GMC Cutaway G3500 (2012-2013) heavy duty Wiring diagrams

3 21 DIMMING CTRL TRACTION SW 6 16 TCC BRAKE SIG PRK BRK SW ABS IND. BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BRAKE BOOSTER FLUID FLOW ALARM SWITCH (IN POWER STEERING PUMP OUTLET HOSE) BRAKE FLUID LEVEL SWITCH (AT LEFT REAR OF ENGINE COMPT) BRAKE IND BRAKE PRESSURE DIFFERENTIAL SWITCH (ON BRAKE VALVE, NEAR FRONT OF EBCM) BRAKE WARNING INDICATOR CTRL BREAKOUT TOWARDS INSTRUMENT PANEL CLUSTER) BRK FLUID LEVEL SENSOR SIG BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE GRY WIRE HEAVY DUTY IGN VOLT IGN VOLT STEERING SENS A STEERING SENS C LIGHT DUTY LO SPD GMLAN LOGIC LOGIC STEERING WHEEL SPEED/ POSITION SENSOR (AT BASE OF STEERING COLUMN) LOW STABILITY IND INSTRUMENT PANEL CLUSTER (IPC) LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE ORG/BLK WIRE PARK BRAKE SWITCH (UNDER LEFT PNK 3 4 5 WIRE PNK 7 3 5 6 2 4 1 8 WIRE PNK WIRE PPL RIGHT REAR WHEEL SPEED SENSOR (WSS) (AT RIGHT REAR WHEEL HUB) SERIAL DATA SIDE OF DASH) STEERING SENS B TAN WIRE TAN/WHT WIRE TRACTION CONTROL SWITCH VDC IND WHT WIRE YEL WIRE

5.3L, 4.8L, 6.0L 4.3L 6.6L ABS IND. ABS MDL FUSE 2 ABS MTR FUSE 1 B+ SERIAL DATA ENABLE VEHICLE SPD SIG BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BRAKE BOOSTER FLUID FLOW ALARM SWITCH (IN POWER STEERING PUMP OUTLET HOSE) BRAKE FLUID LEVEL SWITCH (AT LEFT REAR OF ENGINE COMPT) BRAKE IND BRAKE PRESSURE DIFFERENTIAL SWITCH (ON BRAKE VALVE, NEAR FRONT OF EBCM) BRK FLUID LEVEL SENSOR SIG BRAKE WARNING INDICATOR CTRL BRK SW FUSE 13 COMPUTER DATA LINES SYSTEM DK GRN WIRE GND HI SPD GMLAN BUS - HI SPD GMLAN BUS - HEAVY DUTY HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY 15 ENERGIZED INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE 10 LEFT FRONT WHEEL SPEED SENSOR (WSS) (ON INSIDE OF LEFT FRONT WHEEL) LF WHEEL SPEED SENS LOW REF LIGHT DUTY LO SPD GMLAN LOGIC LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE OF DASH, ABOVE BRAKE PEDAL) PARK BRAKE SWITCH (UNDER LEFT PNK WIRE PPL PRK BRK SW RED/BLK WIRE RED/WHT WIRE RF WHEEL SPD SENS LOW REF RIGHT FRONT WHEEL SPEED SENSOR (WSS) (ON INSIDE OF RIGHT FRONT WHEEL) SIDE OF DASH) SIGNAL ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) STOP LAMP SWITCH (BEHIND LEFT SIDE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC BRAKE SIG TOWARDS INSTRUMENT PANEL CLUSTER) UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) VEHICLE SPEED YEL WIRE YEL/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

4.3L 4.8L/5.3L/6.0L 6.6L 2 3 4.3L, 4.8L, 6.0L 5.3L (VIN G) 6.0L (VIN B) 7 8 PPL 9 10 PPL ALTERNATIVE FUEL TANK PRESSURE SENSOR BLK WIRE BRAKE BOOSTER FLUID FLOW ALARM SWITCH (IN POWER STEERING PUMP OUTLET HOSE) BRAKE BOOSTER FLUID PRESSURE ALARM SWITCH (IN POWER STEERING PUMP INLET HOSE) BRAKE FLUID LEVEL SWITCH (AT LEFT REAR OF ENGINE COMPT) BRAKE PRESSURE DIFFERENTIAL SWITCH (ON BRAKE VALVE, NEAR FRONT OF EBCM) BRN WIRE CNG CONTROL MODULE (6.0L(VIN B)) (FORWARD OF LEFT REAR SPRING ON FRAME) CNG FUEL VEHICLE ENGINE CONTROLS SYSTEM ENGINE OIL LEVEL SWITCH (ON LEFT SIDE OF OIL PAN) ENGINE OIL PRESSURE (EOP) SENSOR (EXCEPT 6.6L: ON TOP REAR OF ENGINE) FUEL LEVEL SENSOR (ON FUEL TANK) FUEL PUMP, SENDER ASSEMBLY (ON FUEL TANK) GRN WIRE GRY WIRE HEAVY DUTY LIGHT DUTY LOW REF LPG CONTROL MODULE (6.0L(VIN B)) (ON TANK CONTROL BOX) LPG FUEL VEHICLE W/ 3 TANK LPG FUEL VEHICLE W/ 4 TANK LT BLU/BLK WIRE PPL PPL 2 3 PPL FUEL PUMP RELAY SIG PPL SENSING PRESSING PRIMARY FUEL LEVEL SENSOR PRIMARY SIG FUEL SENDER RED WIRE SECONDARY FUEL LEVEL SENSOR SECONDARY SIG FUEL SENDER TAN WIRE TAN/WHT WIRE W/ BRAKE WARNING INDICATOR SYSTEM WHT WIRE

1 2 3 4 5 PNK PNK WIRE AIR BAG OFF IND AIR BAG ON IND BATT IGN PNK PNK WIRE BLK/BLU WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CONNECTOR BREAKOUT) PNK WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER SEAT BELT SWITCH DRIVER SEAT BELT BUCKLE FRT PRK LAMPS FUSE GRY WIRE HEAVY DUTY HOT AT ALL TIMES BODY FUSE AIR BAG/ AOS BLOCK (UNDER FUSE LEFT FRONT SEAT) HOT W/ PRK LAMPS RELAY HOT W/ RUN/ CRANK RELAY 15 ENERGIZED AIR BAG FUSE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER LEFT FRONT SEAT) LIGHT DUTY LO CTRL HI CTRL HI CTRL LO CTRL L LO CTRL L HI CTRL R HI CTRL R LO CTRL LOGIC LOW REFERENCE LOW SPD BATT GROUND LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PASSENGER SEAT BELT BUCKLE (W/O MANUAL SUPPRESSION SWITCH, RV/UPFITTER) PASSENGER SEAT BELT SWITCH PNK 1 1 1 1 1 1 1 1 1 1 1 1 LO CTRL HI CTRL HI CTRL LO CTRL WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RED WIRE RED/ WHT WIRE RED/WHT WIRE ROLLOVER HI SIG L SEAT BELT SW R SEAT BELT SW SENS SIG SHORTING BAR SHORTING SHORTING BAR BAR STAGE 2 STAGE 1 STEERING WHEEL AIR BAG (LIGHT DUTY) STEERING WHEEL AIR BAG STEERING WHEEL AIR BAG COIL SUPPRESSION IND CTRL SW SIG TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) IPC FUSE W/ MANUAL SUPPRESSION SWITCH W/O MANUAL SUPPRESSION SWITCH, RV/UPFITTER WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1 2 3 4 5 PNK PNK WIRE AIR BAG IND AIR BAG OFF IND AIR BAG ON IND BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRIVER SEAT BELT BUCKLE PRETENSIONER (LIGHT DUTY) FRONT IMPACT SENSOR GRN DK WIRE GRN WIRE GRY WIRE HEAVY DUTY HI SIG IGN INSTRUMENT PANEL CLUSTER (IPC) SEAT BELT IND LEFT FRONT ROOF RAIL AIR GAG LEFT FRONT SIDE IMPACT SENSOR (IN THE LEFT FRONT SIDE DOOR) LEFT REAR SIDE IMPACT SENSOR (LEFT CENTER OF VEHICLE BEHIND BODY PANEL TRIM) LIGHT DUTY LO SPD LOGIC LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PASSENGER PASSENGER AIR BAG IND PASSENGER INSTRUMENT PANEL AIR BAG (LIGHT DUTY) PASSENGER SEAT BELT BUCKLE PRETENSIONER (LIGHT DUTY) PASSENGER SEAT BELT IND PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RED/WHT WIRE RIGHT FRONT ROOF RAIL AIR BAG RIGHT FRONT SIDE IMPACT SENSOR (IN THE RIGHT FRONT SIDE DOOR) RIGHT REAR ROOF RAIL AIR BAG ROLLOVER SENSOR SHORTING BAR STAGE 1 PASSENGER INSTRUMENT PANEL AIR BAG TAN/BLK WIRE TAN/WHT WIRE W/ REAR HINGED DOOR W/ REAR SLIDING DOOR WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE