AIR CONDITIONING – Cadillac CTS 2008 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Cadillac CTS 2008

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Cadillac CTS 2008:

• (behind left kick panel) g200
• (behind right kick panel) g201
• (in hvac assembly harness, near driver air temperature actuator)
• (in hvac assembly harness, near mode actuator)
• (in i/p harness, near hazard switch connector)
• 5-volt ref 3
• Auto switch
• Batt pos volt
• Blower motor (on right side of hvac module)
• Blower motor control module (on lower left side of blower motor)
• Blower motor switch
• Blwr fuse 40a
• Blwr mtr spd ctrl
• Blwr mtr sply volt
• Body control module (bcm)
• Computer data lines system
• Defogger system
• Disply fuse 15a
• Dr ctrl circuit
• Dr pos sig
• Drv sens sig
• Evaporator temperature sensor (on right side of evaporator case)
• Gnd
• Hot at all times
• Hvac control module (behind center of dash, below radio)
• Ign 3 volt
• J201
• J202
• J225
• J230
• J265 (in i/p harness, near branch for front center speaker)
• Left air temperature actuator (on hvac module)
• Left air temperature switch
• Lo dr pos sig
• Lo ref
• Lo spd gmlan
• Logic logic
• Low ref
• Mode actuator (on left side of hvac module)
• Mode dr ctrl
• Mode switch
• Pass sens sig
• Power distribution system
• Rec dr ctrl
• Rec dr pos sig
• Recirculation actuator (left side of blower motor)
• Recirculation switch
• Right air temp
• Right air temperature actuator (on hvac module)
• Right air temperature switch
• Rly ctrl
• Sens sig
• Spd ctrl
• Tan
• Temp dr ctrl
• Underhood fuse block (right front of engine compt)

Automatic A/C Wiring Diagram (2 of 2) for Cadillac CTS 2008

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Cadillac CTS 2008:

• 5-volt ref 3
• 87a
• A/c cltch fuse 10a
• A/c cmprsr clutch relay
• A/c compressor clutch (3.6l (vin 7): lower left front of engine)
• A/c compressor clutch rly ctrl
• A/c refrigerant press sens sig
• A/c refrigerant pressure sensor (near left front strut tower, on a/c refrigerant line)
• After boil heater rly ctrl
• After boil relay (3.6l (vin v))
• Ambient air temperature sensor (under front bumper, near front grille)
• Auxiliary coolant pump (3.6l (vin v))
• Computer data lines system
• Drl/ eng pump fuse 10a
• Ect sens sig
• Emis 2 fuse 15a
• Engine control module (ecm) (3.6l (vin 7): on front right valve cover)
• Engine coolant temperature (ect) sensor (side of left cylinder head)
• Fan 1 fuse 30a
• Fan 1 relay
• Fan 2 fuse 30a
• Fan 2 relay
• Fan s/p relay
• G101 (near left front strut tower)
• G104 (on right body rail, near right headlight)
• G132 (top right of engine)
• Hi spd cooling fan rly ctrl
• Hi spd gmlan serial data bus+
• Hot at all times
• Hot w/ pwr/ trn relay energized
• Inside air temperature sensor (behind dash, left of radio)
• Jx201 (in body harness, near left front inflatable restraint side impact sensor)
• Left engine cooling fan (left side of radiator)
• Lo ref
• Lo spd cooling fan rly ctrl
• Right engine cooling fan (right side of radiator)
• Sunload sensor (top center of i/p, on defrost grill)
• Tan
• Underhood fuse block (right front of engine compt)

Compressor Wiring Diagram for Cadillac CTS 2008

List of elements for Compressor Wiring Diagram for Cadillac CTS 2008:

• 5-volt ref 3
• A/c cltch fuse 10a
• A/c cmprsr clutch relay
• A/c compressor clutch (3.6l (vin 7): lower left front of engine)
• A/c refrigerant press sens sig
• A/c refrigerant pressure sens sig
• A/c refrigerant pressure sensor (near left front strut tower, on a/c refrigerant line)
• Computer data lines system
• Emis 2 fuse 15a
• Engine control module (ecm) (3.6l (vin 7): on front right valve cover)
• G132 (top right of engine)
• Hi spd gmlan serial data bus+
• Hot at all times
• Hot w/ pwr/ trn relay energized
• Lo ref
• Tan
• Underhood fuse block (right front of engine compt)