GMC Vandura G3500 (1985-1996) hot in run or start Wiring diagrams

BLK WIRE CONVENIENCE CENTER (UNDER LEFT SIDE OF I/P) HOT IN RUN OR START I/P FUSE BLOCK LEFT BACKUP LAMP LT GRN WIRE PARK/NEUTRAL POSITION SWITCH (LEFT SIDE OF TRANS.) PNK WIRE RIGHT BACKUP LAMP TURN B/U FUSE 16 W/ OPTIONAL TRAILER WIRING PACKAGE (RIGHT REAR OF INTERIOR)

BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE PEDAL) BRN WIRE CENTER HIGH MOUNTED STOP LAMP (CHMSL) CONVEN- IENCE CENTER (UNDER LEFT SIDE OF I/P) INTERIOR LIGHTS SYSTEM CONVENIENCE CENTER (UNDER LEFT SIDE OF I/P) CRUISE CONTROL SYSTEM DK BLU WIRE DK GRN WIRE DK LT HAZ SW TN SW HAZARD HAZARD FUSE 5 HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK INSTRU- MENT CLUSTER RIGHT TURN IND. LEFT LEFT FRONT INNER PARK, TURN SIGNAL LAMP LEFT REAR PARK LEFT SIDE MARKER LAMP LEFT TURN IND LICENSE LAMP LT BLU WIRE LT GRN WIRE LT LT LEFT FRONT OUTER PARK/ TURN SIGNAL LAMP NORMAL OFF HEAD PARK ORG/ WIRE PARK LPS FUSE 9 PNK WIRE PPL RIGHT RIGHT REAR PARK RIGHT SIDE MARKER LAMP STOP FUSE 1 STOP, TAIL LAMP TCC/ STOP LAMP SWITCH (TOP OF TURN B/U FUSE 16 TURN PWR HAZ PWR FLSHR OUT GND TURN SIGNAL LAMP TURN/ HAZARD SWITCH TURN/HAZARD LAMP FLASHER (I/P RELAY CENTER: BELOW CENTER OF I/P) W/ OPTIONAL TRAILER WIRING PACKAGE (RIGHT REAR OF INTERIOR) WHT WIRE YEL WIRE

6 OHMS BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE PEDAL) BRN WIRE CENTER HIGH MOUNTED STOP LAMP (CHMSL) CONVEN- IENCE CENTER (UNDER LEFT SIDE OF I/P) INTERIOR LIGHTS SYSTEM CONVENIENCE CENTER (UNDER LEFT SIDE OF I/P) CRUISE CONTROL SYSTEM DK BLU WIRE DK GRN WIRE DK LT DK RIGHT FRONT PARK HAZ SW TN SW HAZARD HAZARD FUSE 5 HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK IN-LINE RESISTOR INSTRU- MENT CLUSTER RIGHT TURN IND. LEFT LEFT REAR PARK LEFT SIDE MARKER LAMP LEFT TURN IND LICENSE LAMP LT BLU WIRE LT GRN WIRE LT LEFT FRONT PARK NORMAL OFF HEAD PARK ORG/ WIRE PARK LPS FUSE 9 PNK WIRE PPL RIGHT RIGHT REAR PARK RIGHT SIDE MARKER LAMP STOP FUSE 1 STOP, TAIL LAMP TCC/ STOP LAMP SWITCH (TOP OF TURN B/U FUSE 16 TURN PWR HAZ PWR FLSHR OUT GND TURN SIGNAL LAMP TURN/ HAZARD SWITCH TURN/HAZARD LAMP FLASHER (I/P RELAY CENTER: BELOW CENTER OF I/P) W/ OPTIONAL TRAILER WIRING PACKAGE (RIGHT REAR OF INTERIOR) WHT WIRE YEL WIRE

1996 VFTC BLK WIRE BULB TEST DIODE ARRAY DK BLU WIRE DRL FUSE 15 DRL INDICATOR GAUGES FUSE 4 GROUND HEAD HEAD- LAMP DIMMER SWITCH HEADLAMP SWITCH HI BEAM INDICATOR HI BM FEED HI BM INDICATOR DRL RELAY CTRL HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK IGNITION SWITCH INLINE DIODE 201 (I/P HARNESS UNDER LEFT SIDE OF I/P) INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT HI BEAM HEAD- LAMP LEFT LO BEAM HEADLAMP LIGHTING MAXI FUSE LOCK OFF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE OFF PARK ORG/ WIRE PARK BRAKE WARNING SWITCH (ON PARK BRAKE) PNK IGNITION LAMP FEED WIRE PNK WIRE RED WIRE RIGHT HI BEAM HEAD- LAMP RIGHT LO BEAM HEAD- LAMP RUN WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE-RELAY CENTER (ENGINE COMPARTMENT, LEFT FENDER) WHT WIRE YEL WIRE

BLK WIRE BULB TEST DIODE ARRAY DK BLU WIRE DRL FUSE 15 DRL INDICATOR GAUGES FUSE 4 GRN WIRE GROUND HEAD HEAD- LAMP DIMMER SWITCH HEADLAMP SWITCH HI BEAM INDICATOR HI BM FEED HI BM INDICATOR DRL RELAY CTRL HI LO HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK IGNITION SWITCH INLINE DIODE 201 (I/P HARNESS UNDER LEFT SIDE OF I/P) INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT HEAD- LAMP LIGHTING MAXI FUSE LOCK OFF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE OFF PARK ORG/ WIRE PARK BRAKE WARNING SWITCH (ON PARK BRAKE) PNK IGNITION LAMP FEED WIRE PNK WIRE RED WIRE RIGHT HEAD- LAMP RUN WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE-RELAY CENTER (ENGINE COMPARTMENT, LEFT FENDER) WHT WIRE YEL WIRE

AIR BAG IND ANTI-LOCK BRAKES SYSTEM ENGINE CONTROLS SYSTEM ANTI-LOCK BRAKES WARNING IND BAT IND BLK WIRE BLK/WHT WIRE BRAKE IND IN PARK BRAKE IN BRAKE PRESSURE DIFFERENTIAL SWITCH (PART OF ELECTRONIC BRAKE CONTROL MODULE) BRAKE WARNING IND BRN WIRE BRN/WHT WIRE CHECK GAUGES IND CHECK GAUGES LAMP DRIVER DIESEL ONLY EXTERIOR LIGHTS SYSTEM DIODE DIODE-I DK BLU WIRE DK GRN WIRE DRL LAMP IND (W/ DRL) FUEL GAUGE GAUGES FUSE 4 GRY WIRE HEADLIGHTS SYSTEM HIGH BEAM IND HOT IN RUN OR START I/P FUSE BLOCK (BEHIND LEFT SIDE OF I/P) IGNITION SWITCH ILLUMIN- ATION LAMPS INSTRUMENT CLUSTER LEFT TURN IND LOCK LOW COOLANT IND. (DIESEL) LOW ENGINE COOLANT LEVEL INDICATOR MODULE (DIESEL ONLY) (LEFT SIDE OF I/P) LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE OFF OIL PRESS GAUGE PARK/NEUTRAL POSITION, BACKUP LAMP SWITCH (LEFT SIDE OF TRANSMISSION) PNK 1 2 3 WIRE PNK IGN FEED IND CTRL GND WIRE PNK WIRE PPL PPL/WHT WIRE PRNDL CIRCUIT BOARD RIGHT TURN IND RUN WIRE SAFETY BELT IND SERVICE ENGINE SOON IND SERVICE THROTTLE SOON IND (DIESEL) SOLID STATE SPEEDOMETER/ ODOMETER STARTING/CHARGING SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TAN WIRE TAN/WHT WIRE TEMP GAUGE UNDERHOOD FUSE-RELAY CENTER (LEFT FENDER) UNDERHOOD FUSE-RELAY CENTER (LEFT FENDER) ENG-I MINI FUSE VOLT- METER W/ DRL W/ DRL ONLY W/O DRL W/O DRL W/ DRL WAIT IND (DIESEL) WARNING SYSTEM ENGINE CONTROLS SYSTEM DIESEL ONLY WATER IN FUEL IND. (DIESEL) WATER-IN-FUEL SENSOR (DIESEL ONLY) (REAR OF INTAKE MANIFOLD) WHT (OR LT GRN) WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

"GLOW PLUGS" INDICATOR BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECM-B FUSE ENG-BAT FUSE FUEL LIFT PUMP (LEFT FRAME RAIL, NEAR CENTER OF VEHICLE) FUEL PUMP RELAY (IN UNDERHOOD FUSE-RELAY CENTER) FUEL PUMP SWITCH AND ENGINE OIL PRESSURE GAUGE SENSOR (TOP REAR OF ENGINE) GAUGES FUSE 4 GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK INSTRUMENT CLUSTER LT GRN WIRE OIL PRESS GAUGE ORG/ WIRE PNK PNK 8 9 WIRE PNK PNK PNK 7 8 9 10 11 WIRE PNK WIRE SERVICE ENGINE SOON INDICATOR SERVICE THROTTLE SOON INDICATOR SPEEDOMETER SOLID STATE LOGIC TAN WIRE UNDERHOOD FUSE-RELAY CENTER WAIT TO WATER IN FUEL INDICATOR WATER IN FUEL INDICATOR SENSOR WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

"SERV ENG SOON" IND ENGINE SHUTOFF SOL OUT "SERV THROTTLE SOON" IND A/C ENABLE PCM GND PCM GND A/C SYSTEM BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (LEFT FRAME RAIL, NEAR CENTER OF VEHICLE) ENG-I FUSE FUEL HEATER (TOP REAR OF ENGINE) FUEL SOL MODULE (5 VREF) FUSIBLE LINK FUSIBLE LINK (12 GA. RUST) FUSIBLE LINKS GLOW PLUG CONTROL RELAY (TOP RIGHT SIDE OF ENGINE) GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START LEFT BANK GLOW PLUGS LT GRN WIRE NCA WIRE ORG/ WIRE PNK PNK 339 339 IGNITION IGNITION WIRE PNK PNK PNK 7 8 9 10 11 WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (UNDER RIGHT END OF I/P, ABOVE BLOWER MOTOR) PPL PPL 2 16 DATA LINK CONNECTOR (DLC) (LEFT SIDE OF I/P) PPL SERIAL DATA SIG RED WIRE RIGHT BANK GLOW PLUGS TAN/WHT WIRE TURBO CHARGER WASTEGATE SOLENOID TURBO CHGR PWR VLV CTRL ENGINE SHUTOFF SOL OUT UNDERHOOD FUSE-RELAY CENTER WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BRN WIRE DK BLU WIRE DK BLU/WHT WIRE ENG 1 FUSE EXHAUST GAS RECIRCULATION VALVE SOLENOID (RIGHT SIDE OF ENGINE) FLUID TEMPERATURE SENSOR (INTERNAL) FORCE MOTOR FUEL INJ. NO.1 FUEL INJ. NO.3 FUEL INJ. NO.5 FUEL INJ. NO.4 FUEL INJ. NO.6 FUEL INJ. NO.7 FUEL INJ. NO.2 FUEL INJ. NO.8 GRN WIRE GRY WIRE HOT IN OFF, RUN OR START HOT IN RUN OR START I/P FUSE BLOCK IGNITION INTAKE AIR TEMP SENSOR (MOUNTED IN FRESH AIR INTAKE DUCT) LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE PNK 8 9 10 WIRE PNK PNK 1 2 WIRE PNK PNK PNK 4 5 6 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL/ WHT WIRE PPL/WHT WIRE RED WIRE RED/BLK WIRE SOLENOID 1-2 SOLENOID 2-3 SWITCH PRESSURE TAN WIRE TAN/ WHT WIRE TAN/WHT WIRE TCC SOLENOID TRANS FUSE 20 UNDERHOOD FUSE/RELAY CENTER WHT LT BLU/ WIRE WHT PPL/ WIRE WHT TAN/ WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

900 900 SERVICE CIRCUIT POWER SERVICE CIRCUIT POWER A/C REQUEST SIGNAL A/T INPUT SPEED SENSOR (INSIDE FRONT OF TRANSMISSION) AIR CONDITIONING SYSTEM B(+) BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CRUISE CONTROL MODULE (FRONT OF ENGINE COMPT NEAR LEFT FENDER) CRUISE CTRL ENGAGED CRUISE CTRL SIG-ENGAGED CYLINDER NO.1 CYLINDER NO.4 CYLINDER NO.5 CYLINDER NO.3 CYLINDER NO.6 CYLINDER NO.7 CYLINDER NO.2 CYLINDER NO.8 DATA LINK CONNECTOR (UNDER LEFT SIDE OF I/P) DISTRIBUTOR DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECM I FUSE ECM-B FUSE ELEC SPK TIMING CTRL SIGNAL EST CTRL EVAP CAN PURGE VAC IN FORCE MTR RTN GROUND GROUND SENS GROUND FORCE MTR FEED SENS RTN SENS RTN ELEC SPK TIMING CTRL SIG FUEL PMP RLY CTRL 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 FUEL PUMP PRIME CONNECTOR FUEL PUMP RELAY UNDERHOOD FUSE-RELAY CENTER GROUND GRY WIRE HIGH VOLTAGE COIL WIRE HOT AT ALL TIMES HOT IN RUN OR START IGN FEED IGN FEED PRESS SW SIG PRESS SW SIG IGNITION COIL (TOP RIGHT SIDE OF ENGINE) IGNITION COIL DRIVER (ON BRACKET AT REAR OF INTAKE PLENUM) LT BLU/BLK WIRE LT BLU/WHT WIRE NCA WIRE ORG/ WIRE PNK IGN FEED WIRE PNK WIRE PPL PPL PNK PNK PNK 1 2 3 4 5 6 WIRE PPL PPL ANTI-LOCK BRAKES SYSTEM PPL PPL BRAKE SW INPUT SERIAL DATA PPL TCC/STOPLAMP INPUT PRESS SW SIG RED WIRE RED/BLK WIRE SOUND SYSTEMS SPARK PLUGS SPEED SENSOR INPUT TAN/WHT WIRE UNDERHOOD FUSE/RELAY CENTER VEHICLE CONTROL MODULE (VCM) (ENGINE COMPARTMENT, ON LEFT FENDER APRON) VSS SIGNAL VSS OUTPUT CHECK ENGINE LP CTRL WHT WIRE WHT/BLK WIRE