Wiring Diagram Cluster

1987 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

422

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 1987 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.

1987 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 HVAC > Less HVAC ProgrammerGeneralOpen2.Electrical Diagrams > Heating and Air Conditioning > Compressor HVAC > W/HVAC ProgrammerGeneralOpen3.Compressor HVAC β€” Diagram Information and InstructionsHeating and Air ConditioningOpen4.Compressor HVAC β€” Electrical Diagrams > Less HVAC ProgrammerHeating and Air ConditioningOpen5.Compressor HVAC β€” Electrical Diagrams > W/HVAC ProgrammerHeating and Air ConditioningOpen6.Compressor HVAC β€” Exploded ViewsHeating and Air ConditioningOpen7.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Less HVAC ProgrammerGeneralOpen8.Electrical Diagrams > Heating and Air Conditioning > System Diagram > With HVAC ProgrammerGeneralOpen9.Exploded Views > Compressor HVACGeneralOpen10.Electrical Diagrams > Less HVAC ProgrammerHeating and Air ConditioningOpen11.Electrical Diagrams > With HVAC ProgrammerHeating and Air ConditioningOpen12.Electrical Diagrams > Heating and Air Conditioning > Blower Motor > (Part 1 of 2)GeneralOpen13.Electrical Diagrams > Heating and Air Conditioning > Blower Motor > (Part 2 of 2)GeneralOpen14.Vacuum and Vapor Hose Diagrams > Heating and Air ConditioningGeneralOpen15.Radio, Stereo, and Compact Disc β€” Diagram Information and InstructionsAccessories and Optional EquipmentOpen16.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > ETR Stereo & Electronic ClockAccessories and Optional EquipmentOpen17.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > Remote Cassette Tape PlayerAccessories and Optional EquipmentOpen18.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > With Delco Bose System > Less Cellular PhoneAccessories and Optional EquipmentOpen19.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > With Delco Bose System > With Cellular PhoneAccessories and Optional EquipmentOpen20.Vacuum and Vapor Hose DiagramsHeating and Air ConditioningOpen21.Backup Lamp β€” Diagram Information and InstructionsLighting and HornsOpen22.Backup Lamp β€” Electrical DiagramsLighting and HornsOpen23.Components > Miscellaneous Components > Electronic Level Control CompressorGeneralOpen24.Components > Miscellaneous Components > Electronic Vacuum Regulator ValveGeneralOpen25.Components > Miscellaneous Components > Vacuum Delay Porous PlugGeneralOpen26.Components > Miscellaneous Components > Vacuum Release ValveGeneralOpen27.Components > Miscellaneous Components > Vacuum TankGeneralOpen28.Components > Miscellaneous Components > Wiper/Washer CapacitorGeneralOpen29.Components > Motors > Air Inlet Door Vacuum MotorGeneralOpen30.Components > Motors > Blower MotorGeneralOpen31.Components > Motors > Defogger Door Vacuum MotorGeneralOpen32.Components > Motors > Mode Door Vacuum MotorGeneralOpen33.Components > Sensors > A/C High Side Temperature SensorGeneralOpen34.Components > Sensors > A/C Low Side Temperature SensorGeneralOpen35.Components > Switches > A/C Low Pressure SwitchGeneralOpen36.Components > Switches > A/C Pressure SwitchGeneralOpen37.Components > Switches > Console Accessory Switch ModuleGeneralOpen38.Electrical Diagrams > Accessory Delay ModuleGeneralOpen39.Electrical Diagrams > Lighting and Horns > Backup LampGeneralOpen40.Electrical Diagrams > Powertrain Management > System Diagram > Torque Converter Clutch, Emissions & A/C ControlsGeneralOpen41.Electrical Diagrams > Radio, Stereo, and Compact Disc > ETR Stereo & Electronic ClockGeneralOpen42.Electrical Diagrams > Radio, Stereo, and Compact Disc > Remote Cassette Tape PlayerGeneralOpen43.Electrical Diagrams > Radio, Stereo, and Compact Disc > With Delco Bose System > Less Cellular PhoneGeneralOpen44.Electrical Diagrams > Radio, Stereo, and Compact Disc > With Delco Bose System > With Cellular PhoneGeneralOpen45.Electrical Diagrams > Torque Converter Clutch, Emissions & A/C ControlsPowertrain ManagementOpen46.Emission Control Systems β€” Vacuum and Vapor Hose Diagrams > Figure 21 W/V6-231 (3.8L) SFI, (Vin 3)Powertrain ManagementOpen47.Emission Control Systems β€” Vacuum and Vapor Hose Diagrams > Figure 22 V6-231 (3.8L) Turbo SFI. (Vin 7)Powertrain ManagementOpen48.Vacuum and Vapor Hose Diagrams > Cruise Control > Part 1 of 3GeneralOpen