GMC Pickup C2500 (1985-2000) dk blu Wiring diagrams

BACK BLK WIRE DK BLU WIRE DK GRN WIRE FORWARD/ REARWARD MOTOR FRONT DN FRONT TILT MOTOR FRONT UP HOT AT ALL TIMES I/P FUSE BLOCK LEFT POWER SEAT ADJUSTER SWITCH LT BLU WIRE LT GRN WIRE ORG/ WIRE PWR-ACCY CIRCUIT BREAKER REAR DN REAR UP REAR TILT MOTOR RIGHT POWER SEAT ADJUSTER SWITCH TAN WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE BULB CHECK FOG LTS ENABLE CONVENIENCE CENTER DAYTIME RUNNING LAMP INDICATOR INSTRUMENT CLUSTER DAYTIME RUNNING LAMPS MODULE (BEHIND LEFT SIDE OF I/P) DAYTIME RUNNING LAMPS RELAY (ENGINE COMPARTMENT FRONT PLENUM PANEL) DIODE DK BLU WIRE DK GRN/WHT WIRE FOG LAMP ON INDICATOR SOLID STATE SWITCH FOG LAMP RELAY FOG LAMP SWITCH GRN WIRE GRY WIRE HEAD PARK HEADLAMP DIMMER SWITCH HEADLIGHT SWITCH ASSEMBLY HI BEAM INDICATOR HI LO HOT AT ALL TIMES HOT AT ALL TIMES DRL-FOG FUSE 15 HOT IN RUN, BULB TEST OR START FUSE BLOCK GAUGES FUSE 4 ILLUM LAMP LAMP FEED HI BEAM FEED HI BEAM INDICATOR LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP LT GRN WIRE LT GRN/BLK WIRE OFF OFF HEAD ORG/ WIRE OUTPUT TO RELAY GROUND PARK PARK BRAKE WARNING SWITCH (AT PARK BRAKE, UNDER LEFT SIDE OF I/P) PICKUP EXT. CAB PNK IGNITION WIRE PNK WIRE PPL PPL LEFT FOG LAMP PPL RIGHT FOG LAMP RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP SUBURBAN PICKUP UTILITY EXT. CAB CREW CAB SUBURBAN UTILITY CREW CAB TAN WIRE TAN/WHT WIRE WHT WIRE YEL WIRE

BLK WIRE BRN WIRE BULB CHECK FOG LTS ENABLE CONVENIENCE CENTER DAYTIME RUNNING LAMP INDICATOR INSTRUMENT CLUSTER DAYTIME RUNNING LAMPS MODULE (BEHIND LEFT SIDE OF I/P) DAYTIME RUNNING LAMPS RELAY (ENGINE COMPARTMENT FRONT PLENUM PANEL) DIODE DK BLU WIRE DK GRN/WHT WIRE FOG LAMP ON INDICATOR SOLID STATE SWITCH FOG LAMP RELAY FOG LAMP SWITCH GRN WIRE GRY WIRE HEAD PARK HEADLAMP DIMMER SWITCH HEADLIGHT SWITCH ASSEMBLY HI BEAM INDICATOR HI LO HOT AT ALL TIMES HOT AT ALL TIMES DRL-FOG FUSE 15 HOT IN RUN, BULB TEST OR START FUSE BLOCK GAUGES FUSE 4 ILLUM LAMP LAMP FEED HI BEAM FEED HI BEAM INDICATOR LEFT HEADLAMP ASSEMBLY HI LO LT GRN WIRE LT GRN/BLK WIRE OFF OFF HEAD ORG/ WIRE OUTPUT TO RELAY GROUND PARK PARK BRAKE WARNING SWITCH (AT PARK BRAKE, UNDER LEFT SIDE OF I/P) PICKUP EXT. CAB PNK IGNITION WIRE PNK WIRE PPL PPL LEFT FOG LAMP PPL RIGHT FOG LAMP RIGHT HEADLAMP ASSEMBLY HI LO SUBURBAN PICKUP UTILITY EXT. CAB CREW CAB SUBURBAN UTILITY CREW CAB TAN WIRE TAN/WHT WIRE WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BULB CHECK DAYTIME RUNNING LAMP INDICATOR DAYTIME RUNNING LAMPS MODULE (BEHIND LEFT SIDE OF I/P) DAYTIME RUNNING LAMPS RELAY (ENGINE COMPARTMENT FRONT PLENUM PANEL) DK BLU WIRE GRN WIRE HEAD PARK HEADLAMP DIMMER SWITCH HEADLIGHT SWITCH ASSEMBLY HI BEAM INDICATOR HOT AT ALL TIMES HOT AT ALL TIMES DRL-FOG FUSE 15 HOT IN RUN, BULB TEST OR START FUSE BLOCK GAUGES FUSE 4 INSTRUMENT CLUSTER LAMP FEED HI BEAM FEED HI BEAM INDICATOR LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP LT GRN WIRE LT GRN/BLK WIRE OFF OFF HEAD ORG/ WIRE OUTPUT TO RELAY GROUND PARK PARK BRAKE WARNING SWITCH (AT PARK BRAKE, UNDER LEFT SIDE OF I/P) PNK IGNITION 10 10 WIRE PNK WIRE RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP TAN WIRE TAN/WHT WIRE WHT WIRE YEL WIRE

BLK WIRE BRN WIRE DK BLU WIRE FOG LAMP ON INDICATOR SOLID STATE SWITCH FOG LAMP RELAY (BEHIND LEFT SIDE OF I/P) FOG LAMP SWITCH GRN WIRE GRY WIRE HEADLAMP DIMMER SWITCH HEADLIGHT SWITCH ASSEMBLY HI BEAM INDICATOR HI LO HOT AT ALL TIMES HOT AT ALL TIMES FUSE BLOCK DRL-FOG FUSE ILLUM LAMP INSTRUMENT CLUSTER LEFT LOW BEAM HEAD- LAMP LT GRN WIRE OFF OFF HEAD HEAD PARK ORG/ WIRE PARK PPL PPL PPL RIGHT FOG LAMP LEFT FOG LAMP RIGHT HIGH BEAM HEAD- LAMP LEFT HIGH BEAM HEAD- LAMP RIGHT LOW BEAM HEAD- LAMP TAN WIRE WHT WIRE YEL WIRE

BLK WIRE BULB CHECK DAYTIME RUNNING LAMP INDICATOR DAYTIME RUNNING LAMPS MODULE (BEHIND LEFT SIDE OF I/P) DAYTIME RUNNING LAMPS RELAY (ENGINE COMPARTMENT FRONT PLENUM PANEL) DK BLU WIRE GRN WIRE HEAD PARK HEADLAMP DIMMER SWITCH HEADLIGHT SWITCH ASSEMBLY HI BEAM INDICATOR HOT AT ALL TIMES HOT AT ALL TIMES DRL-FOG FUSE HOT IN RUN, BULB TEST OR START FUSE BLOCK GAUGES FUSE 4 INSTRUMENT CLUSTER LAMP FEED HI BEAM FEED HI BEAM INDICATOR LEFT HEADLAMP ASSEMBLY HI LT GRN WIRE LT GRN/BLK WIRE OFF OFF HEAD ORG/ WIRE OUTPUT TO RELAY GROUND PARK PARK BRAKE WARNING SWITCH (AT PARK BRAKE, UNDER LEFT SIDE OF I/P) PNK IGNITION 10 10 WIRE PNK WIRE RIGHT HEADLAMP ASSEMBLY HI LO TAN WIRE TAN/WHT WIRE WHT WIRE YEL WIRE

BLK WIRE BRN WIRE DK BLU WIRE FOG LAMP ON INDICATOR SOLID STATE SWITCH FOG LAMP RELAY (BEHIND LEFT SIDE OF I/P) FOG LAMP SWITCH GRN WIRE GRY WIRE HEADLAMP DIMMER SWITCH HEADLIGHT SWITCH ASSEMBLY HI BEAM INDICATOR HI LO HOT AT ALL TIMES HOT AT ALL TIMES FUSE BLOCK DRL-FOG FUSE ILLUM LAMP INSTRUMENT CLUSTER LEFT HEADLAMP ASSEMBLY LO HI LT GRN WIRE OFF OFF HEAD HEAD PARK ORG/ WIRE PARK PPL PPL PPL RIGHT FOG LAMP LEFT FOG LAMP RIGHT HEADLAMP ASSEMBLY TAN WIRE WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) DK BLU WIRE DOWN DOWN AUTO WINDOW DOWN MODULE DOWN UP HOT IN RUN I/P FUSE BLOCK (UNDER LEFT SIDE OF DASH) LEFT FRONT LEFT FRONT WINDOW MOTOR LEFT POWER WINDOW MASTER SWITCH LT BLU WIRE PWR WDO CIRCUIT BREAKER RIGHT FRONT RIGHT FRONT WINDOW MOTOR RIGHT FRONT WINDOW SWITCH SOLID STATE TAN WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE DK PPL DOWN HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES HOT IN RUN I/P FUSE BLOCK (UNDER LEFT SIDE OF DASH) LEFT FRONT LEFT FRONT POWER WINDOW MASTER SWITCH LEFT FRONT WINDOW MOTOR LEFT REAR LEFT REAR WINDOW MOTOR LEFT REAR WINDOW SWITCH LT BLU WIRE LT GRN WIRE ORG/ WIRE PK LPS FUSE PPL PWR WDO CIRCUIT BREAKER RIGHT FRONT RIGHT FRONT WINDOW MOTOR RIGHT FRONT WINDOW SWITCH RIGHT REAR RIGHT REAR WINDOW MOTOR RIGHT REAR WINDOW SWITCH SOLID STATE TAN WIRE UP DOWN WINDOW LOCKOUT SWITCH YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 RR+ RR- ANTENNA BARE BLK WIRE BRN WIRE CIG LTR FUSE 13 DIESEL GAS DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACC OR RUN I/P FUSE BLOCK LEFT FRONT SPEAKER LEFT FRONT TWEETER LEFT REAR DOOR SPEAKER LEFT REAR SPEAKER LR DR - RLY SIG GROUND LR DR + LR+ LR- RR DR + LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE POWER AMPLIFIER (UNDER LEFT SIDE OF DASH) POWER AMPLIFIER RELAY (UNDER LEFT SIDE OF DASH) PPL/WHT WIRE RADIO RADIO BATT FUSE 19 RADIO FUSE 17 RED WIRE REMOTE AUDIO PLAYER RIGHT FRONT SPEAKER RIGHT FRONT TWEETER RIGHT REAR DOOR SPEAKER RIGHT REAR SPEAKER RR DR - SERIAL DATA VSS SIGNAL RR - RR + LR _ LR + TAN WIRE VEHICLE CONTROL MODULE (LEFT SIDE OF ENGINE COMPARTMENT) VEHICLE SPEED SENSOR BUFFER (BEHIND RIGHT SIDE OF DASH) VSS SIGNAL WHT WIRE YEL WIRE