GMC Forward Control P3500 (1985-1999) pnk Wiring diagrams

1-2 SHIFT SOL 1-2 SHIFT SOLENOID 2-3 SHIFT SOL 2-3 SHIFT SOLENOID A/C COMPRESSOR RELAY, GENERATOR, SEAT BELT/ HEADLAMPS ALARM MODULE A/T INPUT SPEED SENSOR (LEFT SIDE OF TRANSMISSION) A/T ISS HI IN A/T ISS LO IN A/T OUTPUT SPEED SENSOR ANTI-LOCK BRAKES, CRUISE CONTROL, SHIFT INTERLOCK SYSTEMS AUTOMATIC TRANSMISSION BATTERY IN BLK WIRE BLK/WHT WIRE BRAKE SWITCH INPUT BRN WIRE BRN/WHT WIRE BUSS BAR GAUGES FUSE 8 DATA CLASS II DK BLU WIRE DK BLU/WHT WIRE ECM 1 FUSE 12 ECM-BAT FUSE 6 ECT SENS INPUT ELECTRONIC BRAKE CONTROL MODULE, CRUISE CONTROL MODULE ENGINE CONTROLS SYSTEM FUEL INJECTORS (ENGINE CONTROLS SYSTEM) FUEL PUMP RELAY, SWITCH GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START I-3 FUSE 9 I/P FUSE BLOCK IGNITION IN INSTRUMENT CLUSTER LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MIL CONTROL ORG/ WIRE PCM GROUND PCS SOL HI OUT PCS SOL LO OUT PNK WIRE PPL PPL DATA LINK CONNECTOR (PARTIAL) (BELOW DASH NEAR STEERING COLUMN) PPL/WHT WIRE PRESS CTRL SOLENOID RANGE SIGNAL "A" RANGE SIGNAL "B" RANGE SIGNAL "C" RED WIRE RED/BLK WIRE SENSOR GROUND SENSOR RETURN SERVICE ENGINE SOON INDICATOR TCC PWM SOL TCC PWM SOLENOID TCC/ STOP LAMPS SWITCH TP SENS INPUT TRANS FLUID TEMP SENSOR TRANS FUSE 17 TRANS RANGE PRESSURE SWITCH ASSEMBLY TRANS TEMP SIG IN TWISTED WIRE PAIR VEHICLE CONTROL MODULE (CENTER FRONT OF ENGINE COMPT) VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VSS HI VSS LO YEL WIRE YEL/BLK WIRE

AUTO APPLY FUSE 19 HOT IN I/P FUSE BLOCK LEFT BACKUP LAMP LT GRN WIRE PARK/NEUTRAL POSITION (PNP), BACKUP LAMP SWITCH (LEFT SIDE OF TRANSMISSION) PNK WIRE PROVISION FOR BACKUP LAMPS RIGHT BACKUP LAMP RUN WIRE

BLK WIRE BLU WIRE BREAKOUT FOR HEADLAMP SWITCH) BULB TEST DAYTIME RUNNING LAMPS MODULE (ATTACHED TO I/P HARNESS AT STEERING COLUMN) DAYTIME RUNNING LAMPS RELAY (ON MAIN SUPPORT BRACKET AT DRIVER'S ISLAND) DAYTIME RUNNING LAMPS RELAY 2 DIODE NETWORK DK BLU WIRE DK GRN/WHT WIRE DRL INDICATOR FOR LEFT HEADLAMP) FUSIBLE LINK (16 GA- GAUGES FUSE GRN WIRE HEAD- LAMP DIMMER SWITCH HEADLAMPS SWITCH HI BEAM INDICATOR HI LO HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK IGNITION SWITCH INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT HEAD- LAMP LEFT HIGH BEAM HEAD- LAMP LO HI LOCK OFF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PARK BRAKE IN FOG LAMPS PARK BRAKE INDICATOR SWITCH (ON PARK BRAKE) PARK HEAD OFF PNK IGNITION LAMP FEED HI BM FEED HI BM INDICATOR RELAY OUT GROUND WIRE PNK WIRE RED WIRE RIGHT HEAD- LAMP RIGHT HIGH BEAM HEAD- LAMP RUN WIRE TAN WIRE WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BREAKOUT FOR HEADLAMP SW) BULB TEST DAYTIME RUNNING LAMPS MODULE (ATTACHED TO I/P HARNESS AT STEERING COLUMN) DAYTIME RUNNING LAMPS RELAY (ON MAIN SUPPORT BRACKET AT DRIVER'S ISLAND) DIODE NETWORK DK BLU WIRE DK GRN/WHT WIRE DRL INDICATOR FUSIBLE LINK (16 GA- GAUGES FUSE GRN WIRE HEAD- LAMP DIMMER SWITCH HEADLAMPS SWITCH HI BEAM INDICATOR HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK IGNITION SWITCH INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT HEAD- LAMP LO HI HI LO LOCK OFF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT LT ORG/ WIRE PARK BRAKE IN FOG LAMPS PARK BRAKE INDICATOR SWITCH (ON PARK BRAKE) PARK HEAD OFF PNK IGNITION LAMP FEED HI BM FEED HI BM INDICATOR RELAY OUT GROUND WIRE PNK WIRE RED WIRE RIGHT HEAD- LAMP RUN WIRE TAN WIRE WHT WIRE YEL WIRE

4.3L A/T ACC BUS AUTOMATIC TRANSMISSION AUXILIARY ENGINE COOLANT FAN RELAY BRN WIRE CAMSHAFT POSITION SENSOR (5.7L) CLUTCH PEDAL POSITION SWITCH COLD ADVANCE SOLENOID AND ENGINE COOLANT TEMPERATURE SWITCH FUEL HEATER CRANK FUSE 18 CRK (START) LOCK ON (RUN) OFF CRK (START) ON (RUN) LOCK OFF CRK (START) ON (RUN) OFF DIESEL DK BLU WIRE ENG 1 FUSE 15 ENGINE SHUT-OFF SOLENOID FUEL SOLENOID DRIVER EVAP CANISTER VENT VALVE (4.3L) EVAPORATIVE EMISSIONS CANISTER PURGE VALVE FROM FUSIBLE LINK GAS GLOW PLUG CONTROLLER HEATED OXYGEN SENSOR BANK 1 SENSOR 1 CAMSHAFT POSITION SENSOR (4.3L) HEATED OXYGEN SENSOR BANK 2 SENSOR 1 HEATED OXYGEN SENSOR BANK 1 SENSOR 2 HEATED OXYGEN SENSOR BANK 2 SENSOR 2 IGNITION SWITCH IN-LINE FUSE BLOCK (NEAR RIGHT SIDE OF STEERING COLUMN) LOCK M/T MASS AIR FLOW SENSOR (4.3L/ 5.7L) ORG/ WIRE PARK/NEUTRAL POSITION AND BACKUP LAMPS SWITCH PNK PNK WIRE PNK WIRE PROVISIONS FOR WINDSHIELD WASHER MOTOR RADIO FUSE 4 RED WIRE TO I/P FUSE BLOCK (DIAGRAM 4 OF 4) TRANS FUSE 17 WATER IN FUEL INDICATOR SENSOR WHT WIRE WINDSHIELD WIPER/ WASHER SWITCH WIPER FUSE 14 YEL WIRE

5.7L VIN R CRANKSHAFT POSITION SENSOR ECM 1 FUSE 12 FROM BREAKOUT TO RIGHT OXYGEN SENSOR) FROM ENG-1 FUSE (DIAGRAM 2 OF 4) FUEL INJECTOR 1 FUEL INJECTOR 2 FUEL INJECTOR 3 FUEL INJECTOR 4 FUEL INJECTOR 5 FUEL INJECTOR 6 FUEL INJECTOR 7 FUEL INJECTOR 8 I/P FUSE BLOCK (DASH PANEL PROVIDED BY BODY BUILDER) IGNITION COIL IGNITION COIL VEHICLE CONTROL MODULE IGNITION CONTROL MODULE INSTRUMENT CLUSTER INSTRUMENT CLUSTER IGNITION CONTROL MODULE PNK PNK WIRE PNK WIRE VEHICLE CONTROL MODULE

1996 VFTC 6.5L ENGINE A/C COMPRESSOR RELAY A/T AUX CIRCUIT BREAKER 13 AUX FUSE BACK UP LAMPS SWITCH BRN WIRE CB CB I-3 FUSE 9 DAYTIME RUNNING LAMP RELAY INSTRUMENT CLUSTER DAYTIME RUNNING LAMPS CONTROL MODULE DIESEL DK GRN WIRE ECM 1 FUSE 12 ELECTRONIC BRAKE CONTROL MODULE FROM ENG-1 FUSE (DIAGRAM 2 OF 4) FROM IGNITION SWITCH (DIAGRAM 2 OF 4) FROM VCM BREAKOUT) FUEL INJECTION PUMP SHUT-OFF SOLENOID GAS GAUGES FUSE 8 GENERATOR GENERATOR GLOW PLUG CONTROLLER (FEDERAL) GRY WIRE HTR BUS HTR FUSE 1 I/P FUSE BLOCK (DASH PANEL PROVIDED BY BODY BUILDER) IGN BUS INSTRUMENT CLUSTER INSTRUMENT LAMPS FUSE INTERIOR LIGHTS SYSTEM (I/P LAMPS DIMMER SWITCH) M/T ORG/ WIRE OTHERS PARK/ NEUTRAL POSITION AND BACKUP LAMPS SWITCH PNK (ENGINE HARNESS, APPROX 26 CM FROM BULKHEAD GROMMET) WIRE PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (ELEC) SEAT BELTS ALARM MODULE TORQUE CONVERTER CLUTCH, STOP LAMPS SWITCH TURN B/U FUSE 5 TURN SIGNAL FLASHER VEHICLE CONTROL MODULE (VCM) WATER IN FUEL INDICATOR SENSOR FUEL HEATER GLOW PLUG CONTROLLER (CALIF)

6.5L VIN F AUTO APPLY FUSE 19 AUTOMATIC TRANSMISSION BRN WIRE CRANK FUSE 18 DAYTIME RUNNING LAMP CONTROL MODULE DIESEL DIODE NETWORK DK BLU WIRE ENG-1 FUSE TRANS FUSE 17 ENGINE SHUT OFF SOLENOID EVAPORATIVE EMISSIONS CANISTER PURGE VALVE SOLENOID FROM FUSE PANEL) FROM FUSIBLE LINK (DIAGRAM 1 OF 4) FROM I/P FUSE BLOCK) PNK WIRE FUEL SOLENOID DRIVER HARN BREAKOUT) PNK WIRE HEATED OXYGEN SENSOR BANK 1 SENSOR 2 HEATED OXYGEN SENSOR BANK 2 SENSOR 1 CAMSHAFT POSITION SENSOR FAN CONTROL RELAY HEATED OXYGEN SENSOR BANK 2 SENSOR 2 I/P FUSE BLOCK (MOUNTED ON THE DASH) IGNITION SWITCH INSTRUMENT CLUSTER BREAKOUT) INSTRUMENT CLUSTER ENGINE COOLANT LEVEL SWITCH LOCK OFF LT BLU WIRE MASS AIR FLOW SENSOR HEATED OXYGEN SENSOR BANK 1 SENSOR 1 NCA WIRE ORG/ WIRE PARK BRAKE ALARM PARK BRAKE ALARM RELAY PARK BRAKE LOW PRESSURE INDICATOR SWITCH PARK BRAKE PULL BUTTON SWITCH PARK BRAKE PULL BUTTON RELAY PARK BRAKE SWITCH PARK/ NEUTRAL POSITION AND BACKUP LAMPS SWITCH PARK/NEUTRAL POSITION AND BACKUP LAMPS SWITCH PASSTHROUGH 6.5L: ENG HARN, PNK DIMMER SWITCH WIRE PNK PNK WIRE PNK WIRE RADIO FUSE 4 RED WIRE RELAY SOCKETS) RUN WIRE TO AUX FUSE (DIAGRAM 4 OF 4) TO GAUGES FUSE (DIAGRAM 4 OF 4) WHT WIRE WINDSHIELD WIPER MOTOR WIPER FUSE 14 YEL WIRE YEL/BLK WIRE

6.5L VIN F CRANKSHAFT POSITION SENSOR ECM 1 FUSE 12 FEDERAL FROM GAUGES FUSE DIAGRAM 4 OF 4) FUEL HEATER GLOWPLUG CONTROLLER I/P FUSE BLOCK (MOUNTED ON THE DASH) IGNITION COIL IGNITION CONTROL MODULE INJECTOR 1 INJECTOR 2 INJECTOR 3 INJECTOR 4 INJECTOR 5 INJECTOR 6) INJECTOR 7 (-) INJECTOR 8 (-) INSTRUMENT CLUSTER PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE VEHICLE CONTROL MODULE VEHICLE SPEED SENSOR CALIBRATOR WASTEGATE SOLENOID GLOWPLUG CONTROLLER WATER IN FUEL INDICATOR SENSOR

1996 VFTC 7.4L VIN J ENGINE 7.4L VIN J ENGINES A/C COMPRESSOR RELAY GENERATOR AUX CIRCUIT BREAKER 13 BRN WIRE BUSS BAR CANADIAN MODELS CRUISE CONTROL MODULE CRUISE CONTROL SWITCH DAYTIME RUNNING LAMP RELAY DK GRN WIRE ELECTRONIC BRAKE CONTROL MODULE FROM ENG-1 FUSE (DIAGRAM 2 OF 4) FROM IGNITION SWITCH (DIAGRAM 2 OF 4) GAUGES FUSE 8 GRY WIRE HTR FUSE 1 I-3 FUSE 9 I/P FUSE BLOCK (MOUNTED ON THE DASH) INSTR LPS FUSE 16 INSTRUMENT CLUSTER INTERIOR LIGHTS SYSTEM (INSTRUMENT PANEL DIMMER SWITCH) NCA WIRE ORG/ WIRE PNK PNK WIRE PNK WIRE SEATBELT/ LAMPS ALARM MODULE DAYTIME RUNNING LAMP CONTROL MODULE TO ECM 1 FUSE DIAGRAM 3 OF 4) TORQUE CONVERTER CLUTCH AND STOP LAMPS SWITCH TURN B/U FUSE 5 TURN SIGNAL FLASHER VEHICLE CONTROL MODULE WIPER MOTOR BREAKOUT) PNK WIRE