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

BASE MODELS BLK WIRE CONVENIENCE CENTER (LEFT SIDE OF DASH) DOOR JAMB SWITCH HARN BREAKOUT) DOOR JAMB SWITCH HARNESS BREAKOUT) GROUND GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (LEFT SIDE OF DASH, LEFT DOOR LOCK SWITCH LEFT FRONT DOOR LOCK ACTUATOR LOCK LOCK SIG UNLOCK SIG LT BLU WIRE ORG/ WIRE POWER DOOR LOCK CONTROL MODULE (LEFT KICK PANEL) POWER DOOR LOCK RELAY (BEHIND RIGHT CENTER OF DASH) PWR ACCY FUSE A REAR DOOR LOCK ACTUATOR REAR DOOR LOCK SWITCH RIGHT BODY HARNESS RIGHT DOOR LOCK SWITCH RIGHT FRONT DOOR LOCK ACTUATOR SIDE DOOR CONTACTOR (RIGHT "B" PILLAR) SIDE DOOR JAMB SWITCH SIDE DOOR LOCK ACTUATOR SIDE DOOR SW BATTERY (B+) LOCK SIG TAN WIRE UNLOCK UPFITTER PACKAGE UPFITTER PACKAGE BASE MODELS WHT WIRE WHT/BLK WIRE

ASH TRAY LAMP BASE BATTERY BLK WIRE BRIGHT ADJUST BRN WIRE CENTER DOME AND READING LAMP (READING LAMPS W/ CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) 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 AND START I/P COMPART- MENT LAMP I/P FUSE BLOCK IGNITION ILLUMINATED ENTRY MODULE (ON RIGHT LOWER KICK PANEL) JAMB SW JAMB SWITCH LAMP LEFT FRONT DOOR JAMB SWITCH LEFT FRONT POWER DOOR LOCK SWITCH LEFT FRONT POWER SIDE WINDOW SWITCH LEFT STEPWELL LAMP LEFT SUNSHADE MIRROR LAMP NCA WIRE NON BASE ONLY NON BASE UPFITTER PROV. NON- BASE OPTION ORG/ WIRE PARADE MODE SWITCH PARK LPS FUSE 9 PARK SWITCH PNK WIRE POWER DOOR LOCK CONTROL MODULE (ON LEFT KICK PANEL) POWER MIRRORS SYSTEM PPL PPL W/O POWER DOOR LOCKS W/ POWER DOOR LOCKS PWR ACCY FUSE A READING LAMPS REAR DOME AND READING LAMP (READING LAMPS W/ REAR DOOR) RIGHT FRONT DOOR JAMB SWITCH RIGHT FRONT POWER DOOR LOCK SWITCH RIGHT FRONT POWER SIDE WINDOW SWITCH RIGHT STEPWELL LAMP RIGHT SUNSHADE MIRROR LAMP SIDE DOOR JAMB SWITCH SIDE STEPWELL LAMP TO I/P FUSE BLOCK (DIAGRAM 3 OF 3) W/O KEYLESS ENTRY WHT WIRE WHT/BLK WIRE

1995 VFTC ASH TRAY LAMP BATTERY BLK WIRE BRIGHT ADJUST BRN WIRE CENTER DOME AND READING LAMP (READING LAMPS W/ CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) EB 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 JAMB SW LAMP LEFT FRONT DOOR JAMB SWITCH LEFT FRONT POWER SIDE WINDOW SWITCH LEFT FRONT POWER DOOR LOCK SWITCH LEFT STEPWELL LAMP LEFT SUNSHADE MIRROR LAMP NCA WIRE NON BASE BASE NON BASE ONLY OPTION OPTION) OPTION) ORG/ WIRE PARADE MODE SWITCH PARK LPS FUSE 9 PARK SWITCH PNK WIRE POWER DOOR LOCK CONTROL MODULE (ON LEFT KICK PANEL) POWER MIRRORS SYSTEM PPL PPL/WHT WIRE PWR ACCY FUSE A READING LAMPS REAR DOME AND READING LAMP (READING LAMPS W/ REAR DOOR) REMOTE CONTROL DOOR LOCK RECEIVER (RIGHT KICK PANEL) RIGHT FRONT DOOR JAMB SWITCH RIGHT FRONT POWER DOOR LOCK SWITCH RIGHT FRONT POWER SIDE WINDOW SWITCH RIGHT STEPWELL LAMP SIDE STEPWELL LAMP RIGHT SUNSHADE MIRROR LAMP SIDE DOOR JAMB SWITCH TO I/P FUSE BLOCK (DIAGRAM 3 OF 3) UPFITTER PROV. BASE W/ KEYLESS ENTRY (UP=UPFITTER PROVISION) W/ UP (W/O UP: RIGHT BODY HARN, 13 CM FROM SIDE DOOR JAMB SWITCH BREAKOUT) W/O UP WHT WIRE WHT/BLK WIRE

195 156 LOCK OUT DOME LAMPS BATT (B+) BATT (B+) RR DOOR UNLK PASS DRS UNLK IGNITION DOME LMP OFF PROGRAM SIG BLK WIRE BLK/WHT WIRE CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DOOR LOCK CONTROL MODULE (ON LEFT KICK PANEL) DRIVER DOOR LOCK ACTUATOR DRIVER DR UNLK UNLOCK IN DRIVER POWER DOOR LOCK SWITCH FRONT PASSENGER DOOR LOCK ACTUATOR FRONT PASSENGER POWER DOOR LOCK SWITCH GAUGES FUSE 4 GROUND GROUND INT LTS IN LOCK SIG UNLOCK SIG PPL GRY WIRE HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK (ON LEFT LOWER KICK PANEL) PWR ACCY FUSE A LOCK LT BLU WIRE ORG/ WIRE PNK WIRE POWER DOOR LOCK RELAY (BEHIND CENTER OF DASH) REAR CARGO DOOR LOCK SWITCH REAR DOOR LOCK ACTUATOR REMOTE CONTROL DOOR LOCK RECEIVER (BEHIND CENTER OF DASH) SIDE DOOR CONTACTOR (RIGHT "B" PILLAR) SIDE DOOR JAMB SWITCH SIDE DOOR LOCK ACTUATOR SIDE DOOR SW BATTERY (B+) TAN WIRE UNLOCK WHT WIRE WHT/BLK WIRE

1000 OHMS 2 OHMS AIR BAG INDICATOR AIR BAGS FUSE 10 BASE BLK WIRE BLK/WHT WIRE BRN WIRE DATA LINK CONNECTOR (DLC) (PARTIAL) (UNDER LEFT SIDE OF DASH) PPL DK GRN WIRE DK GRN/WHT WIRE GAUGES FUSE 4 GROUND GRY WIRE HIGH CONTROL CLASS 2 SERIAL DATA PPL HIGH CONTROL LOW CONTROL LOW CONTROL INDICATOR CONTROL HOT IN RUN, START I/P FUSE BLOCK (ON LEFT LOWER KICK PANEL) IGNITION INFLATABLE RESTRAINT DIAGNOSTIC RESISTOR INFLATABLE RESTRAINT I/P MODULE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER LEFT FRONT SEAT) INFLATABLE RESTRAINT STEERING WHEEL MODULE INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INSTRUMENT PANEL CLUSTER (IPC) MULTI-FUNCTION ALARM MODULE (UNDER LEFT SIDE OF DASH) NCA WIRE OVER 8500 GVW PNK WIRE PPL SEAT BELT SWITCH (OPEN WHEN BUCKLED) (AT DRIVER'S STATIONARY BELT CONNECTOR) SEAT BELT SWITCH GROUND SENSOR SIGNAL GROUND SHORTING BAR W/O PASSENGER SUPPLEMENTAL INFLATABLE RESTRAINT W/PASSENGER SUPPLEMENTAL INFLATABLE RESTRAINT WHT WIRE WHT/BLK WIRE YEL WIRE

21 22 PPL 24 25 26 PNK WIRE A/C REQ A/C SYSTEM ANTI-LOCK BRAKE SYSTEM AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR BLK WIRE BLK/WHT WIRE BLU/BLK WIRE BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM CRUISE ENG DISTRIBUTOR DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EAVP PURGE CHARGE IND AIR PUMP EVAP VENT MIL 2-3 SHIFT 1-2 SHIFT VSS VSS TFT SENS GEN F EVAPORATIVE EMISSIONS CANISTER PURGE SOLENOID VALVE (RIGHT SIDE OF ENGINE) GEN TO GRN WIRE GROUND EGR SOL TCC SOL A/C CLUTCH GRY WIRE HIGH VOLTAGE COIL WIRE IAC COIL B IAC COIL B IAC COIL A IAC COIL A IDLE AIR CONTROL VALVE (TOP LEFT SIDE OF ENGINE) IGNITION COIL (TOP RIGHT SIDE OF ENGINE) IGNITION CONTROL MODULE (TOP RIGHT SIDE OF ENGINE, AT IGNITION COIL) LOW REF LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE LT PPL MAF SENS MAP SENS PC SOL EGR SUPP PC SOL F PMP RLY PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (ON LEFT INNER FENDER) PPL PPL FUEL LEV PPL FUEL LEV A/C LOW PPL/WHT WIRE RED WIRE RED/BLK WIRE SOLID STATE STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TRANS C TRANS A PRES SENS PNK WIRE VEHICLE SPEED SENSOR (ON SIDE OF TRANSMISSION) VSS LOW VSS HI AT ISS HI AT ISS LO TP SENS IAT SENS SIG IC TIMING WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK 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

"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

"SERV ENG SOON" IND ESO CTRL "SERV THROTTLE SOON" IND A/C ENABLE PCM GND PCM GND A/C SYSTEM APP 2 REF VOLTAGE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR (DLC) DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE ELECTRONIC BRAKE CONTROL MODULE (LEFT FRAME RAIL, NEAR CENTER OF VEHICLE) ENG 1 FUSE ENG FUSE FUEL INJ CTRL FUSIBLE LINK FUSIBLE LINK (22 GA-RUST) FUSIBLE LINK FUSIBLE LINK GLOW PLUG 3 GLOW PLUG 1 GLOW PLUG 5 GLOW PLUG 6 GLOW PLUG 7 GLOW PLUG 2 GLOW PLUG 4 GLOW PLUG 8 GLOW PLUG RELAY (TOP RIGHT SIDE OF ENGINE) GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK 11 12 WIRE PNK PNK 339 339 IGNITION IGNITION WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (BEHIND CENTER OF DASH) PPL RED WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE-RELAY CENTER WASTEGATE SOL CTRL ESO SOL CTRL WASTEGATE SOLENOID (TOP RIGHT SIDE OF ENGINE) WHT/BLK 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