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

BLK WIRE BLU WIRE BRN WIRE DAYTIME RUNNING LAMP CUTOFF RELAY DAYTIME RUNNING LAMP INDICATOR DAYTIME RUNNING LAMPS MODULE (IN I/P HARNESS) DAYTIME RUNNING LAMPS RELAY (IN I/P HARNESS) DK BLU/WHT WIRE DK GRN/YEL WIRE GRN WIRE HEAD PARK HEADLAMP DIMMER SWITCH HEADLIGHT SWITCH ASSEMBLY HI BEAM INDICATOR HI LO HORN/DM FUSE HOT AT ALL TIMES HOT IN RUN OR START FUSE BLOCK HTR FUSE INSTRUMENT CLUSTER LEFT HEADLAMP ASSEMBLY LEFT LOWER HEADLAMP (W/ HPR) LT GRN WIRE LT GRN/BLK WIRE OFF OFF HEAD ORG/ WIRE PARK PARK BRAKE WARNING SWITCH (AT PARK BRAKE, UNDER LEFT SIDE OF I/P) PROVISIONS FOR FOG LAMPS RIGHT HEADLAMP ASSEMBLY RIGHT LOWER HEADLAMP (W/ HPR) TAN WIRE TAN/WHT WIRE WHT WIRE YEL WIRE

0.5 WATT) 1995 VFTC BLK WIRE BLK/YEL WIRE BRAKE IND BRAKE PRESSURE WARNING SWITCH (ON LEFT FRAME RAIL) IGNITION SWITCH BRAKE WARNING ALARM BUZZER (BEHIND LEFT SIDE OF I/P, NEAR FUSE BLOCK) BRN WIRE BRN/WHT WIRE COOLANT TEMP GAUGE CRUISE CONTROL SYSTEM DAYTIME RUNNING LAMPS IND DAYTIME RUNNING LAMPS MODULE (BEHIND LEFT SIDE OF I/P, ABOVE STEERING COLUMN) DAYTIME RUNNING LAMPS RELAY (BEHIND LEFT SIDE OF I/P, ABOVE STEERING COLUMN) DK BLU WIRE DK GRN WIRE DK GRN/YEL WIRE ELECTRONIC DELAY MODULE (BEHIND LEFT SIDE OF I/P, ON PARK BRAKE SUPPORT BRACKET) ENGINE CONTROLS SYSTEM FLOW SWITCH (NEAR POWER STEERING PUMP) FUEL GAUGE FUSE BLOCK GAGES FUSE GRY WIRE HEADLIGHTS SYSTEM HI-BEAM IND HOT IN RUN OR START HYDRO-BOOST PRESSURE WARNING SWITCH (NEAR MASTER CYLINDER) ILLUM LAMP ILLUM. LAMPS IN-LINE DIODE (BEHIND LEFT SIDE OF I/P, ABOVE FUSE BLOCK) IN-LINE DIODE (BEHIND LEFT SIDE OF I/P, ABOVE STEERING COLUMN) INSTRUMENT CLUSTER LEFT TURN IND LOW COOLANT IND LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MAL- FUNCTION IND OIL PRESS GAUGE PARK BRAKE WARNING SWITCH PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (UNDER DRIVER'S SEAT) PPL RESISTOR RIGHT TURN IND SAFETY BELT IND SPEED- OMETER TAN WIRE TAN/WHT WIRE VEHICLE SPEED SENSOR (REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (BEHIND LEFT SIDE OF I/P) VOLT- METER W/ DRL W/ DRL PPL PPL W/O DRL WARNING SYSTEMS WHT WIRE YEL WIRE

1995 VFTC ACCY ALT FUSE AUDIO ALARM MODULE CONVENIENCE CENTER BLK WIRE BRAKE IND BRAKE PRESSURE WARNING SWITCH (NEAR MASTER CYLINDER) BRAKE WARNING ALARM BUZZER MODULE (BRAKE WARNING HARNESS) BRN WIRE BRN/WHT WIRE BULB TEST COOLANT TEMP GAUGE DAYTIME RUNNING LAMPS MODULE (TOP RIGHT SIDE OF SHIPPING HARNESS) DAYTIME RUNNING LAMPS RELAY DAYTIME RUNNING LIGHTS IND DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/YEL WIRE ELECTRONIC DELAY MODULE (BRAKE WARNING HARNESS) ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENDER (LEFT FRONT OF ENGINE) FLOW SWITCH (BRAKE BOOSTER) FUEL GAUGE FUEL PUMP OIL PRESSURE SWITCH, SENDER (TOP REAR OF ENGINE) FUEL PUMP, SENDER (IN FUEL TANK) FUSE BLOCK GAUGES FUSE GRY WIRE HEAD- LIGHTS SYSTEM HEADLIGHTS SYSTEM HI-BEAM IND HOT IN RUN OR START HOT IN RUN, BULB TEST OR START HYDRO-BOOST PRESSURE WARNING SWITCH (BRAKE WARNING HARNESS) I/P GROUND (AT LEFT SHIPPING PANEL) IGNITION SWITCH ILLUM. LAMPS INSTRUMENT CLUSTER LEFT TURN IND LOCK OFF LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MAL- FUNCTION IND NCA WIRE OIL PRESS GAUGE PARK BRAKE IND PARK BRAKE WARNING SWITCH (PARK BRAKE PEDAL BRACKET) PNK PPL WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (LEFT SIDE OF I/P, BEHIND SHIPPING PANEL) PPL RESISTOR RIGHT TURN IND. SAFETY BELT IND. RUN WIRE SHUNT SPEED- OMETER TAN WIRE TAN/WHT WIRE VEHICLE SPEED SENSOR (REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (LEFT SIDE OF SHIPPING PANEL) VOLT- METER W/ DRL W/O DRL WHT WIRE YEL WIRE

BLK WIRE BRN WIRE DK GRN WIRE DOME LAMP SWITCH GRY WIRE HEADLAMPS SWITCH HIGH DIM HORN DIM FUSE 3 HOT AT ALL TIMES I/P FUSE BLOCK I/P LAMPS DIMMER SWITCH INSTR LPS FUSE 16 INSTRUMENT CLUSTER LIGHT SWITCH OFF HEAD PARK ORG/ WIRE PANEL LAMPS SWITCH PROVISION FOR DOME LAMP PROVISION FOR MARKER LAMPS SEAT BELT ALARM MODULE TAIL LPS FUSE 7 TRANSMISSION RANGE INDICATOR LAMP WHT WIRE

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

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

1995 VFTC ACCY ACCY BULB TEST LOCK OFF AUDIO ALARM MODULE CONVENIENCE CENTER BATTERY BATTERY JUNCTION BLOCK BLK WIRE BLK/RED WIRE BLOWER SWITCH RIGHT POWER WINDOW SWITCH BRN WIRE BULB TEST CONVENIENCE CENTER DAYTIME RUNNING LAMPS RELAY DK BLU WIRE DK GRN WIRE DRL FUSE PWR ACC CIRCUIT BREAKER FRONT DOME LAMP RADIO FUEL PUMP OIL PRESSURE SWITCH TURN SIGNAL FLASHER BACKUP LAMP SWITCH FUEL PUMP RELAY POWERTRAIN CONTROL MODULE (PCM) FUEL PUMP STOP-HZ FUSE FUSE FUSE BLOCK FUSIBLE FUSIBLE LINK GENERATOR GRY WIRE HEADLIGHT SWITCH HEATER RADIO CONTROL LAMP HIGH BLOWER RELAY HORN RELAY HORN/DM TAIL LPS FUSE FUSE SHUNT IGNITION COIL IGNITION SWITCH INSTR LPS FUSE INSTRUMENT CLUSTER LEFT DOOR LOCK SWITCH DOOR LOCK RELAY LEFT POWER WINDOW SWITCH LIGHT SWITCH LINK LOCK OFF NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE PPL PROVISIONS FOR REAR DOME LAMP PWR WDO CIRCUIT BREAKER HTR A/C FUSE RADIO WINDSHIELD WIPER/ WASHER SWITCH WINDSHIELD WIPER MOTOR MODULE RED WIRE RIGHT DOOR LOCK SWITCH RUN WIRE STARTER SOLENOID STOPLAMP SWITCH HAZARD FLASHER AUDIO ALARM MODULE TO ECM I, GAGES, TRANS FUSES AND TRANSMISSION RANGE INDICATOR LAMP TURN-B/U FUSE RADIO WIPER FUSE FUSE W/ A/C W/ A/C W/O A/C W/O A/C WHT WIRE 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