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Air Conditioning — Chevrolet Impala LT 2014 Wiring Diagram

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 4) for Chevrolet Impala LT 2014

List of elements for Automatic A/C Wiring Diagram (1 of 4) for Chevrolet Impala LT 2014:

(base of left "a' pillar) g203
5-volt ref
A/c compressor (lower left front of engine)
A/c compressor clutch
A/c compressor solenoid valve
Battery positive voltage
Blower motor (under right side of dash)
Blower mtr spd ctrl
Computer data lines system
Defogger system
Display fuse 15a
Ele variable displacement ctrl
Ele variable displacement sply
Frt/hvac fuse 40a
G120 (3.6l) g122 (except 3.6l) (3.6l: left side of engine, below starter) (except 3.6l: rear center engine compt)
G302 (right front "a" pillar)
Gnd
Ground
Hot at all times
Hot w/ ignition main relay energized
Humidity sens sig
Humidity temp sens sig
Hvac control module
Hvac/cntrl fuse 10a
Inside air temp sens low ref
Inside air temp sens sig
Instrument panel fuse block (right kick panel)
Ip ign fuse 5a
J120
J207
J209
J210
Linear interconnect network bus 9
Logic
Low speed gmlan serial data
Nca
Power distribution system
Rear defog rly ctrl
Red
Right cooling fan motor (behind right side of radiator)
Run/crank ignition 1 volt
Solar sens drv sig
Spd ctrl blwr mtr
Temp sens low ref
Underhood fuse block (right side of engine compt)
Volt batt pos
W/ fcw
W/o fcw
Windscreen temp sens sig
Windshield temperature & inside moisture sensor (if equipped)
X115
X116
X200
X210

Automatic A/C Wiring Diagram (2 of 4) for Chevrolet Impala LT 2014

List of elements for Automatic A/C Wiring Diagram (2 of 4) for Chevrolet Impala LT 2014:

(forward lamp harness, 5.8 cm from breakout to washer fluid container) j150
(not used)
2.4l
87a
A/c
A/c ind
A/c switch
Ac clutch fuse 10a
Auto ind
Auto switch
Blower switch
Bus 9 ser data gnd
Compressor clutch relay
Computer data lines system
Cool fan hi fuse 40a
Cool fan lo fuse 40a
Cooling fan high speed relay
Cooling fan low speed relay
Cooling fan speed control relay
Defrost & lower air outlet ind
Defrost & lower air outlet switch
Driver information center display
Engine controls ignition relay
Engine coolant temperature gauge
Except 2.4l
Fan rly a fuse 10a
G101 (engine compt center front)
G203 (base of left "a" pillar)
Hot at all times
Hvac controls
Instrument cluster
J101
J209
Left temperature control switch
Logic
Lower air outlet ind
Lower air outlet switch
Recirculation ind
Recirculation switch
Red
Right temperature control switch
Serial data gmlan low speed
Sync ind
Sync switch
Underhood fuse block (right side of engine compt)
Upper & lower air outlet ind
Upper & lower air outlet switch
Upper air outlet ind
Upper air outlet switch
Windshield defrost ind
Windshield defrost switch

Automatic A/C Wiring Diagram (3 of 4) for Chevrolet Impala LT 2014

List of elements for Automatic A/C Wiring Diagram (3 of 4) for Chevrolet Impala LT 2014:

(hvac assembly harness, between the breakout to the hvac control module & air temperature sensor - duct left lower) j217
(on a/c line, under air cleaner) a/c refrigerant pressure sensor
(right rear side of engine) (2.4l) heater coolant pump
2.4l
A/c evaporator temperature sensor (left side of hvac module)
Ambient light/sunload sensor (top center of dash)
Anti-theft system
Auxiliary heater coolant pump relay
Battery fuse block
Cabin cool pmp fuse 5a
Duct left lower air temperature sensor (left side middle of hvac assembly)
Duct left upper air temperature sensor (left side top of hvac assembly)
Duct right lower air temperature sensor (right side middle of hvac assembly)
Duct right upper air temperature sensor (right side top of hvac assembly)
Ecm fuse 25a
Except 2.4l
Fuse 250a
G106 (center engine compt on frame rail)
G122 (rear center engine compt)
Headlights system
Hot at all times
Hot w/ engine controls ignition relay energized
J120
Left cooling fan motor (behind left side of radiator)
Red
Underhood fuse block (left side of battery)
X116
X117

Automatic A/C Wiring Diagram (4 of 4) for Chevrolet Impala LT 2014

List of elements for Automatic A/C Wiring Diagram (4 of 4) for Chevrolet Impala LT 2014:

(3.6l: left rear of left cylinder head) (except 2.4l: right rear side of engine) (2.5l: rear top of engine) engine coolant temperature sensor
(hvac assembly harness, between the breakout to the hvac control module & evaporator temperature sensor)
(inside air cleaner assembly) engine control module (ecm)
2.4l
5v volt ref
A/c low ref
A/c press sens sig
Air inlet door motor (front right center of hvac assembly)
Air inlet dr stepper mtr ctrl
Cmprsr clutch rly ctrl
Computer data lines system
Cooling fan relay ctrl hi spd
Cooling fan relay ctrl lo spd
Evap core temp sens sig
Except 2.4l
G121 (rear center engine compt)
Gmlan serial data (+)
Gmlan serial data (-)
Htr rly ctrl
Hvac control module
J121
J216
Left air temperature door actuator (left side of hvac module)
Lower left air temp sens sig
Lower right air temp sens sig
Main rly fuse sply
Mode door actuator (mounted to left of hvac assembly)
Mode dr stepper motor ctrl
Right air temp door pos sig
Right air temp motor ctrl
Right air temperature door actuator (right side of hvac module)
Sens lo ref
Sens low ref
Sig gnd
Temp dr stepper motor ctrl
Temp sens sig eng coolant
Underhood fuse block (right side of engine compt)
Upper left air temp sens sig
Upper right air temp sens sig
X115
X150

Manual A/C Wiring Diagram (1 of 4) for Chevrolet Impala LT 2014

List of elements for Manual A/C Wiring Diagram (1 of 4) for Chevrolet Impala LT 2014:

(base of left "a' pillar) g203
Air inlet door motor (front right center of hvac assembly)
Air inlet dr stepper mtr ctrl
Air temperature door actuator (left side of hvac module)
Battery positive voltage
Blower mtr spd ctrl
Computer data lines system
Defogger system
Display fuse 15a
Distribution
Ele variable displacement ctrl
Ele variable displacement sply
Evap core temp sens sig
Frt/hvac fuse 40a
Gnd
Hot at all times
Hot w/ ignition main relay energized
Hvac control module
Hvac/cntrl fuse 10a
Instrument panel fuse block (right kick panel)
Ip ign fuse 5a
J207
J209
J216 (hvac assembly harness, between the breakout to the hvac control module & evaporator temperature sensor)
Linear interconnect network bus 9
Low speed gmlan serial data
Mode dr stepper motor ctrl
Power
Rear defog rly ctrl
Run/crank ignition 1 volt
Sens low ref
System
Temp dr stepper motor ctrl
Underhood fuse block (right side of engine compt)
X115
X210

Manual A/C Wiring Diagram (2 of 4) for Chevrolet Impala LT 2014

List of elements for Manual A/C Wiring Diagram (2 of 4) for Chevrolet Impala LT 2014:

(forward lamp harness, 5.8 cm from breakout to washer fluid container) j150
87a
A/c
A/c compressor (lower left front of engine)
A/c compressor clutch
A/c compressor solenoid valve
Ac clutch fuse 10a
Blower motor (under right side of dash)
Compressor clutch relay
Cool fan hi fuse 40a
Cool fan lo fuse 40a
Cooling fan high speed relay
Cooling fan low speed relay
Cooling fan speed control relay
Engine controls ignition relay
Fan rly a fuse 10a
G101 (center front engine compt)
G122 (rear center engine compt)
G302 (right front "a" pillar)
Ground
Hot at all times
J101
J120
Logic
Mode door actuator (mounted to left of hvac assembly)
Nca
Red
Spd ctrl blwr mtr
Underhood fuse block (right side of engine compt)
Volt batt pos

Manual A/C Wiring Diagram (3 of 4) for Chevrolet Impala LT 2014

List of elements for Manual A/C Wiring Diagram (3 of 4) for Chevrolet Impala LT 2014:

(on a/c line, under air cleaner) a/c refrigerant pressure sensor
A/c evaporator temperature sensor (left side of hvac module)
Battery fuse block
Computer data lines system
Data
Driver information center display
Ecm fuse 25a
Engine coolant temperature gauge
Fuse 250a
Hot at all times
Hot w/ engine controls ignition relay energized
Instrument cluster
Logic
Red
Right cooling fan motor (behind left side of radiator)
Underhood fuse block (right side of engine compt)
X116
X117
X150

Manual A/C Wiring Diagram (4 of 4) for Chevrolet Impala LT 2014

List of elements for Manual A/C Wiring Diagram (4 of 4) for Chevrolet Impala LT 2014:

(inside air cleaner assembly) engine control module (ecm)
(rear top of engine) engine coolant temperature sensor
5v volt ref
A/c ind
A/c low ref
A/c press sens sig
A/c switch
Auto ind
Auto switch
Blower switch
Bus 9 serial data gnd
Cmprsr clutch rly ctrl
Computer data lines system
Cooling fan relay ctrl hi spd
Cooling fan relay ctrl lo spd
Defrost & lower air outlet ind
Defrost & lower air outlet switch
G106 (center engine compt on frame rail)
G121 (rear center engine compt)
G203 (base of left "a" pillar)
Gmlan serial data (+)
Gmlan serial data (-)
Hvac controls
J121
J209
Left cooling fan motor (behind left side of radiator)
Logic
Lower air outlet ind
Lower air outlet switch
Main rly fuse sply
Recirculation ind
Recirculation switch
Sens lo ref
Sens sig eng coolant temp
Sig gnd
Temperature control switch
Temperature ind
Temperature switch
Upper & lower air outlet ind
Upper & lower air outlet switch
Upper air outlet ind
Upper air outlet switch
Windshield defrost ind
Windshield defrost switch
X115
X116

AIR CONDITIONING – Chevrolet Impala LT 2014 – SYSTEM WIRING DIAGRAMS