AIR CONDITIONING – Cadillac SRX 2009 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 3) for Cadillac SRX 2009

List of elements for Automatic A/C Wiring Diagram (1 of 3) for Cadillac SRX 2009:

• (in hvac harness, 40 cm from x321) j217
• 5 volt reference
• A/c cltch
• A/c cmprsr clutch relay
• A/c refri low temp sens sig
• Air quality nox sen sig
• Air quality sens sig
• Air temp door posit sig
• Amb air temp sens sig
• Ambient light/ sunload sensor (center of dash)
• Battery pos vol
• Blower motor speed ctrl
• Blwr fuse 40a
• Body control module (bcm) (on lower left side of dash)
• Computer data lines system
• Defogger system
• Display fuse 10a
• Drv air temp door ctrl
• Drv sunload sens sig
• Emis 2 fuse 15a
• Fuse 10a
• G200 (behind left kick panel)
• Ground
• Hot at all times
• Hot w/ ign relay energized
• Hot w/ pwr/trn relay energized
• Hvac control module (center of dash, under radio)
• Ignition 3 voltage
• Ind dimming ctrl
• Inside air temp sens sig
• Interior lights system
• J204
• Led backlight dimming ctrl
• Lo mode door posit sig
• Low reference
• Low speed gmlan serial data
• Misc ign fuse 10a
• Mode door ctrl
• Nca
• Pass air temp door ctrl b
• Pass air temp posit sig
• Pass sunload sens sig
• Pnk
• Rear defog relay ctrl
• Recirc door ctrl circuit
• Recirc door posit sig
• Recirculation actuator (left of blower motor on hvac)
• Recirculation door ctrl
• Right air temp door ctrl
• Splice pack jx200 (under i/p, near base of steering column)
• Tan
• Underhood fuse block (right front of engine compt)

Automatic A/C Wiring Diagram (2 of 3) for Cadillac SRX 2009

List of elements for Automatic A/C Wiring Diagram (2 of 3) for Cadillac SRX 2009:

• (behind front grille, below hood latch) (w/ auto recirculating air filter) air quality sensor
• (in hvac harness, 45 cm from x321)
• (on top right side engine manifold block) (3.6l) g106
• A/c compressor clutch (left front of engine, on a/c compressor)
• Blower motor (right side of hvac)
• Blower motor control module (lower left side of blower motor)
• Blower mtr speed ctrl
• Evaporator temperature sensor (inside hvac module, at the evaporator core)
• G100 (4.6l) (on right rear of engine, on cylinder head)
• G104 (right body rail, behind washer reservoir)
• G201 (behind right kick panel)
• Ground
• Hot w/ run relay energized
• Inside air temperature sensor (below hvac control module)
• J218
• Left air temperature actuator (left center of hvac module, below mode actuator)
• Mode actuator (left side of hvac module)
• Nca
• Pnk
• Right air temperature actuator (right center of hvac case)
• Right rear fuse block (near right side of rear seat, under carpet)
• Run fuse 7.5a
• Speed ctrl
• Tan

Automatic A/C Wiring Diagram (3 of 3) for Cadillac SRX 2009

List of elements for Automatic A/C Wiring Diagram (3 of 3) for Cadillac SRX 2009:

• (in forward lamp harness, 3 cm from right cooling fan breakout)
• (left front frame rail) a/c refrigerant pressure sensor
• (right body rail, behind washer reservoir) g104
• 3.6l & 4.6l w/o trailer provisions
• 3.6l 4.6l
• 4.6l 3.6l
• 4.6l w/ trailer provisions
• 5v reference 3
• 87a
• A/c cmprsr
• A/c refrig press sensor
• Ambient air temperature sensor (front center of engine compt)
• Clutch relay ctrl
• Computer data lines system
• Ect sensor signal
• Emis 2 fuse 15a
• Engine control module (ecm) (3.6l: right side of engine) (4.6l: on left front frame rail)
• Engine coolant temperature (ect) sensor (3.6l: left cylinder head, near center cylinder) (4.6l: rear of right cylinder head)
• Engine cooling fan
• Engine cooling fan resistor
• Fan 1 fuse 30a
• Fan 1 relay
• Fan 2 fuse 30a
• Fan 2 relay
• G104 (right body rail, behind washer reservoir)
• High speed fan relay ctrl
• Hot at all times
• Hot w/ pwr/ trn relay energized
• J105
• Left cooling fan (behind radiator)
• Low ref
• Low reference
• Low speed fan relay ctrl
• Right cooling fan (behind radiator)
• S/p fan relay
• Serial data bus +
• Serial data bus -
• Tan
• Underhood fuse block (right front of engine compt)
• W/ auto recirculating air filter
• W/o auto recirculating air filter

Auxiliary Blower Wiring Diagram for Cadillac SRX 2009

List of elements for Auxiliary Blower Wiring Diagram for Cadillac SRX 2009:

• (in headliner harness, 31 cm from center courtesy/ reading lamp) j407
• (in headliner harness, 38 cm from courtesy/ reading lamp-center)
• (in left rear quarter panel area, on hvac case) auxiliary blower motor resistor assembly
• (rear of right rear shock tower on "d" pillar) g401
• Auxiliary blower motor (at left rear corner of cargo compt)
• Front auxiliary blower motor switch
• High
• Hot w/ ign relay energized
• Interior lights system
• J311
• J400
• J406 (in body harness, 8 cm from inflatable restraint roof rail module - right connector breakout)
• J408 (in headliner harness, 45 cm from center courtesy/ reading lamp)
• Low
• Med
• Med high
• Med low
• Off
• Rear
• Rear a/c fuse 30a
• Rear auxiliary blower motor switch
• Right rear fuse block (near right side of rear seat, under carpet)
• Tan

Compressor Wiring Diagram for Cadillac SRX 2009

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

• (on top right side engine manifold block) (3.6l) g106
• 4.6l 3.6l
• 5v reference
• A/c cltch fuse 10a
• A/c cmprsr
• A/c cmprsr clutch relay
• A/c compressor clutch (left front of engine, on a/c compressor)
• A/c refrig press sens sig
• A/c refrigerant pressure sensor (left front frame rail)
• Clutch relay ctrl
• Computer data lines system
• Emis 2 fuse 15a
• Engine control module (ecm) (4.6l: on left front frame rail) (3.6l: right side of engine)
• G100 (4.6l) (on right rear of engine, on cylinder head)
• Hot at all times
• Hot w/ pwr/trn relay energized
• Hvac control module (center of dash, under radio)
• Low reference
• Low speed gmlan serial data
• Nca
• Serial data bus +
• Serial data bus -
• Tan
• Underhood fuse block (right front of engine compt)