Chevrolet Chevy Express G2500 (1996-2012) red Wiring diagrams

ALL- DOWN ALL-UP BACK BLK WIRE CONVENIENCE CENTER (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE ENTIRE SEAT FOR- WARD FRONT DOWN FRONT UP FRONT UP UP HOT AT ALL TIMES I/P FUSE BLOCK LEFT POWER SEAT FORWARD/ REARWARD MOTOR LEFT POWER SEAT FRONT TILT MOTOR LEFT POWER SEAT REAR TILT MOTOR LEFT POWER SEAT SWITCH LEFT SEAT ADJUSTER MOTOR ASSEMBLY LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PWR ACCY FUSE A REAR DOWN DOWN REAR UP RED WIRE RIGHT POWER SEAT FORWARD/ REARWARD MOTOR RIGHT POWER SEAT FRONT TILT MOTOR RIGHT POWER SEAT REAR TILT MOTOR RIGHT POWER SEAT SWITCH RIGHT SEAT ADJUSTER MOTOR ASSEMBLY TAN WIRE YEL WIRE

AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION ASSEMBLY (6 SPEED A/T) AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) AUX/TRLR BCK/UP FUSE 26 BACKUP ALARM (REAR OF VEHICLE ON FRAME) BCK/UP LAMP PCB RELAY BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT BUS-DATA COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA BUS - DK BLU WIRE FRONT SEAT) GMLAN HI SPD GRN WIRE GRY WIRE HI SPD GMLAN DATA BUS - HI SPD GMLAN SERIAL DATA BUS + HOT AT ALL TIMES LEFT BACKUP LAMP (CARGO/ PASSENGER) LEFT TAIL/ STOP/ TURN SIGNAL LAMP LT GRN WIRE NCA WIRE PARK/NEUTRAL POSITION (PNP) SWITCH PROVISIONAL RED WIRE RELAY CTRL RIGHT BACKUP LAMP (CARGO/ PASSENGER) RIGHT TAIL/ STOP/ TURN SIGNAL LAMP SIG A SIG B SIG C TAIL LAMP BCK/UP FUSE 27 TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRAILER CONNECTOR (IF EQUIPPED) TRANS RNG SW SIG A TRANS RNG SW SIG B TRANS- MISSION CONTROL MODULE (TCM) TRANSMISSION CONTROL MODULE (TCM) (4 SPEED A/T) UNDERHOOD FUSE BLOCK W/ ELECTRICAL BACKUP CUTAWAY ALARM YEL WIRE

1996 VFTC BLK WIRE BULB TEST DIODE ARRAY DK BLU WIRE DRL FUSE 15 DRL INDICATOR GAUGES FUSE 4 GROUND HEAD HEAD- LAMP DIMMER SWITCH HEADLAMP SWITCH HI BEAM INDICATOR HI BM FEED HI BM INDICATOR DRL RELAY CTRL HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK IGNITION SWITCH INLINE DIODE 201 (I/P HARNESS UNDER LEFT SIDE OF I/P) INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT HI BEAM HEAD- LAMP LEFT LO BEAM HEADLAMP LIGHTING MAXI FUSE LOCK OFF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE OFF PARK ORG/ WIRE PARK BRAKE WARNING SWITCH (ON PARK BRAKE) PNK IGNITION LAMP FEED WIRE PNK WIRE RED WIRE RIGHT HI BEAM HEAD- LAMP RIGHT LO BEAM HEAD- LAMP RUN WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE-RELAY CENTER (ENGINE COMPARTMENT, LEFT FENDER) WHT WIRE YEL WIRE

BLK WIRE BULB TEST DIODE ARRAY DK BLU WIRE DRL FUSE 15 DRL INDICATOR GAUGES FUSE 4 GRN WIRE GROUND HEAD HEAD- LAMP DIMMER SWITCH HEADLAMP SWITCH HI BEAM INDICATOR HI BM FEED HI BM INDICATOR DRL RELAY CTRL HI LO HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK IGNITION SWITCH INLINE DIODE 201 (I/P HARNESS UNDER LEFT SIDE OF I/P) INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT HEAD- LAMP LIGHTING MAXI FUSE LOCK OFF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE OFF PARK ORG/ WIRE PARK BRAKE WARNING SWITCH (ON PARK BRAKE) PNK IGNITION LAMP FEED WIRE PNK WIRE RED WIRE RIGHT HEAD- LAMP RUN WIRE TAN WIRE TAN/WHT WIRE UNDERHOOD FUSE-RELAY CENTER (ENGINE COMPARTMENT, LEFT FENDER) WHT WIRE YEL WIRE

ABS FUSE AMBULANCE AUX-A FUSE AUX-B FUSE AUXILIARY BATTERY AUXILIARY BLOWER MOTOR HIGH SPEED RELAY AUXILIARY BLOWER MOTOR LOW SPEED RELAY AUXILIARY BLOWER MOTOR MEDIUM SPEED RELAY AUXILIARY BLOWER MOTOR LOW SPEED RELAY BATTERY BATTERY JUNCTION BLOCK BLK WIRE BLK/YEL WIRE BLOWER FUSE BLOWER MOTOR RESISTOR/ RELAY BRAKE FUSE 18 BRN WIRE CONVENIENCE CENTER CRUISE CONTROL MODULE (GASOLINE) CRUISE CONTROL SWITCH CRUISE FUSE 6 DIESEL ELECTRONIC BRAKE CONTROL MODULE (EBCM) FRONT AUXILIARY HVAC CONTROL MODULE HEATER AND A/C CONTROL LOGIC MODULE FUSIBLE LINK FUSIBLE LINK (10 GA- FUSIBLE LINK (10 GA-RUST) FUSIBLE LINK (14 GA- GASOLINE GENERATOR GLOWPLUG RELAY GRY WIRE HEATER AND A/C CONTROLLER HTR A/C FUSE 12 I/P FUSE BLOCK CRANK FUSE 8 WIPER FUSE 11 RADIO 1 FUSE 17 IGN A FUSE IGN B FUSE IGNITION SWITCH INLINE FUSE LEFT FRONT POWER SIDE WINDOW SWITCH LOCK LOCK LOCK OFF OFF LOCK OFF NCA WIRE OFF ORG/ WIRE P/B BOOSTER FLUID LOW ALARM PARK/ NEUTRAL POSITION SWITCH PASSENGER PNK WIRE PPL PWR WDO FUSE B REAR AUXILIARY TEMPERATURE VALVE ASSEMBLY RED WIRE RIGHT FRONT POWER SIDE WINDOW SWITCH (LEFT KICK PANEL) RR BLOWER FUSE RR HVAC FUSE 24 RUN WIRE RUST) STARTER RELAY STARTER SOLENOID TEMPERATURE VALVE ACTUATOR MOTOR TO TRANS FUSE (DIAGRAM 4 OF 4) TO UNDERHOOD FUSE-RELAY CENTER (DIAGRAM 2 OF 4) TO UPFITTER PROVISION RELAY (DIAGRAM 1 OF 4) TRAILER WIRING PROVISION UNDERHOOD FUSE/RELAY CENTER UPFITTER PROVISION CONNECTOR UPFITTER PROVISION RELAY (BEHIND LEFT B PILLAR) W/ REAR A/C W/ REAR A/C PASSENGER WHT WIRE YEL WIRE

A/C COMPRESSOR ENABLE RELAY A/C FUSE AUXILIARY POWER OUTLET BATT FUSE BLK WIRE CIG LTR FUSE 13 CIGARETTE LIGHTER CONVENIENCE CENTER CTSY FUSE 3 DATA LINK CONNECTOR (DLC) DAYTIME RUNNING LAMP (DRL) DIODE MODULE DRL FUSE 15 ECM-B FUSE FROM UNDERHOOD FUSE-RELAY CENTER (DIAGRAM 1 OF 4) FRONT DOME LAMP CENTER DOME LAMP FUEL PUMP RELAY HAZARD FUSE 5 HAZARD WARNING SWITCH HEADLAMP SWITCH HEATER AND A/C CONTROLLER MULTI- FUNCTION ALARM MODULE HORN FUSE HORN RELAY HTD MIR FUSE 2 I/P COMPARTMENT LAMP I/P FUSE BLOCK ILLUMINATED ENTRY MODULE LEFT FRONT POWER DOOR LOCK SWITCH LEFT POWER SEAT SWITCH LEFT STEPWELL LAMP REAR DOME LAMP LEFT SUN SHADE MIRROR LAMP LIGHTING FUSE NCA WIRE ORG/ WIRE OTHERS PARK LPS FUSE 9 PASSLOCK MODULE POWER ANTENNA ASSEMBLY POWER DOOR LOCK CONTROL MODULE POWER DOOR LOCK RELAY REMOTE CONTROL DOOR LOCK RECEIVER POWER OUTSIDE REAR VIEW MIRROR REMOTE CONTROL SWITCH PWR ACCY FUSE A PWR AUX FUSE 7 RADIO RADIO-B FUSE 19 RED WIRE RIGHT FRONT POWER DOOR LOCK SWITCH RIGHT REAR POWER DOOR LOCK SWITCH RIGHT STEPWELL LAMP SIDE STEPWELL LAMP RIGHT SUN SHADE MIRROR LAMP SECURITY/ STRG FUSE 21 STOP FUSE 1 TCC/STOP- LAMP SWITCH UNDERHOOD FUSE/RELAY CENTER UNDERHOOD LAMP UNDERHOOD REEL LAMP VEHICLE CONTROL MODULE (VCM) (GASOLINE) POWERTRAIN CONTROL MODULE (PCM) (DIESEL) W/ LAMP GROUP OPTION W/ POWER PASS SEAT (LEFT KICK PANEL) W/ UPFITTER PROVISIONS W/O KEYLESS ENTRY W/O UPFITTER PROVISSIONS

ANTENNA BASE BLK WIRE BREAKOUT) BREAKOUT, TOWARD REAR DOME LAMP BREAKOUT) BRN WIRE COMPUTER DATA LINES SYSTEM PPL CONVENIENCE CENTER (LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE FROM POWER WINDOW MOTOR BREAKOUT) FROM THE POWER WINOW BREAKOUT TOWARDS THE RADIO SPEAKER BREAKOUT) GRY WIRE HOT AT ALL TIMES HOT IN ACC OR RUN I/P FUSE BLOCK LEFT FRONT DOOR SPEAKER LEFT FRONT DOOR TWEETER SPEAKER LEFT REAR DOOR SPEAKER LEFT REAR SPEAKER LR SPEAKER (+) LR SPEAKER (-) RF SPEAKER (-) RF SPEAKER (+) DIMMING SIG LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE ORN/ PNK WIRE POWER ANTENNA SYSTEM POWER WINDOW BREAK- PPL CLASS 2 DATA PPL/WHT WIRE PREMIUM RADIO RADIO I FUSE 17 RADIO-B FUSE 19 RED WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT DOOR TWEETER SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR SPEAKER TAN WIRE W/ UPFITTER W/O UPFITTER WINDOW SWITCH BREAKOUT, YEL 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

"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