Wiring Diagram Cluster

1987 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 V6-173 2.8L

Total Vehicle Diagrams

439

From Diagram To Fix

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Open the exact diagram, then move directly into the vehicle hub, the repair most likely tied to this system, or the code cluster that usually shows up with it.

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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.

1987 Pontiac Firebird A L L Diagnostic Trouble Codes ( DTC ) β†’

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More System Pages for This Vehicle

Move laterally into the neighboring systems that usually share the same electrical neighborhood.

Starter Wiring Diagram β†’

Top A/C & Heater Diagram Paths

1.Electrical Diagrams > Heating and Air Conditioning > Compressor HVACGeneralOpen2.Compressor HVAC β€” Diagram Information and InstructionsHeating and Air ConditioningOpen3.Compressor HVAC β€” Electrical DiagramsHeating and Air ConditioningOpen4.Compressor HVAC β€” Exploded ViewsHeating and Air ConditioningOpen5.Components > Miscellaneous Components > A/C Heater Vacuum ActuatorGeneralOpen6.Components > Motors > A/C Defrost Vacuum MotorGeneralOpen7.Exploded Views > Compressor HVACGeneralOpen8.Electrical Diagrams > Air Conditioning: Blower ControlsHeating and Air ConditioningOpen9.Electrical Diagrams > Air Conditioning: Compressor ControlsHeating and Air ConditioningOpen10.Components > Miscellaneous Components > A/C Compressor ClutchGeneralOpen11.Components > Miscellaneous Components > A/C Compressor Clutch DiodeGeneralOpen12.Components > Modules > A/C Vacuum Solenoid ModuleGeneralOpen13.Components > Motors > Heat-Defrost Vacuum MotorGeneralOpen14.Components > Relays > A/C Compressor Control RelayGeneralOpen15.Electrical Diagrams > Heating and Air Conditioning > Blower Motor > (Part 1 of 2)GeneralOpen16.Electrical Diagrams > Heating and Air Conditioning > Blower Motor > (Part 2 of 2)GeneralOpen17.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Air Conditioning: Blower ControlsGeneralOpen18.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Air Conditioning: Compressor ControlsGeneralOpen19.Vacuum and Vapor Hose Diagrams > Heating and Air ConditioningGeneralOpen20.Electrical Diagrams > Air Conditioning: Air DeliveryHeating and Air ConditioningOpen21.Radio, Stereo, and Compact Disc β€” Diagram Information and InstructionsAccessories and Optional EquipmentOpen22.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > Less Subwoofer AmplifierAccessories and Optional EquipmentOpen23.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > With Subwoofer AmplifierAccessories and Optional EquipmentOpen24.Vacuum and Vapor Hose DiagramsHeating and Air ConditioningOpen25.Backup Lamp β€” Diagram Information and InstructionsLighting and HornsOpen26.Backup Lamp β€” Electrical Diagrams > Except Trans AmLighting and HornsOpen27.Backup Lamp β€” Electrical Diagrams > Trans AmLighting and HornsOpen28.Components > Miscellaneous Components > AccumulatorGeneralOpen29.Components > Miscellaneous Components > Blower ResistorsGeneralOpen30.Components > Miscellaneous Components > Choke HeaterGeneralOpen31.Components > Miscellaneous Components > Electronic Vacuum Regulator ValveGeneralOpen32.Components > Miscellaneous Components > Expansion Tube, A/CGeneralOpen33.Components > Miscellaneous Components > Radio CapacitorGeneralOpen34.Components > Miscellaneous Components > Vacuum Release ValveGeneralOpen35.Components > Miscellaneous Components > Vacuum Tank > Less Cruise ControlGeneralOpen36.Components > Miscellaneous Components > Vacuum Tank > With Cruise ControlGeneralOpen37.Components > Motors > A/C Temperature Door MotorGeneralOpen38.Components > Motors > Blower MotorGeneralOpen39.Components > Motors > Lower Mode Vacuum MotorGeneralOpen40.Components > Motors > Recirculating Outside Air Vacuum Motor > Electronic ModelsGeneralOpen41.Components > Motors > Recirculating Outside Air Vacuum Motor > Manual ModelsGeneralOpen42.Components > Motors > Upper Mode Vacuum MotorGeneralOpen43.Components > Relays > Blower High Speed RelayGeneralOpen44.Components > Relays > Low Blower RelayGeneralOpen45.Components > Sensors > Vacuum SensorGeneralOpen46.Components > Switches > A/C High Pressure Cut-Out SwitchGeneralOpen47.Components > Switches > Back-Up Lights SwitchGeneralOpen48.Components > Switches > Blower SwitchGeneralOpen