GMC Vandura P3500 (1985-1997) Power distribution circuit, commercial chassis

1996 VFTC A/C COMPRESSOR CLUTCH RELAY AUXILIARY ENGINE COOLANT FAN RELAY (DIESEL ONLY) BATT BUS BATTERY BATTERY JUNCTION BLOCK (LEFT SIDE OF ENGINE BULKHEAD, ABOVE RELAY BRACKET) BLK WIRE DATA LINK CONNECTOR (DLC) DIESEL DOME LAMP (PROVISIONS FOR) ECM BAT FUSE ENG-BAT FUSE FUEL PUMP RELAY FUEL PUMP SWITCH, ENGINE OIL PRESSURE GAUGE SENSOR FUSIBLE LINK (10 GA-RUST) FUSIBLE LINK (16 GA- FUSIBLE LINK 12 GA. BLUE FUSIBLE LINK 18 GA. BLUE FUSIBLE LINK 18 GA. RUST GAS GENERATOR (RIGHT FRONT OF ENGINE) GLOW PLUG CONTROL SWITCH (DIESEL ONLY) GRY WIRE HAZARD WARNING LAMPS FLASHER HEADLAMPS SWITCH HORN RELAY HORN/ DM FUSE TAIL LPS FUSE I/P FUSE BLOCK (DASH PANEL PROVIDED BY BODY BUILDER) (BODY BUILDER INSTALLED) IGNITION SWITCH ORG/ WIRE PWR BUS PWR FUSE RED WIRE REMOTE BATTERY ACCESS TERMINAL BLOCK (REAR OF RIGHT RADIATOR CORE SUPPORT PANEL) SEAT BELT ALARM SECONDARY BATTERY (DIESEL ONLY) STARTER RELAY STARTER SOLENOID (AT STARTER, LOWER RIGHT SIDE OF ENGINE) STOP/ HAZ FUSE STUD TO HEADLAMPS SWITCH (CAVITY E) TORQUE CONVERTER CLUTCH, STOPLAMPS SWITCH TRANSMISSION CONTROL MODULE (A/T ONLY) VEHICLE CONTROL MODULE (VCM) W/DELUXE SCHOOL BUS

A/C COMPRESSOR CLUTCH RELAY ACCESSORY JUNCTION BLOCK (LEFT INTERIOR BULKHEAD, NEAR RELAY BRACKET) AUXILIARY ENGINE COOLANT FAN RELAY (DIESEL ONLY) BATT BUS BATTERY BATTERY JUNCTION BLOCK (LEFT SIDE OF ENGINE BULKHEAD, ABOVE RELAY BRACKET) BLK WIRE DATA LINK CONNECTOR (DLC) DIESEL DOME LAMP (PROVISIONS FOR) ECM BAT FUSE ENG-BAT FUSE FUEL PUMP RELAY FUEL PUMP SWITCH, ENGINE OIL PRESSURE GAUGE SENSOR FUSIBLE LINK (10 GA-RUST) FUSIBLE LINK (16 GA- FUSIBLE LINK 12 GA. BLUE FUSIBLE LINK 18 GA. BLUE FUSIBLE LINK 18 GA. RUST GAS GENERATOR GLOW PLUG CONTROL SWITCH (DIESEL ONLY) GRY WIRE HAZARD WARNING LAMPS FLASHER HEADLAMPS SWITCH HORN RELAY HORN/ DM FUSE TAIL LPS FUSE I/P FUSE BLOCK (DASH PANEL PROVIDED BY BODY BUILDER) ORG/ WIRE OTHERS PWR BUS PWR FUSE RED WIRE REMOTE BATTERY ACCESS TERMINAL BLOCK (REAR OF RIGHT RADIATOR CORE SUPPORT PANEL) SEAT BELT/ LAMPS ALARM SECONDARY BATTERY (DIESEL ONLY) STARTER RELAY STARTER SOLENOID (AT STARTER, LOWER RIGHT SIDE OF ENGINE) STOP/ HAZ FUSE STUD TO IGNITION SWITCH (DIAGRAM 2 OF 4) TORQUE CONVERTER CLUTCH, STOPLAMPS SWITCH TRANSMISSION CONTROL MODULE (A/T ONLY) VEHICLE CONTROL MODULE (VCM) W/DELUXE SCHOOL BUS

1996 VFTC ACC BUS AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION (A/T) BRN WIRE CLUTCH PEDAL POSITION (CPP) SWITCH CRK (START) LOCK ON (RUN) OFF CRK (START) ON (RUN) LOCK OFF CRK (START) ON (RUN) OFF DIESEL DK BLU WIRE ENG 1 FUSE EVAPORATIVE EMISSIONS (EVAP) CANISTER PURGE SOLENOID VALVE FROM FUSIBLE LINK FUEL HEATER FUSE OUTPUT- ACCESSORY TYPE 3 FUSE GAS GLOW PLUG CONTROL SWITCH HEATED OXYGEN SENSOR HEATED OXYGEN SENSOR CAMSHAFT POSITION (CMP) SENSOR I/P FUSE BLOCK (DASH PANEL PROVIDED BY BODY BUILDER) (BODY BUILDER INSTALLED) IGNITION SWITCH LEFT POST CONVERTER (5.7L VIN R LEFT PRE- CONVERTER LINEAR EXHAUST GAS RECIRC- ULATION (EGR) SOLENOID VALVE LOCK MANUAL TRANSMISSION MASS AIR FLOW (MAF SENSOR) NCA WIRE ORG/ WIRE PARK/NEUTRAL POSITION (PNP), BACKUP LAMPS SWITCH PNK PNK WIRE PNK WIRE POST CONVERTER (4.3L VIN W PROVISIONS FOR WIPER/ WASHER MOTOR RADIO FUSE RED WIRE RIGHT POST CONVERTER (5.7L VIN R RIGHT PRE- CONVERTER TO I/P FUSE BLOCK: (AUX, I-3, TURN B/U,, HTR FUSES) TRANS FUSE VEHICLE CONTROL MODULE (VCM) WATER- IN-FUEL SENSOR AUXILIARY ENGINE COOLANT FAN RELAY WHT WIRE WINDSHIELD WIPER/ WASHER SWITCH WIPER FUSE YEL WIRE

A/T ACC BUS AUTOMATIC TRANSMISSION (A/T) BRN WIRE CLUTCH PEDAL POSITION (CPP) SWITCH CRK (START) LOCK ON (RUN) OFF CRK (START) ON (RUN) LOCK OFF CRK (START) ON (RUN) OFF DIESEL DK BLU WIRE ENG 1 FUSE EVAPORATIVE EMISSIONS (EVAP) CANISTER PURGE SOLENOID VALVE EXHAUST GAS RECIRCULATION (EGR) VALVE FROM FUSIBLE LINK FUEL HEATER GAS GLOW PLUG CONTROL SWITCH HEATED OXYGEN SENSOR HEATED OXYGEN SENSOR CAMSHAFT POSITION (CMP) SENSOR I/P FUSE BLOCK (DASH PANEL PROVIDED BY BODY BUILDER) IGNITION SWITCH LEFT POST CONVERTER (5.7L VIN R LEFT PRE- CONVERTER LOCK M/T MASS AIR FLOW (MAF SENSOR) NCA WIRE ORG/ WIRE PARK/NEUTRAL POSITION (PNP), BACKUP LAMPS SWITCH PNK (ENGINE HARNESS, APPROX 5 CM FROM RIGHT GLOWPLUG BREAKOUT) WIRE PNK PNK WIRE PNK WIRE POST CONVERTER (4.3L VIN W PROVISIONS WINDSHIELD WASHER MOTOR RADIO FUSE RED WIRE RIGHT POST CONVERTER (5.7L VIN R RIGHT PRE- CONVERTER TO I/P FUSE BLOCK (DIAGRAM 4 OF 4) TRANS FUSE VEHICLE CONTROL MODULE (VCM) WATER- IN-FUEL INDICATOR SENSOR AUXILIARY ENGINE COOLANT FAN RELAY WHT WIRE WINDSHIELD WIPER/ WASHER SWITCH WIPER FUSE YEL WIRE

1996 VFTC 4.3L VIN W (L35) ENGINE 5.7L VIN R (L31) ENGINE CRANKSHAFT POSITION (CKP) SENSOR CRANKSHAFT POSITION SENSOR (CKP) ECM 1 FUSE ELECTRONIC IGNITION (EI) COIL DRIVER MODULE FUEL INJECTOR NO.1 FUEL INJECTOR NO.2 FUEL INJECTOR NO.3 FUEL INJECTOR NO.4 FUEL INJECTOR NO.5 FUEL INJECTOR NO.6 FUEL INJECTOR NO.7 FUEL INJECTOR NO.8 HOT IN RUN, START I/P FUSE BLOCK (DASH PANEL PROVIDED BY BODY BUILDER) (BODY BUILDER INSTALLED) IGNITION COIL INSTRUMENT CLUSTER PNK INSTRUMENT CLUSTER WIRE PNK WIRE VEHICLE CONTROL MODULE (VCM)

4.3L VIN W (L35) ENGINE 5.7L VIN R (L31) ENGINE CRANKSHAFT POSITION (CKP) SENSOR CRANKSHAFT POSITION SENSOR (CKP) ECM 1 FUSE ELECTRONIC IGNITION (EI) COIL DRIVER MODULE FUEL INJECTOR NO.1 FUEL INJECTOR NO.2 FUEL INJECTOR NO.3 FUEL INJECTOR NO.4 FUEL INJECTOR NO.5 FUEL INJECTOR NO.6 FUEL INJECTOR NO.7 FUEL INJECTOR NO.8 HOT IN RUN OR START I/P FUSE BLOCK (DASH PANEL PROVIDED BY BODY BUILDER) IGNITION COIL INSTRUMENT CLUSTER PNK INSTRUMENT CLUSTER WIRE PNK WIRE VEHICLE CONTROL MODULE (VCM)

1996 VFTC 6.5L VIN Y A/C COMPRESSOR CLUTCH RELAY AUTOMATIC TRANSMISSION AUX FUSE BACK UP LAMPS SWITCH BRN WIRE CANADIAN MODELS ONLY CAVITY A) DAYTIME RUNNING LAMP (DRL) RELAY DAYTIME RUNNING LAMPS (DRL) CONTROL MODULE DIESEL ECM 1 FUSE FROM IGNITION SWITCH FUEL INJECTION PUMP FUEL SHUT-OFF SOLENOID GAS GAS MODELS ONLY GAUGES FUSE GENERATOR GENERATOR HOT IN RUN, START HTR BUS HTR FUSE I-3 FUSE I/P FUSE BLOCK (DASH PANEL PROVIDED BY BODY BUILDER) (BODY BUILDER INSTALLED) IGN BUS INSTRUMENT CLUSTER MANUAL TRANSMISSION ORG/ WIRE P/B BOOSTER FLUID FLOW, PRESSURE ALARM PARK/ NEUTRAL POSITION (PNP), BACKUP LAMPS SWITCH PNK PNK WIRE PNK WIRE SEAT BELT ALARM INSTRUMENT CLUSTER THIS CAN PLUG INTO TORQUE CONVERTER CLUTCH (TCC), STOP LAMPS SWITCH TRANSMISSION CONTROL MODULE (TCM) FUEL INJECTION PUMP FUEL SHUT-OFF SOLENOID TURN SIGNAL FLASHER TURN-B/U FUSE VEHICLE CONTROL MODULE (VCM) VEHICLE SPEED SENSOR (VSS) BUFFER W/BRAKE WARNING INDICATOR SYSTEM

1996 VFTC 6.5L VIN Y A/C COMPRESSOR CLUTCH RELAY A/T AUX FUSE BACK UP LAMPS SWITCH BRN WIRE CANADIAN MODELS ONLY DAYTIME RUNNING LAMP (DRL) RELAY DAYTIME RUNNING LAMPS (DRL) CONTROL MODULE DIESEL DK GRN WIRE ECM 1 FUSE ELECTRONIC BRAKE CONTROL MODULE FROM IGNITION SWITCH (DIAGRAM 2 OF 4) FUEL INJECTION PUMP FUEL SHUT-OFF SOLENOID VEHICLE SPEED SENSOR (VSS) BUFFER GAS GAUGES FUSE GENERATOR GENERATOR GRY WIRE HOT IN RUN OR START HTR BUS HTR FUSE I-3 FUSE I/P FUSE BLOCK (DASH PANEL PROVIDED BY BODY BUILDER) IGN BUS INSTR LPS FUSE INSTRUMENT CLUSTER INTERIOR LIGHTS SYSTEM (I/P LAMPS DIMMER SWITCH) M/T NCA WIRE ORG/ WIRE OTHERS P/B BOOSTER FLUID FLOW ALARM PARK/ NEUTRAL POSITION (PNP), BACKUP LAMPS SWITCH PNK (ENGINE HARNESS, APPROX 26 CM FROM BULKHEAD GROMMET) WIRE PNK PNK WIRE PNK WIRE SEAT BELT ALARM INSTRUMENT CLUSTER THIS CAN PLUG INTO TORQUE CONVERTER CLUTCH (TCC), STOP LAMPS SWITCH TRANSMISSION CONTROL MODULE (TCM) TURN SIGNAL FLASHER TURN-B/U FUSE VEHICLE CONTROL MODULE (VCM) VEHICLE SPEED SENSOR (VSS) BUFFER FUEL INJECTION PUMP FUEL SHUT-OFF SOLENOID W/BRAKE WARNING INDICATOR SYSTEM

1996 VFTC 7.20 +/- 1.20 OHMS BRN WIRE DASH LAMPS INPUT DK GRN WIRE FROM I/P FUSE BLOCK (TAIL LAMPS FUSE) GRY WIRE HEAD OFF PARK HEADLAMPS SWITCH I/P LAMPS DIMMER SWITCH INSTRUMENT CLUSTER LICENSE LAMPS, LEFT REAR LICENSE LAMPS, RIGHT REAR MARKER LAMPS (PROVISIONS FOR) ORG/ WIRE PANEL ILLUMINATION PANEL LAMPS SWITCH PARK PARK, TURN SIGNAL (T/S) LAMP LEFT FRONT PARK, TURN SIGNAL (T/S) LAMP RIGHT FRONT PRNDL LAMP SEAT BELT ALARM SIDE MARKER LAMP LEFT FRONT SIDE MARKER LAMP RIGHT FRONT SIDE MARKER LAMP, LEFT REAR (PROVISIONS FOR) SIDE MARKER LAMP, RIGHT REAR (PROVISIONS FOR) TAIL TAIL, STOP/TURN SIGNAL LAMPS LEFT (PROVISIONS FOR) TAIL, STOP/TURN SIGNAL LAMPS RIGHT (PROVISIONS FOR)