Wiring Diagram Cluster

1985 Pontiac Firebird A/C & Heater Wiring Diagram

Find A/C compressor clutch wiring, blower motor circuits, temperature control module paths, and refrigerant pressure switch schematics.

Matched Diagrams

48

Variant Used

Firebird L4-151 2.5L

Total Vehicle Diagrams

361

From Diagram To Fix

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Vehicle Repair Hub

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OEM source

Factory Manual Evidence

When there is no clean repair shortcut for this system, drop into the OEM manual sections that usually carry the authoritative test path.

1985 Pontiac Firebird A L L Diagnostic Trouble Codes ( DTC ) β†’

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More System Pages for This Vehicle

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Starter Wiring Diagram β†’

Top A/C & Heater Diagram Paths

1.Electrical Diagrams > Heating and Air Conditioning > Compressor HVAC > A/C Wiring Diagram (Compressor Controls) - Less Electronic A/CGeneralOpen2.Electrical Diagrams > Heating and Air Conditioning > Compressor HVAC > With Electronic A/CGeneralOpen3.Compressor HVAC β€” Electrical Diagrams > A/C Wiring Diagram (Compressor Controls) - Less Electronic A/CHeating and Air ConditioningOpen4.Compressor HVAC β€” Electrical Diagrams > With Electronic A/CHeating and Air ConditioningOpen5.Compressor HVAC β€” Diagram Information and InstructionsHeating and Air ConditioningOpen6.Compressor HVAC β€” Exploded ViewsHeating and Air ConditioningOpen7.Components > Motors > A/C Defrost Vacuum MotorGeneralOpen8.Electrical Diagrams > Heating and Air Conditioning > Blower Motor > Less Electronic A/CGeneralOpen9.Electrical Diagrams > Heating and Air Conditioning > Blower Motor > With Electronic A/C (Part 1 of 2)GeneralOpen10.Electrical Diagrams > Heating and Air Conditioning > Blower Motor > With Electronic A/C (Part 2 of 2)GeneralOpen11.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Blower Controls > Less Electronic A/CGeneralOpen12.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Blower Controls > With Electronic A/C > Part 1 of 2GeneralOpen13.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Blower Controls > With Electronic A/C > Part 2 of 2GeneralOpen14.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Compressor Controls > Less Electronic A/CGeneralOpen15.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Compressor Controls > With Electronic A/CGeneralOpen16.Exploded Views > Compressor HVACGeneralOpen17.Vacuum and Vapor Hose Diagrams > Heating and Air Conditioning > Less Electronic A/CGeneralOpen18.Vacuum and Vapor Hose Diagrams > Heating and Air Conditioning > With Electronic A/C (Part 1 of 2)GeneralOpen19.Vacuum and Vapor Hose Diagrams > Heating and Air Conditioning > With Electronic A/C (Part 2 of 2)GeneralOpen20.Electrical Diagrams > Blower Controls > Less Electronic A/CHeating and Air ConditioningOpen21.Electrical Diagrams > Blower Controls > With Electronic A/C > Part 1 of 2Heating and Air ConditioningOpen22.Electrical Diagrams > Blower Controls > With Electronic A/C > Part 2 of 2Heating and Air ConditioningOpen23.Electrical Diagrams > Compressor Controls > Less Electronic A/CHeating and Air ConditioningOpen24.Electrical Diagrams > Compressor Controls > With Electronic A/CHeating and Air ConditioningOpen25.Vacuum and Vapor Hose Diagrams > Less Electronic A/CHeating and Air ConditioningOpen26.Vacuum and Vapor Hose Diagrams > With Electronic A/C (Part 1 of 2)Heating and Air ConditioningOpen27.Vacuum and Vapor Hose Diagrams > With Electronic A/C (Part 2 of 2)Heating and Air ConditioningOpen28.Components > Miscellaneous Components > A/C Compressor ClutchGeneralOpen29.Components > Miscellaneous Components > A/C Compressor Clutch DiodeGeneralOpen30.Components > Modules > A/C Vacuum Solenoid ModuleGeneralOpen31.Components > Motors > Heat-Defrost Vacuum MotorGeneralOpen32.Components > Relays > A/C Compressor Control RelayGeneralOpen33.Radio, Stereo, and Compact Disc β€” Diagram Information and InstructionsAccessories and Optional EquipmentOpen34.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > With Mono SystemAccessories and Optional EquipmentOpen35.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > With Stereo SystemAccessories and Optional EquipmentOpen36.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > With Sub-Woofer & AmplifierAccessories and Optional EquipmentOpen37.Backup Lamp β€” Diagram Information and InstructionsLighting and HornsOpen38.Backup Lamp β€” Electrical DiagramsLighting and HornsOpen39.Components > Miscellaneous Components > Blower ResistorsGeneralOpen40.Components > Miscellaneous Components > Expansion Tube, A/CGeneralOpen41.Components > Miscellaneous Components > LH ActuatorGeneralOpen42.Components > Miscellaneous Components > Radio CapacitorGeneralOpen43.Components > Miscellaneous Components > RH ActuatorGeneralOpen44.Components > Miscellaneous Components > Vacuum Release ValveGeneralOpen45.Components > Motors > A/C Temperature Door MotorGeneralOpen46.Components > Motors > Blower MotorGeneralOpen47.Components > Motors > Forward-Back MotorGeneralOpen48.Components > Motors > Lower Mode Vacuum MotorGeneralOpen