Chevrolet Chevy Express H2500 (2003-2003) lt blu/wht Wiring diagrams

1 2 6 8 20 21 22 23 24 40 42 47 48 51 62 63 GND TCC PWM CTRL PC SOL HI CTRL 1 8 17 18 19 20 24 27 32 33 34 40 53 57 58 60 64 67 72 74 75 79 80 GND AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR BLK WIRE BLK/WHT WIRE BRN WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE COOLANT TEMPERATURE SENSOR (ON LEFT SIDE OF ENGINE) FROM UNERHOOD PASS- THROUGH GROMMET BREAKOUT) LT GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACCY, RUN, START HOT IN RUN, START IGN 0 FUSE 6 INSTRUMENT PANEL CLUSTER LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE ORG/ WIRE ORG/BLK WIRE PC SOL LO CTRL PPL FRONT LOW SIG FRONT HIGH SIG PCM BATT FUSE 2 PCM IGN 1 FUSE 38 PNK WIRE POWERTRAIN CONTROL MODULE (IN ENGINE COMPT, ON LEFT INNER FENDER) PPL PRNDL INDICATOR RED/WHT WIRE SERIAL DATA TAN WIRE TAN/BLK WIRE TAN/WHT WIRE THROTTLE POSITION SENSOR (ON LEFT SIDE OF THROTTLE BODY) TOW/ HAUL SWITCH TOW/HAUL INDICATOR TOW/HAUL SWITCH UNDER- HOOD FUSE BLOCK VEHICLE SPEED SENSOR WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SOL 2-3 SOL 3-2 SOL A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE BLK WIRE BLU WIRE BRN WIRE DK BLU WIRE GRY WIRE HOT IN RUN, START IGN E FUSE 22 LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE ORG/ WIRE ORG/BLK WIRE PC SOL VALVE PNK WIRE PPL RED WIRE REV STOP LAMP SWITCH (ABOVE BRAKE PEDAL) TAN (OR WHT) WIRE TAN WIRE TAN/BLK WIRE TCC PWM SOL TCC SOL TFT SENSOR UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLU WIRE BODY CONTROL MODULE (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (BELOW LEFT FRONT SEAT) BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK DK DK GRN WIRE DK GRN/WHT WIRE DR TRN MIR FUSE 14 DRIVER'S OUTSIDE REAR VIEW MIRROR (LEFT TURN SIGNAL) DRL ON/OFF SIG FR PRK FUSE 22 FRONT TURN SIGNAL LAMP SUPPLY VOLTAGE GRN WIRE HAZARD SWITCH HEAD OFF HEADLAMP AND PANEL DIMMER SWITCH HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER LEFT LEFT TURN SIGNAL IND LOGIC LP PKR FUSE 18 LT BLU/WHT WIRE LT GRN/BLK WIRE NCA WIRE NOT USED PARK PARK LAMP RELAY PARK LAMP RLY CTRL HAZARD SW SIG DRL LOW CONTROL PARK LAMP SW ON SIG PASS TRN MIR FUSE 19 PASSENGER'S OUTSIDE REAR VIEW MIRROR (RIGHT TURN SIGNAL) PNK WIRE PROVISIONAL RED/WHT WIRE RIGHT RIGHT TURN SIGNAL IND SPLICE PACK TRAILER WIRING (BLUNT CUT) TRLR PRK FUSE 21 TURN SIGNAL SWITCH TURN SIGNAL/ MULTIFUNCTION SWITCH TURN SIGNAL/HAZARD FLASHER MODULE (BEHIND LEFT SIDE OF DASH) UPFTR PRK FUSE 16 WHT WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLU WIRE BODY CONTROL MODULE (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (BELOW LEFT FRONT SEAT) BODY FUSE BLOCK (BELOW LEFT FRONT SEAT) STOP/ CHMSL FUSE 8 BRN WIRE BRN/WHT WIRE CHMSL/ STOP LAMP SUPPLY VOLTAGE DK BLU WIRE DK BLU/WHT WIRE DK CRUISE CONTROL SYSTEM DK GRN WIRE DK GRN/WHT WIRE DK USED DR TRN MIR FUSE 14 DRIVER'S OUTSIDE REAR VIEW MIRROR (LEFT TURN SIGNAL) DRL ON/OFF SIG FR PRK FUSE 22 FRONT TURN SIGNAL LAMP SUPPLY VOLTAGE GRN WIRE HAZARD SWITCH HEAD OFF HEADLAMP AND PANEL DIMMER SWITCH HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER LEFT LEFT TAIL LAMP ASSEMBLY LEFT TURN SIGNAL IND LOGIC LICENSE LAMP LP PKR FUSE 18 LR STOP/ TURN FUSE 4 LT BLU WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE NCA WIRE NOT USED PARK PARK LAMP RELAY PARK LAMP RLY CTRL HAZARD SW SIG DRL LOW CONTROL PARK LAMP SW ON SIG PASS TRN MIR FUSE 19 PASSENGER'S OUTSIDE REAR VIEW MIRROR (RIGHT TURN SIGNAL) PNK WIRE PROVISIONAL RED/WHT WIRE RIGHT RIGHT TAIL LAMP ASSEMBLY CENTER HIGH MOUNTED STOP LAMP RIGHT TURN SIGNAL IND RR STOP/ TURN FUSE 6 SPLICE PACK TAIL/ STOP/ TURN SIGNAL LAMP TRAILER WIRING (BLUNT CUT) TRLR PRK FUSE 21 TURN SIGNAL SWITCH TURN SIGNAL/ MULTIFUNCTION SWITCH TURN SIGNAL/HAZARD FLASHER MODULE (BEHIND LEFT SIDE OF DASH) UPFTR PRK FUSE 16 WHT WIRE YEL WIRE YEL/BLK WIRE

000000 TRIP ABS IND. ABS SYSTEM AIR BAG IND BACKLIGHTS LAMPS CTRL BATTERY IND BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (LOWER RIGHT SIDE OF DASH) BRAKE IND BRAKE WARNING IND CONTROL BATT VOLTAGE GROUND GROUND IGN VOLTAGE SERIAL DATA BRN/WHT WIRE CHECK GAGES IND. CLASS 2 (BCM) CLASS 2 (EBCM) CLASS 2 (PCM) CLASS 2 (SDM) CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM CRUISE IND DK BLU/WHT WIRE DK GRN WIRE DRL IND FUEL GAUGE GROUND GRY WIRE HIGH BEAM IND HOT AT ALL TIMES HOT IN RUN OR START IGN IGN CLASS 2 (PCM) IGN CLASS 2 (PCM) IGN CLASS 2 (PCM) IGN CLASS 2 (PCM) IGN VOLT SIG IGN E FUSE 22 ILLUMINATION (6 BULBS) INSTRUMENT PANEL CLUSTER IPC FUSE 31 LCD DISPLAY LEFT TURN IND LH FRT TURN SIG SUP VOLT LOW FUEL IND LT BLU/WHT WIRE MALFUNCTION IND LAMP MIL CTRL MIL SIGNAL OIL PRESSURE GAUGE OIL PRESSURE IND P R N D 3 2 1 PNK WIRE POWERTRAIN CONTROL MODULE (IN ENGINE COMPT, ATTACHED TO LEFT FRONT FENDER) PPL CLASS 2 SERIAL DATA RED/WHT WIRE RH FRT TURN SIG SUP VOLT RIGHT TURN IND SEAT BELT IND SECURITY IND SPEEDOMETER TACHOMETER TAN/WHT WIRE TOW/HAUL IND TRIP RESET SWITCH TRIP RESET SWN SIGNAL GROUND UNDERHOOD FUSE BLOCK (IN ENGINE COMPT, ATTACHED TO LEFT FRONT FENDER) VOLTMETER YEL WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) CHIME MODULE (IN CENTER OF DASH, ATTACHED TO RADIO CONNECTOR) DATA LINK CONNECTOR (DLC) (PARTIAL) (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK BLU/WHT WIRE GRN WIRE GROUND BATTERY GRY WIRE HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES IGNITION KEY ALARM SWITCH (INSIDE TOP OF STEERING COLUMN) INSTRUMENT PANEL CLUSTER (IPC) KEY IN SWITCH SIGNAL PARK BRAKE SW SIGNAL HEADLAMPS ON SIGNAL LEFT TURN SIGNAL LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE OPTIONAL ORG/ WIRE PARK BRAKE SWITCH (UNDER LEFT SIDE OF DASH) PPL RADIO RADIO BAT FUSE 1 RED WIRE RED/WHT WIRE RIGHT TURN SIGNAL RIGHT TURN SIGNAL LEFT TURN SIGNAL SERIAL DATA BRAKE WARN IND CTRL SERIAL DATA TAN WIRE TAN/WHT WIRE TURN SIGNAL/HAZARD FLASHER MODULE (BEHIND LEFT CENTER OF DASH) UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPARTMENT) W/O PREMIUM OUTSIDE ELECTRIC MIRRORS W/PREMIUM OUTSIDE ELECTRIC MIRRORS W/O RADIO WHT WIRE

1-2 SOL 14 15 16 17 18 19 20 21 PPL 16 17 18 19 20 21 22 23 PPL 2-3 SOL 24 25 26 PNK WIRE 3-2 SOL A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE BLK WIRE BLU WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR (TOP REAR OF ENGINE) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE OIL PRESSURE (EOP) SENSOR (TOP REAR OF ENGINE) EXHAUST GAS RECIRCULATION VALVE (6.0L) (ON RIGHT FRONT OF ENGINE) FUEL TANK PRESSURE SENSOR (IN FUEL TANK) GRY DK GRN WIRE GRY WIRE HOT IN RUN, START IGN E FUSE 22 LT BLU WIRE LT BLU/WHT WIRE LT GRN GRY WIRE LT GRN WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP REAR OF ENGINE) ORG/ WIRE ORG/BLK WIRE PC SOL VALVE PNK WIRE PNK/BLK WIRE PPL PPL 9 10 11 12 13 PPL PNK PNK WIRE PPL/WHT WIRE RED WIRE REV STOP LAMP SWITCH (ABOVE BRAKE PEDAL) TAN (OR WHT) WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC PWM SOL TCC SOL TFT SENSOR UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE

16 17 18 19 20 21 22 23 PPL 24 25 26 27 28 29 30 31 PPL 24 25 26 PNK WIRE 32 33 34 PNK WIRE 8 9 PNK WIRE AUTOMATIC TRANSMISSION INPUT SHAFT SPEED SENSOR BLK/WHT WIRE BRN WIRE CAN VENT FUSE 34 DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES IGN LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE ORG/ WIRE ORG/BLK WIRE PNK 6 7 WIRE PNK WIRE PPL PPL PNK PNK WIRE PPL/WHT WIRE RED WIRE RED/WHT WIRE SIGNAL TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK VEHICLE SPEED SENSOR WHT WIRE YEL WIRE YEL/BLK WIRE

24 25 26 27 28 29 30 31 PPL 32 33 34 PNK WIRE 8 9 PNK WIRE A/C REQUEST A/C SYSTEM ANTI-LOCK BRAKES SYSTEM CRUISE CONTROL SYSTEM BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CRANK FUSE 27 CRUISE CONTROL SYSTEM CRUISE ENGAGED CRUISE INHIBIT CTRL DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENG 1 FUSE 23 EVAP CANP CTRL EVAP VENT CTRL MIL CTRL 2-3 SS CTRL 1-2 SS CTRL VSS VSS TFT SENS SIG GEN CYCLE SIG IAC COIL B HI IAC COIL B LOW IAC COIL A LOW IAC COIL A HI GEN IND. GRY WIRE HOT IN RUN, START HOT IN START IC 8 CTRL IC 2 CTRL IC 5 CTRL IC 3 CTRL IDLE AIR CONTROL VALVE (ON LEFT SIDE OF THROTTLE BODY) IGN IGN FEED GND EGR CTRL (6.0L) TCC SOL CTRL CLU RLY CTRL IGNITION COILS INSTRUMENT PANEL CLUSTER LOGIC LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MAF SIG MAP SIG MALFUNCTION INDICATOR LAMP NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PC SOL HI CTRL EGR HI CTRL PC SOL LO CTRL PMP RLY CTRL PCM IGN 1 FUSE 38 PNK 6 7 WIRE PNK WIRE POWERTRAIN CONTROL MODULE (IN ENGINE COMPT, ON LEFT INNER FENDER) PPL PPL FUEL LEV SIG A/C LOW PRESS PPL PNK PNK WIRE PPL/WHT WIRE RED WIRE REF LO SPARK PLUG STARTING/ CHARGING SYSTEM STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK WIRE