AIR CONDITIONING – Cadillac CTS 2009 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Cadillac CTS 2009

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Cadillac CTS 2009:

• (hvac assembly harness, near driver air temperature actuator)
• (hvac assembly harness, near mode actuator)
• (left kick panel) g200
• (right kick panel) g201
• 5-volt ref 3
• Auto switch
• Batt pos volt
• Blower motor (right side of hvac module)
• Blower motor control module (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
• Computer data lines system
• Data lines system
• Defogger system
• Disply fuse 15a
• Dr ctrl circuit
• Dr pos sig
• Drv sens sig
• Evaporator temperature sensor (right side of evaporator case)
• Gnd
• Hot at all times
• Hvac control module (center of dash)
• Ign 3 volt
• J201
• J202
• J225
• J230
• J265
• Left air temperature actuator (on hvac module)
• Left air temperature switch
• Lo dr pos sig
• Lo ref
• Lo spd gmlan
• Logic
• Low ref
• Mode actuator (left side of hvac module)
• Mode dr ctrl
• Mode switch
• Pass sens sig
• Pnk
• Power distribution system
• Radio/hvac control
• Rec dr ctrl
• Rec dr pos sig
• Recirculation actuator (left side of blower motor)
• Recirculation switch
• Red
• Right air temp
• Right air temperature actuator (on hvac module)
• Right air temperature switch
• Rly ctrl
• Sens sig
• Spd ctrl
• Temp dr ctrl
• Underhood fuse block (right front of engine compt)

Automatic A/C Wiring Diagram (2 of 2) for Cadillac CTS 2009

List of elements for Automatic A/C Wiring Diagram (2 of 2) for Cadillac CTS 2009:

• (3.6l)
• (6.2l)
• (or 2761)
• (or tan)
• 3.6l
• 5-volt ref 3 5-volt ref 1
• 6.2l
• 87a
• A/c cltch fuse 10a
• A/c cmprsr cltch relay
• A/c compressor clutch (lower left front of engine)
• A/c compressor clutch rly ctrl
• A/c refrigerant press sens sig
• A/c refrigerant pressure sensor (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
• Computer data lines system
• Drl/ eng pump fuse 10a
• Ect sens sig
• Emis 2 fuse 15a
• Engine control module (ecm) (front right valve cover)
• Engine coolant temperature (ect) sensor (side of left cylinder head)
• Engine cooling fan
• Fan 1 fuse (3.6l) 30a (6.2l) 40a
• Fan 1 relay (3.6l) fan 1 relay 33 (6.2l)
• Fan 2 fuse (3.6l) 30a (6.2l) 40a
• Fan 2 relay (3.6l) fan 2 relay 31 (6.2l)
• Fan s/p relay (3.6l) fan 3 relay 32 (6.2l)
• G101 (left front strut tower)
• G104 (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 (center of dash)
• Jx201 (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 dash)
• Tan
• Underhood fuse block (right front of engine compt)

Compressor Wiring Diagram for Cadillac CTS 2009

List of elements for Compressor Wiring Diagram for Cadillac CTS 2009:

• (3.6l) (6.2l)
• 3.6l
• 5-volt ref 3 5-volt ref 1
• 6.2l
• A/c cltch fuse 10a
• A/c cmprsr cltch relay
• A/c compressor clutch (lower left front of engine)
• A/c compressor clutch relay ctrl
• A/c refrigerant press sens sig
• A/c refrigerant pressure sensor (on a/c a/c refrigerant line)
• Computer data lines system
• Emis 2 fuse 15a
• Engine control module (ecm) (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)