GMC Pickup C2500 (1985-2000) gry Wiring diagrams

ANTENNA ANTENNA INPUT BLK WIRE BRN WIRE COAXIAL CABLE CTSY FUSE DK GRN WIRE FUSE BLOCK (UNDER LEFT SIDE OF DASH) GRY WIRE HOT AT ALL TIMES HOT IN ACCY OR RUN IGN MEMORY(BAT) LEFT FRONT SPEAKER LT FRT SPKR LT FRT SPKR RT FRT SPKR RT FRT SPKR GROUND PARK LAMP DIMMER LT GRN WIRE ORG/ WIRE RADIO RADIO FUSE RIGHT FRONT SPEAKER TAN WIRE YEL 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

ACC-BATT CIRCUIT BREAKER BLK WIRE BLK/RED WIRE CARGO DOOR (SUBURBAN ONLY) CONTACTOR RIGHT REAR CONVENIENCE CENTER (UNDER LEFT SIDE OF I/P) DOOR LOCK RELAY FUSE BLOCK GRY WIRE HOT AT ALL TIMES LEFT FRONT DOOR LOCK MOTOR LEFT FRONT DOOR LOCK SWITCH LEFT REAR RIGHT FRONT DOOR LOCK DOOR LOCK MOTOR MOTOR (SUBURBAN ONLY) LOCK LT BLU WIRE ORG/ WIRE ORG/BLK WIRE POWER MIRROR SYSTEM (IN-LINE FUSE) REAR CARGO DOOR LOCK MOTOR RIGHT FRONT DOOR LOCK MOTOR RIGHT FRONT DOOR LOCK SWITCH TAN WIRE UNLOCK UNLOCK (BEHIND I/P, RIGHT SIDE OF BRAKE PEDAL BRACKET)

ASHTRAY LAMP AUXILIARY A/C-HEATER FRONT CONTROL LAMP BLK WIRE BRN WIRE CONVENIENCE CENTER DK GRN WIRE FOUR-WHEEL DRIVE ILLUMINATION LAMP FUSE BLOCK FUSE BLOCK PNL LPS FUSE GRY WIRE HEADLIGHT SWITCH ASSEMBLY HEATER A/C CONTROL LAMPS HEATER CONTROL LAMPS HIGH DIM HOT AT ALL TIMES INSTRUMENT CLUSTER LIGHT SWITCH OFF HEAD PARK ORG/ WIRE PANEL DIMMER SWITCH (ASSEMBLY) PARK LP FUSE RADIO REAR DEFOGGER LAMP SOLID STATE

ACCY ACCY BULB TEST LOCK OFF AUDIO ALARM AUXILLARY COOLING FAN RELAY BLK WIRE BLK/RED WIRE BRN WIRE BULB TEST CIGARETTE LIGHTER CIRCUIT BREAKER CLUTCH PEDAL SWITCH CONVEN- IENCE CENTER CONVENIENCE CENTER CRANK FUSE CTSY FUSE PARK LPS FUSE DAYTIME RUNNING LAMPS RELAY FUEL PUMP RELAY FUSE BLOCK FUSES FUSIBLE FUSIBLE LINK GENERATOR GLOW PLUG CONTROLLER GRY WIRE HEADLIGHT SWITCH ASSEMBLY HORN RELAY (CONVENIENCE CENTER) HTR-A/C, RR HVAC, IGNITION SWITCH LEFT BATTERY RIGHT BATTERY LINK LOCK LOCK OFF LOW BLOWER MEDIUM HIGH RELAY BLOWER BLOWER RELAY RELAY MODULE OFF ORG/ WIRE PNK WIRE POWERTRAIN FUEL CONTROL PUMP/OIL MODULE PRESSURE (PCM) SWITCH PPL PPL/ WHT WIRE PWR RADIO DOME LAMP REAR WINDOW RELEASE RELAY REAR WINDOW RELEASE SWITCH RED WIRE RR WPR, FRT WPR, RDO FUSES AND AND PWR WDO CIRCUIT BREAKER RUN WIRE STARTER MOTOR SOLENOID STOP FUSE SUBURBAN, UTILITY EXC. SUBURBAN, UTILITY SUBURBAN, UTILITY ONLY T/G REL FUSE DRL FUSE TRANS ECM-IGN, GLOW TURN B/U FUSE PLUGS, GAUGES FUSES W/ AUTO TRANS W/ AUTOMATIC TRANSMISSION WHT PPL/ WIRE 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 HEATER-A/C FRONT CONTROL BLU WIRE BRAKE FUSE BRN WIRE BRN/WHT WIRE CONVENIENCE CENTER DK BLU WIRE DK GRN WIRE ELECTRONIC TRANSMISSION 4-SPEED AUTOMATIC W/OVERDRIVE FUSE FUSE BLOCK FUSIBLE LINK GLOW PLUG CONTROL MODULE GLOW PLUG FUSE GRY WIRE HEATER BLOWER SWITCH HEAVY DUTY ELECTRONIC TRANSMISSION 4-SPEED AUTOMATIC W/OVERDRIVE HIGH BLOWER RELAY HTR A/C FUSE IGNITION SWITCH INSTRUMENT CLUSTER PRINTED CIURCUIT LEFT GLOW PLUGS LINK FUSIBLE LOW BLOWER RELAY MED BLOWER RELAY MODE DOOR MOTOR ORG/ WIRE PANEL DIMMER SWITCH ASSEMBLY (INTERIOR LIGHTS SYSTEM) PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PNL LPS FUSE POWERTRAIN CONTROL MODULE RIGHT GLOW PLUGS RR HVAC FUSE TEMP DOOR MOTOR TRANS FUSE TRANSFER CASE SWITCH VEHICLE SPEED SENSOR BUFFER MODULE W/ AIR CONDITIONING

ACCY AUDIO BATTERY BLK WIRE BLK/RED WIRE BRN WIRE BULB TEST CIGARETTE LIGHTER CIRCUIT BREAKER CLUTCH PEDAL SWITCH CONVEN- IENCE CENTER CONVENIENCE CENTER CRANK FUSE CTSY FUSE PARK LPS FUSE DAYTIME RUNNING LAMPS RELAY FUEL AUXILLARY PUMP COOLING RELAY FAN RELAY FUSE BLOCK FUSES FUSIBLE FUSIBLE LINK GENERATOR GRY WIRE HEADLIGHT SWITCH ASSEMBLY HIGH BLOWER RELAY HORN RELAY (CONVENIENCE CENTER) HTR-A/C, RR HVAC, IGNITION COIL IGNITION SWITCH LINK LOCK LOCK OFF LOW BLOWER MEDIUM RELAY BLOWER RELAY MODULE OFF ORG/ WIRE PNK WIRE POWERTRAIN CONTROL MODULE POWERTRAIN FUEL CONTROL PUMP/OIL MODULE PRESSURE (PCM) SWITCH PPL PPL/ WHT WIRE PWR RADIO DOME LAMP REAR (PCM) WINDOW RELEASE RELAY REAR WINDOW RELEASE SWITCH RED WIRE RR WPR, FRT WPR, RDO FUSES AND AND PWR WDO CIRCUIT BREAKER RUN WIRE STARTER MOTOR SOLENOID STOP FUSE SUBURBAN, UTILITY EXC. SUBURBAN, UTILITY SUBURBAN, UTILITY ONLY ENGINES W/ MANUAL TRANSMISSIONS ONLY T/G REL FUSE DRL FUSE TRANS, ECM-IGN, TURN B/U INJ, GAUGES FUSES FUSES VIN H&K MANUAL TRANS ONLY W/ AUTO TRANS W/ AUTOMATIC TRANSMISSION WHT PPL/ WIRE 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 DK BLU/WHT WIRE DK GRN WIRE FUSE BLOCK GAUGES FUSE GRY WIRE HOT IN RUN OR START LEFT FRONT POWER WINDOW MOTOR LEFT FRONT WINDOW UP LEFT REAR POWER WINDOW MOTOR LEFT REAR WINDOW DN UP LEFT REAR WINDOW SWITCH LT GRN WIRE MASTER WINDOW SWITCH PNK WIRE PNK/BLK WIRE PPL PPL PPL PPL/WHT WIRE RIGHT FRONT POWER WINDOW MOTOR RIGHT FRONT WINDOW DN UP RIGHT FRONT WINDOW SWITCH RIGHT REAR POWER WINDOW MOTOR RIGHT REAR WINDOW SWITCH RIGHT REAR WINDOW UP SWITCH ILLUMINATION LAMP TAN WIRE UP DN