Chevrolet Chevy Express H2500 (2003-2003) lt grn Wiring diagrams

1836 710 351 PASSLK SENS SERIAL DATA GROUND 39 343 PNK IGN 1 VOLT ACC VOLT WIRE B+ GROUND SENS RET SERIAL DATA BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BEHIND LOWER RIGHT SIDE OF DASH) DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DK SERIAL DATA ELECTRONIC BRAKE CONTROL MODULE (ON LEFT FRAME RAIL NEAR CENTER OF VEHICLE) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT ON ACC OR RUN HOT ON RUN OR START INSTRUMENT PANEL CLUSTER LT GRN WIRE LT SERIAL DATA ORG/WHT WIRE PASSLOCK SENSOR (INSIDE TOP OF STEERING COLUMN) PASSLOCK SIGNAL PNK WIRE POWERTRAIN CONTROL MODULE (ENGINE COMPT, ON LEFT INNER FENDER) PPL RED/WHT WIRE SECURITY INDICATOR SENSOR RETURN SERIAL DATA SPLICE TAN WIRE TBC ACC FUSE 46 TBC FUSE 19 TBC IGN 1 FUSE 24 UNDERHOOD FUSE BLOCK YEL WIRE

1491 1382 4040 1732 230 2240 INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM 2090 11 INTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM 705 1037 INTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM 710 301 COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS SYSTEM 812 1140 1969 1080 755 ANTI-THEFT SYSTEM ACCESS PANEL RELAY DOOR LOCKS SYSTEM 1 2 ACCY PANEL LEFT SIDE FRONT RLY CTRL 1 2 PASSENGER DOOR SW UNLOCK RLY CTRL ACCY PANEL LEFT SIDE RLY CTRL 1 2 DRIVER DOOR RELEASE RLY CTRL ACCY PANEL RIGHT SIDE RLY CTRL 1 2 CARGO DOOR RELEASE RLY CTRL ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM HEADLIGHTS SYSTEM HORNS SYSTEM BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BEHIND LOWER SIDE OF DASH) BRN/WHT WIRE CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA PARK LAMP SW ON SIG COMMERCIAL VEHICLE 1 2 NON-COMMERCIAL VEHICLE DIMMING INPUT HEADLAMP DIMMER SW SIG DK BLU WIRE DK GRN WIRE DOOR LOCKS SYSTEM DRL ON/OFF SW SIG GROUND GROUND SECURITY SYST SENS LOW REF HEADLAMP ON IND SUPPLY VOLT HORN RLY CTRL GRY WIRE HEADLAMP LOW BEAM RELAY CTRL HAZARD SW SIG HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM POWER TOPS SYSTEM HEADLIGHTS SYSTEM HOT AT ALL TIMES INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PASSENGER DOOR SW UNLOCK RLY CTRL PNK WIRE PNK/WHT WIRE PPL INTERIOR LAMP DEFEAT SW SIG PPL/WHT WIRE RED/WHT WIRE SECURITYN SYSTEM SENS SIG TAN WIRE TAN/WHT WIRE TBC 3 FUSE TBC 4 FUSE TBC FUSE TOW/HAUL SWITCH TRACTION CTRL SW SIG UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE

ACCESSORY VOLT DOOR OPEN SW SIG DOOR LOCK CTRL DIMMER RETURN BACKUP LAMP SUPPLY VOLT BATTERY BODY CONTROL MODULE (BEHIND LOWER SIDE OF DASH) COURTESY LAMP HIGH CTRL COURTESY LAMP SUPPLY VOLT COURTESY LAMPS ON SIG DOOR LOCK CTRL DK BLU/WHT WIRE FUSE GRY/BLK WIRE HEADLAMP SW HEADLAMP ON SIG HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN ACC, RUN HOT IN ACC, RUN, START HOT IN RUN, START IGN 0 FUSE LT BLU WIRE LT GRN WIRE PARK BRAKE SW SIG PARK BRAKE SWITCH (UNDER LEFT SIDE OF DASH) PNK PNK WIRE PNK WIRE RECREATIONAL VEHICLE W/O RECREATIONAL VEHICLE RED/WHT WIRE TAN WIRE TBC 2 FUSE TBC ACC FUSE UNDERHOOD FUSE BLOCK WARNINGS SYSTEM HEADLIGHTS SYSTEM WHT WIRE YEL WIRE YEL/BLK WIRE

A/C COMPRESSOR CLUTCH A/C FUSE 32 A/C HIGH PRESSURE SWITCH (REAR OF A/C A/C LOW PRESSURE SWITCH (ON SIDE OF A/C RELAY 54 ACCUMULATOR) BLK WIRE BODY FUSE BLOCK (BELOW LEFT FRONT SEAT) BRN WIRE CLUTCH RLY CTRL COMPRESSOR) DEF HEAT/DEF DK GRN WIRE DK GRN/WHT WIRE HEAT VENT BI-LEV HOT AT ALL TIMES HOT IN RUN HVAC FUSE 10 HOT IN RUN OR START HVAC CONTROL ASSEMBLY IGN E FUSE 22 LOW PRESS SIG LT GRN WIRE OFF MAX NORM POWERTRAIN CONTROL MODULE (PCM) (ON LEFT FRONT INNER FENDER) REQUEST SIG UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT)

BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER SIDE OF DASH) CHIME MODULE CIGAR FUSE DATA CLSS 2 DATA LINK CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE GRY WIRE HOT AT ALL TIMES INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER LEFT FRONT SEAT) INSTRUMENT PANEL CLUSTER LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK DATA CLSS 2 WIRE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (PCM) (IN ENG COMPT, ON LEFT INNER FENDER) PPL RADIO REMOTE CONTROL DOOR LOCK RECEIVER (UPPER LEFT CENTER OF DASH) SPLICE UNDERHOD PASS- THROUGH GROMMET BREAKOUT) UNDERHOOD FUSE BLOCK VEHICLE COMMUNICATIONS INTERFACE MODULE (VCIM) (BELOW STEERING COLUMN) W/O RADIO WHT WIRE YEL WIRE

A/C HIGH PRESSURE SWITCH AUXILIARY AIR TEMPERATURE ACTUATOR AUXILIARY MODE ACTUATOR (LEFT REAR OF PASSENGER COMPT) BLK WIRE BLOW FUSE 51 BLOWER MOTOR (RIGHT REAR OF ENGINE COMPT) BLOWER MOTOR RESISTOR ASSEMBLY (RIGHT REAR OF ENGINE COMPT) BODY FUSE BLOCK (BELOW LEFT FRONT SEAT) BRN WIRE BRN/WHT WIRE DEFOGGER SYSTEM DK BLU WIRE DK GRN/WHT WIRE FRONT AUXILIARY HVAC CONTROL ASSEMBLY (IF EQUIPPED) GRY WIRE HOT AT ALL TIMES HOT IN HVAC 1 FUSE 9 HVAC CONTROL ASSEMBLY HVAC FUSE 10 LOGIC LT BLU WIRE LT GRN WIRE MED OFF OFF MAX NORM BI-LEV ORG/ WIRE PPL R DEFOG IND GROUND ING 3 BATTERY RED WIRE RED/BLK WIRE RED/WHT WIRE RR BLOWER FUSE 13 RUN WIRE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VENT HEAT HEAT/DEF DEF VENT HEAT HEAT/DEF DEF OFF MAX NORM BI-LEV WHT WIRE YEL WIRE

A/C HIGH PRESSURE SWITCH AUXILIARY HVAC CONTROL PROCESSOR (BEHIND AUXILIARY HVAC ASSEMBLY, IN HEADLINER) BLK WIRE BLOW FUSE 51 BLOWER MOTOR (RIGHT REAR OF ENGINE COMPT) BLOWER MOTOR RESISTOR ASSEMBLY (RIGHT REAR OF ENGINE COMPT) BODY FUSE BLOCK (BELOW LEFT FRONT SEAT) BREAKOUT) BREAKOUT) (W/O RV UPFITTER OPTION: IN FRONT HEADLINER HARN, BRN WIRE BRN/WHT WIRE DEFOGGER SYSTEM DK BLU WIRE DK GRN/WHT WIRE EXCEPT RV FRONT AUXILIARY HVAC CONTROL ASSEMBLY GRY WIRE HOT AT ALL TIMES HOT IN HVAC 1 FUSE 9 HVAC CONTROL ASSEMBLY HVAC FUSE 10 LOGIC LT BLU WIRE LT GRN WIRE MED OFF OFF LO MED HI OFF MAX NORM BI-LEV ORG/ WIRE PNK/BLK WIRE PPL PPL/WHT WIRE R DEFOG IND GROUND ING 3 BATTERY REAR REAR AUXILIARY HVAC CONTROL ASSEMBLY RED WIRE RED/BLK WIRE RED/WHT WIRE RR BLOWER FUSE 13 RUN WIRE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VENT HEAT HEAT/DEF DEF VENT HEAT HEAT/DEF DEF OFF MAX NORM BI-LEV WHT WIRE YEL WIRE

+5V (6.0L) 1744 846 INJ 1 CTRL INJ 6 CTRL 2755 1551 1670 1666 1551 1668 1665 1174 REF LOW GND 2759 1551 1671 1667 1551 1669 1664 REF LOW GND 2762 469 1456 REF LOW REF LOW EGR (6.0L) 440 1049 710 2752 632 B+ CLS 2 DATA CLS 2 DATA REF LOW REF LOW 625 1551 719 RLY CTRL GND LOW REF 687 2761 3-2 SS CTRL REF LOW 771 420 776 PRND A SIG BRK SW SIG PRND P SIG PPL 772 633 410 1020 845 PRND B SIG CMP SIG ECT SIG IGN INJ 5 CTRL INJ 8 CTRL BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BEHIND LOWER RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENG 1 FUSE 23 ENG 2 FUSE 21 FROM UNERHOOD PASS- THROUGH GROMMET BREAKOUT) FUSE 39 FUSE 40 GRY WIRE HOT AT ALL TIMES HOT IN ACCY, RUN, START HOT IN RUN, START IGN 0 FUSE 6 INJ 7 CTRL INJ 4 CTRL INJECTORS KS 1 SIGNAL KS 2 SIGNAL CKP 1 SIG LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE OIL LEV SW SIG ORG/ WIRE ORG/BLK WIRE PCM BATT FUSE 2 PNK 1 2 3 4 5 WIRE PNK PNK 6 7 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (IN ENGINE COMPT, ON LEFT INNER FENDER) PPL PPL PPL PPL/WHT WIRE RANGE B RANGE C IGN B+ REF LOW RED/WHT WIRE STARTING/ CHARGING SYSTEM TAN WIRE TAN/WHT WIRE UNDER- HOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/BLK 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