Chevrolet Express G1500 (2013-2013) nca Wiring diagrams

4.3L 4.3L/ 5.3L 4.8L 6.0L 4.8L, 5.3L, 6.0L 5.3L W/ HD TRUCK TRAILER W/O BACKUP ALARM 6.6L 6.6L BLK WIRE BLK/WHT WIRE BODY INTAKE (BLUNT CONTROL AIR CUT) MODULE VALVE SHIELD (BCM) SHIELD BREAKOUT) CONNECTOR BREAKOUT) COOLANT FUEL HEATER HEATER COOLANT HEATER FUEL PUMP CUT OFF FUEL SOLENOID PUMP VALVE 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 COMPO- SITION SENSOR FUEL FILTER PRESSURE SWITCH FUEL PRESSURE REGULATOR 1 SHIELD FUEL PRESSURE REGULATOR 2 SHIELD FUEL PUMP, FUEL LEVEL SENSOR ASSEMBLY GLOW PLUG CONTROL MODULE (GPCM) NCA WIRE REDUCTANT LINE HEATER REDUCTANT PUMP REDUCTANT SENSOR MODULE REDUCTANT TANK HEATER 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

AIR TEMPERATURE DOOR ACTUATOR BCK/UP LAMP PCB BLK WIRE BLK/ WHT WIRE BLK/WHT WIRE CARGO DOOR UNLOCK RELAY CENTER CONSOLE ACCESSORY POWER RECEPTACLE 2 CONNECTOR CONTENT THEFT DETERRENT MODULE COURTESY LAMPS PROVISION RELAY DATA LINK CONNECTOR (DLC) DOOR UNLOCK RELAY DRIVER DOOR DOOR LOCK UNLATCH RELAY RELAY DRIVER INFORMATION CENTER (DIC) SWITCH HEADLAMP, PANEL DIMMER SWITCH HEAVY DUTY HORN SWITCH HVAC CONTROL SWITCH ASSEMBLY IGNITION POWER PROVISION RELAY INFLATABLE RESTRAINT FRONT PASSENGER PRESENCE SYSTEM (PPS) SENSOR INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INSIDE COMPASS REARVIEW MODULE MIRROR INSTRUMENT PANEL CLUSTER (IPC) LEFT STEERING WHEEL CONTROLS SWITCH LIGHT DUTY NCA WIRE PASSENGER AIR BAG DISABLE INDICATOR PASSENGER AIR BAG DISABLE SWITCH PASSENGER COMPARTMENT FUSE BLOCK RADIO REAR PARKING ASSIST CONTROL MODULE REARVIEW CAMERA REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) RIGHT STEERING WHEEL CONTROLS SWITCH ROLLOVER SENSOR RUN WIRE RV UPFITTER SHIFT LOCK CONTROL SOLENOID ACTUATOR STEERING WHEEL AIR BAG COIL STEERING WHEEL SPEED/ POSITION SENSOR TOW/ BODY CONTROL HAUL MODULE (BCM) SWITCH TOWARDS INSTRUMENT CLUSTER PANEL) TURN SIGNAL/ MULTI-FUNCTION SWITCH W/ AUTOMATIC ELECTRONIC CRUISE CONTROL W/ REAR WINDOW DEFOGGER, POWER MIRRORS W/ REDUNDANT RADIO STEERING WHEEL CONTROL W/ REMOTE KEYLESS ENTRY, LOW TIRE PRESSURE INDICATOR W/ UYS W/O UYS 5 6 W/ VEHICLE COMMUNICATION SYSTEM W/O MANUAL SUPPRESSION SWITCH, RV UPFITTER W/O VEHICLE COMMUNICATION SYSTEM WHT WIRE WINDSHIELD WASHER FLUID PUMP WINDSHIELD WIPER MOTOR

AUXILIARY HVAC CONTROL MODULE BLK WIRE CUTAWAY UPFITTER DOME LAMP DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LOCK SWITCH DRIVER OUTSIDE REARVIEW MIRROR DRIVER WINDOW SWITCH FRONT AUXILIARY HVAC CONTROL ASSEMBLY FRONT DOME/ READING LAMPS NCA WIRE OUTSIDE REARVIEW MIRROR SWITCH PASSENGER DOOR LATCH ASSEMBLY PASSENGER DOOR LOCK SWITCH PASSENGER WINDOW PASSENGER OUTSIDE SWITCH REARVIEW MIRROR REAR AUXILIARY HVAC CONTROL ASSEMBLY RIGHT LEFT SUNSHADE SUNSHADE RIGHT LEFT VANITY VANITY MIRROR MIRROR LAMP LAMP RV UPFITTER RV UPFITTER (NOT USED) SPLICE BLOCK W/ ELECTRIC SIDE DOOR LOCK CONTROL W/ POWER MIRRORS, WINDOWS W/ REAR A/C W/O RV UPFITTER W/ REAR A/C, RV UPFITTER W/ REAR A/C, RV UPFITTER, SWB PASSENGER W/O ELECTRIC SIDE DOOR LOCK CONTROL W/O POWER MIRRORS, WINDOWS W/O REAR A/C, FRONT VANITY MIRROR W/ CUTAWAY UPFITTER

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) CENTER HIGH MOUNTED STOP LAMP (CHMSL) DOME LAMP ELECTRONIC BRAKE CONTROL MODULE (EBCM) FRONT CARGO FLUORESCENT WORK LAMP FUEL FILTER PRESSURE SWITCH LEFT FRONT REAR CARGO ACCESS PANEL FLUORESCENT FLUORESCENT WORK LAMP WORK LAMP LEFT LEFT REAR REAR DEFOGGER DEFOGGER GRID GRID LEFT REAR ACCESS PANEL FLUORESCENT WORK LAMP 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 PLATE LAMP MIDDLE DOME/ READING LAMPS NCA WIRE REAR AUXILIARY HVAC CONTROL ASSEMBLY REAR CARGO DOOR LATCH ASSEMBLY REAR CARGO DOOR LOCK SWITCH REAR DOME READING LAMPS RIGHT ACCESS PANEL FLUORESCENT WORK LAMP RIGHT BACKUP LAMP RIGHT PARK/TURN SIGNAL LAMP RIGHT REAR DEFOGGER GRID RIGHT SIDE FRONT ACCESS PANEL ACTUATOR RIGHT TAIL/STOP, TURN SIGNAL LAMP 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/ SWING OUT REAR DOOR WINDOW W/ STATIONARY REAR DOOR WINDOW 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

4 SPEED 6 SPEED A/T A/T 4.3L/ 5.3L 4.8L 6.0L 6.6L 6.6L 6.6L EXCEPT ABS MDL FUSE 2 ABS MTR FUSE 1 AMBULANCE UPFITTER) AUX PWR OUTLET FUSE 25 AUXILIARY BATTERY AUXILIARY GENERATOR BATTERY BCM 2 FUSE 58 BCM 1 FUSE 59 BCM 3 FUSE 26 BCM 7 FUSE 8 BCM 4 FUSE 9 BCM 5 FUSE 7 BCM 6 FUSE 72 BLK WIRE BLOWER MOTOR RESISTOR BODY CONTROL MODULE (BCM) BRN WIRE CENTER CONSOLE 2 ACCESSORY CENTER CONSOLE 1 ACCESSORY CIGAR LIGHTER RECEPTACLE CNSTR VENT SOL FUSE 56 CONTROL SOLENOID VALVE ASSEMBLY COOLANT HEATER (6.6L W/ AUXILIARY FUEL FIRED HEATER) DATA LINK CONNECTOR (DLC) ECM BATT FUSE 19 ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE CONTROL MODULE (ECM) EVAPORATIVE EMISSION (EVAP) VENT SOLENOID VALVE FCSM BATT FUSE 36 FOH MDL FUSE 35 FROM CMPS FUSE 19 (DIAGRAM 4 OF 5) FROM RUN FRT BLWR FUSE 74 FUEL PUMP CONTROL MODULE (5.3L) FUSIBLE LINK 1 FUSIBLE LINK 2 FUSIBLE LINK 3 FUSIBLE LINK 4 FUSIBLE LINK 5 (W/ DUAL GENERATOR GENERATOR GLOW PLUG CONTROL MODULE (GPCM) INSTRUMENT PANEL CLUSTER (IPC) (W/ ODOMETER SECURITY WIRING PROVISION (SEO)) INTAKE AIR HEATER (IAH) LTR/DLC FUSE 73 NCA WIRE PASSENGER COMPARTMENT FUSE BLOCK POWER RECEPTACLE POWER RECEPTACLE PROVISION IGNITION POWER PROVISION RELAY REAR PARKING ASSIST CONTROL MODULE RED WIRE RED/BLK WIRE RED/WHT WIRE RPA FUSE SEO TCM BATT FUSE 32 FUSE 27 STARTER MOTOR TO HEADLAMP HIGH BEAM RELAY (DIAGRAM 2 OF 5) TRAILER CONNECTOR TRANSMISSION CONTROL MODULE (TCM) AUTOMATIC TRANSMISSION ASSEMBLY TRLR WRG FUSE 11 TRLR WRG FUSE 42 UNDERHOOD JUNCTION BLOCK UPFITTER AUX 2 READING LAMPS FUSE 28 W/ ACTIVE BRAKE CONTROL W/ CIGAR LIGHTER W/ RV UPFITTER W/O RV UPFITTER W/ TRUCK TRAILER W/ W/ RV CUTAWAY UPFITTER UPFITTER W/O ACTIVE BRAKE CONTROL W/O CIGAR LIGHTER

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 COMPRESSOR 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 DRL PCB ECM PWR/TRN FUSE 78 ENGINE CONTROL MODULE (ECM) ENGINE COOLING FAN MOTOR (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 COOLING FUSE 45 FAN RELAY (6.6L) 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 PUMP RELAY 38 HEADLAMP HIGH BEAM RELAY HEATED HEATED OXYGEN OXYGEN SENSOR SENSOR HEATED OXYGEN SENSOR HORN WASH 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 LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY LOW BEAM LPG FUEL VEHICLE, 3 TANK VEHICLE KIT LPG FUEL VEHICLE, 4 TANK VEHICLE KIT MAF/CNSTR VENT FUSE 64 MASS AIR FLOW (MAF)/ INTAKE AIR TEMPERATURE (IAT) SENSOR MEGA FUSE NCA WIRE ODD IGN/ FLEX INJ FUSE 65 FUEL FUSE (EXCEPT 6.6L) PASSENGER COMPARTMENT FUSE BLOCK (DIAGRAM 4 OF 5) PNK (OR RED) WIRE PNK WIRE PNK/BLK WIRE PWR/TRN RELAY 49 RED WIRE RED/BLK WIRE REDUCTANT HEATED SENSOR OXYGEN MODULE SENSOR RIGHT TRAILER STOP/TURN SIGNAL LAMP RELAY (W/ TRUCK TRAILER) STOP LAMP PCB RELAY (CUTAWAY) 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) W/ CUTAWAY WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WPR FUSE 55 YEL WIRE

1-2 SHIFT SOLENOID (SS) VALVE 2-3 SHIFT SOLENOID (SS) VALVE 3 TANK COMPLETE VEHICLE KIT 4 TANK COMPLETE VEHICLE KIT 4 SPEED 6 SPEED A/T 6.6L 4.8L, 5.3L, 6.0L 4.3L AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION ASSEMBLY 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 SYSTEM LEAK DETECTION PUMP 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 10 FUSE HOLDER FUSE HOLDER LPCM FUSE GLOW PLUG CONTROL MODULE (GPCM) INDICATOR RELAY FUEL INJECTOR CONTROL MODULE INSIDE REARVIEW MIRROR ISRVM/ RVCM LPCM FUSE LPG BYPASS SOLENOID VALVE RELAY LPG CONTROL MODULE NCA WIRE ORG/ WIRE PETROLEUM, GAS PNK WIRE PRIMARY LPG TANK FUEL SCAVANGE PUMP RELAY PUMP RELAY REARVIEW CAMERA RED WIRE SECONDARY FUEL PUMP RELAY TCM IGN FUSE 31 TORQUE CONVERTER CLUTCH (TCC) ENABLE SOLENOID VALVE TORQUE CONVERTER CLUTCH (TCC) PRESSURE ASSEMBLY CONTROL SOLENOID VALVE TRANS FUSE 17 TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION INPUT SHAFT SPEED (ISS) SENSOR UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) W/ 6 SPEED A/T WAIT TO

1 2 3 4 B+ SERIAL DATA COMPUTER DATA LINES SYSTEM 8 9 2500 2501 SERIAL DATA BUS + SERIAL DATA BUS - BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) CARGO DOOR UNLOCK RELAY CARGO DR UNLCK FUSE 33 CHIME MODULE (BEHIND LEFT CENTER OF DASH) COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DOOR LOCK RELAY DOOR UNLOCK RELAY DRIVER DOOR UNLATCH RELAY DVR DR UNLCK FUSE 36 FRT DR LCK FUSE 31 FRT PASS DR UNLCK FUSE 34 GROUND GRY WIRE GRY/BLK WIRE HOOD AJAR SWITCH (W/ REMOTE ENGINE START) HOT AT ALL TIMES BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) HOT AT ALL TIMES UNDERHOOD LEFT REAR SIDE DOOR JAM SWITCH (W/ HINGED DOOR) (AT LEFT "B" PILLAR) LIFTGATE AJAR SW SIG LO SPD GMLAN SERIAL DATA LO SPD SERIAL DATA LT BLU WIRE LT GRN WIRE MEGA FUSE FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) NCA WIRE ORG/BLK WIRE PNK/BLK WIRE PPL PPL CLOSED SW SIG RADIO REAR DR LCK FUSE 32 REAR OPEN SW REAR PASS DR UNLCK FUSE 35 RED/BLK WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (BEHIND CENTER OF DASH) RFA/TPM FUSE 21 RIGHT REAR SIDE DOOR JAM SWITCH (W/ CARGO PASSENGER) (AT RIGHT "B" PILLAR) SW SIG TAN WIRE TAN/BLK WIRE TAN/WHT WIRE W/ COMMERCIAL TRADESMAN W/ HINGED DOOR W/O COMMERCIAL TRADESMAN WHT WIRE YEL WIRE YEL/BLK WIRE

6 7 CAMERA SIG + CAMERA SIG - BACKUP LAMP SPLY VOLT BARE BARE BARE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) CAMERA SHIELD CAMERA SIG (-) DK BLU WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE HOT W/ IGNITION RUN RELAY ENERGIZED ISRVM RVCM FUSE LOGIC INSIDE REARVIEW MIRROR LT BLU WIRE LT GRN WIRE MIRROR DISPLAY NCA WIRE PASSENGER COMPARTMENT FUSE BLOCK PNK WIRE RADIO REAR CAMERA VISION SIG + REARVIEW CAMERA (RIGHT REAR DOOR IN LICENSE PLATE TRIM) RUN/CRANK IGN VOLT 1 SIG GND UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE

BACKUP LAMP SPLY VOLT BARE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) CAMERA SHIELD CAMERA SIG (-) GROUND DISTRIBUTION SYSTEM GRY WIRE HOT W/ IGNITION RUN RELAY ENERGIZED ISRVM RVCM FUSE LT GRN WIRE NCA WIRE PASSENGER COMPARTMENT FUSE BLOCK PNK WIRE RADIO REAR CAMERA VISION SIG + REARVIEW CAMERA (RIGHT REAR DOOR IN LICENSE PLATE TRIM) RUN/CRANK IGN VOLT 1 SIG GND UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE