GMC Rally G3500 (1985-1996) wht Wiring diagrams

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

29 30 VSS RTN VSS SIG ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/WHT WIRE BRN WIRE DIESEL DK GRN WIRE DK GRN/WHT WIRE ENGINE OIL PRESSURE INDICATOR SENDER (TOP REAR OF ENGINE) FUEL PUMP SWITCH, ENGINE OIL PRESSURE GAUGE SENSOR (TOP REAR OF ENGINE) FUEL PUMP, SENDER (IN FUEL TANK) FUEL TANK LEVEL SENDER (IN FUEL TANK) GASOLINE HOT IN ACC OR RUN HOT IN RUN I/P FUSE BLOCK (BEHIND LEFT SIDE OF I/P) IGN INLINE DIODE LOW FLOW LOW PRES. LT GRN WIRE LT GRN/BLK WIRE NCA WIRE P/B BOOSTER FLUID FLOW ALARM P/B BOOSTER FLUID FLOW INDICATOR/ ALARM DELAY MODULE P/B BOOSTER FLUID FLOW SWITCH P/B PRESSURE WARNING SWITCH PARK BRAKE WARNING SWITCH PNK 1 2 3 WIRE PNK WIRE POWERTRAIN CONTROL MODULE (BEHIND CENTER OF I/P) PPL PPL/WHT WIRE RADIO RADIO I FUSE 17 RESISTOR SW SENSE TAN WIRE TAN/WHT WIRE TRANS FUSE 24 TWISTED PAIR VEHICLE CONTROL MODULE (ON LEFT RADIATOR SUPPORT) VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (DIESEL ONLY) (BEHIND LEFT SIDE OF I/P) VSS OUT VSS RTN GND IGN VSS SIG VSS OUT W/ P/B BOOSTER WHT WIRE YEL WIRE YEL/BLK WIRE

ASH TRAY LAMP BASE BATTERY BLK WIRE BRIGHT ADJUST BRN WIRE CENTER DOME AND READING LAMP (READING LAMPS W/ CONVENIENCE CENTER (LEFT SIDE OF I/P) CSTY FUSE 3 DK GRN WIRE DOME LAMP DOME LAMP DEFEAT SWITCH DOME SWITCH FRONT DOME AND READING LAMP (READING LAMPS W/ GAUGES FUSE 4 GROUND GRY WIRE HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN OR START I/P COMPART- MENT LAMP I/P FUSE BLOCK IGNITION ILLUMINATED ENTRY MODULE (RIGHT KICK PANEL) JAMB SW JAMB SWITCH LAMP LEFT FRONT DOOR JAMB SWITCH LEFT POWER DOOR LOCK SWITCH LEFT POWER SIDE WINDOW SWITCH LEFT STEPWELL LAMP LEFT SUNSHADE MIRROR LAMP NON BASE ONLY NON BASE UPFITTER PROV. OPTION ORG/ WIRE PARADE MODE SWITCH PARK LPS FUSE 9 PARK SWITCH PNK WIRE POWER MIRRORS SYSTEM PPL PPL/WHT WIRE PWR-ACCY CIRCUIT BREAKER READING LAMPS REAR DOME AND READING LAMP (READING LAMPS W/ REAR DOOR SIDE DOOR JAMB SWITCH REAR STEPWELL LAMP RIGHT FRONT DOOR JAMB SWITCH RIGHT POWER DOOR LOCK SWITCH RIGHT POWER SIDE WINDOW SWITCH RIGHT STEPWELL LAMP RIGHT SUNSHADE MIRROR LAMP W/O KEYLESS ENTRY WHT WIRE

ASH TRAY LAMP BASE BATTERY BLK WIRE BRIGHT ADJUST BRN WIRE CENTER DOME AND READING LAMP (READING LAMPS W/ CONVENIENCE CENTER (LEFT SIDE OF I/P) CSTY FUSE 3 DK GRN WIRE DOME LAMP DOME LAMP DEFEAT SWITCH DOME SWITCH DOOR LOCKS SYSTEM FRONT DOME AND READING LAMP (READING LAMPS W/ GAUGES FUSE 4 GROUND GRY WIRE HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN OR START I/P COMPART- MENT LAMP I/P FUSE BLOCK IGNITION JAMB SW JAMB SWITCH LAMP LEFT FRONT DOOR JAMB SWITCH LEFT POWER DOOR LOCK SWITCH LEFT POWER SIDE WINDOW SWITCH LEFT STEPWELL LAMP LEFT SUNSHADE MIRROR LAMP NON BASE ONLY OPTION ORG/ WIRE PARADE MODE SWITCH PARK LPS FUSE 9 PARK SWITCH PNK CONVENIENCE CENTER (LEFT SIDE OF I/P) WIRE PNK WIRE POWER MIRRORS SYSTEM PPL PPL/WHT WIRE PWR-ACCY CIRCUIT BREAKER READING LAMPS REAR DOME AND READING LAMP (READING LAMPS W/ REAR DOOR SIDE DOOR JAMB SWITCH REMOTE CONTROL DOOR LOCK RECEIVER (RIGHT KICK PANEL) RIGHT FRONT DOOR JAMB SWITCH RIGHT POWER DOOR LOCK SWITCH RIGHT POWER SIDE WINDOW SWITCH RIGHT SUNSHADE MIRROR LAMP UPFITTER PROV. W/ KEYLESS ENTRY WHT WIRE

1995 VFTC AUXILIARY BLOWER MOTOR SWITCH AUXILIARY HEAT BLK WIRE CARGO CONVENIENCE CENTER (LEFT SIDE OF I/P) DK GRN WIRE FRONT AUXILIARY HVAC CONTROL MODULE GROUP GRY WIRE HEATER AND A/C CONTROLLER HOT AT ALL TIMES RADIO B FUSE 19 HOT AT ALL TIMES UNDERHOOD FUSE-RELAY CENTER HORN MINI FUSE I/P FUSE BLOCK ILLUM FUSE 14 INSTRUMENT CLUSTER MULTI-FUNCTION ALARM MODULE NON- BASE ODOMETER ORG/ WIRE PASSENGER PPL PPL/WHT WIRE PRNDL RADIO REAR AUXILIARY HVAC CONTROL MODULE REMOTE CD PLAYER DIM UNDER- HOOD LAMP UNDER- HOOD REEL LAMP WHT WIRE

ABS MAXI- FUSE AUX-A MAXI- FUSE AUX-B MAXI- FUSE HVAC MAXI- FUSE AUXILIARY BATTERY AUXILIARY BLOWER MOTOR HIGH SPEED RELAY AUXILIARY BLOWER MOTOR LOW SPEED RELAY AUXILIARY BLOWER MOTOR LOW SPEED RELAY AUXILIARY BLOWER MOTOR MEDIUM SPEED RELAY AUXILIARY BLOWER MOTOR MEDIUM SPEED RELAY BATTERY BATTERY JUNCTION BLOCK BLK WIRE BLOWER MOTOR BRAKE FUSE 18 BRN WIRE CONVENIENCE CENTER CRUISE CONTROL MODULE (GASOLINE) CRUISE CONTROL SWITCH CRUISE FUSE 6 DIESEL FUSIBLE LINK (10 GA-RUST) GASOLINE GENERATOR GLOW PLUG CONTROLLER HEATER AND A/C CONTROL LOGIC MODULE HEATER AND A/C CONTROLLER HTR A/C FUSE 12 I/P FUSE BLOCK IGN A MAXI FUSE IGN B MAXI FUSE IGNITION SWITCH INLINE FUSE LEFT POWER SIDE WINDOW SWITCH RIGHT POWER SIDE WINDOW SWITCH LOCK LOCK ELECTRONIC BRAKE CONTROL MODULE LOCK OFF LOCK OFF OFF NCA WIRE OFF ORG/ WIRE P/B BOOSTER FLUID FLOW ALARM PARK/ NEUTRAL POSITION SWITCH PNK WIRE PWR WDO CB B WIPER FUSE 12 RADIO RADIO 1 FUSE 17 REAR AUXILIARY HVAC CONTROL MODULE FRONT AUXILIARY HVAC CONTROL MODULE REAR AUXILIARY TEMPERATURE VALVE ASSEMBLY RED WIRE RESISTOR WINDSHIELD WASHER/ WIPER SWITCH FROM FUSE ABOVE RR BLOWER MINI FUSE RR HVAC FUSE 24 RUN WIRE STARTER RELAY STARTER SOLENOID TCC/ STOPLAMP SWITCH ELECTRONIC BRAKE CONTROL MODULE TO I/P FUSE BLOCK TO UNDERHOOD FUSE-RELAY CENTER TO UPFITTER PROVISION RELAY BELOW TRAILER WIRING PROVISION UNDERHOOD FUSE-RELAY CENTER UPFITTER PROVISION CONNECTOR UPFITTER PROVISION RELAY (BEHIND LEFT B PILLAR) VEHICLE CONTROL MODULE (GASOLINE) TEMPERATURE VALVE ACTUATOR MOTOR W/ UPFITTER PROVISIONS WARNING WHT WIRE WINDSHIELD WIPER MOTOR CONVENIENCE CENTER YEL WIRE