GMC Cutaway G3500 (2012-2013) hot at all times Wiring diagrams

88 CM FROM RIGHT DOME FLUORESCENT WORK LAMP CONNECTOR BREAKOUT) ACCESS PANEL LEFT SIDE FRONT RELAY CONTROL ACCESS PANEL LEFT SIDE REAR RELAY CONTROL ACCESS PANEL RIGHT SIDE REAR RELAY CONTROL ACCESS PANEL) BETWEEN LEFT SIDE FRONT ACCESS PANEL ACTUATORS) BETWEEN LEFT SIDE REAR ACCESS PANEL ACTUATORS) BLK WIRE BODY CONTROL MODULE (BEHIND LOWER RIGHT SIDE OF DASH) HOT AT ALL TIMES LEFT FRONT ACCESS PANEL RELAY LEFT FRONT SIDE FRONT ACCESS PANEL ACTUATOR (BEHIND LEFT FRONT ACCESS PANEL) LEFT FRONT SIDE REAR ACCESS PANEL ACTUATOR (BEHIND LEFT FRONT LEFT REAR ACCESS PANEL RELAY LEFT REAR SIDE FRONT ACCESS PANEL ACTUATOR LEFT REAR SIDE REAR ACCESS LT BLU WIRE LT GRN WIRE ORG/ WIRE PANEL ACTUATOR (BEHIND LEFT REAR ACCESS PANEL) PANEL ACTUATOR FUSE PNK WIRE REAR BODY FUSE BLOCK (ON LEFT "B" PILLAR) RIGHT REAR PANEL RELAY RIGHT SIDE FRONT ACCESS PANEL ACTUATOR (BEHIND RIGHT FRONT ACCESS PANEL) RIGHT SIDE REAR ACCESS PANEL ACTUATOR (BEHIND RIGHT REAR ACCESS PANEL) TAN WIRE TAN/BLK WIRE

22 27 21 6.6L 4.3L EXCEPT 4.3L 55 43 44 9 28 27 BRAKE SIG SER DATA BUS(+) SER DATA BUS(-) 66 46 6.6L 53 57 40 59 32 16 3 65 35 63 5 6 ACCELERATOR PEDAL POSITION (APP) SENSOR (UNDER LEFT SIDE OF DASH) APP SEN 1 SIG LOW REF APP SEN 2 SIG LOW REF PPL BATT + BCM 2 FUSE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BRAKE APPLY SEN SIG BRAKE LOW REF BRAKE PEDAL POSITION (BPP) SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRAKE SENS SIG BRAKE SIG BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL IND DIMMING SIG CRUISE CONTROL SWITCH SIGNAL CRUISE IND DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM BATT FUSE ENGINE CONTROL MODULE (ECM) GMLAN SER DATA GROUND GRY WIRE HI SPD GMLAN SER DATA BUS- HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY 15 ENERGIZED IGN INFLATABLE RESTRAINT STEERING WHEEL INSTRUMENT PANEL CLUSTER (IPC) IPC FUSE LOGIC LOW REF LOWER RIGHT FRONT OF ENGINE) LT BLU WIRE LT BLU/WHT WIRE MODULE COIL (AT TOP OF STEERING COLUMN) PNK WIRE PPL RED/WHT WIRE SPLY VOLT TAN WIRE TAN/BLK WIRE THROTTLE BODY (EXCEPT 6.6L) (4.8L, 5.3L, 6.0L: ON LEFT SIDE OF THROTTLE BODY) TP SENS 1 SIG LOW REF TP SENS 2 SIG TAC MOTOR CTRL 2 TAC MOTOR CTRL 1 UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK 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 (+) 1959 1955 LR MID OUT (-) RR MID OUT (-) 2 1 8 LO REF 658 1782 VOICE SIG DRAIN WIRE HI SPD GMLAN ANTENNA IN BATT POSITIVE VOLT BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BREAKOUT) BRN/WHT WIRE CELLULAR, DIGITAL RADIO ANTENNA CELLULAR/ NAVIGATION ANTENNA COAX COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CUTAWAY UPFITTER DIGITAL RADIO RECEIVER (LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GRY WIRE HOT AT ALL TIMES INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (AT TOP OF STEERING COLUMN) INFO LED DIMMING CTRL GND LF MID OUT (-) RF MID OUT (-) LEFT CARGO DOOR SPEAKER (IF EQUIPPED) LEFT FRONT SPEAKER LEFT REAR SPEAKER LH AUDIO SIG + RH AUDIO SIG + LO GMLAN SERIAL DATA LO REF LO SERIAL DATA LR MID OUT (+) RR MID OUT (+) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MUTE NCA WIRE ORG/ WIRE PASSENGER/ CARGO PNK WIRE RADIO RADIO ANTENNA RDO/ CHIME FUSE 20 RED/WHT WIRE RIGHT CARGO DOOR SPEAKER (IF EQUIPPED) RIGHT FRONT SPEAKER RIGHT REAR SPEAKER RIGHT STEERING WHEEL CONTROL SWITCH SEEK DOWN SEEK UP SOURCE STEERING WHEEL CTRL TAN WIRE TAN/BLK WIRE TAN/WHT WIRE USB CABLE USB CHARGE USB RECEPTACLE VEHICLE COMMUNICATION INTERFACE MODULE (VICM) (BELOW STEERING COLUMN) VOICE SIG VOL DOWN VOL UP W/ VEHICLE COMMUNICATION SYSTEM W/O VEHICLE COMMUNICATION SYSTEM WHT WIRE YEL WIRE

2500 2501 COMPUTER DATA LINES SYSTEM 28 27 43 44 66 46 28 27 HI SPD SER DATA (+) HI SPD SER DATA (-) 45 61 11 FUEL TEM SIG BRAKE APPLY SEN SIG LOW REF 5.3L 6.6L 4.8L, 6.0L 4.3L AUTOMATIC TRANSMISSION (4 SPEED A/T) AUTOMATIC TRANSMISSION (6 SPEED A/T) AUTOMATIC TRANSMISSION INTERNAL MODE SWITCH (IMS) BCM 2 FUSE 58 BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BRAKE BRAKE POS POS LOW SEN (-) (+) (-) (+) REF SIG BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRK B+ BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) GM LAN HI SPD GRY WIRE HI SPD SER DATA - HI SPD SER DATA + GND HOT AT ALL TIMES MODULE (TCM) ORG/BLK WIRE P/N SIG P/N SIG PARK/NEUTRAL POSITION (PNP) SWITCH RED WIRE SOL CTRL TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TRANSMISSION CONTROL UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE

1 2 B+ GND 1-2 SHIFT SOLENOID (SS) CONTROL 1-2 SHIFT SOLENOID (SS) VALVE 2-3 SHIFT SOLENOID (SS) CONTROL 2-3 SHIFT SOLENOID (SS) VALVE 6 7 8 9 10 11 12 BRAKE SW SIG 6.6L 6.6L AUTOMATIC TRANSMISSION ASSEMBLY AUTOMATIC TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR BLK/WHT WIRE BRK SW FUSE 13 BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY DK BLU WIRE DK GRN WIRE DRIVER INFORMATION CENTER DISPLAY (DIC) ENGINE CONTROL MODULE (ECM) EXCEPT 6.6L 6.6L EXTERIOR LIGHTS SYSTEM 1786 2501 2500 6399 GMLAN HOT AT ALL TIMES HOT W/ RUN/CRNK RELAY 15 ENERGIZED IGN INSTRUMENT CLUSTER INSTRUMENT PANEL CLUSTER LOGIC LOW REFERENCE LT BLU WIRE LT BLU/WHT WIRE ORG/BLK WIRE PC SOLENOID 1 CONTROL PC SOLENOID 2 CONTROL PC SOLENOID 3 CONTROL PC SOLENOID 4 CONTROL PC SOLENOID 5 CONTROL PNK WIRE PRESSURE CONTROL (PC) SOLENOID VALVE 1 PRESSURE CONTROL (PC) SOLENOID VALVE 2 PRESSURE CONTROL (PC) SOLENOID VALVE 3 PRESSURE CONTROL (PC) SOLENOID VALVE 4 PRESSURE CONTROL (PC) SOLENOID VALVE 5 RED/WHT WIRE STOP LAMP SWITCH (BEHIND LEFT SIDE OF DASH, ABOVE BRAKE PEDAL) TAN WIRE TAN/BLK WIRE TCM BATT FUSE 32 TCM IGN FUSE 31 TO AUTOMATIC TRANSMISSION ASSEMBLY (DIAGRAM 2 OF 2) TORQUE CONVERTER CLUTCH (TCC) PRESSURE CONTROL (PC) SOLENOID VALVE TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID CONTROL TOW/HAUL IND TOW/HAUL SWITCH TRANSMISSION CONTROL MODULE (TCM) TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR SIGNAL UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT)

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 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) BRAKE FLUID LEVEL SWITCH BRAKE PRESSURE DIFFERENTIAL SWITCH CHIME MODULE (W/O RADIO) (BEHIND LEFT CENTER OF DASH) COMPUTER DATA LINES SYSTEM CONNECTOR BREAKOUT) 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 GROUND GRY WIRE GRY/BLK WIRE HAZARD SWITCH HAZARD WARNING SWITCH HEAD PARK HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES IGN SW IGNITION KEY SWITCH IGNITION SWITCH 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 LIGHT PPL DUTY LOGIC LT BLU WIRE LT BLU/BLK WIRE OFF ORG/ WIRE PARK BRAKE SWITCH PARK BRK SW SIG PASSENGER DOOR LATCH ASSEMBLY (AT REAR OF FRONT PASSENGER DOOR) PASSENGER SEAT BELT BUCKLE (W/O MANUAL SUPPRESSION SWITCH, RV UPFITTER) PASSENGER SEAT BELT SWITCH PNK IGN VOLT WIRE PNK PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE PPL PPL HEAVY DUTY PPL PNK WIRE PPL PPL SENS SIG RADIO RDO/CHIME FUSE 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 TAN WIRE TAN/WHT WIRE W/ ELECTRIC SIDE DOOR LOCK CONTROL W/ MANUAL SUPPRESSION SWITCH W/O MANUAL SUPPRESSION SWITCH, RV UPFITTER WHT WIRE YEL WIRE YEL/BLK WIRE

BATT+ VOLT BCM 1 FUSE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) DK PPL FRONT WINDSHIELD WIPER SWITCH HI SIGNAL GRN WIRE GRY WIRE HOT AT ALL TIMES LO INT LOW REFERENCE LT BLU WIRE LT GRN WIRE MIST OFF ORG/ WIRE PNK WIRE RED/WHT WIRE TAN WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE WINDSHIELD WASHER PUMP RELAY WINDSHIELD WASHER RELAY CONTROL WINDSHIELD WASHER SWITCH SIGNAL WINDSHIELD WIPER MOTOR (ON LEFT SIDE OF FIREWALL) WINDSHIELD WIPER MOTOR PARK SWITCH SIGNAL WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WINDSHIELD WIPER SWITCH HI SIGNAL WINDSHIELD WIPER SWITCH LOW SIGNAL WINDSHIELD WIPER SWITCH SIGNAL 2 WPR FUSE WSW FUSE YEL WIRE

6.0L (VIN B) 6.0L VIN G 6.0L VIN B A/C REFRIGERANT PRESSURE SENSOR ACC SER DATA IGN VOLT BATT POS VOLT PNK WIRE ACCELERATOR PEDAL POSITION (APP) SENSOR (UNDER LEFT SIDE OF DASH) ANTI-LOCK BRAKES SYSTEM BANK 1 SENSOR 2 BANK 2 SENSOR 2 BLK LT BLU/ WIRE BLK WIRE BLK/WHT WIRE BRAKE PEDAL POSITION (BPP) SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BREAKOUT) BRK SENS SPLY BRK SW FUSE BRN WIRE CNG FUEL VEHICLE COMPUTER DATA LINES SYSTEM CUTAWAY LPG FUEL VEHICLE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM BATT FUSE ECM IGN/ GLOW PLUG MDL IGN FUSE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) ENGINE COOLANT RADIATOR TEMPERATURE SENSOR FUEL PUMP, SENDER ASSEMBLY (ON FUEL TANK) FUEL TANK PRESSURE (FTP) SENSOR (ON FUEL TANK) GRY WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ RUN/ CRANK RELAY 15 ENERGIZED IAT SENS SIG LOW REF ECT SENS SIG LOW REF LOW REF PRESS SENS SIG PPL LT BLU WIRE LT BLU/ BLK WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE MAF SENS SIG LOW REF ORG/BLK WIRE ORG/WHT WIRE PNK IGN VOLT WIRE PNK PPL 2 3 4 WIRE PNK PPL PPL 8 9 WIRE PNK WIRE PPL PPL FUEL LEVEL SENS PPL/WHT WIRE PRESS SENS SIG LOW REF PWR/TRN RLY CTRL RED/WHT WIRE RELAY CTRL START RLY CTRL STARTING/ CHARGING SYSTEM STOP LAMP SWITCH (BEHIND LEFT SIDE OF DASH, ABOVE BRAKE PEDAL) TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC BRAKE SIG TOWARDS INSTRUMENT PANEL CLUSTER) TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) VSS W/ 3 TANK LPG FUEL VEHICLE W/ 4 TANK WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLUTCH RLY CTRL CNSTR/ VENT/ SOL FUSE COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE ECM PWR/TRN FUSE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS IGNITION RELAY EVAP SOL CTRL EVAPORATIVE EMISSION VENT SOLENOID (NEAR FRONT OF FUEL TANK) EVEN IGN/ INJ FUSE FLEX FUEL FUSE FUEL INJECTOR 2 FUEL INJECTOR 4 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 INSTRUMENT PANEL CLUSTER (IPC) LOGIC LOW ENGINE OIL PRESSURE IND LOW REF LT BLU WIRE LT BLU/BLK (OR BLK) WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE MAF/ CNSTR VENT FUSE MALFUNCTION INDICATOR LAMP (MIL) MIL CTRL ODD IGN/INJ FUSE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK (OR RED) WIRE PNK PNK PNK PNK PNK PNK PNK 1 2 3 4 5 6 7 8 WIRE PNK PPL 2 3 4 WIRE PNK PPL PNK PNK PPL WIRE PNK PPL PPL 8 9 WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RED/WHT WIRE SNSR 1 (PRE)/ CLS FUSE SNSR 2 (POST) FUSE TOS SIG TRANSMISSIONS SYSTEM AIR CONDITIONING SYSTEM UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) W/ 3 TANK W/ 4 TANK WHT WIRE YEL WIRE

13 14 15 16 17 18 PNK WIRE BLK WIRE BRN WIRE DK GRN WIRE DK GRN/WHT WIRE FUEL PUMP RELAY GAS FUEL PUMP FUSE GRY WIRE HOT AT ALL TIMES IGNITION COIL 2 IGNITION COIL 4 IGNITION COIL 6 IGNITION COIL 8 LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE MEGA FUSE NATURAL GAS REGULAR GAS NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK PNK 11 12 WIRE PNK PNK 3 4 WIRE PNK PNK 6 7 8 WIRE PNK PNK 8 9 WIRE PNK PPL 14 15 WIRE PNK PPL PNK 19 20 21 WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE REAR LPG CUT-OFF SOLENOID VALVE SECONDARY FUEL PUMP RED WIRE RED/WHT WIRE REGULAR GAS W/ 3 TANK REGULAR GAS W/ 4 TANK SECONDARY LPG PUMP ASSEMBLY SIDE OF ENGINE COMPT) SPARK PLUG UNDERHOOD FUSE BLOCK (ON LEFT