Wiring Diagram Cluster

1987 Buick Century 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

Century Estate Wagon L4-151 2.5L VIN R TBI

Total Vehicle Diagrams

446

From Diagram To Fix

Use this wiring page as the jump point, not the dead end

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 Century 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 Century 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 HVAC > (Part 1 of 2)GeneralOpen2.Electrical Diagrams > Heating and Air Conditioning > Compressor HVAC > (Part 2 of 2)GeneralOpen3.Compressor HVAC β€” Diagram Information and Instructions > Cell ReferencesHeating and Air ConditioningOpen4.Compressor HVAC β€” Diagram Information and Instructions > Schematic SymbolsHeating and Air ConditioningOpen5.Compressor HVAC β€” Diagram Information and Instructions > Symbol IdentificationHeating and Air ConditioningOpen6.Compressor HVAC β€” Diagram Information and Instructions > Wire Color Code IdentificationHeating and Air ConditioningOpen7.Compressor HVAC β€” Electrical Diagrams > (Part 1 of 2)Heating and Air ConditioningOpen8.Compressor HVAC β€” Electrical Diagrams > (Part 2 of 2)Heating and Air ConditioningOpen9.Compressor HVAC β€” Exploded Views > Delco Air R-4 Radial CompressorHeating and Air ConditioningOpen10.Compressor HVAC β€” Exploded Views > Delco Air/Harrison DA-V5 Variable Displacement CompressorHeating and Air ConditioningOpen11.Components > Motors > A/C Defrost Vacuum MotorGeneralOpen12.Components > Motors > A/C Heater Vacuum MotorGeneralOpen13.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Blower Controls - Electronic Climate ControlsGeneralOpen14.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Compressor Controls - Electronic Climate Controls > Part 1 of 2GeneralOpen15.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Compressor Controls - Electronic Climate Controls > Part 2 of 2GeneralOpen16.Exploded Views > Compressor HVAC > Delco Air R-4 Radial CompressorGeneralOpen17.Exploded Views > Compressor HVAC > Delco Air/Harrison DA-V5 Variable Displacement CompressorGeneralOpen18.Electrical Diagrams > Blower Controls - Electronic Climate ControlsHeating and Air ConditioningOpen19.Electrical Diagrams > Compressor Controls - Electronic Climate Controls > Part 1 of 2Heating and Air ConditioningOpen20.Electrical Diagrams > Compressor Controls - Electronic Climate Controls > Part 2 of 2Heating and Air ConditioningOpen21.Components > Miscellaneous Components > A/C Compressor Clutch DiodeGeneralOpen22.Components > Motors > Heater Water Valve Vacuum MotorGeneralOpen23.Components > Relays > A/C Compressor Control RelayGeneralOpen24.Electrical Diagrams > Heating and Air Conditioning > Blower MotorGeneralOpen25.Vacuum and Vapor Hose Diagrams > Heating and Air ConditioningGeneralOpen26.Radio, Stereo, and Compact Disc β€” Diagram Information and Instructions > Cell ReferencesAccessories and Optional EquipmentOpen27.Radio, Stereo, and Compact Disc β€” Diagram Information and Instructions > Schematic SymbolsAccessories and Optional EquipmentOpen28.Radio, Stereo, and Compact Disc β€” Diagram Information and Instructions > Symbol IdentificationAccessories and Optional EquipmentOpen29.Radio, Stereo, and Compact Disc β€” Diagram Information and Instructions > Wire Color Code IdentificationAccessories and Optional EquipmentOpen30.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > Radio, Speakers & Digital ClockAccessories and Optional EquipmentOpen31.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > Speaker System > Radio Rear Speaker Wiring CircuitAccessories and Optional EquipmentOpen32.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > Speaker System > Radio, Front Speakers and Digital ClockAccessories and Optional EquipmentOpen33.Vacuum and Vapor Hose DiagramsHeating and Air ConditioningOpen34.Components > Miscellaneous Components > Brake Vacuum Release ValveGeneralOpen35.Components > Miscellaneous Components > Cruise Control Vacuum TankGeneralOpen36.Components > Miscellaneous Components > Electronic Level Control CompressorGeneralOpen37.Components > Miscellaneous Components > Expansion Tube, A/CGeneralOpen38.Components > Miscellaneous Components > Heater Water ValveGeneralOpen39.Components > Miscellaneous Components > Vacuum Tank > Less Cruise ControlGeneralOpen40.Components > Miscellaneous Components > Vacuum Tank > With Cruise ControlGeneralOpen41.Components > Motors > Blower MotorGeneralOpen42.Components > Motors > Recirculating Outside Air Vacuum MotorGeneralOpen43.Components > Relays > A/C Coolant Fan RelayGeneralOpen44.Electrical Diagrams > Fuel Control & Idle Air Control (IAC)Powertrain ManagementOpen45.Electrical Diagrams > Instrument Panel > With Digital Cluster > Fuel Gauge & TachometerInstrument Panel, Gauges and Warning IndicatorsOpen46.Electrical Diagrams > Instrument Panel > With Gauges Cluster > With Fuel Gauge & TachometerInstrument Panel, Gauges and Warning IndicatorsOpen47.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > Fuel Gauge > Gauges Cluster > With TachometerGeneralOpen48.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > System Diagram > Instrument Panel > With Digital Cluster > Fuel Gauge & TachometerGeneralOpen