Chevrolet Chevy Express H1500 (2003-2012) breakout) Wiring diagrams

4.3L A/C CMPRSR RELAY 74 (MANUAL A/C) BANK 1 SENSOR 1 BANK 1 SENSOR 2 BANK 2 SENSOR 1 BANK 2 SENSOR 2 BREAKOUT) CENTRAL SEQUENTIAL FUEL INJECTION (CENTRAL SFI) (4.3L) CRNK RELAY 73 DRL PCB RELAY ECM PWR/TRN FUSE 50 EVAPORATIVE EMISSION (EVAP) CANISTER PURGE SOLENOID VALVE EVEN IGN INJ FUSE 52 (EXCEPT 4.3L) EXCEPT 4.3L EXCEPT 4.3L 4.3L FROM TRLR WRG FUSE (DIAGRAM 1 OF 4) FUEL FUEL INJECTOR INJECTOR FUEL INJECTOR FUEL PUMP RELAY 72 FUSE 46 FUSE 56 HEATED OXYGEN SENSOR HI WPR RELAY 70 HIGH BEAM PCB RELAY HORN PCB RELAY IGNITION COIL IGNITION IGNITION COIL COIL IGNITION IGNITION IGNITION IGNITION COIL COIL COIL COIL INJ FUSE 59 LO BEAM PCB RELAY MAF/CNSTR VENT FUSE 49 MEGA FUSE 77 NCA WIRE ODD IGN INJ FUSE 55 PNK WIRE PWR/TRN RELAY 76 RED/BLK WIRE STOP LAMPS PCB RELAY (CUTAWAY) TO BODY FUSE BLOCK (DIAGRAM 4 OF 4) TO RUN/CRNK RELAY 69 (DIAGRAM 3 OF 4) TRAILER LH STOP/TURN PCB RELAY (W/ TRUCK TRAILER) TRAILER RH STOP/TURN PCB RELAY (W/ TRUCK TRAILER) WASHER PCB RELAY WPR FUSE 39 WPR RELAY 7

4 SPEED A/T 6 SPEED A/T AUTOMATIC TRANSMISSION AUX STOP LAMP FUSE 68 BLK WIRE BLK/WHT WIRE BREAKOUT TOWARDS INSTRUMENT PANEL CLUSTER) BREAKOUT) BRK SW FUSE 13 BRN WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY CUTAWAY DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) EXCEPT 4.3L 4.3L HEAD PARK AUTO HEADLAMP, PANEL DIMMER HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY 15 ENERGIZED IGN INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 10 LEFT FRONT MARKER LAMP LEFT PARK/ TURN SIGNAL LAMP LEFT TURN IND LOGIC LT BLU WIRE LT BLU/WHT WIRE OFF PNK WIRE PROVISIONAL RIGHT RIGHT PARK/ FRONT TURN MARKER SIGNAL LAMP LAMP RIGHT TURN IND SER DATA STOP LAMP SWITCH (BEHIND LEFT SIDE OF DASH, ABOVE BRAKE PEDAL) STOP LAMPS PCB RELAY SWITCH TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE

4.3L 4.3L/5.3L 4.8L 6.0L 5.3L W/ HD TRUCK TRAILER W/O BACKUP ALARM 6.6L 6.6L 6.6L BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) BREAKOUT) CNG CONTROL MODULE CONNECTOR BREAKOUT) CONTROL SOLENOID VALVE ASSEMBLY COOLANT FUEL HEATER HEATER COOLANT HEATER FUEL PUMP ENGINE CONTROL MODULE (ECM) EXCEPT 5.3L W/ HD TRUCK TRAILER 4.8L, 6.OL, 4.3L W/O HD TRUCK TRAILER EXCEPT 5.3L W/ HD TRUCK TRAILER, BACKUP ALARM EXHAUST GAS RECIRCULATION (EGR) VALVE SHIELD FUEL FILTER PRESSURE SWITCH FUEL PRESSURE REGULATOR 1 SHIELD FUEL PRESSURE REGULATOR 2 SHIELD FUEL PUMP, SENDER ASSEMBLY GLOW PLUG CONTROL MODULE (GPCM) INTAKE (BLUNT AIR CUT) VALVE SHIELD SHIELD LPG CUT OFF FUEL SOLENOID PUMP VALVE NCA WIRE REDUCTANT PUMP REDUCTANT REDUCTANT LINE HEATER TANK HEATER REDUCTANT SENSOR MODULE SECONDARY PRIMARY LPG PUMP LPG PUMP ASSEMBLY ASSEMBLY TRAILER CONNECTOR W/ 3 TANK COMPLETE VEHICLE KIT, LPG W/ 4 TANK COMPLETE VEHICLE KIT W/ CARGO 6.6L, EXCEPT 5.3L W/ HD TRUCK TRAILER, BACKUP ALARM W/ DEDICATED CNG W/ FUEL FIRED 6.6L AUXILIARY HEATER W/O DEDICATED CNG WHT WIRE WHT/ BLK WIRE

19 CM FROM LEFT FRONT DOME FLUORESCENT WORK LAMP CONNECTOR) 30 CM FROM PASSENGER 42 CM FROM LEFT FRONT SIDE FRONT ACCESS PANEL ACTUATOR) AUXILIARY AIR TEMPERATURE ACTUATOR AUXILIARY BLOWER MOTOR BLK WIRE BLK/WHT WIRE BREAKOUT) CARGO DOOR LATCH CARGO DOOR LOCK SWITCH CENTER HIGH MOUNTED STOP LAMP (CHMSL) DOME LAMP ELECTRONIC BRAKE CONTROL MODULE (EBCM) FRONT CARGO FLUORESCENT WORK LAMP FUEL FILTER PRESSURE SWITCH LEFT LEFT REAR REAR WINDOW WINDOW DEFOGGER DEFOGGER GRID GRID LEFT REAR SIDE FRONT ACCESS PANEL ACTUATOR LEFT REAR SIDE REAR ACCESS PANEL ACTUATOR W/ AUXILIARY HEATER W/O REAR A/C LEFT TAIL/STOP LEFT BACKUP TURN SIGNAL LAMP LAMP LICENSE LAMP MIDDLE DOME/ READING LAMPS NCA WIRE REAR AUXILIARY HVAC CONTROL ASSEMBLY REAR CARGO FLUORESCENT WORK LAMP REAR DOME READING LAMPS RIGHT ACCESS PANEL FLUORESCENT WORK LAMP RIGHT BACKUP LAMP RIGHT PARK/TURN SIGNAL LAMP RIGHT REAR WINDOW DEFOGGER GRID RIGHT SIDE FRONT ACCESS PANEL ACTUATOR RIGHT TAIL/STOP, TURN SIGNAL LAMP SWING OUT REAR DOOR WINDOW STATIONARY REAR DOOR WINDOW W/ AUXILIARY HEATER, REAR A/C W/ AUXILIARY HEATER, REAR A/C, REAR WINDOW DEFOGGER W/ CARGO LAMPS W/ ELECTRIC SIDE DOOR LOCK CONTROL W/ REAR A/C W/ REAR A/C, SWB W/ REAR WINDOW DEFOGGER W/O ACTIVE BRAKE CONTROL W/ ACTIVE BRAKE CONTROL W/O AUXILIARY HEATER, REAR A/C W/O ELECTRIC SIDE DOOR LOCK CONTROL W/O REAR WINDOW DEFOGGER WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 LH AUDIO SIG (+) RH AUDIO SIG (+) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 B+ LF MID OUT (+) RF MID OUT (+) 1959 1955 LR MID OUT (-) RR MID OUT (-) 2 1 8 LO REF 658 1782 VOICE SIG DRAIN WIRE HI SPD GMLAN ANTENNA IN BATT POSITIVE VOLT BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BREAKOUT) BRN/WHT WIRE CELLULAR, DIGITAL RADIO ANTENNA CELLULAR/ NAVIGATION ANTENNA COAX COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CUTAWAY UPFITTER DIGITAL RADIO RECEIVER (LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GRY WIRE HOT AT ALL TIMES INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (AT TOP OF STEERING COLUMN) INFO LED DIMMING CTRL GND LF MID OUT (-) RF MID OUT (-) LEFT CARGO DOOR SPEAKER (IF EQUIPPED) LEFT FRONT SPEAKER LEFT REAR SPEAKER LH AUDIO SIG + RH AUDIO SIG + LO GMLAN SERIAL DATA LO REF LO SERIAL DATA LR MID OUT (+) RR MID OUT (+) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MUTE NCA WIRE ORG/ WIRE PASSENGER/ CARGO PNK WIRE RADIO RADIO ANTENNA RDO/ CHIME FUSE 20 RED/WHT WIRE RIGHT CARGO DOOR SPEAKER (IF EQUIPPED) RIGHT FRONT SPEAKER RIGHT REAR SPEAKER RIGHT STEERING WHEEL CONTROL SWITCH SEEK DOWN SEEK UP SOURCE STEERING WHEEL CTRL TAN WIRE TAN/BLK WIRE TAN/WHT WIRE USB CABLE USB CHARGE USB RECEPTACLE VEHICLE COMMUNICATION INTERFACE MODULE (VICM) (BELOW STEERING COLUMN) VOICE SIG VOL DOWN VOL UP W/ VEHICLE COMMUNICATION SYSTEM W/O VEHICLE COMMUNICATION SYSTEM WHT WIRE YEL WIRE

4.3L A/C CMPRSR RELAY 74 (MANUAL A/C) BANK 1 BANK 2 SENSOR 1 SENSOR 1 BANK 2 BANK 1 SENSOR 2 SENSOR 2 BREAKOUT) CENTRAL SEQUENTIAL FUEL INJECTION (CENTRAL SFI) (4.3L) CRNK RELAY 73 DRL PCB RELAY ECM PWR/TRN FUSE 50 ENGINE CONTROL MODULE (ECM) EVAPORATIVE EMISSION (EVAP) CANISTER PURGE SOLENOID VALVE EVEN IGN INJ FUSE 52 (EXCEPT 4.3L) EXCEPT 4.3L EXCEPT 4.3L 4.3L FROM TRLR WRG FUSE (DIAGRAM 1 OF 4) FUEL FUEL IGNITION INJECTOR INJECTOR COIL FUEL FUEL INJECTOR INJECTOR FUEL INJECTOR FUEL PUMP RELAY 72 FUSE 46 FUSE 56 HEATED HEATED OXYGEN OXYGEN SENSOR SENSOR HI WPR RELAY 70 HIGH BEAM PCB RELAY HORN PCB RELAY IGNITION COIL IGNITION CONTROL MODULE (ICM) IGNITION IGNITION COIL COIL IGNITION IGNITION IGNITION COIL COIL COIL INJ FUSE 59 LOW BEAM PCB RELAY MAF/CNSTR VENT FUSE 49 MASS AIR FLOW (MAF)/ INTAKE AIR TEMPERATURE (IAT) SENSOR MEGA FUSE 77 NCA WIRE ODD IGN INJ FUSE 55 PNK WIRE PWR/TRN RELAY 76 RED/BLK WIRE STOP LAMPS PCB RELAY (CUTAWAY) TO BODY FUSE BLOCK (DIAGRAM 4 OF 4) TO RUN/CRNK RELAY 69 (DIAGRAM 3 OF 4) TRAILER LH STOP/TURN PCB RELAY (W/ TRUCK TRAILER) TRAILER RH STOP/TURN PCB RELAY (W/ TRUCK TRAILER) WASHER PCB RELAY WPR FUSE 39 WPR RELAY 71 YEL WIRE

4.3L 4.8L, 5.3L, 4.3L 6.0L 4.8L, 5.3L, 6.0L 4.8L, 5.3L, 6.6L 6.0L A/C CMPRSR RELAY 40 (MANUAL A/C) BANK 1 SENSOR 1 BANK 2 BANK 1 SENSOR 2 SENSOR 2 BANK 2 SENSOR 1 BLK WIRE BREAKOUT) CENTRAL SEQUENTIAL FUEL INJECTION (CENTRAL SFI) (4.3L) CRNK RELAY 39 CUTAWAY DRL PCB ECM MAF/CNSTR PWR/TRN VENT FUSE 64 FUSE 78 ENGINE CONTROL MODULE (ECM) ENGINE COOLING FAN (6.6L) EVEN IGN/ FUEL INJ INJ FUSE 79 FUSE 75 (DIAGRAM 2 OF 5) FAN CLTCH (EV) FUSE 63 (6.6L) ECM PWR/TRN FAN CLTCH (EV) RELAY 50 (6.6L) FUSE 45 FROM TRLR WRG FUSE 42 (DIAGRAM 1 OF 5) FUEL FUEL FUEL FUEL INJECTOR INJECTOR INJECTOR INJECTOR FUEL FUEL INJECTOR INJECTOR FUEL HEATER (6.6L) FUEL HTR FUSE 71 FUEL INJECTOR FUEL INJECTOR FUEL FUEL INJECTOR INJECTOR FUEL PUMP RELAY 38 HEATED HEATED OXYGEN OXYGEN SENSOR SENSOR HEATED OXYGEN SENSOR HI BEAM HORN/WASH PCB IGNITION IGNITION IGNITION IGNITION COIL 2 COIL 4 COIL 6 COIL 8 IGNITION IGNITION IGNITION IGNITION COIL 3 COIL 1 COIL 5 COIL 7 INJ FUSE 75 LO BEAM LPG FUEL VEHICLE, 3 TANK VEHICLE KIT LPG FUEL VEHICLE, 4 TANK VEHICLE KIT MEGA FUSE NCA WIRE ODD IGN/ INJ FUSE 65 (EXCEPT 6.6L) PNK (OR RED) WIRE PNK WIRE PNK/BLK WIRE PWR/TRN RELAY 49 RED WIRE RED/BLK WIRE REDUCTANT HEATED SENSOR OXYGEN MODULE SENSOR STOP LAMPS TO BODY FUSE BLOCK (DIAGRAM 4 OF 5) TO EVEN IGN/INJ FUSE 79 (DIAGRAM 2 OF 5) TO FUSE HOLDER (DIAGRAM 5 OF 5) TO RUN/CRNK RELAY 15 (DIAGRAM 3 OF 5) TRLR LT STOP/TRN TRLR RT STOP/TRN W/ CUTAWAY W/ TRUCK TRAILER WPR FUSE 55 WPR PCB WPR-HI PCB YEL WIRE

AIR BAG/AOS FUSE 10 AIR TEMPERATURE HVAC VACUUM ACTUATOR CONTROL PUMP (6.6L) ASSEMBLY AUXILIARY AIR TEMPERATURE ACTUATOR (W/ REAR A/C) AUXILIARY AUXILIARY MODE BLOWER ACTUATOR MOTOR HIGH SPEED (W/ REAR RELAY A/C) AUXILIARY BLOWER MOTOR LOW SPEED RELAY AUXILIARY BLOWER MOTOR MEDIUM SPEED RELAY AUXILIARY HVAC CONTROL MODULE BCK/UP LAMP PCB BLK WIRE BLUNT CUT) BODY CONTROL MODULE (BCM) BREAKOUT) BRN WIRE CARGO DR UNLCK PCB CMPS FUSE 19 DIGITAL RADIO RECEIVER RADIO DK GRN WIRE DRIVER SEAT ADJUSTER SWITCH (W/ DRIVER POWER SEAT ADJUSTER) DRIVER WINDOW SWITCH PASSENGER (IF WINDOW EQUIPPED) SWITCH (IF EQUIPPED) DRVR DR UNLCK PCB ELECTRONIC COMPASS FRONT MODULE AUXILIARY (IF HVAC EQUIPPED) CONTROL ASSEMBLY EMPTY FUSE 37 EMPTY FUSE 38 FROM UNDERHOOD FUSE BLOCK (DIAGRAM 2 OF 5) FTR REAR DR LCK PCB FTR REAR PASS DR UNLCK PCB GRN WIRE HVAC 1 FUSE 14 HVAC 2 FUSE 13 HVAC IGN SW CNTRL FUSE 25 FUSE 22 I/P CLUSTER FUSE 23 INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INFLATABLE RESTRAINT VEHICLE ROLLOVER SENSOR (W/ LEFT, RIGHT ROOF SIDE) INSTRUMENT PANEL CLUSTER (IPC) (W/O ODOMETER SECURITY WIRING PROVISION (SEO)) MANUAL A/C W/ POWER MIRRORS, REAR WINDOW DEFOGGER ONSTAR FUSE 11 ORG/ WIRE OSRVM SW FUSE 9 OUTSIDE REARVIEW MIRROR SWITCH (IF EQUIPPED) PASSENGER SEAT ADJUSTER SWITCH (W/ PASSENGER POWER SEAT ADJUSTER) PRK LAMPS PWR SEATS CIRCUIT BREAKER 1 PWR WINDOWS CIRCUIT BREAKER 2 RADIO RAP RELAY RDO/CHIME FUSE 20 REAR BLWR FUSE 29 REAR DEFOG RED WIRE RED/ WHT WIRE RED/BLK WIRE RED/WHT WIRE RFA/TPM FUSE 21 RUN WIRE TO UPFTR UPFITTER AUX 1 FUSE 16 (W/ CUTAWAY, AMBULANCE, RV UPFITTERS) UPFTR CTSY LAMPS VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (IF EQUIPPED) W/ CHIME MODULE W/ COMMERCIAL TRADESMAN W/ CUTAWAY W/ ELECTRIC SIDE DOOR LOCK CONTROL W/ REAR A/C W/ REAR A/C, AUXILIARY HEATER W/ REAR A/C, AUXILIARY HEATER, PLUMBING, WIRING PROVISION W/ RV UPFITTER W/ RV UPFITTER, SWB PASSENGER W/O RV UPFITTER W/O CHIME MODULE W/O DIGITAL AUDIO W/ DIGITAL AUDIO WHT RED/ WIRE WHT WIRE YEL WIRE

1-2 SHIFT SOLENOID (SS) VALVE 2-3 SHIFT SOLENOID (SS) VALVE 3 TANK COMPLETE VEHICLE KIT 4 TANK COMPLETE VEHICLE KIT 6.6L 4.8L, 5.3L, 6.0L 4.3L AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION INPUT SHAFT SPEED (ISS) SENSOR BLK WIRE BREAKOUT) CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE ECM IGN/ GLOW PLUG MDL IGN FUSE 30 ENGINE CONTROL MODULE (ECM) ENGINE GLOW PLUG CONTROL CONTROL MODULE MODULE (GPCM) (ECM) EVAPORATIVE EMISSION PURGE SOLENOID VALVE RELAY EVAPORATIVE EMISSION VENT SOLENOID VALVE RELAY FROM BODY CONTROL MODULE (BCM) (DIAGRAM 3 OF 5) FROM FSCM IGN FUSE 6 (DIAGRAM 3 OF 5) FROM UNDERHOOD FUSE BLOCK (DIAGRAM 2 OF 5) FUSE HOLDER FUSE HOLDER LPCM FUSE GLOW PLUG CONTROL MODULE (GPCM) LPCM FUSE LPG CONTROL MODULE LPG TANK SCAVANGE PUMP ORG/ WIRE PETROLEUM, GAS PNK WIRE PRIMARY FUEL PUMP, RED WIRE SECONDARY TRANSMISSION FUEL CONTROL PUMP MODULE (TCM) TCM IGN FUSE 31 TORQUE CONVERTER CLUTCH (TCC) PULSE WIDTH MODULATION (PWM) SOLENOID VALVE TORQUE CONVERTER CLUTCH (TCC) SOLENOID VALVE TRANS FUSE 17 TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) VACUUM PUMP W/ 4 SPEED W/ 6 SPEED A/T WAIT TO LPG CONTROL INDICATOR RELAY MODULE

BLK WIRE BLK/WHT WIRE BREAKOUT) CARGO DOOR LATCH ASSEMBLY (W/ CARGO/PASSENGER) (IN RIGHT REAR CARGO DOOR) CARGO DOOR LOCK SWITCH CARGO/ PASSENGER CLASS 2 COMPUTER DATA LINES SYSTEM CUTAWAY DK BLU WIRE DK GRN WIRE DRIVER DOOR LATCH ASSEMBLY (AT REAR OF DRIVER DOOR) DRIVER DOOR LOCK SWITCH DRIVER INFORMATION CENTER (DIC) GRY WIRE GRY/BLK WIRE INSTRUMENT PANEL CLUSTER (IPC) LEFT SIDE DOOR CONTACT PLATE (AT LEFT "B" PILLAR) LOGIC LT BLU WIRE LT GRN WIRE ORG/BLK WIRE PASSENGER DOOR LATCH ASSEMBLY (AT REAR OF FRONT PASSENGER DOOR) PASSENGER DOOR LOCK SWITCH PNK/BLK WIRE RIGHT SIDE DOOR CONTACT PLATE (AT RIGHT "B" PILLAR) SECURITY INDICATOR TAN WIRE TAN/BLK WIRE TAN/WHT WIRE W/ HINGED DOOR W/ HINGED DOORS