AIR CONDITIONING – Buick Terraza CXL 2007 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Compressor Wiring Diagram for Buick Terraza CXL 2007

List of elements for Compressor Wiring Diagram for Buick Terraza CXL 2007:

• 5v ref 1
• A/c cltch fuse 6 10a
• A/c cltch relay
• A/c compressor clutch (part of a/c compressor, behind a/c compressor pulley)
• A/c refrigerant pressure sensor (on high pressure hose, near high pressure hose connection to a/c compressor)
• A/c req
• A/c request
• A/c request ind ctrl
• A/c request switch
• Class 2 data
• Computer data lines system
• Diode 3
• Engine control module (ecm) (in air cleaner assembly)
• G115 (at engine to transmission stud nearest starter, below g113)
• Hot at all times
• Hot w/ ign main relay energized
• Hvac control module (in dash center trim panel, beneath radio)
• Ign
• Ind
• Logic
• Low ref
• Rly ctrl
• Sens sig
• Underhood fuse block (in underhood compt, above right front wheel well)

Manual A/C Wiring Diagram (1 of 2) for Buick Terraza CXL 2007

List of elements for Manual A/C Wiring Diagram (1 of 2) for Buick Terraza CXL 2007:

• (below right side of dash, in front hvac module) blower motor resistor assembly
• (in dash center trim panel, beneath radio) hvac control module
• (in dash harness, main bundle, 9 cm from breakout for app sensor toward left side of dash) s255
• (in dash harness, main bundle, 9 cm from breakout for vent & floor actuator toward right side of dash)
• 5 volt ref
• 5v ref
• A/c request
• A/c request ind
• A/c request ind ctrl
• A/c request switch
• Aux
• Aux blwr motor switch
• Aux fan speed select
• Aux mode dr ctrl
• Aux temp select
• B b
• Batt
• Blower motor (below right side of dash, in front hvac module)
• Blower motor relay
• Blower mtr hi ctrl
• Class 2 data
• Class 2 serial data
• Clstr/ hvac fuse 8 10a
• Commom dr ctrl
• Computer data lines system
• Ctrl sig
• Defogger control ind
• Defogger ctrl ind
• Defogger request
• Defogger switch
• Defrost actuator (behind center of dash, on left side of front hvac module)
• Defrost dr ctrl
• Digital video disc (dvd) player (if equipped)
• Dr ctrl
• Dr seat htr high request
• Dr seat htr low request
• Driver heated seat switch
• Driver high ind
• Driver low ind
• Evaporative temperature sensor (in front hvac module, mounted to evaporator core)
• Fan speed switch
• Front blower motor switch
• Front passenger heated seat switch
• Frt blwr hi fuse 34 40a
• G200 (on right side of dash support beam, above dash compt)
• Ground
• High
• Hot at all times
• Hot w/ ign main relay energized
• Hvac/ rpa/ cruise fuse 17 10a
• I/p fuse block (right side of dash, behind access panel)
• Ign
• Ign 1
• Interior lights system
• Lo ref
• Logic
• Low
• Low ref
• Mode sig
• Mode switch
• Motor ctrl
• Motor off req hvac aux cntrl
• Off
• Pass seat htr high request
• Pass seat htr low request
• Passenger high ind
• Passenger low ind
• Passenger temperature control switch (w/ auxiliary a/c)
• Pnk
• Rec dr ctrl
• Recirculation actuator (above blower motor, on right side of front hvac module)
• Red
• Rh air temp dr ctrl
• S246 (in dash harness, 12.5 cm from breakout for recirculation actuator toward left side of dash)
• S253
• S271 (in dash harness behind radio, 20 cm from main bundle toward right side of dash)
• Sens sig
• Speed 1 req
• Speed 3 req speed 2 req
• Speed ctrl
• Speed sig
• Supp volt
• Tan
• Temperature control switch (w/ front a/c) driver temperature control switch (w/ auxiliary a/c)
• Temperature select switch
• Underhood fuse block (in underhood compt, above right front wheel well)
• Vent & floor actuator (behind center of dash, on left side of front hvac module)
• Vent & floor dr ctrl

Manual A/C Wiring Diagram (2 of 2) for Buick Terraza CXL 2007

List of elements for Manual A/C Wiring Diagram (2 of 2) for Buick Terraza CXL 2007:

• (at engine to transmission stud nearest starter, below g113) g115
• (in forward lamp harness, 6 cm from breakout for c104 toward c110)
• (right side of engine compt on upper front of radiator support)
• 5v ref 1
• A/c cltch fuse 6 10a
• A/c cltch relay
• A/c compressor clutch (part of a/c compressor, behind a/c compressor pulley)
• A/c off for engine protection engine coolant hot
• A/c refrigerant pressure sensor (on high pressure hose, near high pressure hose connection to a/c compressor)
• Air temperature actuator (w/ front a/c) left air temperature actuator (w/ auxiliary a/c) (behind center of dash)
• Aux blwr motor speed ctrl
• Aux blwr motor speed sig
• Auxiliary air temperature actuator (w/ rear a/c) (behind left rear interior body panel)
• Auxiliary blower motor (w/ rear a/c) (behind left rear interior body panel)
• Auxiliary blower motor control module (w/ rear a/c) (in rear hvac module, behind left rear interior body panel)
• Auxiliary mode actuator (w/ rear a/c) (in rear hvac module, behind left rear interior body panel)
• Blwr motor speed ctrl
• Body control module (bcm) (below left side of dash, left of steering column)
• Class 2
• Class 2 data
• Class 2 serial data
• Computer data lines system
• Ctrl
• Diode 3
• Ect sensor
• Engine control module (ecm) (in air cleaner assembly)
• Engine coolant temperature (ect) sensor (top rear of engine)
• Fan 1 fuse 29 30a
• Fan 1 relay
• Fan 2 fuse 33 40a
• Fan 2 relay
• Fan 3 relay
• Frt/ blwr fuse 27 25a
• G100
• G401 (on lower left "d" pillar)
• Ground
• Hot at all times
• Hot coolant ind
• Hot w/ ign main relay energized
• Instrument panel cluster (ipc)
• Left cooling fan (behind left side of radiator)
• Logic
• Low ref
• Message center
• Pnk
• Red
• Right air temperature actuator (w/ auxiliary a/c) (right side hvac module)
• Right cooling fan (behind right side of radiator)
• Rly ctrl
• Rr blwr/ 110vac fuse 26 25a
• Run rly
• Run rly relay
• S102 (in forward lamp harness, 6.5 cm from breakout for g100, toward c110)
• S106
• S413 (in body harness, 6.5 cm from breakout for c479 toward left "c" pillar)
• Sens sig
• Serial data c1
• Tan
• Underhood fuse block (in underhood compt, above right front wheel well)