Chevrolet Chevy Express G3500 (1996-2012) red Wiring diagrams

4.3L/ 5.3L ABS MDL FUSE 60 ABS MTR FUSE 61 AUX PWR OUTLET FUSE 33 BATTERY BCM 1 FUSE 20 BCM 2 FUSE 37 BCM 3 FUSE 26 BCM 4 FUSE 22 BCM 5 FUSE 27 BCM 6 FUSE 23 BCM 7 FUSE 25 BLK WIRE BLOWER MOTOR RESISTOR BODY CONTROL MODULE (BCM) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BRN WIRE CENTER CONSOLE 1 ACCESSORY CENTER CONSOLE 2 ACCESSORY POWER OUTLET CIGAR LIGHTER CNSTR VENT SOL FUSE 17 DATA LINK CONNECTOR (DLC) ECM BATT FUSE 54 ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE CONTROL MODULE (ECM) EVAPORATIVE EMISSION (EVAP) CANISTER VENT SOLENOID VALVE FCSM BATT SEO FUSE 15 FUSE 21 FRT BLWR FUSE 66 FUSIBLE LINK 2 FUSIBLE LINK 3 GENERATOR LTR/DLC FUSE 38 POWER OUTLET RED WIRE RED/BLK WIRE RED/WHT WIRE STARTER MOTOR TCM BATT FUSE 44 TO CMPS FUSE 2 (DIAGRAM 4 OF 4) TO HIGH BEAM PCB RELAY (DIAGRAM 2 OF 4) TO RUN RELAY 39 (DIAGRAM 4 OF 4) TRAILER CONNECTOR TRANSMISSION CONTROL MODULE (TCM) TRLR WRG FUSE 35 TRLR WRG FUSE 62 UPFTR AUX 2 FUSE 35 UPFTR AUX 2 RELAY 42 (CUTAWAY, AMBULANCE, RV UPFITTERS) W/ ACTIVE BRAKE CONTROL W/ CIGAR LIGHTER W/ CUTAWAY UPFITTER W/ RV UPFITTER W/ TRUCK TRAILER W/O ACTIVE BRAKE CONTROL W/O CIGAR LIGHTER

4.8L 6.0L 5.3L AIR BAG FUSE 34 AUTOMATIC TRANSMISSION BLK WIRE BODY CONTROL MODULE (BCM) BREAKOUT FOR REAR FUSE BLOCK) BRK SW FUSE 32 BRN WIRE CONNECTOR DK BLU WIRE DOME FLUORESCENT WORK LAMPS FUSE 2 ECM IGN FUSE 48 ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE CONTROL MODULE (ECM) ENGINE CONTROL MODULE (EDM) EXCEPT 4.3L 4.3L FLUORESCENT WORK LAMP RELAY FROM MEGA FUSE 77 (DIAGRAM 2 OF 4) FSCM IGN FUSE 11 FUEL PUMP FLOW CONTROL MODULE FUEL PUMP FLOW CONTROL MODULE (5.3L) HARNESS, 15 CM FROM REAR FUSE BLOCK) HARNESS, 7 CM FROM HARNESS, 8 CM FROM REAR FUSE BLOCK) IGNITION SWITCH INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INSTRUMENT PANEL CLUSTER (IPC) IP CLSTR FUSE 30 KEY-IN SWITCH LEFT FRONT ACCESS PANEL RELAY 5 LEFT REAR ACCESS PANEL RELAY 1 LT BLU WIRE OFF ORG/ WIRE PANEL ACTUATOR FUSE 3 PNK WIRE REAR FUSE BLOCK (ON LEFT "B" PILLAR) RED WIRE RED/ WHT WIRE RED/BLK WIRE RIGHT ACCESS PANEL RELAY 6 RUN WIRE RUN/CRNK RELAY 69 STEERING WHEEL SPEED/ POSITION SENSOR STOP LAMP SWITCH STR/WHL SNSR FUSE 36 (W/ ACTIVE CONTROL BRAKE) TCM IGN FUSE 47 THEFT DETERRENT MODULE (TDM) TO BODY FUSE BLOCK (DIAGRAM 4 OF 4) TRANS FUSE 51 TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) W/ CARGO W/ POWER BRAKE W/ ACTIVE BRAKE CONTROL W/O RV UPFITTER, MANUAL W/ MANUAL SUPPRESSION SUPPRESSION WHT RED/ WIRE WHT WIRE YEL WIRE

1 18 25 COURTESY LP CTRL COURTESY LP CTRL DEFEAT SW SIG 149 (OR 690) 16 17 DATA BUS+ DATA BUS- 20 CM FROM RIGHT SUNSHADE BREAKOUT) 2500 2501 COMPUTER DATA LINES SYSTEM BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) CARGO CARGO DOOR LATCH ASSEMBLY (IN RIGHT REAR CARGO DOOR) CARGO/PASSENGER COURTESY LP CTRL CTSY LP CTRL DK BLU WIRE DK BLU/WHT WIRE DOME DOME READING FL DOME RLY CTRL FRONT DOME/ READING LAMPS GRY WIRE GRY/BLK WIRE HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES LEFT SUNSHADE LIFTGATE AJAR SW SIG LOWER RIGHT "B" MIDDLE DOME/ READING LAMPS ORG/ WIRE PASSENGER PASSENGER/CARGO W/O RV UPFITTER PNK/BLK WIRE PPL PROVISIONAL READING REAR DOME/ READING LAMPS (PASSENGER) DOME LAMP (CARGO) RED WIRE RIGHT SUNSHADE (ON UPPER RIGHT OF HEADLINER) SPLICE BLOCK TAN WIRE TAN/BLK WIRE TAN/WHT WIRE THE ENGINE BLOCK) (4.3L: RIGHT REAR OF ENGINE) UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) UNDERHOOD LAMP UPFTR AUX 1 UPFTR CTSY UPFTR CTSY LAMP W/ COMMERCIAL TRADESMAN SALES PACKAGE, CARGO LAMP W/ CUTAWAY W/ CUTAWAY, CARGO W/O RV UPFITTER W/ LEFT, RIGHT SUNSHADE MIRROR W/ RV UPFITTER W/ RV UPFITTER, LEFT, RIGHT SUNSHADE MIRROR W/O RV UPFITTER W/O RV W/ RV UPFITTER UPFITTER WHT WIRE YEL/BLK WIRE

12 CM FROM LEFT FRONT DOME FLUORESCENT WORK LAMP CONNECTOR) BLK WIRE BLU WIRE DK BLU/WHT WIRE DOME FLUORESCENT WORK LAMPS DRIVER DOOR LATCH ASSEMBLY (AT REAR OF DRIVER DOOR) FRONT CARGO FLUORESCENT WORK LAMP FUSE 2 GRY WIRE GRY/BLK WIRE LEFT FRONT ACCESS PANEL FLUORESCENT WORK LAMP LEFT REAR ACCESS PANEL FLUORESCENT WORK LAMP LEFT REAR DOOR JAMB SWITCH (W/ LEFT REAR HINGED DOOR) ORG/ WIRE PACKAGE, CARGO LAMP) DOME FLUORESCENT WORK LAMPS RELAY PASSENGER DOOR LATCH ASSEMBLY (AT REAR OF FRONT PASSENGER DOOR) REAR CARGO FLUORESCENT WORK LAMP REAR FUSE BLOCK (ON LEFT "B" PILLAR) RED WIRE RIGHT ACCESS PANEL FLUORESCENT WORK LAMP RIGHT REAR DOOR JAMB SWITCH (CARGO/ PASSENGER) SPLICE BLOCK TAN/WHT WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

19 16 15 ALARM ENABLE SIG HAZARD SW SIG HAZARD SW SIG 2 1 3 5 B+ B+ B+ RF TURN SIG LP CTRL 2 1 RR TURN SIG LP CTRL LR TURN SIG LP CTRL 5 6 4 STOP LAMPS CTRL BRAKE SIG LF TURN SIG LP CTRL AUX PRK LAMP FUSE 3 BCM 6 FUSE 72 BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK BRN WIRE CARGO/ PASSENGER CENTER HIGH MOUNTED STOP LAMP (CHMSL) CHMSL CTRL CUTAWAY DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER OUTSIDE REARVIEW FRT PRK LAMP FUSE 4 FUSE 26 FUSE 7 GROUND DISTRIBUTION SYSTEM HAZARD SWITCH HOT AT ALL TIMES UNDER- HOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) LEFT LEFT TAIL/STOP, TURN SIGNAL LAMP LICENSE LAMP LT BLU WIRE LT BLU/WHT WIRE LT REAR PARK LAMP FUSE 8 MEGA FUSE MIRROR (IN DRIVER DOOR) MIRROR (IN RIGHT FRONT PASSENGER DOOR) NCA WIRE PARK LAMP CTRL PARK LAMPS SIG PASSENGER OUTSIDE REARVIEW PRK LAMP RELAY PROVISIONAL RED WIRE RED/WHT WIRE RIGHT RIGHT TAIL/STOP, TURN SIGNAL LAMP RT REAR PRK LAMP FUSE 7 SPLICE SUPPLEMENTAL RESTRAINTS SYSTEM TAN WIRE TRAILER TOW CIRCUIT TRLR PRK LAMP FUSE 5 TURN SIGNAL/ MULTI-FUNCTION SWITCH UPFTR PARK LAMP FUSE 6 W/ AMBULANCE, RECREATIONAL VEHICLE SALES PACKAGE W/ FOLDING MIRRORS RADIO BREAKOUT) W/O REAR WINDOW DEFOGGER WHT WIRE YEL WIRE

10 8 9 LO SPD GMLAN HI SPD GMLAN+ BACKUP LAMPS CIRCUIT BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE EXCEPT 5.3L W/ BACKUP ALARM HI SPD GMLAN HOT AT ALL TIMES HOT W/ PRK LAMP LT GRN WIRE LT STOP/ TRN TRLR FUSE 21 LT TRAILER TURN SIGNAL LAMP ORG/ WIRE RED WIRE RED/BLK WIRE RT STOP/ TRN TRLR FUSE 3 RT TRAILER TURN SIGNAL LAMP TAN WIRE TAN/BLK WIRE TRAILER CONNECTOR TRAILER PROVISION (BLUNT CUT) TRLR LT STOP/TRN PCB RELAY TRLR PRK LAMP FUSE 13 TRLR RT STOP/TRN PCB RELAY TRLR WRG FUSE 11 TRLR WRG FUSE 42 UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE WHT(OR BLK) WIRE YEL WIRE

& IGNITION COIL/MODULE 8) 1 2 3 PPL BLK WIRE BRN WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE OIL PRESSURE (EOP) SENSOR (ON TOP REAR OF ENGINE) FUEL INJECTOR 1 FUEL INJECTOR 2 FUEL INJECTOR 3 FUEL INJECTOR 4 FUEL INJECTOR 5 FUEL INJECTOR 6 FUEL INJECTOR 7 FUEL INJECTOR 8 FUEL RAIL PRESSURE (FPR) SENSOR GRY WIRE IGNITION COIL/MODULE 2) IGNITION COIL/MODULE 4 IGNITION COIL/MODULE 6 LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/BLK WIRE PNK 5 6 WIRE PNK 7 8 9 10 11 12 13 14 WIRE PNK PNK PNK PNK PNK PNK PNK PNK PNK 4 5 6 7 8 9 10 11 12 WIRE PNK WIRE PNK/BLK WIRE PPL PPL 16 17 18 RED WIRE SPARK PLUG TAN WIRE TAN/WHT WIRE YEL/BLK WIRE

4.8L/6.0L 5.3L BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLUTCH RLY CTRL CNSTR VENT SOL FUSE 17 COMPT) COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE ECM PWR/TRN FUSE 50 ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) EVAP SOL CTRL EVAPORATIVE EMISSION (EVAP) CANISTER VENT SOLENOID (NEAR FRONT OF FUEL TANK) EVEN IGN/ INJ FUSE 52 FUEL PUMP RELAY 72 (4.8L/6.0L) FUEL/PUMP FUSE 2 GRY WIRE GRY/WHT WIRE HOT AT ALL TIMES IC 1 CTRL IC 2 CTRL IC 3 CTRL IC 4 CTRL IC 5 CTRL IC 6 CTRL IC 7 CTRL IC 8 CTRL IGN INSTRUMENT PANEL CLUSTER (IPC) LOGIC LOW ENGINE OIL PRESSURE IND LOW REF LT BLU WIRE LT BLU/WHT WIRE MAF/ CNSTR VENT FUSE 49 MALFUNCTION INDICATOR LAMP MIL CTRL ODD IGN/INJ FUSE 55 ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK 5 6 7 (OR PNK) WIRE PNK PNK PNK PNK PNK PNK PNK PNK PNK 4 5 6 7 8 9 10 11 12 WIRE PNK PNK PPL PPL 15 16 17 18 19 20 21 22 23 24 WIRE PNK PPL 2 3 4 WIRE PNK WIRE PPL PPL/WHT WIRE PWR/TRN RELAY 76 RED WIRE RED/WHT WIRE SNSR 1 FUSE 46 SNSR 2 FUSE 56 TOS SIG TRANSMISSIONS SYSTEM AIR CONDITIONING SYSTEM UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE WHT WIRE YEL WIRE

& IGNITION COIL/MODULE 7) 1 2 3 PNK WIRE 1 2 3 PPL BARE BLK WIRE BLUNT CUT) BRN WIRE COMPUTER DATA DK GRN WIRE DK GRN/WHT WIRE FCSM BATT FUSE 15 FSCM IGN FUSE 11 GMLAN DATA GRY WIRE HOT AT ALL TIMES HOT W/ RUN/ CRNK RELAY 69 ENERGIZED IGN VOLT IGNITION COIL/MODULE 1 IGNITION COIL/MODULE 3 IGNITION COIL/MODULE 5 LINES SYSTEM LOW REF LT BLU WIRE NCA WIRE ORG/ WIRE PNK PNK PNK PNK PNK PNK PNK PNK PNK 4 5 6 7 8 9 10 11 12 WIRE PNK PNK PPL PPL 15 16 17 18 19 20 21 22 23 24 WIRE PNK WIRE POWER DISTRIBUTION PPL PPL 16 17 18 PUMP CTRL RED WIRE RED/WHT WIRE RELAY CTRL SENS SIG SERIAL DATA SPARK PLUG SYSTEM TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT)

& IGNITION COIL/MODULE 8) 1 2 3 PPL BLK WIRE BRN WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE OIL PRESSURE (EOP) SENSOR (ON TOP REAR OF ENGINE) FUEL INJECTOR 1 FUEL INJECTOR 2 FUEL INJECTOR 3 FUEL INJECTOR 4 FUEL INJECTOR 5 FUEL INJECTOR 6 FUEL INJECTOR 7 FUEL INJECTOR 8 FUEL RAIL PRESSURE (FPR) SENSOR GRY WIRE IGNITION COIL/MODULE 2) IGNITION COIL/MODULE 4 IGNITION COIL/MODULE 6 LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/BLK WIRE PNK 5 6 WIRE PNK 7 8 9 10 11 12 13 14 WIRE PNK PNK PNK PNK PNK PNK PNK PNK PNK 4 5 6 7 8 9 10 11 12 WIRE PNK WIRE PNK/BLK WIRE PPL PPL 16 17 18 RED WIRE SPARK PLUG TAN WIRE TAN/WHT WIRE YEL/BLK WIRE