Chevrolet Cutaway G3500 (1997-2012) hvac control assembly Wiring diagrams

6.6L 4.3L 4.8L, 5.3L, 6.0L 8 9 2500 2501 GMLAN (+) GMLAN (-) A/C CMPRSR FUSE 18 A/C COMPRSR RELAY 40 A/C LOW PRESSURE SWITCH (ON SIDE OF ACCUMULATOR) A/C REFRIGERANT PRESSURE SENSOR A/C REQUEST SIG BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BRN WIRE COMPUTER DATA LINES SYSTEM DEF MAX A/C MIX-BLEND A/C FLOOR BI-LEV VENT LOGIC DEFOGGER, POWER MIRRORS DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) GMLAN - GMLAN + GRY WIRE HOT AT ALL TIMES HOT W/ RUN/ HVAC 2 FUSE 13 HVAC CONTROL ASSEMBLY LT GRN WIRE OFF ORG/BLK WIRE TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) W/ ELECTRIC REAR WINDOW

AIR TEMPERATURE ACTUATOR AMBIENT LIGHT SENSOR AUTOMATIC TRANSMISSION SHIFT LOCK CONTROL SOLENOID BCK/UP LAMP PCB BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) CARGO DR UNLOCK PCB CENTER CONSOLE 2 ACCESSORY POWER OUTLET CONNECTOR DATA LINK CONNECTOR (DLC) DRIVER INFORMATION CENTER (DIC) SWITCH DRV UNLCK PCB ELECTRONIC COMPASS MODULE FTR REAR DR LOCK PCB FTR REAR PASS DR UNLCK PCB HEADLAMP, PANEL DIMMER SWITCH HEAVY DUTY HORN SWITCH HVAC CONTROL ASSEMBLY INFLATABLE RESTRAINT FRONT PASSENGER PRESENCE SYSTEM (PPS) SENSOR INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH INFLATABLE RESTRAINT I/P MODULE INDICATOR INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INFLATABLE RESTRAINT VEHICLE ROLLOVER SENSOR INSTRUMENT PANEL CLUSTER (IPC) LEFT STEERING WHEEL CONTROL SWITCH LIGHT DUTY REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) RIGHT STEERING WHEEL CONTROL SWITCH RUN WIRE RV UPFITTER STEERING WHEEL SPEED/ POSITION SENSOR THEFT DETERRENT MODULE TOW/ HAUL SWITCH TOWARDS INSTRUMENT CLUSTER PANEL) TURN SIGNAL/ MULTI-FUNCTION SWITCH W/ AUTOMATIC ELECTRONIC CRUISE CONTROL W/ ELECTRIC SIDE DOOR LOCK CONTROL W/ REAR WINDOW DEFOGGER, POWER MIRRORS W/ REDUNDANT RADIO STEERING WHEEL CONTROL W/ REMOTE KEYLESS ENTRY, LOW TIRE PRESSURE INDICATOR W/O MANUAL SUPPRESSION SWITCH, RV UPFITTER WHT WIRE WINDSHIELD WASHER FLUID PUMP WINDSHIELD WIPER MOTOR

2501 2500 2501 2500 COMPUTER DATA LINES SYSTEM AIR TEMPERATURE ACTUATOR (BEHIND RIGHT SIDE OF DASH, ON HVAC) AUXILIARY BLOWER MOTOR (IF EQUIPPED) AUXILIARY BLOWER MOTOR LOW SPEED RELAY (IF EQUIPPED) (LEFT REAR OF PASSENGER AUXILIARY BLOWER MOTOR MEDIUM SPEED RELAY AUXILIARY BLOWER MOTOR RESISTOR ASSEMBLY (IF EQUIPPED) AUXILIARY BLOWER MOTOR SWITCH (IF EQUIPPED) BLK WIRE BLOWER MOTOR (ON RIGHT REAR OF ENGINE COMPT, ON EVAPORATOR CASE) BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BREAKOUT) BRN WIRE BRN/WHT WIRE COMPT, ATTACHED TO AUXILIARY HVAC MODULE) CONNECTOR BREAKOUT) COOLANT HEATER BLOWER MOTOR GND COOLANT HEATER COMBUSTION SENSOR LOW REF COOLANT HEATER CONTROL MODULE COOLANT HEATER GLOW PLUG VOLT DK BLU WIRE DK BLU/LT GRN WIRE FOH MDL (D) FUSE 35 FROM AUXILIARY BLOWER MOTOR BREAKOUT) GND SERIAL - SERIAL + SERIAL - SERIAL + GRN/RED WIRE HOT AT ALL TIMES HOT W/ RUN/ HVAC 1 FUSE 14 HVAC 2 FUSE 13 HVAC CONTROL ASSEMBLY LOGIC 8 10 7 LT BLU WIRE MAX A/C OFF A/C BI-LEV MED LO OFF OF ENGINE BLOCK) ORG/ WIRE REAR BLWR FUSE 29 RED WIRE RED/BLK WIRE RED/WHT WIRE REF SER DATA TAN WIRE TAN/BLK WIRE VACUUM PUMP (6.6L) (RIGHT FRONT OF ENGINE COMPT, UNDER BATTERY) VENT FLOOR MIX-BLEND DEF VOLT W/ AUXILIARY FUEL FIRED HEATER W/O AUXILIARY FUEL FIRED HEATER WHT WIRE YEL 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 59 BCM 2 FUSE 58 BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LOWER RIGHT SIDE OF DASH) BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) 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 ENGINE COMPT) HVAC CONTROL ASSEMBLY IN FRONT HEADLINER HARNESS, 21 CM INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH (W/ MANUAL SUPPRESSION) IPL DIMMING CTRL LEFT STEERING WHEEL CONTROL SWITCH LT BLU WIRE OFF AUTO PARK ORG/WHT WIRE 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 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 RADIO PROVISIONS W/O RV UPFITTER WHT WIRE YEL WIRE

A/C HIGH PRESSURE SWITCH AUXILIARY AIR TEMPERATURE ACTUATOR AUXILIARY MODE ACTUATOR (LEFT REAR OF PASSENGER COMPT) BLK WIRE BLOW FUSE 51 BLOWER MOTOR (RIGHT REAR OF ENGINE COMPT) BLOWER MOTOR RESISTOR ASSEMBLY (RIGHT REAR OF ENGINE COMPT) BODY FUSE BLOCK (BELOW LEFT FRONT SEAT) BRN WIRE BRN/WHT WIRE DEFOGGER SYSTEM DK BLU WIRE DK GRN/WHT WIRE FRONT AUXILIARY HVAC CONTROL ASSEMBLY (IF EQUIPPED) GRY WIRE HOT AT ALL TIMES HOT IN HVAC 1 FUSE 9 HVAC CONTROL ASSEMBLY HVAC FUSE 10 LOGIC LT BLU WIRE LT GRN WIRE MED OFF OFF MAX NORM BI-LEV ORG/ WIRE PPL R DEFOG IND GROUND ING 3 BATTERY RED WIRE RED/BLK WIRE RED/WHT WIRE RR BLOWER FUSE 13 RUN WIRE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VENT HEAT HEAT/DEF DEF VENT HEAT HEAT/DEF DEF OFF MAX NORM BI-LEV WHT WIRE YEL WIRE

BLK WIRE BLOWER MOTOR (ON RIGHT REAR OF ENGINE COMPT, ON EVAPORATOR CASE) BLOWER MOTOR RELAY BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BRN WIRE BRN/WHT WIRE DEFOGGER SWITCH DEFOGGER CONTROL IND DEFOGGER SYSTEM DK BLU WIRE DK GRN/WHT WIRE FRONT AUXILIARY HVAC CONTROL ASSEMBLY FRT BLWR FUSE 74 GRY WIRE HOT AT ALL TIMES HOT W/ RUN/ HVAC 1 FUSE 14 HVAC 2 FUSE 13 HVAC CNTRL FUSE 25 HVAC CONTROL ASSEMBLY LOGIC LT BLU WIRE LT GRN WIRE MED OFF ORG/ WIRE REAR BLWR FUSE 29 RED WIRE RED/BLK WIRE RED/WHT WIRE TAN WIRE UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) VACUUM PUMP (6.6L) (RIGHT FRONT OF ENGINE COMPT, UNDER BATTERY) W/ ELECTRIC REAR WINDOW DEFOGGER, POWER MIRRORS WHT WIRE YEL WIRE

A/C HIGH PRESSURE SWITCH AUXILIARY HVAC CONTROL PROCESSOR (BEHIND AUXILIARY HVAC ASSEMBLY, IN HEADLINER) BLK WIRE BLOW FUSE 51 BLOWER MOTOR (RIGHT REAR OF ENGINE COMPT) BLOWER MOTOR RESISTOR ASSEMBLY (RIGHT REAR OF ENGINE COMPT) BODY FUSE BLOCK (BELOW LEFT FRONT SEAT) BREAKOUT) BREAKOUT) (W/O RV UPFITTER OPTION: IN FRONT HEADLINER HARN, BRN WIRE BRN/WHT WIRE DEFOGGER SYSTEM DK BLU WIRE DK GRN/WHT WIRE EXCEPT RV FRONT AUXILIARY HVAC CONTROL ASSEMBLY GRY WIRE HOT AT ALL TIMES HOT IN HVAC 1 FUSE 9 HVAC CONTROL ASSEMBLY HVAC FUSE 10 LOGIC LT BLU WIRE LT GRN WIRE MED OFF OFF LO MED HI OFF MAX NORM BI-LEV ORG/ WIRE PNK/BLK WIRE PPL PPL/WHT WIRE R DEFOG IND GROUND ING 3 BATTERY REAR REAR AUXILIARY HVAC CONTROL ASSEMBLY RED WIRE RED/BLK WIRE RED/WHT WIRE RR BLOWER FUSE 13 RUN WIRE TAN WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF ENGINE COMPT) VENT HEAT HEAT/DEF DEF VENT HEAT HEAT/DEF DEF OFF MAX NORM BI-LEV WHT WIRE YEL WIRE

BLK WIRE BLOWER MOTOR (ON RIGHT REAR OF ENGINE COMPT, ON EVAPORATOR CASE) BLOWER MOTOR RELAY BODY FUSE BLOCK (UNDER LEFT FRONT SEAT) BREAKOUT) BRN WIRE BRN/WHT WIRE DEFOGGER SWITCH DEFOGGER IND DEFOGGER SYSTEM DK BLU WIRE DK GRN/WHT WIRE FLOOR MIX BLEND DEF MAX A/C OFF A/C BI-LEV FRONT AUXILIARY HVAC CONTROL ASSEMBLY FRT BLWR FUSE 74 GND IGN GRY WIRE HOT AT ALL TIMES HOT W/ RUN/ HVAC 1 FUSE 14 HVAC 2 FUSE 13 HVAC CNTRL FUSE 25 HVAC CONTROL ASSEMBLY INTERIOR LEFT REAR OF ENGINE) (4.3L: RIGHT REAR OF ENGINE) LIGHTS SYSTEM LOGIC 2 1 LT BLU WIRE LT GRN WIRE MAX A/C OFF A/C BI-LEV VENT MED OFF ORG/ WIRE PNK/BLK WIRE PPL PPL/WHT WIRE REAR REAR AUXILIARY HVAC CONTROL ASSEMBLY REAR BLWR FUSE 29 REAR DUAL SIG CTRL REAR DUAL CTRL RED WIRE RED/BLK WIRE RED/WHT WIRE SPLICE BLOCK TAN WIRE UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT) VACUUM PUMP (6.6L) (RIGHT FRONT OF ENGINE COMPT, UNDER BATTERY) VENT FLOOR DEF MIX BLEND W/ ELECTRIC REAR WINDOW DEFOGGER, POWER MIRRORS W/ RV UPFITTER W/O RV (ATTACHED TO LOWER RIGHT "B" PILLAR PART OF UPFITTER W/O RV UPFITTER W/O RV W/ RV UPFITTER UPFITTER WHT WIRE YEL WIRE

ABS FUSE 48 AUX PWR FUSE 29 IPC FUSE 31 AUXILIARY POWER OUTLET BATTERY BLK WIRE BLOW FUSE 51 BLOWER MOTOR RESISTOR ASSEMBLY BODY CONTROL MODULE (BCM) BODY FUSE BLOCK CIGAR FUSE 30 CIGAR LIGHTER DATA LINK CONNECTOR (DLC) DRIVER SEAT ADJUSTER SWITCH (IF EQUIPPED) FLASHER FUSE 14 FROM UNDERHOOD FUSE BLOCK (RFA FUSE 20) (DIAGRAM 1 OF 6) FRONT PASSENGER SEAT ADJUSTER SWITCH (IF EQUIPPED) FUSIBLE LINK B FUSIBLE LINK C GENERATOR HVAC CONTROL ASSEMBLY INSTRUMENT PANEL CLUSTER (IPC) LEFT TRAILER STOP/TURN RELAY (IF EQUIPPED) MEGA FUSE 65 ORG/ WIRE PCM BAT FUSE 2 POWERTRAIN CONTROL MODULE (PCM) ELECTRONIC BRAKE CONTROL MODULE (EBCM) PWR SEAT CIRCUIT BREAKER 60 RADIO RADIO BAT FUSE 1 TRL STOP/TRN FUSE 17 RED WIRE RED/BLK WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (IF EQUIPPED) RFA FUSE 20 RR DEF/HTD MIR FUSE 8 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) TRLR FUSE 13 TRLR FUSE 50 TURN SIGNAL/ HAZARD FLASHER MODULE UNDERHOOD FUSE BLOCK VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) (IF EQUIPPED) W/ REAR WINDOW DEFOGGER/ HEATED MIRRORS

AIR TEMPERATURE ACTUATOR AUXILIARY 1 FUSE 32 AUXILIARY AIR TEMPERATURE ACTUATOR 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 RELAY BODY FUSE BLOCK BREAKOUT) (W/O RV UPFITTER OPTION) (W/ RV UPFITTER OPTION) BRKS FUSE 11 BRN WIRE DK GRN WIRE DRIVER WINDOW SWITCH (IF EQUIPPED) ELECTRONIC BRAKE CONTROL MODULE (EBCM) 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 NOT AVAILABLE FUSE 17 ORG/ WIRE OSRVM FUSE 2 OUTSIDE REARVIEW MIRROR SWITCH (IF EQUIPPED) PROVISIONAL RED/BLK WIRE RED/WHT WIRE RR BLOWER FUSE 13 UNDERHOOD FUSE BLOCK W/ AUXILIARY HVAC W/ REAR AUXILIARY CONTROL W/ REAR AUXILIARY HVAC W/O REAR AUXILIARY CONTROL WND RAP RELAY PWR WND CIRCUIT BREAKER