Chevrolet Chevy Express G2500 (1996-2012) (in body harness, attached to lower right "b" pillar Wiring diagrams

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

1 18 25 COURTESY LP CTRL COURTESY LP CTRL DEFEAT SW SIG 149 (OR 690) 20 CM FROM RIGHT SUNSHADE BREAKOUT) BLK WIRE BLK/WHT WIRE BLU 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 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) TAN/WHT WIRE THE ENGINE BLOCK) UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) UNDERHOOD LAMP UPFTR AUX 1 FUSE 36 (W/ CUTAWAY, AMBULANCE, RV UPFITTERS) UPFTR CTSY LAMPS FUSE 4 UPFTR CTSY LAMPS PCB RELAY (W/ AMBULANCE, RV UPFITTER) 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) (AT LEFT "B" PILLAR) 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) (AT RIGHT "B" PILLAR) TAN/WHT WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

1 14 5 SERIAL DATA BRAKE WARN IND CTRL PASSENGER SEAT BELT IND 19 15 16 ALARM ENABLE SIG HAZARD SW LEFT SIG HAZARD SW RIGHT SIG 2 59 28 60 SERIAL DATA LH SEAT BELT SW LOW REF RH SEAT BELT SW 8 17 PARK LAMP SIGNAL HEADLAMP SW OFF SIG AIR BAG FUSE 28 AUTO OFF 3 8 BATTERY BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) CHIME MODULE (W/O RADIO) (BEHIND LEFT CENTER OF DASH) CONNECTOR BREAKOUT) DATA LINK CONNECTOR (DLC) DK BLU/WHT WIRE DK GRN WIRE DRIVER DOOR LATCH ASSEMBLY (AT REAR OF DRIVER DOOR) DRIVER INFORMATION CENTER (DIC) DISPLAY DRIVER SEAT BELT BUCKLE DRIVER SEAT BELT SWITCH FUSE 22 GROUND GRY WIRE GRY/BLK WIRE HAZARD SWITCH HEAD PARK HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES IGN SW IGNITION KEY SWITCH IGNITION SWITCH PNK WIRE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER LEFT FRONT SEAT) INSTRUMENT PANEL CLUSTER (IPC) LEFT REAR DOOR JAMB SWITCH (W/ LEFT REAR HINGED DOOR) (AT LEFT "B" PILLAR) LEFT TURN LOGIC LT BLU WIRE LT BLU/BLK WIRE OFF ORG/ WIRE PARK BRAKE SWITCH (UNDER LEFT SIDE OF DASH) PARK BRK SW SIG PASSENGER AIR BAG IND PASSENGER DOOR LATCH ASSEMBLY (AT REAR OF FRONT PASSENGER DOOR) PASSENGER SEAT BELT BUCKLE (W/O MANUAL SUPPRESSION SWITCH, RV UPFITTER) PASSENGER SEAT BELT IND PASSENGER SEAT BELT SWITCH PNK IGN VOLT WIRE PNK PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PPL RADIO RDO/CHIME FUSE 20 RED WIRE RED/WHT WIRE RIGHT REAR DOOR JAMB SWITCH (CARGO/ PASSENGER) (AT RIGHT "B" PILLAR) RIGHT TURN RUN WIRE SEAT BELT IND LOW OIL PRESSURE IND TIRE PRESSURE IND SERIAL DATA SPLICE BLOCK SUPPLEMENTAL RESTRAINTS SYSTEM TAN WIRE TAN/WHT WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH W/ ELECTRIC SIDE DOOR LOCK CONTROL W/ MANUAL SUPPRESSION SWITCH W/O MANUAL SUPPRESSION SWITCH, RV UPFITTER W/O RADIO WHT WIRE YEL WIRE YEL/BLK WIRE