Wiring Diagram Cluster

1991 Chevrolet Caprice 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

Caprice Classic V8-305 5.0L VIN E TBI

Total Vehicle Diagrams

636

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.

Keep context

Vehicle Repair Hub

Step out of raw diagrams and into the full 1991 Chevrolet Caprice hub with repairs, specs, codes, and other systems already tied to this car.

View vehicle repair hub β†’

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.

1991 Chevrolet Caprice Diagnostic Trouble Codes β†’

Stay in wiring

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.Components > Miscellaneous Components > A/C Compressor ClutchGeneralOpen2.Components > Miscellaneous Components > A/C Compressor CoilGeneralOpen3.Components > Miscellaneous Components > Heat-Defrost Valve Vacuum ActuatorGeneralOpen4.Components > Miscellaneous Components > Heater & A/C Control AssemblyGeneralOpen5.Components > Miscellaneous Components > Heater Shutoff Air Valve Vacuum ActuatorGeneralOpen6.Components > Relays > A/C Compressor Control RelayGeneralOpen7.Electrical Diagrams > Heating and Air Conditioning > Blower ControlsGeneralOpen8.Electrical Diagrams > Heating and Air Conditioning > Compressor ControlsGeneralOpen9.Vacuum and Vapor Hose Diagrams > Heating and Air ConditioningGeneralOpen10.Antilock Brakes / Traction Control Systems β€” Diagnostic Aids > Pull-to-Seat ConnectorsBrakes and Traction ControlOpen11.Antilock Brakes / Traction Control Systems β€” Diagnostic Aids > Push-to-Seat ConnectorsBrakes and Traction ControlOpen12.Antilock Brakes / Traction Control Systems β€” Diagram Information and Instructions > Cell ReferencesBrakes and Traction ControlOpen13.Antilock Brakes / Traction Control Systems β€” Diagram Information and Instructions > Schematic SymbolsBrakes and Traction ControlOpen14.Antilock Brakes / Traction Control Systems β€” Diagram Information and Instructions > Wire Color Code IdentificationBrakes and Traction ControlOpen15.Antilock Brakes / Traction Control Systems β€” Electrical Diagrams > Part 1 of 3Brakes and Traction ControlOpen16.Antilock Brakes / Traction Control Systems β€” Electrical Diagrams > Part 2 of 3Brakes and Traction ControlOpen17.Antilock Brakes / Traction Control Systems β€” Electrical Diagrams > Part 3 of 3Brakes and Traction ControlOpen18.Electrical Diagrams > Blower ControlsHeating and Air ConditioningOpen19.Electrical Diagrams > Compressor ControlsHeating and Air ConditioningOpen20.Radio, Stereo, and Compact Disc β€” Diagnostic Aids > Pull-to-Seat ConnectorsAccessories and Optional EquipmentOpen21.Radio, Stereo, and Compact Disc β€” Diagnostic Aids > Push-to-Seat ConnectorsAccessories and Optional EquipmentOpen22.Radio, Stereo, and Compact Disc β€” Diagram Information and Instructions > Cell ReferencesAccessories and Optional EquipmentOpen23.Radio, Stereo, and Compact Disc β€” Diagram Information and Instructions > Schematic SymbolsAccessories and Optional EquipmentOpen24.Radio, Stereo, and Compact Disc β€” Diagram Information and Instructions > Wire Color Code IdentificationAccessories and Optional EquipmentOpen25.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > Less Delco-Bose SystemAccessories and Optional EquipmentOpen26.Radio, Stereo, and Compact Disc β€” Electrical Diagrams > With Delco Bose SystemAccessories and Optional EquipmentOpen27.Vacuum and Vapor Hose DiagramsHeating and Air ConditioningOpen28.Components > Miscellaneous Components > A/C Clutch DiodeGeneralOpen29.Components > Miscellaneous Components > Blower ResistorGeneralOpen30.Components > Miscellaneous Components > ELC Compressor AssemblyGeneralOpen31.Components > Miscellaneous Components > Electronic A/C Control HeadGeneralOpen32.Components > Miscellaneous Components > Expansion Tube, A/CGeneralOpen33.Components > Miscellaneous Components > Recirculating Valve Vacuum ActuatorGeneralOpen34.Components > Miscellaneous Components > Upper/Lower Mode Valve Vacuum ActuatorGeneralOpen35.Components > Miscellaneous Components > Vacuum TankGeneralOpen36.Components > Motors > Blower MotorGeneralOpen37.Components > Motors > Forward-Back MotorGeneralOpen38.Components > Motors > LH Forward/Back MotorGeneralOpen39.Components > Motors > RH Forward/Back MotorGeneralOpen40.Components > Relays > High Blower RelayGeneralOpen41.Components > Solenoids > Air Injection Vacuum Control Solenoid ValveGeneralOpen42.Components > Switches > A/C Pressure Cycling SwitchGeneralOpen43.Components > Switches > Accessory Switch PanelGeneralOpen44.Electrical Diagrams > Antilock Brakes / Traction Control Systems > ABS LightGeneralOpen45.Electrical Diagrams > Antilock Brakes / Traction Control Systems > Electronic Brake Control ModuleGeneralOpen46.Electrical Diagrams > Antilock Brakes / Traction Control Systems > System Diagram > Part 1 of 3GeneralOpen47.Electrical Diagrams > Antilock Brakes / Traction Control Systems > System Diagram > Part 2 of 3GeneralOpen48.Electrical Diagrams > Antilock Brakes / Traction Control Systems > System Diagram > Part 3 of 3GeneralOpen