AIR CONDITIONING – GMC Sierra 1500 2014 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 4) for GMC Sierra 1500 2014

List of elements for Automatic A/C Wiring Diagram (1 of 4) for GMC Sierra 1500 2014:

• (left front dash defroster deflector) g218
• (lower right side of hvac module) blower motor
• 5 volt reference
• Ambient light/ sunload sensor (top center of dash)
• Batt positive volt
• Blower mtr spd ctrl
• Computer data lines system
• Defogger system
• Electric variable displacement ctrl
• Electric variable displacement sply
• Frt blwr fuse 40a
• G210 (right front dash defroster deflector)
• Gnd
• Ground distribution system
• Headlights system
• Hot at all times
• Hot w/ ignition main relay energized
• Hvac control module (behind the upper glove box)
• Hvac/aux hvac ign fuse 15a
• Inside air temp sens sig
• Instrument panel junction block
• J212
• Left instrument panel fuse block
• Linear interconnect network bus 9
• Logic
• Low speed gmlan serial data
• Peps/hvac fuse 10a
• Rear air temp door ctrl
• Rear defog rly ctrl
• Right instrument panel fuse block
• Run/crank ign 1 volt
• Solar sensor driver signal
• Twilight sentinel delay signal
• Volt batt positive
• X115
• X215
• X216
• X217

Automatic A/C Wiring Diagram (2 of 4) for GMC Sierra 1500 2014

List of elements for Automatic A/C Wiring Diagram (2 of 4) for GMC Sierra 1500 2014:

• A/c evaporator temperature sensor (on hvac assembly)
• Auto a/c switch
• Computer data lines system
• Defrost switch windshield
• Display
• Down switch temperature left
• Duct left lower air temperature sensor (left side of hvac module)
• Duct left upper air temperature sensor (under upper left side of dash)
• Duct right lower air temperature sensor (lower left of hvac module)
• Duct right upper air temperature sensor (under upper right side of dash)
• Hvac controls
• Info display module
• Off switch
• Recirculation switch
• Red
• Right
• Switch fan up ventilating
• Temperature down switch
• Temperature left
• Up switch
• Up switch temperature right
• Ventilating fan down switch

Automatic A/C Wiring Diagram (3 of 4) for GMC Sierra 1500 2014

List of elements for Automatic A/C Wiring Diagram (3 of 4) for GMC Sierra 1500 2014:

• A/c compressor
• A/c compressor clutch
• A/c compressor solenoid valve
• Air inlet door actuator (behind glove box)
• Air temp door control
• Air temp door position sig
• Computer data lines system
• Data (+)
• Data (-)
• Display
• Engine coolant temperature gauge
• Evap core temp sensor sig
• G110 (left front lower side of engine block)
• Hvac control module (behind the upper glove box)
• Instrument cluster
• J124
• J255
• J257
• Left air temperature door actuator (part of hvac module)
• Left mode door actuator (upper left side of hvac module)
• Logic
• Lower left air temp sens sig
• Lower right air temp sens sig
• Mode 1 valve position sensor sig
• Mode door control
• Most serial
• Pass air temp door ctrl
• Pass air temp door position sig
• Pass air temp motor ctrl
• Recirculation door control
• Recirculation door position sig
• Red
• Right air temperature door actuator (part of hvac module)
• Sens low ref
• Upper left air temp sens sig
• Upper right air temp sens sig

Automatic A/C Wiring Diagram (4 of 4) for GMC Sierra 1500 2014

List of elements for Automatic A/C Wiring Diagram (4 of 4) for GMC Sierra 1500 2014:

• A/c
• A/c compressor clutch relay
• A/c compressor clutch rely ctrl
• A/c press sens 5 volt ref 1
• A/c refrigerant press sens lo ref
• A/c refrigerant press sens sig
• A/c refrigerant pressure sensor (near compressor, on a/c high pressure hose)
• Ambient air temperature sensor (on left side of radiator support)
• Ambt air temp snsr sig
• B+ volt
• Batt + volt
• Clutch fuse 10a
• Computer data lines system
• Cool fan 1 fuse 40a
• Cool fan 2 fuse 40a
• Eng coolant temp sens sig
• Engine control module (left front of engine compt, near fan shroud)
• Engine controls ignition relay
• Engine coolant temperature sensor (4.3l: left side of engine) (except 4.3l: on top of engine)
• G101 (on lower right radiator support)
• G102 (on lower left front of engine)
• G110 (left front lower side of engine block)
• Gnd
• Hi spd cooling fan rly ctrl
• Hi spd gmlan serial data (+) 1
• Hi spd gmlan serial data (-) 1
• Hot at all times
• J115
• J125
• J130 (in engine harness)
• Left cooling fan motor (left front of engine compt)
• Lo ref
• Right cooling fan motor (right front of engine compt)
• Tcm/ecm fuse 15a
• Underhood fuse block (left side of engine compt)
• X105

Manual A/C Wiring Diagram (1 of 3) for GMC Sierra 1500 2014

List of elements for Manual A/C Wiring Diagram (1 of 3) for GMC Sierra 1500 2014:

• (left front dash defroster deflector) g218
• (lower right side of hvac module) blower motor
• 5 volt reference
• Ambient light/ sunload sensor (top center of dash)
• Batt positive volt
• Blower mtr spd ctrl
• Computer data lines system
• Defogger system
• Electric variable displacement ctrl
• Electric variable displacement sply
• Frt blwr fuse 40a
• G210 (right front dash defroster deflector)
• Gnd
• Ground distribution system
• Headlights system
• Hot at all times
• Hot w/ ignition main relay energized
• Hvac control module (behind the upper glove box)
• Hvac/aux hvac ign fuse 15a
• Inside air temp sens sig
• Instrument panel junction block
• J212
• Left instrument panel fuse block
• Linear interconnect network bus 9
• Logic
• Low speed gmlan serial data
• Peps/hvac fuse 10a
• Rear air temp door ctrl
• Rear defog rly ctrl
• Right instrument panel fuse block
• Run/crank ign 1 volt
• Solar sensor driver signal
• Twilight sentinel delay signal
• Volt batt positive
• X115
• X215
• X216
• X217

Manual A/C Wiring Diagram (2 of 3) for GMC Sierra 1500 2014

List of elements for Manual A/C Wiring Diagram (2 of 3) for GMC Sierra 1500 2014:

• A/c compressor
• A/c compressor clutch
• A/c compressor solenoid valve
• Air inlet door actuator (behind glove box)
• Air temp door control
• Air temp door position sig
• Auto a/c switch
• Computer data lines system
• Defrost switch windshield
• Display
• Down switch temperature left
• Engine coolant temperature gauge
• G110 (left front lower side of engine block)
• Hvac control module (behind the upper glove box)
• Hvac controls
• Info display module
• Instrument cluster
• J124
• J255
• J257
• Left air temperature door actuator (part of hvac module)
• Left mode door actuator (upper left side of hvac module)
• Logic
• Mode 1 valve position sensor sig
• Mode door control
• Most serial data (+)
• Most serial data (-)
• Off switch
• Recirculation door control
• Recirculation door position sig
• Recirculation switch
• Right
• Switch fan up ventilating
• Temperature down switch
• Temperature left
• Up switch
• Up switch temperature right
• Ventilating fan down switch

Manual A/C Wiring Diagram (3 of 3) for GMC Sierra 1500 2014

List of elements for Manual A/C Wiring Diagram (3 of 3) for GMC Sierra 1500 2014:

• A/c
• A/c compressor clutch relay
• A/c compressor clutch rely ctrl
• A/c press sens 5 volt ref 1
• A/c refrigerant press sens lo ref
• A/c refrigerant press sens sig
• A/c refrigerant pressure sensor (near compressor, on a/c high pressure hose)
• Ambient air temperature sensor (on radiator support)
• Ambt air temp snsr sig
• B+ volt
• Batt + volt
• Clutch fuse 10a
• Computer data lines system
• Cool fan 1 fuse 40a
• Cool fan 2 fuse 40a
• Eng coolant temp sens sig
• Engine control module (left front of engine compt, near fan shroud)
• Engine controls ignition relay
• Engine coolant temperature sensor (4.3l: left side of engine) (except 4.3l: on top of engine)
• G101 (on lower right radiator support)
• G102 (on lower left front of engine)
• G110 (left front lower side of engine block)
• Gnd
• Hi spd cooling fan rly ctrl
• Hi spd gmlan serial data (+) 1
• Hi spd gmlan serial data (-) 1
• Hot at all times
• J115
• J125
• J130 (in engine harness)
• Left cooling fan motor (left front of engine compt)
• Lo ref
• Right cooling fan motor (right front of engine compt)
• Tcm/ecm fuse 15a
• Underhood fuse block (left side of engine compt)
• X105