AIR CONDITIONING – Pontiac Sunfire 2003 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Compressor Wiring Diagram for Pontiac Sunfire 2003

List of elements for Compressor Wiring Diagram for Pontiac Sunfire 2003:

• (engine harn, 13 cm from cooling fan conn breakout) pnk
• (left front of engine compt)
• 5 volt ref
• A/c comp clutch rly
• A/c compressor clutch
• A/c compressor clutch diode (in a/c compressor clutch connector breakout)
• A/c compressor clutch relay
• A/c fuse 10a
• A/c press sens sig
• A/c refrigerant pressure sensor (right front corner of engine compt, on a/c refrigerant line)
• A20
• A22
• B20
• B22
• Compressor clutch conn)
• Erls fuse 10a
• G112 (on rear of engine)
• Hot at all times
• Hot in run, bulb test or start
• I/p fuse block (behind lower left side of dash)
• Low ref
• Pnk
• Powertrain control module (pcm) (on right rear of engine compartment)
• S107
• S110 (engine harn, near a/c compressor clutch conn)
• Underhood fuse block

Manual A/C Wiring Diagram for Pontiac Sunfire 2003

List of elements for Manual A/C Wiring Diagram for Pontiac Sunfire 2003:

• (dash harn, 39 cm from c207)
• (engine harn, 13 cm from
• (from hvac fuse diagram 1 of 1)
• (left front of eng compt)
• (left front of engine compt)
• (to heater blower relay, diagram 1 of 1)
• 5 volt ref
• A/c comp clutch relay
• A/c comp on
• A/c compressor clutch
• A/c compressor clutch diode (in a/c compressor clutch connector breakout)
• A/c compressor clutch relay
• A/c disable
• A/c fuse 10a
• A/c on req
• A/c press sensor sig cooling fan rly ctrl
• A/c refrigerant pressure sensor (right front corner of engine compt, on a/c refrigerant line)
• A/c req
• A/c req sig
• A/c request
• A10
• A12
• A20
• A22
• B10
• B12
• B20
• B22
• Bi-lvl
• Blo fuse 30a
• Blower motor (under center of dash, in hvac assembly)
• Blower motor resistor assembly (under center of dash, on blower motor assembly)
• Blower mtr off
• Blower switch
• Body control control (bcm) (behind lower left side of dash)
• C 1995 vftc
• Class 2 serial data
• Compressor clutch conn)
• Cooling fan
• Cooling fan fuse 30a
• Cooling fan relay
• Def
• Defogger system
• Ect sensor signal
• Engine coolant temperature (ect) sensor (on top right rear of engine)
• Erls fuse 10a
• F c3
• G112 (on rear of engine)
• G204 (on steering column support bracket)
• Gnd
• H c3
• Heat
• Heat/def
• Heater blower relay
• High
• Hot at all times
• Hot in run
• Hot in run, bulb test or start
• Hvac control assembly
• Hvac fuse 10a
• I/p fuse block (behind lower left side of dash)
• Ign 3 voltage
• Interior lights system
• Logic
• Low
• Low ref
• Max
• Mode switch
• Off
• On ind
• Pnk
• Powertrain control module (pcm) (on right rear of engine compartment)
• Rec dr cntrl
• Rec dr pos sig
• Recirc- ulation door actuator (behind upper right side of i/p)
• Red
• S101 (engine harn, at left side of dash, 7 cm from cooling fan connector)
• S107 pnk cooling fan conn breakout)
• S110 (engine harn, near a/c compressor clutch conn)
• S205
• Tan
• Underhood fuse block
• Undrhood fuse block (left front of eng compt)
• Vent