Wiring Diagram Cluster

1986 Buick Riviera 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

Riviera V6-231 3.8L

Total Vehicle Diagrams

349

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

Step out of raw diagrams and into the full 1986 Buick Riviera hub with repairs, specs, codes, and other systems already tied to this car.

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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.

1986 Buick Riviera Diagnostic Trouble Codes 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.Electrical Diagrams > Heating and Air Conditioning > Control Assembly, HVACGeneralOpen6.Exploded Views > Compressor HVACGeneralOpen7.Electrical Diagrams > Heating and Air Conditioning > Blower MotorGeneralOpen8.Electrical Diagrams > Heating and Air Conditioning > System Diagram > A/C Sensor Wiring CircuitGeneralOpen9.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Blower ControlsGeneralOpen10.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Compressor ControlsGeneralOpen11.Vacuum and Vapor Hose Diagrams > Heating and Air ConditioningGeneralOpen12.Electrical Diagrams > A/C Sensor Wiring CircuitHeating and Air ConditioningOpen13.Electrical Diagrams > Blower ControlsHeating and Air ConditioningOpen14.Electrical Diagrams > Compressor ControlsHeating and Air ConditioningOpen15.Radio, Stereo, and Compact Disc β€” Diagram Information and InstructionsAccessories and Optional EquipmentOpen16.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > Radio Remote Tape PlayerAccessories and Optional EquipmentOpen17.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > Tape PlayerAccessories and Optional EquipmentOpen18.Vacuum and Vapor Hose DiagramsHeating and Air ConditioningOpen19.Backup Lamp β€” Diagram Information and InstructionsLighting and HornsOpen20.Backup Lamp β€” Electrical DiagramsLighting and HornsOpen21.Components > Miscellaneous Components > Electronic Level Control CompressorGeneralOpen22.Components > Miscellaneous Components > Electronic Vacuum Regulator ValveGeneralOpen23.Components > Miscellaneous Components > Vacuum Delay Porous PlugGeneralOpen24.Components > Miscellaneous Components > Vacuum Release ValveGeneralOpen25.Components > Miscellaneous Components > Vacuum TankGeneralOpen26.Components > Miscellaneous Components > Wiper/Washer CapacitorGeneralOpen27.Components > Motors > Air Inlet Door Vacuum MotorGeneralOpen28.Components > Motors > Blower MotorGeneralOpen29.Components > Motors > Defogger Door Vacuum MotorGeneralOpen30.Components > Motors > Mode Door Vacuum MotorGeneralOpen31.Components > Sensors > A/C High Side Temperature SensorGeneralOpen32.Components > Sensors > A/C Low Side Temperature SensorGeneralOpen33.Components > Switches > A/C Low Pressure SwitchGeneralOpen34.Components > Switches > A/C Pressure SwitchGeneralOpen35.Components > Switches > Console Accessory Switch ModuleGeneralOpen36.Electrical Diagrams > Accessory Delay ModuleGeneralOpen37.Electrical Diagrams > Lighting and Horns > Backup LampGeneralOpen38.Electrical Diagrams > Powertrain Controls > A/C Controls, Emission Controls & Torque Converter Clutch TurboPowertrain ManagementOpen39.Electrical Diagrams > Powertrain Management > System Diagram > Powertrain Controls > A/C Controls, Emission Controls & Torque Converter Clutch TurboGeneralOpen40.Electrical Diagrams > Radio, Stereo, and Compact Disc > Radio Remote Tape PlayerGeneralOpen41.Electrical Diagrams > Radio, Stereo, and Compact Disc > Tape PlayerGeneralOpen42.Emission Control Systems β€” Vacuum and Vapor Hose Diagrams > CarburetedPowertrain ManagementOpen43.Emission Control Systems β€” Vacuum and Vapor Hose Diagrams > Fuel InjectedPowertrain ManagementOpen44.Vacuum and Vapor Hose Diagrams > Cruise Control > Part 1 of 2GeneralOpen45.Vacuum and Vapor Hose Diagrams > Cruise Control > Part 2 of 2GeneralOpen46.Vacuum and Vapor Hose Diagrams > Emission Control Systems > CarburetedGeneralOpen47.Vacuum and Vapor Hose Diagrams > Emission Control Systems > Fuel InjectedGeneralOpen48.Antenna β€” Diagram Information and InstructionsAccessories and Optional EquipmentOpen