GMC Rally G2500 (1985-1995) org/ Wiring diagrams

BATTERY JUNCTION BLOCK BLK WIRE FRONT DOME LAMP FUSE BLOCK FUSIBLE LINK (20 GA-RUST) HORN/DM FUSE HOT AT ALL TIMES IN LINE UNDERHOOD LAMP FUSE LEFT DOOR JAMB SWITCH LIGHT SWITCH DOME SWITCH NCA WIRE ORG/ WIRE REAR DOME LAMP RED WIRE RIGHT DOOR JAMB SWITCH SIDE DOOR JAMB SWITCH UNDERHOOD LAMP WHT WIRE

BATTERY JUNCTION BLOCK (LEFT SIDE OF COWL) BLK WIRE DOME SWITCH FRONT DOME LAMP FRONT DOME/ READING LAMPS FUSE BLOCK- I/P FUSIBLE LINK (20 GA-RUST) HEADLIGHT SWITCH HORN/DM FUSE HOT AT ALL TIMES IN LINE UNDERHOOD LAMP FUSE INTERIOR LIGHTING CONTROL SWITCH KEYLESS ENTRY MODULE LEFT DOOR JAMB SWITCH LEFT STEP- WELL LAMP LEFT VANITY MIRROR LAMP OPTIONAL ORG/ WIRE REAR DOME LAMP REAR DOME READING LAMPS REAR DOOR JAMB SWITCH RED WIRE RIGHT DOOR JAMB SWITCH RIGHT STEP- WELL LAMP RIGHT VANITY MIRROR LAMP SIDE DOOR JAMB SWITCH UNDERHOOD LAMP W/ LAMP GROUP W/KEYLESS ENTRY W/O KEYLESS ENTRY W/O LAMP GROUP WHT WIRE

1995 VFTC 4.3L, 7.4L ONLY 5.7L, 6.5L ONLY ACCY ALT FUSE AUTO APPLY PARK BRAKE BLK WIRE BLK/ORG WIRE BRAKE PRESSURE WARNING SWITCH (REAR OF ENGINE COMPT) BRN/WHT WIRE BULB TEST COOLANT TEMP GAUGE DAYTIME RUNNING LAMPS MODULE DAYTIME RUNNING LIGHTS IND DIESEL DIESEL ONLY DK BLU (OR BRN) WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/BLK WIRE ECM-CRNK FUSE ENGINE CONTROLS OR TRANSMISSIONS SYSTEM ENGINE COOLANT LEVEL INDICATOR MODULE ENGINE COOLANT LEVEL INDICATOR PROBE (IN RADIATOR) (FRONT OF ENGINE) ENGINE COOLANT TEMPERATURE SENDER (LEFT SIDE OF ENGINE) FASTEN BELTS IND. FUEL GAUGE FUEL PUMP, SENDER (IN FUEL TANK) FUEL PUMP/ OIL PRESSURE SWITCH, SENDER (LEFT SIDE OF ENGINE) FUSE BLOCK FUSIBLE LINK GAUGES FUSE GLOW PLUG CONTROLLER (REAR OF ENGINE) GLOW PLUGS IND. (DIESEL) GRY WIRE GRY/RED WIRE HEADLIGHTS SYSTEM HI-BEAM IND HOT IN RUN HOT IN RUN, BULB TEST OR START I/P GROUND (IN I/P HARNESS) IGNITION SWITCH ILLUM. LAMPS INSTRUMENT CLUSTER LEFT TURN IND LOW COOLANT IND. (DIESEL) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MAL- FUNCTION IND OFF OIL PRESS GAUGE ORG/ WIRE PARK BRAKE IND PARK BRAKE WARNING SWITCH (PARK BRAKE SUPPORT BRACKET) PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (LEFT SIDE OF SHIPPING PANEL) RIGHT FRAME RAIL) RIGHT TURN IND RUN WIRE SERVICE BRAKES IND. SERVICE TRANS- MISSION IND. SPEED- OMETER TAN WIRE TAN/WHT WIRE TRANSMISSIONS SYSTEM VEHICLE SPEED SENSOR (REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (BEHIND RIGHT SIDE OF I/P) VOLT- METER W/ DRL W/ DRL LOCK W/O DRL WARNING SYSTEMS WATER IN FUEL IND. (DIESEL) WATER-IN-FUEL SENSOR (DIESEL ONLY) (REAR OF ENGINE) WHT WIRE YEL WIRE YEL/BLK WIRE

AUDIO ALARM MODULE (BELOW I/P FUSE BLOCK) LIGHTS ON INPUT BLK WIRE BRN WIRE DK GRN WIRE FUSE BLOCK- I/P FUSE BLOCK: I/P INSTR LPS FUSE GRY WIRE HEADLIGHT SWITCH HEATER, A/C CONTROL ILLUM. LAMP HIGH DIM HOT AT ALL TIMES I/P DIMMER SWITCH INSTRUMENT CLUSTER LIGHT SWITCH OFF HEAD PARK ORG/ WIRE PRNDL ILLUM. LAMP RADIO SOLID STATE TAIL LPS FUSE

BLK WIRE BRN WIRE DK GRN WIRE FUSE BLOCK- I/P GRY WIRE HEADLIGHT SWITCH HIGH DIM HOT AT ALL TIMES I/P DIMMER SWITCH INSTR LPS FUSE INSTRUMENT CLUSTER LIGHT SWITCH OFF HEAD PARK ORG/ WIRE TAIL LPS FUSE TRANSMISSION RANGE INDICATOR LAMP

BLK WIRE BRN WIRE DK GRN WIRE FRONT DOME LAMP FUSE BLOCK- I/P FUSE BLOCK: I/P INSTR LPS FUSE GRY WIRE HEAD- LIGHT SWITCH DOME SWITCH HEADLIGHT SWITCH HIGH DIM HORN/DM FUSE HOT AT ALL TIMES I/P DIMMER SWITCH INSTRUMENT CLUSTER LEFT DOOR JAMB SWITCH LIGHT SWITCH OFF HEAD PARK ORG/ WIRE PROVISIONS FOR REAR DOME LAMP RADIO SOLID STATE TAIL LPS FUSE TRANS- MISSION RANGE INDICATOR LAMP HEATER CONTROL LAMP WHT WIRE

BLK WIRE BRN WIRE DK GRN WIRE DOME LAMP FUSE BLOCK GRY WIRE HEADLIGHT SWITCH ASSEMBLY HIGH DIM HORN/DM FUSE HOT AT ALL TIMES I/P LPS FUSE INSTRUMENT CLUSTER LIGHT SWITCH OFF HEAD PARK ORG/ WIRE PANEL DIMMER SWITCH (ASSEMBLY) PANEL DIMMER SWITCH ASSEMBLY DOME SWITCH TAIL LPS FUSE TRANSMISSION RANGE INDICATOR LAMP WHT WIRE

ANTENNA BLK WIRE BUS BAR CIRCUIT BREAKER COAXIAL CABLE DK GRN WIRE DOWN FUSE BLOCK GRY WIRE HORN- DM FUSE HOT AT ALL TIMES IN-LINE FUSE ORG/ WIRE PNK WIRE POWER ANTENNA POWER ANTENNA RELAY RADIO RED WIRE WHT WIRE

ACC RADIO FUSE ACCY BATTERY JUNCTION BLOCK BLK WIRE BODY BUILDER'S DAYTIME RUNNING LAMPS JUNCTION BLOCK RELAY BRAKE WARNING SYSTEM (WARNING SYSTEMS) BRN WIRE BULB TEST CLUTCH DAYTIME RUNNING LAMPS MODULE WIPER MOTOR DK GRN WIRE ECM BAT FUSE FROM PANEL DIMMER SWITCH FROM PARK BRAKE WARNING SWITCH FUEL CYCLE MODULE DAYTIME RUNNING LAMPS RELAY FUEL PUMP RELAY, FUEL PUMP/ OIL PRESSURE SWITCH FUSE BLOCK FUSE BLOCK, GLOW PLUG CONTROLLER FUSIBLE FUSIBLE LINK E GAGES FUSE SHUNT GENERATOR GRY WIRE HAZARD FLASHER HEADLIGHT SWITCH ASSEMBLY HORN RELAY HORN/DM TAIL LPS FUSE FUSE HTR FUSE IGNITION SWITCH INSTR LPS FUSE INSTRUMENT TRANSMISSION CLUSTER RANGE INDICATOR LAMP LINK A LINK B LINK C LINK D LINK F LOCK LOCK OFF OFF ORG/ WIRE PCM PNK WIRE PNK/WHT WIRE POWERTRAIN CONTROL MODULE PPL RED WIRE RIGHT FRONT BATTERY LEFT REAR BATTERY RUN WIRE SHUNT STARTER RELAY STARTER SOLENOID STOP- HZ FUSE STOPLAMP SWITCH SWITCH TAN/WHT WIRE TO GLOW PLUG CONTROLLER W/ AUTO TRANSMISSION W/ MANUAL TRANSMISSION ONLY PPL WHT WIRE WIPER FUSE WIPER SWITCH

1995 VFTC ACC RADIO FUSE ACCY ACCY BULB TEST LOCK OFF ALT, ECM-CRANK, TURN-B/U, TRANS AND INJ FUSES BATT BUS BATTERY BATTERY JUNCTION BLOCK BLK WIRE BLK/RED WIRE BODY BUILDER'S JUNCTION BLOCK BRAKE WARNING SYSTEM (WARNING SYSTEMS) BRN WIRE BULB TEST CLUTCH DAYTIME RUNNING LAMPS HORN RELAY DAYTIME RUNNING LAMPS RELAY DAYTIME RUNNING LAMPS MODULE DK GRN WIRE ECM-BAT FUSE ACC BUS EXHAUST GAS REGULATOR SOLENOID VALVE GENERATOR FUEL CYCLE MODULE FUEL PUMP RELAY, FUEL PUMP/ OIL PRESSURE SWITCH FUSE BLOCK FUSIBLE LINK A FUSIBLE LINK C FUSIBLE LINK D GAGES FUSE SHUNT GENERATOR GRY WIRE HAZARD FLASHER HEADLIGHT SWITCH ASSEMBLY HEATED OXYGEN SENSOR (VIN Z) HORN/DM FUSE HTR FUSE HTR BUS IGNITION SWITCH INSTR-LPS CRANK FUSE FUSE LINK B FUSIBLE LOCK LOCK OFF OFF ORG/ WIRE PARK BRAKE WARNING SWITCH PCM PNK WIRE PNK/WHT WIRE POWERTRAIN CONTROL MODULE PPL RED WIRE RELAY RUN WIRE SHUNT STARTER SOLENOID STOP- HZ FUSE STOPLAMP SWITCH SWITCH PANEL DIMMER SWITCH (INTERIOR LIGHTS SYSTEM) TAIL LPS FUSE TAN/WHT WIRE TRANSMISSION CONTROL MODULE W/ AUTO TRANS WHT WIRE WIPER FUSE WIPER MOTOR WIPER SWITCH WITH MANUAL TRANSMISSION ONLY