT BREAKER RADIO RDO FUSE REAR WINDOW DEFOGGER SWITCH REAR WIPER/ WASHER SWITCH RED WIRE RIGHT FRONT POWER WINDOW SWITCH RIGHT LEFT POWER POWER DOOR LOCK DOOR LOCK SWITCH SWITCH RIGHT LEFT REAR REAR POWER POWER WINDOW WINDOW SWITCH SWITCH RR WPR FUSE SUBURBAN, UTILTY ONLY WHT WIRE WIPER MOTOR MODULE WIPER/ WASHER SWITCH YEL WIRE

BLK ORG/ WIRE BLK WIRE BRN WIRE CIRCUIT BREAKER CONVENIENCE CENTER FRT WPR FUSE FUSE BLOCK FUSIBLE LINK IGNITION SWITCH IN-LINE FUSE LEFT FRONT POWER WINDOW SWITCH LEFT POWER SEAT ORG BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE POWER POWER DOOR LOCK RELAY POWER OUTSIDE MIRROR SWITCH PWR WDO CIRCUIT BREAKER RADIO RDO FUSE REAR WINDOW DEFOGGER SWITCH REAR WIPER/ WASHER SWITCH RED WIRE RIGHT FRONT POWER WINDOW SWITCH RIGHT LEFT POWER POWER DOOR LOCK DOOR LOCK SWITCH SWITCH RIGHT LEFT REAR REAR POWER POWER WINDOW WINDOW SWITCH SWITCH RR WPR FUSE SUBURBAN, UTILTY ONLY WHT WIRE WIPER MOTOR MODULE WIPER/ WASHER SWITCH YEL WIRE

A/C CLUTCH RELAY A/C CONTROL MODULE ANTILOCK BRAKE MODULE AUXILLIARY AUXILLIARY HEATER-A/C HEATER-A/C REAR LOGIC CONTROL MODULE AUXILLIARY BATTERY RELAY AUXILLIARY HEATER-A/C FRONT CONTROL BRAKE FUSE BRN WIRE BRN/WHT WIRE CONVENIENCE CENTER DK GRN WIRE ELECTRONIC TRANSMISSION 4-SPEED AUTOMATIC W/OVERDRIVE EXCEPT VIN Z FUSE FUSE BLOCK GRY WIRE HEATED OXYGEN SENSOR HEATER BLOWER SWITCH HEAVY DUTY ELECTRONIC TRANSMISSION 4-SPEED AUTOMATIC W/OVERDRIVE HIGH BLOWER RELAY HTR A/C FUSE IGNITION SWITCH INJ FUSE LOW BLOWER RELAY MED BLOWER RELAY MODE DOOR MOTOR ORG/ WIRE PANEL DIMMER SWITCH ASSEMBLY (INTERIOR LIGHTS SYSTEM) PNK WIRE PNK/BLK (OR PNK) WIRE PNK/BLK WIRE PNK/WHT WIRE PNL LPS FUSE RED WIRE RR HVAC FUSE TEMP DOOR MOTOR THROTTLE THROTTLE BODY FUEL BODY FUEL INJECTOR A INJECTOR B TRANS FUSE TRANSFER CASE SWITCH VEHICLE SPEED SENSOR BUFFER MODULE VIN Z ONLY W/ AIR CONDITIONING WHT WIRE

AUTOMATIC DAY-NIGHT HEATING SENSOR ELEMENT (UPPER (UPPER LEVEL) LEVEL) BLK WIRE BLU WIRE BRN WIRE CTSY FUSE 3 DOWN ELECTRO- DEFOGGER CHROMIC SYSTEM MIRROR (HEATED CIRCUIT MIRROR) GRN WIRE GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK LEFT LEFT POWER OUTSIDE REARVIEW MIRROR LEFT/ RIGHT MOTOR LT GRN WIRE LT LT (OR (OR ORG/ WIRE PNK WIRE POWER OUTSIDE REARVIEW MIRROR SWITCH PPL PPL/WHT WIRE RED (OR YEL) WIRE RED WIRE RIGHT RIGHT POWER OUTSIDE REARVIEW MIRROR UP/ DOWN MOTOR WHT WIRE YEL WIRE

BLK WIRE BRN WIRE CONVENIENCE CENTER DK BLU WIRE FUSE BLOCK LEFT FRONT POWER WINDOW MOTOR LEFT FRONT SWITCH LEFT POWER WINDOW MASTER SWITCH PNK WIRE RIGHT FRONT POWER WINDOW MOTOR RIGHT FRONT SWITCH RIGHT FRONT WINDOW SWITCH TAN WIRE UP DN WHT WIRE