GMC Rally G3500 (1985-1996) gauges fuse 4 Wiring diagrams

1-2 SHIFT SOL 1-2 SHIFT SOLENOID 2-3 SHIFT SOL 2-3 SHIFT SOLENOID A/T ISS SENS HI IN A/T ISS SENS LO IN ACCELERATOR PEDAL POSITION (APP) MODULE (THROTTLE PEDAL MOUNT) APP 1 SIGNAL IN APP 2 SIGNAL IN APP 3 SIGNAL IN AUTO TRANSMISSION INPUT SHAFT SPEED SENSOR (INSIDE FRONT OF TRANSMISSION) AUTOMATIC TRANSMISSION BATTERY IN BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRAKE SWITCH ASSEMBLY (ON BRAKE PEDAL BRACKET) BRAKE SWITCH IN BRN WIRE BRN/WHT WIRE CLASS II DATA DIESEL FUEL FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECM-B FUSE ECT SENSOR IN ENGINE COOLANT TEMP SENSOR (TOP FRONT OF ENGINE) GAUGES FUSE 4 GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK IGNITION IN INSTRUMENT CLUSTER LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP MIL CONTROL ORG/ WIRE PCM GROUND PCS SOL HI OUT PCS SOL LO OUT PNK POWER WIRE PNK WIRE POWERTRAIN CONTROL MODULE (BEHIND CENTER OF DASH) PPL PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) PPL/WHT WIRE PRESS CTRL HI SOLENOID RED WIRE RED/BLK WIRE SENSOR GROUND STOP FUSE 1 STOPLAMP SWITCH IN TAN/WHT WIRE TCC PWM SOL TCC PWM SOLENOID TFT SENSOR IN TRANS FLUID TEMP SENSOR TRANS FUSE 20 TRANS RANGE "A" TRANS RANGE "B" TRANS RANGE "C" TRANS RANGE PRESSURE SWITCH ASSEMBLY UNDERHOOD FUSE/RELAY CENTER VEHICLE SPEED SENSOR (VSS) BUFFER (LEFT SIDE OF DASH) VSS HI IN VSS IN VSS LO IN VSS OUT WHT WIRE YEL WIRE YEL/BLK 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

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

BASE BATTERY RR DR UNLCK BLK WIRE BLK/WHT WIRE CONVENIENCE CENTER (LEFT SIDE OF I/P) DATA LINK CONNECTOR (PARTIAL) DOME LP DEF IGN PNK WIRE DOOR JAMB SWITCH DR INPUT BATTERY LOCK DR UNLOCK DOME LP GND DR UNLOCK BATTERY GAUGES FUSE 4 GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK LEFT FRONT DOOR LOCK MOTOR LEFT FRONT POWER DOOR LOCK SWITCH LOCK LOCK SIG UNLOCK SIG GROUND LOCK UNLOCK LT BLU WIRE ORG/ WIRE PNK WIRE POWER DOOR LOCK CONTROL MODULE (BEHIND RIGHT KICK PANEL) POWER DOOR LOCK RELAY (BEHIND RIGHT KICK PANEL) PROG SIG PWR ACC CIRCUIT BREAKER A REAR DOOR LOCK MOTOR REMOTE CONTROL DOOR LOCK RECEIVER (BEHIND RIGHT KICK PANEL) RIGHT FRONT DOOR LOCK MOTOR RIGHT FRONT POWER DOOR LOCK SWITCH RIGHT REAR POWER DOOR LOCK SWITCH SEATS SYSTEM SIDE DOOR CONTACT BUTTONS SIDE DOOR LOCK MOTOR TAN WIRE UNLOCK UNLOCK LOCK W/ REMOTE KEYLESS ENTRY (RKE) ONLY W/ RKE W/O RKE W/ UPFITTER PROVISIONS W/O UPFITTER PROVISIONS WHT WIRE WHT/BLK WIRE

19 20 PNK WIRE 5 6 7 8 9 10 PNK PNK PNK PNK WIRE A/C COMPRESSOR HIGH PRESSURE CUTOFF SWITCH (ON REAR PORTION OF A/C COMPRESSOR) BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM-B MINI FUSE ENGINE COOLANT TEMPERATURE GAUGE SENSOR (TOP FRONT OF ENGINE) EVAP CANISTER PURGE VACUUM DIAGNOSTIC SWITCH (RIGHT SIDE OF ENGINE) FUEL PUMP PRIME CONNECTOR FUEL PUMP RELAY FUEL PUMP SWITCH, ENGINE OIL PRESSURE GAUGE SENSOR FUEL PUMP, SENDER (PUMP SHOWN) (IN FUEL TANK UNDER REAR OF VEHICLE) GAUGES FUSE 4 GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START HOT IN RUN, START, OFF I/P FUSE BLOCK INSTRUMENT CLUSTER LT BLU/WHT WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP (MIL) "SERVICE ENGINE SOON" MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP RIGHT SIDE OF ENGINE) MASS AIR FLOW SENSOR (PART OF AIR INTAKE DUCT, TOP FRONT OF ENGINE) OIL PRESSURE GAUGE INPUT ORG/ WIRE PNK PNK 1 2 3 4 5 6 7 8 9 10 11 WIRE PNK WIRE RED WIRE RED/BLK WIRE SPEEDOMETER/ ODOMETER INPUT TAN WIRE TAN/WHT WIRE THROTTLE POSITION SENSOR (TOP LEFT SIDE OF ENGINE) TRANS FUSE 20 UNDERHOOD FUSE-RELAY CENTER WHT WIRE YEL 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

BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FUEL GAUGE FUEL PUMP, SENDER (ON TOP OF FUEL TANK) FUEL PUMP/ OIL PRESSURE SWITCH (ON ENGINE BLOCK, TOP REAR, BEHIND DISTRIBUTOR) GAUGES FUSE 4 GRY WIRE HOT IN RUN HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK INSTRUMENT CLUSTER LT BLU/WHT WIRE LT GRN WIRE MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR (TOP RIGHT SIDE OF ENGINE) MASS AIR FLOW SENSOR (TOP FRONT OF ENGINE, IN FRESH AIR INTAKE DUCT) NCA WIRE OIL PRESS GAUGE ORG/ WIRE PNK PNK PNK 4 5 6 WIRE PNK WIRE PPL PPL PNK PNK PNK 1 2 3 4 5 6 WIRE RED WIRE RED/BLK WIRE SERVICE ENGINE SOON INDICATOR SPEED METER TAN WIRE TCC/STOP- LAMP SWITCH (UNDER LEFT SIDE OF I/P, ON BRAKE PEDAL SUPPORT BRACKET) THROTTLE POSITION SENSOR (ON SIDE OF THROTTLE BODY) WHT WIRE YEL WIRE