Chevrolet Express G3500 (2013-2013) tan/blk Wiring diagrams

AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION ASSEMBLY (6 SPEED A/T) AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) AUX/TRLR BCK/UP FUSE BACKUP ALARM (REAR OF VEHICLE ON FRAME) BCK/UP LAMP PCB RELAY BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT BUS-DATA COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DATA BUS - DK BLU WIRE FRONT SEAT) GMLAN HI SPD GRN WIRE GRY WIRE HI SPD GMLAN DATA BUS - HI SPD GMLAN SERIAL DATA BUS + HOT AT ALL TIMES UNDERHOOD MEGA FUSE FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) LEFT BACKUP LAMP (CARGO/ PASSENGER) LEFT TAIL/ STOP/ TURN SIGNAL LAMP LT GRN WIRE NCA WIRE ORG/ WIRE PARK/NEUTRAL POSITION (PNP) SWITCH POWER DISTRIBUTION SYSTEM PROVISIONAL RED WIRE RELAY CTRL RIGHT BACKUP LAMP (CARGO/ PASSENGER) RIGHT TAIL/ STOP/ TURN SIGNAL LAMP SIG A SIG B SIG C TAIL LAMP BCK/UP FUSE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRAILER CONNECTOR (IF EQUIPPED) TRANS RNG SW SIG A TRANS RNG SW SIG B TRANS- MISSION CONTROL MODULE (TCM) TRANSMISSION CONTROL MODULE (TCM) (LEFT FRONT CORNER OF ENGINE COMPT) UNDERHOOD FUSE BLOCK W/ ELECTRICAL BACKUP CUTAWAY ALARM 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) CARGO CARGO DOOR) CARGO/PASSENGER COURTESY LAMPS PROVISION RELAY 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 OF HEADLINER) LEFT SUNSHADE (ON UPPER LIFTGATE AJAR SW SIG LOWER RIGHT "B" MIDDLE DOME/ READING LAMPS ORG/ WIRE PASSENGER PASSENGER COMPARTMENT FUSE BLOCK PASSENGER/CARGO W/O RV UPFITTER PNK/BLK WIRE PPL PROVISIONAL READING REAR CARGO DOOR LATCH ASSEMBLY (IN RIGHT REAR 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 UPFITTER AUX 1 FUSE (W/ CUTAWAY, AMBULANCE, RV UPFITTERS) UPFTR CTSY LAMP FUSE 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

19 16 15 ALARM ENABLE SIG HAZARD SW SIG HAZARD SW SIG 2 1 3 5 B+ B+ B+ RF TURN SIG LP CTRL 8 9 1 DATA BUS (+) DATA BUS (-) GND AUX PRK LAMP FUSE BCM 6 FUSE 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 COMPUTER DATA LINES SYSTEM CUTAWAY DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER OUTSIDE REARVIEW FRT PRK LAMP FUSE FUSE GROUND DISTRIBUTION SYSTEM HAZARD SWITCH HAZARD WARNING SWITCH HOT AT ALL TIMES UNDER- HOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) LEFT LEFT TAIL/STOP, TURN SIGNAL LAMP LICENSE PLATE LAMP LT BLU WIRE LT BLU/WHT WIRE LT REAR PARK LAMP FUSE 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 SPLICE SUPPLEMENTAL RESTRAINTS SYSTEM TAN WIRE TAN/BLK WIRE TRAILER TOW CIRCUIT TRLR PRK LAMP FUSE UPFTR PARK LAMP FUSE W/ AMBULANCE, RECREATIONAL VEHICLE SALES PACKAGE W/ FOLDING MIRRORS RADIO BREAKOUT) W/O REAR WINDOW DEFOGGER WHT WIRE YEL WIRE

24 39 31 16 LOW REF SENS SIG PPL 2759 1589 (OR 6049) 4.3L 4.8L/5.3L/6.0L 6.6L 2 3 44 43 DATA BUS(-) DATA BUS(+) 50 41 36 35 331 2705 4 30 SENS SIG 58 28 1589 2759 PPL 6 7 8 9 PPL PNK WIRE 7 8 PPL 9 10 PPL BLK WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BRN WIRE CARGO DOOR LATCH ASSEMBLY (W/ CARGO/PASSENGER) (IN RIGHT REAR CARGO DOOR) COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER DOOR LATCH ASSEMBLY (AT REAR OF DRIVER DOOR) DRIVER INFORMATION CENTER (DIC) SWITCH ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) GRY WIRE GRY/BLK WIRE ILLUMI- NATION LEFT SLIDING DOOR AJAR SWITCH (W/ LEFT REAR HINGED DOOR) LOW REF PASSENGER DOOR LATCH ASSEMBLY (AT REAR OF FRONT PASSENGER DOOR) PERSON- ALIZATION VEHICLE INFO PNK WIRE PNK/BLK WIRE PPL PPL 2 3 RIGHT SLIDING DOOR AJAR SWITCH (W/ CARGO/PASSENGER) SENS SIG SENS SIG LOW REF SET/ RESET SWITCH SIG TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRIP/ FUEL W/ BRAKE WARNING INDICATOR SYSTEM WATER IN-FUEL SENSOR WHT WIRE YEL WIRE YEL/BLK WIRE

11 12 IPL DIMMER SW SIG IP DIMMING VOLT REF 2 15 HEAD 8 17 PARK LAMPS SIG HEADLAMPS OFF SIG AUXILIARY BLOWER MOTOR SWITCH BCM 1 FUSE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CONNECTOR) PNK WIRE CONTROL DK GRN WIRE DRIVER DOOR LOCK SWITCH DRIVER INFORMATION CENTER (DIC) SWITCH DRIVER WINDOW SWITCH FRONT AUXILIARY HVAC CONTROL ASSEMBLY HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF BCM 2 ENGINE COMPT) FUSE HVAC CONTROL ASSEMBLY HVAC CONTROL PROCESSOR CONNECTOR BREAKOUT) IPL DIMMING CTRL LEFT STEERING WHEEL CONTROL SWITCH LT BLU WIRE OFF AUTO PARK ORG/WHT WIRE PASSENGER AIR BAG DISABLE SWITCH (W/ MANUAL SUPPRESSION) PASSENGER COMPARTMENT FUSE BLOCK PASSENGER DOOR LOCK SWITCH PASSENGER WINDOW SWITCH PNK CONTROL PNK WIRE PNK PNK W/O REDUNDANT RADIO STEERING WHEEL WIRE PNK WIRE RADIO REAR AUXILIARY HVAC CONTROL ASSEMBLY SPLICE BLOCK RED WIRE RED/WHT WIRE RIGHT STEERING WHEEL CONTROL SWITCH SPLICE BLOCK STR/WHL/ SNSR FUSE TAN WIRE TAN/BLK WIRE TOW/HAUL SWITCH TRACTION CONTROL SWITCH (TCS) (W/ ACTIVE BRAKE CONTROL) W/ AUTOMATIC ELECTRONIC CRUISE CONTROL W/ AUXILIARY HEATER W/O REAR A/C W/ ELECTRIC SIDE DOOR LOCK W/ POWER OPERATED WINDOW (W/ POWER MIRRORS, POWER WINDOWS) W/ REAR W/O REAR AUXILIARY AUXILIARY CONTROLS CONTROLS W/ REDUNDANT RADIO STEERING WHEEL W/ RV UPFITTER W/O RV UPFITTER WHT WIRE YEL 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 (+) 10 12 SERIAL DATA BUS (+) HI SPD GMLAN SERIAL DATA BUS(-) 2 1 8 LO REF VOICE SIG DRAIN WIRE HI SPD GMLAN BARE 6817 351 1957 1953 INTERIOR LIGHTS SYSTEM ANTENNA ANTENNA IN ANTI-LOCK BRAKES SYSTEM BARE BLK WIRE BLK/WHT WIRE BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BRN/WHT WIRE CAMERA SIG (-) CELLULAR PHONE, NAVIGATION ANTENNA COAX COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES LED DIMMING CTRL GND LF MID OUT (-) RF MID OUT (-) LH AUDIO SIG + RH AUDIO SIG + LO REF LO SERIAL DATA LR MID OUT (+) RR MID OUT (+) LT BLU WIRE LT BLU/BLK WIRE NAVIGATION ANTENNA NAVIGATION SYSTEM ORG/ WIRE RADIO RDO/ CHIME FUSE 20 RED/WHT WIRE SPD SIG TAN WIRE TAN/BLK WIRE TAN/WHT WIRE USB CABLE USB RECEPTACLE VOICE SIG W/ VEHICLE COMMUNICATION SYSTEM W/O VEHICLE COMMUNICATION SYSTEM WHT WIRE YEL WIRE

10 12 SERIAL DATA BUS (+) HI SPD GMLAN SERIAL DATA BUS(-) 2 1 8 LO REF VOICE SIG DRAIN WIRE HI SPD GMLAN BARE 2500 2501 COMPUTER DATA LINES SYSTEM 4 2 5 LO REF PNK BARE VOICE SIG DRAIN WIRE ANTENNA IN BARE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BREAKOUT) CELLULAR PHONE, NAVIGATION ANTENNA COAX COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CUTAWAY UPFITTER DK BLU WIRE DK GRN WIRE INFO LEFT FRONT DOOR SPEAKER LEFT REAR CARGO DOOR SPEAKER LEFT REAR TRIM PANEL SPEAKER (IF EQUIPPED) LO GMLAN SERIAL DATA LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MUTE ORG/ WIRE PASSENGER/ CARGO PNK 11 12 WIRE PNK WIRE PNK/BLK WIRE RIGHT FRONT DOOR SPEAKER RIGHT REAR CARGO DOOR SPEAKER RIGHT REAR TRIM PANEL SPEAKER (IF EQUIPPED) RIGHT STEERING WHEEL CONTROL SWITCH SEEK DOWN SEEK UP SOURCE STEERING WHEEL AIR BAG COIL STEERING WHEEL CTRL TAN WIRE TAN/BLK WIRE VOL DOWN VOL UP WHT WIRE YEL WIRE

A/C REFRIGERANT PRESSURE SENSOR ACCELERATOR PEDAL POSITION (APP) SENSOR (UNDER LEFT SIDE OF DASH) BLK WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CUTAWAY DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRIVER INFORMATION CENTER DISPLAY GRY WIRE GRY/WHT WIRE HI SPD GMLAN SER DATA - IGN VOLT IND INSTRUMENT CLUSTER LOGIC IND CTRL LOW ENGINE OIL PRESSURE IND LT BLU WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP MIL SER CTRL DATA NITROGEN OXIDES SENSOR 1 (TOP LEFT REAR SIDE OF ENGINE) NITROGEN OXIDES SENSOR 2 (MIDDLE OF DIESEL PARTICULATE FILTER) ORG/BLK WIRE ORG/WHT WIRE PNK 10 11 WIRE PNK 12 13 14 WIRE PNK PNK 7 8 WIRE PNK WIRE PNK/BLK WIRE PPL PPL 1 2 PPL 28 29 PPL PNK 24 25 WIRE PPL/WHT WIRE RED/WHT WIRE REDUCTANT SENSOR MODULE (ABOVE REDUCTANT TANK) REDUCTANT TANK HEATER SENS 1 GND SENS 1 SPLY VOLT SENS 2 GND SENS 2 SPLY VOLT TAN WIRE TAN/BLK WIRE WAIT TO WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

6 7 8 PNK WIRE AUXILIARY BATTERY BATTERY BLK WIRE BLK/WHT WIRE BRN WIRE CHARGE AIR COOLER INLET TEMPERATURE SENSOR (ON INTAKE MANIFOLD) CHARGE AIR COOLER OUTLET TEMPERATURE SENSOR (NEAR COOLANT SURGE TANK) COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FUSIBLE LINK 1 FUSIBLE LINK 4 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE HI SPD GMLAN SER DATA - HTR CTRL IAH COMM 1 IAH COMM 2 IAH CURRENT FEEDBACK SIG IAH CURRENT SIG IAH DIG SIG IAH FDBK SIG IAH HEART BEAT SIG IAH SW ON/OFF SIG IAH TEMP FEEDBACK SIG IAH TEMP SIG IAH VOLT FEEDBACK SIG IAH VOLT SIG IGN 1 VOLT INTAKE AIR HEATER (BETWEEN INTAKE MANIFOLD TUBE, AIR COOLER OUTLET DUCT) LINE HTR CTRL LOWER RIGHT FRONT OF ENGINE) LT GRN WIRE MANIFOLD ABSOLUTE PRESSUE (MAP) SENSOR (ATTACHED TO INTAKE MANIFOLD TUBE) ORG/BLK WIRE ORG/WHT WIRE PLUG 1 CTRL PLUG 2 CTRL PLUG 3 CTRL PLUG 4 CTRL PLUG 5 CTRL PLUG 6 CTRL PLUG 7 CTRL PLUG 8 CTRL PNK 10 11 WIRE PNK 12 13 14 WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE PUMP HTR CTRL RED WIRE RED/WHT WIRE SENS 1 GND SENS 1 SPLY VOLT SENS 2 GND SENS 2 SPLY VOLT STARTER MOTOR TAN WIRE TAN/BLK WIRE UNDERHOOD JUNCTION BLOCK WAKEUP SER DATA WHT WIRE WHT/YEL WIRE YEL WIRE

5 VOLT REF 6 7 8 PNK WIRE ACT CTRL CLOSE ACT CTRL OPEN BLK/WHT WIRE BRK APLY SENS SIG BRN WIRE BRN/GRY WIRE BRN/WHT WIRE CAC TEMP SENS RTN CAC TEMP SENS SIG CKP SENS SIG CMP SENS SIG CTRL CYL 2 CTRL CYL 3 CTRL CYL 5 CTRL CYL 8 DK BLU WIRE DK BLU/WHT WIRE DK BLU/YEL WIRE DK GRN WIRE DK GRN/WHT WIRE ECT SENS SIG EGR VALVE SENS SIG EGRT SENS 1 SPLY VOLT EGRT SENS 2 SPLY VOLT EGRV MTR HIGH SIG EGRV MTR LOW SIG EGT SENS 1 SIG ENGINE CONTROL MODULE (ECM) EXHAUST TEMPERATURE SENSOR 1 FUEL TEMP 1 SIG FUEL TEMP SIG GRY WIRE GRY/BLK WIRE GRY/WHT WIRE INTAKE AIR FLOW VALVE LOW REF LOWER RIGHT FRONT OF ENGINE) LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE OIL PRESSURE SENS SIG ORG/BLK WIRE PNK 5 6 7 8 9 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POS SENS SIG POS SENS SIG 1 PPL/WHT WIRE PRESSURE SENS SIG PRESSURE SW SIG RED/WHT WIRE SENS SPLY VOLT SPLY CYL 2 SPLY CYL 3 SPLY CYL 5 SPLY CYL 8 TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TEMP 1 RTN TEMP SENS RTN TEMP SENS SIG WATER IN FUEL SENS SIG WATER IN-FUEL SENSOR WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE