GMC Vandura G1500 (1985-1995) alt fuse Wiring diagrams

ALT FUSE BLK WIRE BRK SW INPUT BRN WIRE CRUISE CONTROL ACTIVATOR CRUISE CONTROL BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) CRUISE CONTROL MODULE (BEHIND LEFT SIDE OF SHIPPING PANEL) DK BLU WIRE DK GRN WIRE FUSE BLOCK GROUND GRY WIRE HOT IN RUN OR START IGN ON OFF ON/OFF INPUT PNK/BLK WIRE R/A R/A INPUT S/C S/C INPUT TAN WIRE VEHICLE SPEED SENSOR BUFFER (LEFT SIDE OF SHIPPING PANEL) VSS INPUT

ALT FUSE BLK WIRE BRK SW INPUT BRN WIRE CRUISE CONTROL ACTIVATOR CRUISE CONTROL BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) CRUISE CONTROL MODULE (BEHIND LEFT SIDE OF SHIPPING PANEL) DK BLU WIRE DK GRN WIRE FUSE BLOCK GROUND GRY WIRE HOT IN RUN OR START IGN ON OFF ON/OFF INPUT PNK/BLK WIRE R/A R/A INPUT S/C S/C INPUT TAN WIRE VEHICLE SPEED SENSOR BUFFER (LEFT SIDE OF SHIPPING PANEL) VSS INPUT

ALT FUSE BLK WIRE BRK SW INPUT BRN WIRE CRUISE CONTROL ACTIVATOR CRUISE CONTROL BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) CRUISE CONTROL MODULE (BEHIND LEFT SIDE OF SHIPPING PANEL) DK BLU WIRE DK GRN WIRE FUSE BLOCK GROUND GRY WIRE HOT IN RUN OR START IGN ON OFF ON/OFF INPUT PNK/BLK WIRE R/A R/A INPUT S/C S/C INPUT TAN WIRE VEHICLE SPEED SENSOR BUFFER (LEFT SIDE OF SHIPPING PANEL) VSS INPUT

ALT FUSE BLK WIRE BRK SW INPUT BRN WIRE CRUISE CONTROL ACTIVATOR CRUISE CONTROL BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) CRUISE CONTROL MODULE (BEHIND LEFT SIDE OF SHIPPING PANEL) DK BLU WIRE DK GRN WIRE FUSE BLOCK GROUND GRY WIRE HOT IN RUN OR START IGN ON OFF ON/OFF INPUT PNK/BLK WIRE R/A R/A INPUT S/C S/C INPUT TAN WIRE VEHICLE SPEED SENSOR BUFFER (LEFT SIDE OF SHIPPING PANEL) VSS INPUT

ALT FUSE BLK WIRE BRK SW INPUT BRN WIRE CRUISE CONTROL ACTIVATOR CRUISE CONTROL BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) CRUISE CONTROL MODULE (BEHIND LEFT SIDE OF SHIPPING PANEL) DK BLU WIRE DK GRN WIRE FUSE BLOCK GROUND GRY WIRE HOT IN RUN OR START IGN ON OFF ON/OFF INPUT PNK/BLK WIRE R/A R/A INPUT S/C S/C INPUT TAN WIRE VEHICLE SPEED SENSOR BUFFER (LEFT SIDE OF SHIPPING PANEL) VSS INPUT

3 121 PNK WIRE 4.3L AND 7.4L 5.7L ACCY ALT FUSE BLK WIRE BLK/RED WIRE BLK/YEL WIRE BRN WIRE BRN/WHT WIRE BULB TEST DISTRIBUTOR (CENTER REAR OF ENGINE) DK BLU WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FUSE BLOCK GRY WIRE HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START IGNITION COIL (TOP RIGHT REAR OF ENGINE) IGNITION SWITCH INSTRUMENT CLUSTER KNOCK SENSOR (LEFT REAR OF ENGINE, NEAR OIL PRESSURE SENDER) KNOCK SENSOR MODULE (TOP RIGHT SIDE OF ENGINE) LOCK OFF LT BLU/WHT WIRE LT GRN WIRE MALFUNCTION (SERVICE ENGINE SOON) INDICATOR MANIFOLD ABSOLUTE PRESSURE SENSOR (ABOVE VALVE COVER) NCA WIRE ORG/ WIRE PNK 25 26 WIRE PNK WIRE PNK/BLK WIRE PPL PPL 2 3 4 PPL 23 24 PPL/WHT WIRE PROVISIONS FOR TACHOMETER RED WIRE RED/BLK WIRE RUN WIRE TAN/BLK WIRE TCC/BRAKE SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) THROTTLE POSITION SENSOR (ON THROTTLE BODY) TRANS FUSE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

3 121 PNK WIRE 4.3L 5.7L ACCY ALT FUSE BLK WIRE BLK/RED WIRE BLK/WHT WIRE BRN/WHT WIRE BULB TEST DISTRIBUTOR (TOP REAR OF ENGINE) DK BLU WIRE DK GRN/WHT WIRE FUEL PUMP AND SENDER (IN FUEL TANK) FUEL PUMP OIL PRESSURE SWITCH (TOP REAR OF ENGINE) FUEL PUMP PRIME CONNECTOR FUEL PUMP RELAY (LOWER LEFT SIDE OF SHIPPING PANEL) FUSE BLOCK GRY WIRE HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START IGNITION COIL (TOP OF ENGINE NEAR DISTRIBUTOR) IGNITION SWITCH INSTRUMENT CLUSTER KNOCK SENSOR (RIGHT SIDE OF ENGINE) KNOCK SENSOR MODULE (TOP RIGHT SIDE OF ENGINE) LOCK OFF LT GRN/BLK WIRE MALFUNCTION (SERVICE ENGINE SOON) INDICATOR NCA WIRE ORG/ WIRE OXYGEN SENSOR (IN EXHAUST MANIFOLD) HEATED OXYGEN SENSOR (IN EXHAUST MANIFOLD) PNK PPL PPL WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE PROVISIONS FOR TACHOMETER RED WIRE RUN WIRE TAN/BLK WIRE VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (BEHIND RIGHT SIDE OF I/P) WHT WIRE

3 121 PNK WIRE 4.3L AND 7.4L 5.7L ACCY ALT FUSE BLK WIRE BLK/RED WIRE BLK/YEL WIRE BRN WIRE BRN/WHT WIRE BULB TEST DISTRIBUTOR (CENTER REAR OF ENGINE) DK BLU WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FUSE BLOCK GRY WIRE HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START IGNITION COIL (TOP RIGHT REAR OF ENGINE) IGNITION SWITCH INSTRUMENT CLUSTER KNOCK SENSOR (LEFT REAR OF ENGINE, NEAR OIL PRESSURE SENDER) KNOCK SENSOR MODULE (TOP RIGHT SIDE OF ENGINE) LOCK OFF LT BLU/WHT WIRE LT GRN WIRE MALFUNCTION (SERVICE ENGINE SOON) INDICATOR MANIFOLD ABSOLUTE PRESSURE SENSOR (ABOVE VALVE COVER) NCA WIRE ORG/ WIRE PNK 25 26 WIRE PNK WIRE PNK/BLK WIRE PPL PPL 2 3 4 PPL 23 24 PPL/WHT WIRE PROVISIONS FOR TACHOMETER RED WIRE RED/BLK WIRE RUN WIRE TAN/BLK WIRE TCC/BRAKE SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) THROTTLE POSITION SENSOR (ON THROTTLE BODY) TRANS FUSE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

3 121 PNK WIRE 4.3L 5.7L ACCY ALT FUSE BLK WIRE BLK/RED WIRE BLK/WHT WIRE BRN/WHT WIRE BULB TEST DISTRIBUTOR (TOP REAR OF ENGINE) DK BLU WIRE DK GRN/WHT WIRE FUEL PUMP AND SENDER (IN FUEL TANK) FUEL PUMP OIL PRESSURE SWITCH (TOP REAR OF ENGINE) FUEL PUMP PRIME CONNECTOR FUEL PUMP RELAY (LOWER LEFT SIDE OF SHIPPING PANEL) FUSE BLOCK GRY WIRE HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START IGNITION COIL (TOP OF ENGINE NEAR DISTRIBUTOR) IGNITION SWITCH INSTRUMENT CLUSTER KNOCK SENSOR (RIGHT SIDE OF ENGINE) KNOCK SENSOR MODULE (TOP RIGHT SIDE OF ENGINE) LOCK OFF LT GRN/BLK WIRE MALFUNCTION (SERVICE ENGINE SOON) INDICATOR NCA WIRE ORG/ WIRE OXYGEN SENSOR (IN EXHAUST MANIFOLD) HEATED OXYGEN SENSOR (IN EXHAUST MANIFOLD) PNK PPL PPL WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE PROVISIONS FOR TACHOMETER RED WIRE RUN WIRE TAN/BLK WIRE VEHICLE SPEED SENSOR (LEFT REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (BEHIND RIGHT SIDE OF I/P) WHT WIRE

"TRANS" LAMP 1-2 SHIFT SOL 2-3 SHIFT SOL TCC SOL 2-3 SHIFT SOL CTRL 1-2 SHIFT SOL CTRL DIAGNOSTIC TEST A/C INPUT BRAKE SIGNAL TCC CONTROL PPL ACCY AIR CONDI- TIONING SYSTEM ALT FUSE B/H BATTERY FEED BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BULB TEST COLD ADVANCE FAST IDLE TEMPERATURE SWITCH (RIGHT REAR OF ENGINE) COLD ADVANCE SOLENOID (TOP FRONT OF ENGINE) DATA LINK CONNECTOR (BEHIND LEFT SIDE SHIPPING DIODE (BEHIND GENERATOR) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ECM BAT FUSE ECM CRANK FUSE ELECTRONIC 4-SPEED AUTOMATIC OVERDRIVE TRANSMISSION ENGINE SPEED SIGNAL SENSOR GROUND TP SENSOR INPUT FAST IDLE SOLENOID (TOP LEFT SIDE OF ENGINE) FUEL HEATER (TOP REAR OF ENGINE) FUEL SHUT- OFF SOLENOID (TOP FRONT OF ENGINE) FUSE BLOCK FUSIBLE LINK (20 GA-RUST) FUSIBLE LINKS GLOW PLUG CONTROLLER (LEFT SIDE OF ENGINE) GLOW PLUG WAIT LAMP GRY WIRE GRY/BLK WIRE GRY/RED WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSIBLE LINK HOT IN CRANK HOT IN RUN, BULB TEST OR START INPUTS INSTRUMENT CLUSTER LEFT BANK GLOW PLUGS LOCK OFF LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PANEL) PCS HI PCS LO IGNITION PNK RANGE SIGNAL A RANGE SIGNAL B RANGE SIGNAL C WIRE PNK WIRE PNK/BLK WIRE PPL PRESSURE CONTROL SOLENOID RANGE MODE SELECTOR RED WIRE RED/BLK WIRE RIGHT BANK GLOW PLUGS RUN WIRE SERVICE TRANS OUTPUT SERIAL DATA SYSTEM GROUND SYSTEM GROUND 452 416 SENSOR GROUND 5 VOLTS REF TAN/BLK WIRE TCC/BRAKE SWITCH (ON BRAKE PEDAL SUPPORT) TRANS FLUID TEMP SIG MAP SENS TRANS FUSE TRANS- MISSION FLUID TEMP (TFT) SENSOR TRANSMISSION CONTROL MODULE (TCM) (BEHIND LEFT SIDE OF SHIPPING PANEL) TRANSMISSION INPUT SPEED SENSOR (LEFT SIDE OF TRANSMISSION) VEHICLE SPEED INPUT TRANS INPUT SPD LO TRANS INPUT SPD HI VEHICLE SPEED SENSOR (REAR OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (UNDER RIGHT SIDE OF I/P) VEHICLE SPD OUTPUT VSS WATER IN FUEL INDICATOR WATER-IN FUEL SENSOR (TOP REAR OF ENGINE) WHT WIRE WHT/BLK WIRE YEL/BLK WIRE