Chevrolet Chevy Express G3500 (1996-2012) wht Wiring diagrams

BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CENTER HIGH MOUNTED STOP LAMP (CHMSL) CRUISE CONTROL SYSTEM DK BLU WIRE DK DK RIGHT FRONT INNER PARK/ TURN SIGNAL LAMP DK GRN WIRE HAZ SW TN SW HAZARD HAZARD FUSE 5 HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK TURN- B/U FUSE 16 I/P RELAY CENTER (UNDER LEFT SIDE OF DASH) INSTRU- MENT PANEL CLUSTER LEFT LEFT FRONT MARKER LAMP LEFT TAIL LAMP LEFT TURN IND LT BLU WIRE LT GRN WIRE MULTI- FUNCTION SWITCH NORMAL OFF HEAD PARK ORG/ WIRE PARK LPS FUSE 9 PNK WIRE PPL RIGHT RIGHT FRONT MARKER LAMP RIGHT FRONT OUTER PARK/ TURN SIGNAL LAMP RIGHT REAR PARK/ TURN SIGNAL LAMP LEFT REAR PARK/ TURN SIGNAL LAMP RIGHT TAIL LAMP LICENSE LAMP RIGHT TURN IND STOP FUSE 1 TCC/ BRAKE SWITCH (BEHIND DASH, ON TURN PWR HAZ PWR FLSHR OUT GND TURN/HAZARD LAMP FLASHER W/ OPTIONAL TRAILER WIRING PACKAGE) 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

A/T SHIFT LOCK SOLENOID ASHTRAY LAMP AUXILIARY BATTERY (DIESEL) AUXILIARY POWER OUTLET BATTERY BLK WIRE BLK/WHT WIRE CIGARETTE LIGHTER CONVENIENCE CENTER CONVENIENCE CENTER (LEFT SIDE OF DASH) DATA LINK CONNECTOR DAYTIME RUNNING LAMP (DRL) CONTROL MODULE HEADLAMP SWITCH I/P COMPARTMENT LAMP I/P RELAY CENTER IGNITION SWITCH W/ UPFITTER PROVISIONS ILLUMINATED ENTRY MODULE INSTRUMENT CLUSTER LEFT FRONT PARK AND TURN SIGNAL LAMP (INNER) (W/ COMPOSITE HEADLAMPS) LEFT FRONT PARK AND TURN SIGNAL LAMP (OUTER) (W/ COMPOSITE HEADLAMPS) LEFT FRONT PARK AND TURN SIGNAL LAMP (W/ SEALED BEAM HEADLAMPS) LEFT FRONT SIDE MARKER LAMP LEFT HEADLAMP (W/ SEALED BEAM HEADLAMPS) LEFT HIGH BEAM HEADLAMP (W/ COMPOSITE HEADLAMPS) LEFT LOW BEAM HEADLAMP (W/ COMPOSITE HEADLAMPS) LEFT POWER SEAT SWITCH LEFT SUN SHADE MIRROR LAMP LOW ENGINE COOLANT LEVEL INDICATOR MODULE (DIESEL) LOW ENGINE COOLANT LEVEL INDICATOR SENSOR (DIESEL) MULTI-FUNCTION ALARM MODULE NCA WIRE OF ENGINE COMPT) OR LEFT FRONT DOOR JAMB SWITCH (DIAGRAM 2 OF 3) OR RIGHT FRONT DOOR JAMB SWITCH (DIAGRAM 2 OF 3) P/B BOOSTER FLUID FLOW SWITCH POWER ANTENNA ASSEMBLY POWER DOOR LOCK CONTROL MODULE POWER DOOR LOCK RELAY RADIO REMOTE CONTROL DOOR LOCK RECEIVER SIDE DOOR JAMB SWITCH (W/ UPFITTER PROVISIONS) RIGHT FRONT RIGHT FRONT PARK AND TURN SIGNAL LAMP (INNER) (W/ COMPOSITE HEADLAMPS) RIGHT FRONT PARK AND TURN SIGNAL LAMP (OUTER) (W/ COMPOSITE HEADLAMPS) RIGHT FRONT PARK AND TURN SIGNAL LAMP (W/ SEALED BEAM HEADLAMPS) RIGHT FRONT SIDE MARKER LAMP RIGHT HEADLAMP (W/ SEALED BEAM HEADLAMPS) RIGHT HIGH BEAM HEADLAMP (W/ COMPOSITE HEADLAMPS) RIGHT LOW BEAM HEADLAMP (W/ COMPOSITE HEADLAMPS) RIGHT SUN SHADE MIRROR LAMP SEAT BELT SWITCH STEERING COLUMN GROUND TEMPERATURE VALVE ACTUATOR MOTOR HEATER AND A/C CONTROLLER TURN/ HAZARD LAMP FLASHER UPFITTER PROVISIONS RELAY W/ UPFITTER PROVISIONS W/O KEYLESS ENTRY WHT WIRE

1226 1225 RANGE MODE SEL C RANGE MODE SEL B RANGE MODE SEL A 27 28 29 30 31 PPL 3/2 SHIFT SOL. PRESSURE CONTROL SOLENOID VALVE 397 1272 PPL APP 2 GND APP 1 GND APP 1 SIG 7 8 9 10 12 13 14 15 VSS RTN GROUND A/T FLUID PRESSURE (TFP) MANUAL VALVE POSITION SWITCH AIR CONDITIONING SYSTEM ANTI-LOCK BRAKE SYSTEM AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR (LEFT SIDE OF TRANSMISSION) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CLOSURE SIG BOOST SENS INPUT PRESSURE CTRL SOL CRUISE CONTROL SWITCH DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DK PNK/ PNK WIRE ECT SIG GRN WIRE GRY WIRE GRY/BLK WIRE IAT SIG APP 2 SIG GLOW PLUG RELAY PRESSURE CTRL SOL FUEL TEMP SENS TFT SENS LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK PNK PPL 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (PCM) (BEHIND CENTER OF DASH) PPL PPL CKP GROUND A/C REQUEST PPL TCC/ABS SW IN BRAKE SWITCH INPUT CRUISE SET/COAST SIG PPL/WHT WIRE RADIO, POWER STEERING CONTROL MODULE RED WIRE RED/BLK WIRE RESUME SENSOR GND SET- SHIFT SOL. SHIFT SOL. SOLID STATE TAN WIRE TAN/BLK WIRE TIMING STEPPER MTR (HIGH) CRUISE ON/OFF SW TIMING STEPPER MTR (LOW) TIMING STEPPER MTR (LOW) TRANSMISSION SPEED INPUT TRANSMISSION TEMPERATURE SENSOR VEHICLE SPEED SENSOR (LEFT SIDE OF TRANSMISSION) VEHICLE SPEED SENSOR BUFFER (BELOW DASH, NEAR STEERING COLUMN) VSS SIG VSS SIG VSS HI VSS LO SECOND VSS SIG WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

27 28 29 30 31 PPL 5 VOLT REF BLK WIRE BLU WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE CMP SIG DK GRN WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (LEFT FRAME RAIL, NEAR CENTER OF VEHICLE) GRN WIRE GRY WIRE HIGH RES SIG HOT AT ALL TIMES HOT IN HOT IN OFF, RUN OR START I/P FUSE BLOCK IGNITION TIMING STEPPER MOTOR (TOP FRONT OF ENGINE) LT BLU WIRE LT GRN WIRE OPTICAL FUEL/ TEMPERATURE SENSOR (TOP CENTER OF ENGINE, ON FUEL INJECTION PUMP) ORG/ WIRE ORG/BLK WIRE PNK PNK PPL 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 WIRE PNK WIRE PNK/BLK WIRE PPL PPL PNK WIRE RED WIRE RED/BLK WIRE RUN WIRE SENS GRD STOP FUSE 1 TAN WIRE TAN/BLK WIRE TCC/STOPLAMP SWITCH (BEHIND DASH, ON BRAKE PEDAL SUPPORT) TRANS FUSE 20 WHT WIRE YEL WIRE YEL/BLK WIRE

"GLOW PLUGS" INDICATOR BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DK PNK WIRE ECM-B FUSE ENGINE SHUTOFF SOLENOID (TOP FRONT OF ENGINE) FUEL LIFT PUMP (LEFT FRAME RAIL, NEAR CENTER OF VEHICLE) FUEL PUMP PRIME CONNECTOR (LEFT SIDE OF ENGINE) FUEL PUMP RELAY (LEFT SIDE OF ENGINE COMPT, IN UNDERHOOD FUSE-RELAY CENTER) FUEL SOLENOID (ON REAR OF FUEL INJECTION PUMP) FUEL SOLENOID DRIVER (LEFT SIDE OF FUEL INJECTION PUMP) GAUGES FUSE 4 GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK INSTRUMENT CLUSTER LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK 11 12 WIRE PNK WIRE RED 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 SENSOR WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

2-3 SHIFT SOL CTRL AIR INJECTION RLY CTRL VSS SIGNAL OUT ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/WHT WIRE BLU DK WIRE BRN WIRE BRN/WHT WIRE CAM POS SENS SIGNAL CAMSHAFT POSITION SENSOR (PART OF DISTRIBUTOR, REAR TOP OF ENGINE) CRANKSHAFT POSITION SENSOR (LOWER FRONT OF ENGINE, NEAR CRANKSHAFT) DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP VENT VLV EVAPORATIVE EMISSION CANISTER VENT VALVE (ON LEFT FRAME RAIL, NEAR FUEL TANK) EVAPORATIVE EMISSIONS CANISTER PURGE SOLENOID VALVE (TOP LEFT SIDE OF ENGINE) FEED IGN IDLE AIR CONTROL VALVE (TOP RIGHT SIDE OF ENGINE) KNOCK SENS SIGNAL KNOCK SENSOR (ON LOWER LEFT SIDE OF ENGINE) KNOCK SENSOR (ON LOWER RIGHT SIDE OF ENGINE) LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MAP SIGNAL INTAKE AIR TEMP SENS ECT SENS SIGNAL NCA WIRE PNK IGN FEED SENS RTN SENS SIG WIRE PNK PNK 1 2 WIRE PNK WIRE PNK/BLK WIRE PPL PPL CKP POS SENS RTN VSS RTN VSS SIGNAL CKP POS SIGNAL IN PPL PPL PPL PPL 4 5 PPL/WHT WIRE RED WIRE RED/BLK WIRE RTN SECONDARY AIR INJECTION REACTION PUMP CLUTCH (LOWER RIGHT FRONT OF ENGINE) SENS RTN FUEL GAUGE PPL SENSOR SIGNAL TAN WIRE TAN/WHT WIRE THROTTLE POS SENS FUEL TANK PRESS SENS SIG VEHICLE CONTROL MODULE (VCM) (LEFT SIDE OF ENGINE COMPARTMENT) VEHICLE SPEED SENSOR (LEFT SIDE OF TRANS- MISSION) WHT 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 BLK WIRE BLK/WHT WIRE BRAKE FUSE 18 BRN WIRE BRN/WHT WIRE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FUEL GAUGE FUEL PUMP, SENDER (IN FUEL TANK) SIGNAL INPUT SIGNAL OUTPUT FUEL TANK PRESSURE SENSOR (IN FUEL TANK) GAUGES FUSE 4 GRY WIRE HOT IN RUN HOT IN RUN OR START I/P FUSE BLOCK INSTRUMENT CLUSTER LT BLU/WHT WIRE LT GRN WIRE MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR (TOP FRONT SIDE OF ENGINE) MASS AIRFLOW SENSOR (PART OF AIR INTAKE DUCT, FRONT TOP OF ENGINE) PNK 14 15 16 WIRE PNK PNK 13 14 WIRE PNK PNK 5 6 WIRE PNK WIRE PPL PPL PNK PNK 1 2 3 WIRE RED WIRE RED/BLK WIRE SERVICE ENGINE SOON INDICATOR SPEED METER TCC/STOP- LAMP SWITCH (BEHIND DASH, ON BRAKE PEDAL SUPPORT) THROTTLE POSITION SENSOR (ON SIDE OF THROTTLE BODY) WHT WIRE YEL 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