Chevrolet RV Cutaway G3500 (1997-2013) underhood fuse/relay center Wiring diagrams

2 12 PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) ABS FUSE ABS IND. BATTERY SIGNAL GROUND BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRAKE IND BRAKE PRESSURE DIFFERENTIAL SWITCH (ON LEFT FRAME RAIL, NEAR CENTER OF VEHICLE) BRN WIRE DAYTIME RUNNING LAMP CONTROL MODULE (UNDER LEFT SIDE OF DASH) DK GRN WIRE ELECTRONIC BRAKE CONTROL MODULE (ON LEFT FRAME RAIL NEAR CENTER OF VEHICLE) GAUGES FUSE 4 HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START I/P FUSE BLOCK (ON LEFT LOWER KICK PANEL) IGNITION ABS IND GROUND BRAKE SW INPUT INSTRUMENT CLUSTER LEFT FRONT WHEEL SPEED SENSOR LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE PASSLOCK MODULE (BELOW CENTER OF DASH) PNK WIRE PPL PPL PPL 1807 680 PPL SERIAL DATA PPL/WHT WIRE RED WIRE RIGHT FRONT WHEEL SPEED SENSOR SENSOR HIGH SENSOR HIGH SENSOR LOW SENSOR LOW 873 833 SERAIL DATA TAN WIRE TAN/WHT WIRE TCC/ STOPLAMP SWITCH (ON BRAKE PEDAL SUPPORT) UNDERHOOD FUSE/RELAY CENTER UNDERHOOD FUSE/RELAY CENTER (LEFT SIDE OF ENGINE COMPT) VEHICLE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (LEFT SIDE OF TRANSMISSION) VSS VSS SIG VSS SIG DIAGNOSTIC SIG SERIAL DATA BRAKE IND INPUT EBCM GROUND WARNING SYSTEMS YEL WIRE YEL/BLK WIRE

2 12 PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) ABS FUSE ABS IND. BATTERY SIGNAL GROUND BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRAKE IND BRAKE PRESSURE DIFFERENTIAL SWITCH (ON LEFT FRAME RAIL, NEAR CENTER OF VEHICLE) BRN WIRE DAYTIME RUNNING LAMP CONTROL MODULE (UNDER LEFT SIDE OF DASH) DK GRN WIRE ELECTRONIC BRAKE CONTROL MODULE (ON LEFT FRAME RAIL NEAR CENTER OF VEHICLE) GAUGES FUSE 4 HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START I/P FUSE BLOCK (ON LEFT LOWER KICK PANEL) IGNITION ABS IND GROUND BRAKE SW INPUT INSTRUMENT CLUSTER LEFT FRONT WHEEL SPEED SENSOR RIGHT FRONT WHEEL SPEED SENSOR LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE PASSLOCK MODULE (BELOW CENTER OF DASH) PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (BEHIND CENTER OF DASH) PPL PPL PPL 1807 680 PPL SERIAL DATA PPL/WHT WIRE RED WIRE SENSOR HIGH SENSOR HIGH SENSOR LOW SENSOR LOW 873 833 SERIAL DATA TAN WIRE TAN/WHT WIRE TCC/ STOPLAMP SWITCH (ON BRAKE PEDAL SUPPORT) UNDERHOOD FUSE/RELAY CENTER UNDERHOOD FUSE/RELAY CENTER (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (LEFT SIDE OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER MODULE (UNDER GLOVE BOX) VSS VSS SIG VSS SIG DIAGNOSTIC SIG SERIAL DATA BRAKE IND INPUT EBCM GROUND WARNING SYSTEMS YEL WIRE YEL/BLK WIRE

2 12 PPL DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) ABS FUSE ABS IND. BATTERY SIGNAL GROUND BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRAKE IND BRAKE PRESSURE DIFFERENTIAL SWITCH (ON LEFT FRAME RAIL, NEAR CENTER OF VEHICLE) BRN WIRE DAYTIME RUNNING LAMP CONTROL MODULE (UNDER LEFT SIDE OF DASH) DK GRN WIRE ELECTRONIC BRAKE CONTROL MODULE (ON LEFT FRAME RAIL NEAR CENTER OF VEHICLE) GAUGES FUSE 4 HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START I/P FUSE BLOCK (ON LEFT LOWER KICK PANEL) IGNITION ABS IND GROUND BRAKE SW INPUT INSTRUMENT CLUSTER LEFT FRONT WHEEL SPEED SENSOR LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE PASSLOCK MODULE (BELOW CENTER OF DASH) PNK WIRE PPL PPL PPL 1807 680 PPL SERIAL DATA PPL/WHT WIRE RED WIRE RIGHT FRONT WHEEL SPEED SENSOR SENSOR HIGH SENSOR HIGH SENSOR LOW SENSOR LOW 873 833 SERAIL DATA TAN WIRE TAN/WHT WIRE TCC/ STOPLAMP SWITCH (ON BRAKE PEDAL SUPPORT) UNDERHOOD FUSE/RELAY CENTER UNDERHOOD FUSE/RELAY CENTER (LEFT SIDE OF ENGINE COMPT) VEHICLE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR (LEFT SIDE OF TRANSMISSION) VSS VSS SIG VSS SIG DIAGNOSTIC SIG SERIAL DATA BRAKE IND INPUT EBCM GROUND WARNING SYSTEMS YEL WIRE YEL/BLK WIRE

15-77 CM FROM 6-PIN CONNECTOR ON RIGHT FRAME RAIL) 4.3L 4.3L, GVW OVER 8500 LBS., FEDERAL EMISSIONS 5.0/ 5.7L 5.0L, 5.7L, 7.4L 7.4L 7.4L ONLY 7.4L OTHERS 7.4L-ENGINE HARNESS, APPROX 14 CM FROM FUEL INJECTOR BREAKOUT) 7.4L/ 4.3L SECONDARY AIR INJECTION REACTION (AIR) PUMP CLUTCH (7.4L ONLY) A/C COMPRESSOR CLUTCH A/C LOW PRESSURE CUTOUT SWITCH FUEL PUMP AND SENDER BANK 1 SENSOR 1 BANK 1 SENSOR 3 (EX 7.4L) BANK 1 SENSOR 2 BANK 2 SENSOR 1 DIODE BANK 2 SENSOR 2 (7.4L) BASE BLK WIRE BLK/WHT WIRE BLOWER MOTOR RESISTOR/ RELAY BRAKE PRESSURE DIFFERENTIAL SWITCH CRUISE CONTROL MODULE DATA LINK CONNECTOR (DLC) ELECTRONIC BRAKE CONTROL MODULE (EBCM) EXCEPT 7.4L EXCEPT 7.4L-ENGINE HARNESS, 4-16 CM FROM FUEL INJECTOR BREAKOUT) FUEL PUMP RELAY GASOLINE ENGINES HEATED OXYGEN SENSOR HEATED OXYGEN SENSOR HEATED OXYGEN SENSOR HEATED OXYGEN SENSOR UNDERHOOD FUSE/RELAY CENTER HORNS IGNITION CONTROL MODULE (ICM) INFLATABLE RESTRAINT FRONT END DISCRIMINATING SENSOR INFLATABLE RESTRAINT SENSING AND DIAGNOSTIC MODULE INSTRUMENT CLUSTER PASSLOCK MODULE LAMP GROUP LEFT FRONT DOOR JAMB SWITCH LEFT FRONT POWER DOOR LOCK SWITCH LEFT FRONT POWER SIDE WINDOW SWITCH LEFT POWER OUTSIDE REAR VIEW MIRROR MASS AIRFLOW (MAF) SENSOR NCA WIRE NON- BASE OTHERS OTHERS 7.4L OTHERS EXCEPT 7.4L PARK/ NEUTRAL POSITION SWITCH POWER OUTSIDE REAR VIEW MIRROR REMOTE CONTROL SWITCH RIGHT FRONT DOOR JAMB SWITCH RIGHT FRONT POWER DOOR LOCK SWITCH RIGHT FRONT POWER SIDE WINDOW SWITCH RIGHT POWER OUTSIDE REAR VIEW MIRROR STARTER RELAY TAN/WHT WIRE UNDERHOOD FUSE/RELAY CENTER UNDERHOOD FUSE/RELAY CENTER A/C LOW PRESSURE CUTOUT SWITCH UNDERHOOD REEL LAMP UNDERHOOD LAMP VEHICLE CONTROL MODULE (VCM)

A/C COMPRESSOR CLUTCH AMBULANCE PACKAGE AUXILIARY BLOWER MOTOR AUXILIARY BLOWER MOTOR CENTER HIGH MOUNTED STOPLAMP BLK WIRE BLK/WHT WIRE BLOWER MOTOR RESISTOR/ RELAY BRAKE PRESSURE DIFFERENTIAL SWITCH CENTER HIGH MOUNTED STOPLAMP DATA LINK CONNECTOR (DLC) DIESEL ENGINES DIODE ELECTRONIC BRAKE CONTROL MODULE (EBCM) FRONT AUXILIARY HVAC CONTROL MODULE HEATER AND A/C CONTROL LOGIC MODULE FUEL HEATER FUEL LIFT PUMP FUEL PUMP RELAY FUEL SENDER BUFFER MODULE GLOW PLUG RELAY HORNS INSTRUMENT CLUSTER LAMP GROUP LEFT REAR PARK/ STOP LAMP LEFT REAR PARK/ TURN LAMP LEFT BACKUP LAMP NCA WIRE PARK/ NEUTRAL POSITION SWITCH PASSENGER VANS ONLY PASSLOCK MODULE (BLUNT CUT) POWERTRAIN CONTROL MODULE (PCM) REAR AUXILIARY HVAC CONTROL MODULE AUXILIARY BLOWER MOTOR SWITCH RIGHT BACKUP LAMP LICENSE LAMP RIGHT POWER SEAT SWITCH RIGHT REAR DOOR JAMB SWITCH SIDE DOOR JAMB SWITCH RIGHT REAR PARK/ TURN LAMP RIGHT REAR PARK/ STOP LAMP SIDE DOOR JAMB SWITCH STARTER RELAY TAN/WHT WIRE UNDERHOOD FUSE/RELAY CENTER UNDERHOOD LAMP UNDERHOOD REEL LAMP VEHICLE SPEED SENSOR BUFFER W/ AUXILIARY HEAT ONLY W/ AUXILIARY HEAT, A/C W/ POWER PASSENGER SEAT W/O POWER PASSENGER SEAT WATER IN FUEL INDICATOR

1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 34 35 PNK WIRE 4-SPEED TRANS. ONLY 7 8 9 10 11 12 PNK PNK PNK PNK WIRE A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ECM 1 FUSE ENG 1 FUSE EXHAUST GAS RECIRCULATION VALVE (TOP FRONT OF ENGINE) FLUID TEMP SENSOR SIGNAL FLUID TEMP SENSOR GROUND FUEL INJ 1 FUEL INJ 2 FUEL INJ 3 FUEL INJ 4 FUEL INJ 5 FUEL INJ 6 FUEL INJ 7 FUEL INJ 8 GRN WIRE GRY WIRE HOT IN RUN OR START IGNITION PRESSURE CONTROL SOLENOID VALVE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT PNK WIRE NCA WIRE PNK 1 2 WIRE PNK 13 14 15 16 17 WIRE PNK LT WIRE PNK PNK PPL PNK PNK 1 2 3 4 5 6 7 8 WIRE PNK PPL WIRE PNK WIRE PNK/BLK WIRE PPL RED WIRE RED/BLK WIRE TAN WIRE TAN/BLK WIRE TCC SOLENOID VLAVE TCC PCM SOLENOID VALVE 3-2 SHIFT SOLENOID TRANS.) UNDERHOOD FUSE/RELAY CENTER WHT WIRE YEL WIRE YEL/BLK WIRE

18 19 20 21 22 23 PNK WIRE 7 8 9 10 11 12 PNK PNK PNK PNK WIRE AIR FUSE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM-B FUSE FUEL LVL INPUT FUEL PUMP RELAY FUEL PUMP, SENDER (IN FUEL TANK UNDER REAR OF VEHICLE) SIG OUT SIG IN FUEL TANK PRESSURE SENSOR (IN FUEL TANK) GAUGES FUSE 4 GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN OFF, RUN OR START HOT IN RUN OR START I/P FUSE BLOCK INPUT 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 AIRFLOW SENSOR (PART OF AIR INTAKE DUCT, TOP FRONT OF ENGINE) ODOMETER SPEEDOMETER/ ORG/ WIRE PNK 1 2 WIRE PNK PNK 1 2 3 4 5 6 7 8 9 10 11 WIRE PNK WIRE PPL PPL PNK WIRE RED WIRE RED/BLK WIRE SECONDARY AIR INJECTION REACTION PUMP CLUTCH SECONDARY AIR INJECTION REACTION PUMP RELAY SECONDARY AIR INJECTION REACTION SOLENOID SENSOR, BANK 2 SENSOR 1) TAN WIRE TAN/WHT WIRE THROTTLE POSITION SENSOR (ON SIDE OF THROTTLE BODY) TRANS FUSE 20 UNDERHOOD FUSE/RELAY CENTER WHT WIRE YEL WIRE YEL/BLK WIRE

18 19 20 21 22 23 PNK WIRE 420 1807 PPL PPL BRAKE SWITCH INPUT SERIAL DATA 5-VOLT REFERENCE A/C COMP CYCLING SW A/C COMPRESSOR ENABLE RELAY A/C REQUEST SIG AIR CONDITIONING SYSTEM AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR BATTERY BATTERY RANGE SIG B RANGE SIG A BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE COIL CRUISE CONTROL MODULE (FRONT OF ENGINE COMPARTMENT NEAR LEFT FENDER) CRUISE CTRL SIG-ENG DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DISTRIBUTOR DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EGR VALVE CTRL ELECTRONIC BRAKE CONTROL MODULE (EBCM) (LEFT FRAME RAIL NEAR CENTER OF VEHICLE) FUEL PUMP RLY FEED 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 GRY WIRE HIGH VOLTAGE COIL WIRE HOT IN RUN I/P FUSE BLOCK IGNITION IGNITION COIL (TOP REAR OF ENGINE) IGNITION CONTROL MODULE (TOP RIGHT SIDE OF ENGINE, AT IGNITION COIL) LT BLU/BLK WIRE LT BLU/WHT WIRE ORG/ WIRE PCS HIGH INPUIT SPEED SENS LOW INPUT SPEED SENS HIGH IC CNTRL PCS LOW GROUND GROUND SENSOR GROUND PNK IGNITION WIRE PNK PNK 1 2 3 4 5 6 7 8 9 10 11 WIRE PNK WIRE PPL PPL 420 PPL PNK WIRE RADIO RANGE SIG C 5 VOLTS REFERENCE FUEL LVL MODULE RED WIRE RED/BLK WIRE SENSOR GROUND SERIAL DATA VSS SIGNAL SOLID STATE SPEED SENSOR INPUT CRUISE ENGAGED OUTPUT STOPLAMP SWITCH INPUT TAN/WHT WIRE TCC SIGNAL TCC/STOPLAMP SWITCH (BEHIND DASH, ON BRAKE PEDAL SUPPORT) UNDERHOOD FUSE/RELAY CENTER VEHICLE CONTROL MODULE (VCM) (LEFT SIDE OF ENGINE COMPARTMENT) VSS SIGNAL OUTPUT VSS SIGNAL OUTPUT MAL FUNC LP OUTPUT 389 419 WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BRN WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENG 1 FUSE EXHAUST GAS RECIRCULATION VALVE (TOP LEFT SIDE OF ENGINE) FUEL INJ 1 FUEL INJ 2 FUEL INJ 3 FUEL INJ 4 FUEL INJ 5 FUEL INJ 6 FUEL INJ 7 FUEL INJ 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 (ON FRONT OF ENGINE, PART OF AIR INTAKE DUCT) LT BLU WIRE LT BLU/ WHT WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE PNK PNK 1 2 WIRE PNK PNK 13 14 WIRE PNK PNK 5 6 WIRE PNK WIRE PNK/BLK WIRE PPL PPL PPL 4 5 PPL/ WHT WIRE PPL/WHT WIRE PRESSURE PRESSURE CONTROL SOLENOID VALVE PRESSURE SWITCH RED WIRE RED/BLK WIRE SOLENOID SOLENOID 1-2 SOLENOID 2-3 SWITCH TAN WIRE TAN/ WHT WIRE TAN/WHT WIRE TCC PWM TRANS FLUID TEMPERATURE SENSOR TRANS FUSE 20 UNDERHOOD FUSE/RELAY CENTER WHT PPL/ WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

20 21 PPL A/C COMPRESSOR ENABLE RELAY A/C LOW PRESSURE SIG A/C REQUEST SIGNAL AIR CONDITIONING SYSTEM AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR (LEFT SIDE OF TRANSMISSION) B(+) BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CRUISE CONTROL MODULE (FRONT OF ENGINE COMPT NEAR LEFT FENDER) CRUISE CTRL ENGAGED CRUISE CTRL SIG-ENGAGED CTRL EST DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DISTRIBUTOR DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM I FUSE ECM-B FUSE EGR VALVE CTRL 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 RELAY (ON LEFT SIDE OF ENGINE COMPT, IN UNDERHOOD FUSE/RELAY CENTER) GROUND GRY WIRE HIGH VOLTAGE COIL WIRE HOT AT ALL TIMES HOT IN RUN OR START IGN FEED IGN FEED TRANS RANGE B INPUT TRANS RANGE A INPUT 1225 1224 PNK WIRE IGNITION COIL (TOP REAR OF ENGINE) IGNITION CONTROL MODULE (TOP REAR OF ENGINE, ON IGNITION COIL) LT BLU/BLK WIRE LT BLU/WHT WIRE NCA WIRE ORG/ WIRE PC SOL VLV HIGH SENS LOW SENS HIGH ELEC SPK TIMING CTRL SIG PC SOL VLV LOW GROUND GROUND SENS GROUND 551 451 PNK 14 15 16 WIRE PNK IGN FEED WIRE PNK WIRE PPL PPL PNK PNK 1 2 3 WIRE PPL PPL 420 1807 BRAKE SW INPUT SERIAL DATA PPL PPL ANTI-LOCK BRAKES SYSTEM PPL SIGNAL RETURN PPL TCC/STOPLAMP INPUT RADIO RED WIRE RED/BLK WIRE SIGNAL TIMING CTRL ELEC SPK SPEED SENSOR INPUT TAN/WHT WIRE TRANS RANGE C INPUT UNDERHOOD FUSE/RELAY CENTER VEHICLE CONTROL MODULE (VCM) (LEFT SIDE OF ENGINE COMPARTMENT) VSS SIGNAL VSS OUTPUT CHECK ENGINE LP CTRL 389 419 WHT WIRE WHT/BLK WIRE