Chevrolet Chevy Express G1500 (1996-2012) org/ Wiring diagrams

AUXILIARY 1 FUSE 32 BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) CARGO CARGO DOOR LATCH ASSEMBLY CTSY CTSY LPS SUPPLY BATTERY DK BLU/WHT WIRE DOME DOME DEFEAT DOME HNDL DOOR OPEN SW SIG REAR DOOR AJAR CTSY LAMPS ON SIG LF DOOR SW SIG DRIVER DOOR LATCH ASSEMBLY FL WORK LMP SIG FL WORK LMP CTRL GRY/BLK WIRE HEADLAMP AND PANEL DIMMER SWITCH HNDL HOT AT ALL TIMES LEFT REAR DOOR JAMB SWITCH LT GRN WIRE NOT USED ORG/ WIRE PASSENGER DOOR LATCH ASSEMBLY POWER PPL PPL DEFEAT SW SIG REAR DOME LAMP RED WIRE RED/WHT WIRE RIGHT REAR DOOR JAMB SWITCH TAN WIRE TBC 2 FUSE 18 UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) W/ POWER DOOR LOCKS W/O POWER DOOR LOCKS YEL/BLK WIRE

BLK WIRE DK BLU/WHT WIRE DOME DOME FLOUR- ESCENT FUSE 2 DOME FLUORESCENT WORK LAMP 1 DOME FLUORESCENT WORK LAMP 2 DOME FLUORESCENT WORK LAMP RELAY (AT LEFT "B" PILLAR) DOME READING FRONT COURTESY/ READING LAMPS FRONT COURTESY/ READING LIGHT GRY/BLK WIRE HARNESS, 12 CM FROM LEFT FRONT DOME FLUORESCENT WORK LAMP CONNECTOR) LEFT FRONT DOME FLUORESCENT WORK LAMP LEFT REAR DOME FLUORESCENT WORK LAMP LEFT VANITY MIRROR LAMP MID COURTESY/ READING LAMPS NCA WIRE ORG/ WIRE READING REAR COURTESY READING LAMPS REAR FUSE BLOCK (ON LEFT "B" PILLAR) RED WIRE RIGHT DOME FLUORESCENT WORK LAMP RIGHT VANITY MIRROR LAMP UNDERHOOD LAMP W/ CARGO/CUTAWAY W/O CARGO/CUTAWAY 2 3 4 W/O VANITY MIRRORS W/ VANITY MIRRORS

12 CM FROM LEFT FRONT DOME FLUORESCENT WORK LAMP CONNECTOR) AUXILIARY 1 FUSE 32 BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) CARGO DOOR LATCH ASSEMBLY CTSY CTSY LP RELAY 26 CTSY LP/ SEO FUSE 3 CTSY LPS SUPPLY BATTERY DK BLU WIRE DK BLU/WHT WIRE DOME DOME DEFEAT DOME FLOUR- ESCENT FUSE 2 DOME FLUORESCENT WORK LAMP 1 DOME FLUORESCENT WORK LAMP 2 DOME FLUORESCENT WORK LAMP RELAY (AT LEFT "B" PILLAR) DOME HNDL DOOR OPEN SW SIG REAR DOOR AJAR CTSY LAMPS ON SIG REAR DOOR SW SIG DRIVER DOOR LATCH ASSEMBLY FL DOME LP SIG FL DOME RLY CTRL GRY/BLK WIRE HEADLAMP AND PANEL DIMMER SWITCH HNDL HOT AT ALL TIMES LEFT FRONT DOME FLUORESCENT WORK LAMP LEFT REAR DOME FLUORESCENT WORK LAMP LEFT REAR DOOR JAMB SWITCH LEFT VANITY MIRROR LAMP LT GRN WIRE NOT USED ORG/ WIRE PASSENGER DOOR LATCH ASSEMBLY POWER PPL PPL DEFEAT SW SIG PROVISIONAL REAR FUSE BLOCK (ON LEFT "B" PILLAR) RED WIRE RED/WHT WIRE RIGHT DOME FLUORESCENT WORK LAMP RIGHT REAR DOOR JAMB SWITCH RIGHT VANITY MIRROR LAMP TAN WIRE TBC 2 FUSE 18 UNDERHOOD LAMP VANITY MIRROR LAMP CONNECTOR BREAKOUT) WHT WIRE YEL/BLK WIRE

BATTERY POSITIVE VOLTAGE BLK WIRE BLU WIRE BRN WIRE BTSI BCK/UP FUSE 36 DK BLU WIRE DK DK LT DK GRN WIRE FUSE BLOCK- UNDERHOOD (ON LEFT SIDE OF ENGINE COMPARTMENT) FUSE BLOCK- UNDERHOOD (ON LEFT SIDE OF ENGINE COMPARTMENT) RT DRL/ TURN FUSE 9 GRN WIRE GROUND HAZRD FUSE 14 HOT AT ALL TIMES HOT IN RUN OR START IGN E FUSE 22 LT BLU WIRE LT DRL/ TURN FUSE 10 LT REAR STOP/ TRN FUSE 3 TRLR STOP/ TRN FUSE 17 LT GRN WIRE MARKER LAMP (LF) MARKER LAMP (RF) ORG/ WIRE PARK/ TURN SIGNAL LAMP (LF) PARK/ TURN SIGNAL LAMP-RF PARK/NEUTRAL POSITION SWITCH (ON LEFT SIDE OF TRANSMISSION) PNK 8 9 WIRE PNK WIRE RED WIRE RED/WHT WIRE RT REAR STOP/ TRN FUSE 4 STOP LAMP FUSE 7 STOP LAMP SWITCH (ABOVE BRAKE PEDAL) TRAILER AUXILIARY SUPPLY VOLTAGE TRAILER BACKUP LAMPS SUPPLY VOLTAGE TRAILER PARK LAMPS SUPPLY VOLTAGE TRAILER STOP/ TURN RELAY- LEFT TRAILER STOP/ TURN RELAY- RIGHT TRAILER WIRING (BLUNT CUT) TRLR BCK/UP FUSE 5 TRLR FUSE 13 TRLR FUSE 50 WHT WIRE YEL WIRE

ABS/VSE FUSE 48 AUX PWR FUSE 29 IPC FUSE 31 AUXILIARY POWER OUTLET 2 BATTERY BLK WIRE BLOW FUSE 51 BLOWER MOTOR RESISTOR ASSEMBLY BODY CONTROL MODULE (BCM) BODY FUSE BLOCK CHIME (W/O RADIO) CIGAR LIGHTER AUXILIARY POWER OUTLET 1 DATA LINK CONNECTOR (DLC) DRIVER SEAT ADJUSTER SWITCH (IF EQUIPPED) ELECTRONIC BRAKE CONTROL MODULE (EBCM) FROM UNDERHOOD FUSE BLOCK (RFA FUSE 20) (DIAGRAM 1 OF 6) FRONT PASSENGER SEAT ADJUSTER SWITCH (IF EQUIPPED) FUSIBLE LINK 2 FUSIBLE LINK 3 GENERATOR HAZRD FUSE 14 INSTRUMENT PANEL CLUSTER (IPC) LEFT TRAILER STOP/TURN RELAY (IF EQUIPPED) LTR FUSE 30 MEGA FUSE 65 ORG/ WIRE PCM BAT FUSE 2 POWERTRAIN CONTROL MODULE (PCM) PWR SEAT CIRCUIT BREAKER 60 RADIO (W/ RADIO) HVAC CONTROL ASSEMBLY RADIO BAT FUSE 1 RR DEF/HTD MIR FUSE 8 RED WIRE RED/BLK WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (IF EQUIPPED) RFA FUSE 20 RIGHT TRAILER STOP/TURN RELAY (IF EQUIPPED) SPARE FUSE 64 STARTER STOP LAMP SWITCH STOP LP FUSE 7 TBC 2 FUSE 18 TBC 3 FUSE 16 TBC 4 FUSE 11 TBC FUSE 19 TO BODY FUSE BLOCK (DOOR LKS FUSE 15) (DIAGRAM 2 OF 6) TO UNDERHOOD FUSE BLOCK (CAN VENT FUSE 34) (DIAGRAM 2 OF 6) TO UNDERHOOD FUSE BLOCK (TBC FUSE 19) (DIAGRAM 1 OF 6) TRL STOP/TRN FUSE 17 TRLR FUSE 13 TRLR FUSE 50 TURN SIGNAL/ HAZARD FLASHER MODULE UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) W/ CIGAR LIGHTER W/ REAR WINDOW DEFOGGER/ HEATED MIRRORS W/O CIGAR LIGHTER

AIRBAG FUSE 37 BANK 1 SENSOR 1 BANK 1 SENSOR 2 BANK 2 SENSOR 1 BANK 2 SENSOR 2 BRN WIRE BTSI/BU FUSE 36 SPARE FUSE 35 CRUISE CONTROL MODULE (IF EQUIPPED) THROTTLE ACTUATOR CONTROL MODULE CTSY LP RELAY 26 (RV/UPFITTER) CTSY LP/SEO FUSE 3 DK GRN WIRE FR PRK FUSE 22 FROM UNDERHOOD FUSE BLOCK (IGN A FUSE 49) (DIAGRAM 2 OF 6) FROM UNDERHOOD FUSE BLOCK (IGN B, FUSE 52) (DIAGRAM 2 OF 6) FUSE 39 FUSE 40 HEATED OXYGEN SENSOR HEATED OXYGEN SENSOR HEAVY DUTY IGNITION SWITCH INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH (HEAVY DUTY) INFLATABLE RESTRAINT PASSENGER AIRBAG OFF/ON INDICATOR INFLATABLE RESTRAINT PASSENGER PRESENCE SYSTEM (PPS) MODULE (LIGHT DUTY) INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE ISRVM FUSE 26 LEFT FRONT MARKER LAMP LEFT FRONT PARK/TURN SIGNAL LAMP LICENSE LAMP LIGHT DUTY LOCK LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE PARK PARK LP RELAY 29 PARK/ NEUTRAL POSITION (PNP) SWITCH REVERSE PCM IGN 1 FUSE 38 PNK WIRE RED/BLK WIRE RIGHT FRONT PARK/TURN SIGNAL LAMP RIGHT FRONT MARKER LAMP RIGHT TAIL/STOP, TURN SIGNAL LAMP LEFT TAIL/STOP, TURN SIGNAL LAMP RR PRK FUSE 20 LR PRK FUSE 18 RUN WIRE SPARE FUSE 25 STEERING WHEEL SPEED/ POSITION SENSOR STOP LAMP SWITCH (BLUNT CUT) (NOT USED) TBC IGN 1 FUSE 24 TO BODY FUSE BLOCK (AUXILIARY 1 FUSE 32) (DIAGRAM 5 OF 6) TO BODY FUSE BLOCK (BRK FUSE 11) (DIAGRAM 5 OF 6) TO UNDERHOOD FUSE BLOCK (CRANK FUSE 27) (DIAGRAM 4 OF 6) TO UNDERHOOD FUSE BLOCK (ENG 2 FUSE 21) (DIAGRAM 4 OF 6) TO UNDERHOOD FUSE BLOCK (IGN O FUSE 6) (DIAGRAM 4 OF 6) TO UNDERHOOD FUSE BLOCK (TBC ACC FUSE 46) (DIAGRAM 4 OF 6) TRAILER WIRING CUTAWAY TRLR BU FUSE 5 BTSI FUSE 28 TRLR PRK FUSE 21 UPFTR PRK FUSE 16 UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE

AIR TEMPERATURE ACTUATOR AUXILIARY 1 FUSE 32 AUXILIARY HIGH SPEED BLOWER MOTOR RELAY AUXILIARY HVAC CONTROL PROCESSOR AUXILIARY LOW SPEED BLOWER MOTOR RELAY AUXILIARY MED SPEED BLOWER MOTOR RELAY AUXILIARY MODE ACTUATOR AUXILIARY AIR TEMPERATURE ACTUATOR AUXILIARY RELAY 24 BLK WIRE BODY CONTROL MODULE BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BREAKOUT) (W/O RV UPFITTER OPTION) (W/ RV UPFITTER OPTION) BRK FUSE 11 BRN WIRE DK GRN WIRE DRIVER WINDOW SWITCH (IF EQUIPPED) ELECTRONIC BRAKE CONTROL MODULE (EBCM) ELECTRONIC BRAKE CONTROL MODULE (EBCM) TRACTION CONTROL SWITCH FROM BODY FUSE BLOCK (CTSY LP/SEO FUSE 3) (DIAGRAM 3 OF 6) FROM IGNITION SWITCH (DIAGRAM 3 OF 6) FRONT AUXILIARY HVAC CONTROL ASSEMBLY FRONT AUXILIARY HVAC CONTROL ASSEMBLY REAR AUXILIARY HVAC CONTROL ASSEMBLY FRONT PASSENGER WINDOW SWITCH (IF EQUIPPED) HVAC 1 FUSE 9 HVAC CONTROL ASSEMBLY HVAC FUSE 10 ORG/ WIRE OSRVM FUSE 2 OUTSIDE REARVIEW MIRROR SWITCH (IF EQUIPPED) PROVISIONAL RAP RELAY 23 PWR WND CIRCUIT BREAKER 34 REAR BLOWER FUSE 13 RED/BLK WIRE RED/WHT WIRE SPARE FUSE 1 TAN WIRE UNDERHOOD FUSE BLOCK W/ ACTIVE HANDLING W/ AUXILIARY HVAC W/ REAR AUXILIARY CONTROL W/ REAR AUXILIARY HVAC W/O ACTIVE HANDLING W/O REAR AUXILIARY CONTROL

7 CM FROM BREAKOUT FOR REAR FUSE BLOCK) APPROX 15 CM FROM REAR FUSE BLOCK) APPROX 8 CM FROM REAR FUSE BLOCK) AUXILIARY HIGH SPEED BLOWER MOTOR RELAY AUXILIARY LOW SPEED BLOWER MOTOR RELAY AUXILIARY MED SPEED BLOWER MOTOR RELAY BLUNT CUT) DOME FLUORESCENT WORK LAMP RELAY DOME FLUORESCENT WORK LAMPS FUSE 2 FROM BODY FUSE BLOCK (AUXILIARY 1 FUSE 32) (DIAGRAM 5 OF 6) FROM BODY FUSE BLOCK (RR BLOWER FUSE 13) (DIAGRAM 5 OF 6) LEFT SIDE FRONT ACCESS PANEL RELAY 5 LEFT SIDE REAR ACCESS PANEL RELAY 1 ORG/ WIRE PANEL ACTUATOR FUSE 3 PROVISIONAL REAR FUSE BLOCK (ON LEFT "B" PILLAR) RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT SIDE ACCESS PANEL RELAY 6 W/ AUXILIARY HVAC W/ COMMERCIAL OPTION W/O CUTAWAY W/O AUXILIARY HVAC W/O COMMERCIAL OPTION W/O COMMERCIAL OPTION W/ CUTAWAY

BLK WIRE BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BRN/WHT WIRE DEFOGGER SYSTEM DK BLU/WHT WIRE DRIVER OUTSIDE REARVIEW MIRROR (IN DRIVER DOOR) DRIVER PASSENGER EXTERIOR LIGHTS DEFOGGER SYSTEM SYSTEM HOT AT ALL TIMES LT BLU/WHT WIRE LT GRN WIRE NCA WIRE ORG/ WIRE ORG/WHT WIRE OSRVM SW FUSE 9 OUTSIDE REARVIEW MIRROR SWITCH PASSENGER OUTSIDE REARVIEW MIRROR (IN RIGHT FRONT PASSENGER DOOR) PPL/WHT WIRE RED/WHT WIRE RL (+) UP DN UP DN UP UP/DN WHT WIRE YEL WIRE

21 22 23 24 25 26 27 28 PPL 29 30 31 PNK WIRE 5.3L A/C REQUEST A/C SYSTEM (W/ FRONT MANUAL CONTROLS) ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CRANK FUSE 27 CTRL DEL TORQ SIG PC SOL HI CTRL DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EVAP CANP CTRL EVAP VENT CTRL MIL CTRL 2-3 SS CTRL 1-2 SS CTRL VSS GEN CYCLE SIG GEN TURN ON GRY WIRE HOT IN RUN, START HOT IN START IAT SIG IC 1 CTRL IC 7 CTRL IC 6 CTRL IC 4 CTRL PPL IC 8 CTRL IC 2 CTRL IC 5 CTRL IC 3 CTRL IGN IGNITION COILS INSTRUMENT PANEL CLUSTER LOGIC LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE MAF SIG MAP SIG MALFUNCTION INDICATOR LAMP NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PC SOL LO CTRL PMP RLY CTRL PCM IGN 1 FUSE 38 PNK 1 2 3 4 5 6 WIRE PNK 7 8 WIRE PNK WIRE POWERTRAIN CONTROL MODULE (IN ENGINE COMPT, ON LEFT INNER FENDER) PPL PPL FRONT LOW SIG FRONT HIGH SIG AT ISS HIGH SIG AT ISS LOW SIG 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 TCC SOL CTRL CLUT RLY CTRL TFT SENS SIG PPL UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPARTMENT) W/ ACTIVE BRAKE CONTROL WHT WIRE YEL WIRE YEL/BLK WIRE