GMC Rally G2500 (1985-1995) auto apply park brake Wiring diagrams

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

ACC RADIO FUSE ACCY ACCY BULB TEST LOCK ACCY BULB TEST LOCK OFF AUTO APPLY PARK BRAKE AUX CB AUX CIRCUIT BREAKER HTR FUSE AUXILIARY COOLING FAN RELAY AUXILIARY COOLING FAN RELAY DAYTIME RUNNING LAMPS BATTERY BATTERY JUNCTION BLOCK BLK WIRE BLK/RED WIRE BRAKE WARNING ALARM BUZZER BRN WIRE BULB TEST DAYTIME RUNNING LAMPS RELAY DAYTIME RUNNING LAMPS MODULE DK GRN WIRE FROM PANEL DIMMER SWITCH ASSEMBLY (INTERIOR LIGHTS SYSTEM) FUEL PUMP RELAY FUEL PUMP OIL PRESSURE SWITCH HAZARD FLASHER FUSE BLOCK FUSIBLE FUSIBLE LINK GENERATOR GRY WIRE HEADLIGHT SWITCH HORN RELAY HORN/DM I/P CLUSTER BRAKE PRESSURE WARNING SWITCH IGNITION SWITCH INSTRUMENT CLUSTER LINK LOCK OFF LPS BUS GAGES FUSE INSTR-LPS FUSE OFF ORG/ WIRE PARK BRAKE WARNING SWITCH PCM PNK WIRE PNK/ WHT WIRE PNK/BLK WIRE PNK/WHT WIRE POWERTRAIN CONTROL MODULE PPL PWR ECM-BAT CIRCUIT BREAKER FUSE RED WIRE RELAY RUN WIRE SHUNT STARTER MOTOR STOP- HZ FUSE STOPLAMP SWITCH TAIL LPS FUSE FUSE TAN/WHT WIRE TO ALT, ECM-CRNK, TURN-B/U, TRANS, INJ FUSES AND IGNITION COIL TRANSMISSION POSITION INDICATOR LAMP WHT WIRE WINDSHIELD WIPER MOTOR WIPER SWITCH MODULE WIPER FUSE YEL WIRE

ACCY ACCY BULB TEST LOCK AUDIO ALARM MODULE AUTO APPLY PARK BRAKE AUX AUX CIRCUIT BREAKER AUXILIARY COOLING FAN RELAY BATTERY BATTERY JUNCTION BLOCK BLK WIRE BLK/RED WIRE BRAKE PRESSURE WARNING SWITCH BRN WIRE BRN/WHT WIRE BULB TEST DAYTIME RUNNING LAMPS AUXILIARY COOLING FAN RELAY DAYTIME RUNNING LAMPS MODULE DAYTIME RUNNING LAMPS RELAY DK GRN WIRE DOME LAMP ECM-BAT FUSE ACC-RADIO FUSE FROM PANEL DIMMER SWITCH ASSEMBLY (INTERIOR LIGHTS SYSTEM) FUEL PUMP OIL PRESSURE SWITCH FUEL PUMP RELAY POWERTRAIN CONTROL MODULE FUSE BLOCK FUSIBLE FUSIBLE LINK GAGES FUSE GENERATOR GRY WIRE HAZARD FLASHER HEADLIGHT SWITCH ASSEMBLY HORN RELAY HTR FUSE I/P CLUSTER IGNITION SWITCH INSTR-LPS LPS BUS FUSE LINK LOCK LOCK OFF OFF ORG/ WIRE PARK BRAKE WARNING SWITCH PCM PNK WIRE PNK/ WHT WIRE PPL PWR CIRCUIT BREAKER RED WIRE RELAY RUN WIRE SHUNT STARTER MOTOR STOP- HZ FUSE STOPLAMP SWITCH TAIL LPS FUSE HORN/DM FUSE TAN/WHT WIRE TO ALT, ECM-CRANK, TURN-B/U, TRANS, INJECTOR FUSES AND IGNITION COIL TRANSMISSION INSTRUMENT AUDIO POSITION CLUSTER ALARM INDICATOR MODULE LAMP WHT PNK/ WIRE WHT WIRE WIPER FUSE WIPER SWITCH