Wiring Diagram Cluster
1990 Chevrolet Lumina 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
Lumina L4-151 2.5L
Total Vehicle Diagrams
467
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 1990 Chevrolet Lumina hub with repairs, specs, codes, and other systems already tied to this car.
View vehicle repair hub →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.
1990 Chevrolet Lumina A L L Diagnostic Trouble Codes ( DTC ) →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 →Top A/C & Heater Diagram Paths
1.Electrical Diagrams > Heating and Air Conditioning > Air Door Actuator / Motor, HVAC > With A/CGeneralOpen2.Electrical Diagrams > Heating and Air Conditioning > Air Door Actuator / Motor, HVAC > Without A/CGeneralOpen3.Electrical Diagrams > Heating and Air Conditioning > Compressor HVACGeneralOpen4.Compressor HVAC — Diagnostic Aids > Pull-to-Seat ConnectorsHeating and Air ConditioningOpen5.Compressor HVAC — Diagnostic Aids > Push-to-Seat ConnectorsHeating and Air ConditioningOpen6.Compressor HVAC — Diagram Information and Instructions > Cell ReferencesHeating and Air ConditioningOpen7.Compressor HVAC — Diagram Information and Instructions > Schematic SymbolsHeating and Air ConditioningOpen8.Compressor HVAC — Diagram Information and Instructions > Symbol IdentificationHeating and Air ConditioningOpen9.Compressor HVAC — Diagram Information and Instructions > Wire Color Code IdentificationHeating and Air ConditioningOpen10.Compressor HVAC — Electrical DiagramsHeating and Air ConditioningOpen11.Compressor HVAC — Exploded ViewsHeating and Air ConditioningOpen12.Components > Modules > A/C, Heater & Radio Control Interface ModuleGeneralOpen13.Electrical Diagrams > Heating and Air Conditioning > Blower Motor > With A/CGeneralOpen14.Electrical Diagrams > Heating and Air Conditioning > Blower Motor > Without A/CGeneralOpen15.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Blower Controls > With A/CGeneralOpen16.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Blower Controls > Without A/CGeneralOpen17.Exploded Views > Compressor HVACGeneralOpen18.Vacuum and Vapor Hose Diagrams > Heating and Air Conditioning > With C40 (Heater, Outside Air, with Fan, Electronic)GeneralOpen19.Electrical Diagrams > Blower Controls > With A/CHeating and Air ConditioningOpen20.Electrical Diagrams > Blower Controls > Without A/CHeating and Air ConditioningOpen21.Vacuum and Vapor Hose Diagrams > With C40 (Heater, Outside Air, with Fan, Electronic)Heating and Air ConditioningOpen22.Components > Miscellaneous Components > A/C Valve Vacuum ActuatorGeneralOpen23.Components > Relays > A/C Compressor RelayGeneralOpen24.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Air Delivery and Temperature Controls > With A/CGeneralOpen25.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Air Delivery and Temperature Controls > Without A/CGeneralOpen26.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Compressor ControlsGeneralOpen27.Exploded Views > Housing Assembly HVAC > Part 1 of 2GeneralOpen28.Exploded Views > Housing Assembly HVAC > Part 2 of 2GeneralOpen29.Vacuum and Vapor Hose Diagrams > Heating and Air Conditioning > With C67 (Air Conditioner, Front Electronic Controls)GeneralOpen30.Vacuum and Vapor Hose Diagrams > Heating and Air Conditioning > With C67 Air ConditionerGeneralOpen31.Electrical Diagrams > Air Delivery and Temperature Controls > With A/CHeating and Air ConditioningOpen32.Electrical Diagrams > Air Delivery and Temperature Controls > Without A/CHeating and Air ConditioningOpen33.Electrical Diagrams > Compressor ControlsHeating and Air ConditioningOpen34.Radio, Stereo, and Compact Disc — Diagnostic Aids > Pull-to-Seat ConnectorsAccessories and Optional EquipmentOpen35.Radio, Stereo, and Compact Disc — Diagnostic Aids > Push-to-Seat ConnectorsAccessories and Optional EquipmentOpen36.Radio, Stereo, and Compact Disc — Diagram Information and Instructions > Cell ReferencesAccessories and Optional EquipmentOpen37.Radio, Stereo, and Compact Disc — Diagram Information and Instructions > Schematic SymbolsAccessories and Optional EquipmentOpen38.Radio, Stereo, and Compact Disc — Diagram Information and Instructions > Symbol IdentificationAccessories and Optional EquipmentOpen39.Radio, Stereo, and Compact Disc — Diagram Information and Instructions > Wire Color Code IdentificationAccessories and Optional EquipmentOpen40.Radio, Stereo, and Compact Disc — Electrical DiagramsAccessories and Optional EquipmentOpen41.Vacuum and Vapor Hose Diagrams > With C67 (Air Conditioner, Front Electronic Controls)Heating and Air ConditioningOpen42.Vacuum and Vapor Hose Diagrams > With C67 Air ConditionerHeating and Air ConditioningOpen43.Backup Lamp — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen44.Backup Lamp — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen45.Backup Lamp — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen46.Backup Lamp — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen47.Backup Lamp — Diagram Information and Instructions > Symbol IdentificationLighting and HornsOpen48.Backup Lamp — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen
Exact Vehicle Hub
Browse →OEM Manual Evidence
Browse →1990 Chevrolet Lumina A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1990 Chevrolet Lumina L4-151 2.5L Service Manual | Operation CHARM Operation CHARM : Car repair ma...
1990 Chevrolet Lumina A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1990 Chevrolet Lumina V6-191 3.1L Service Manual | Operation CHARM Operation CHARM : Car repair ma...
1990 Chevrolet Lumina Diagnostic Trouble CodesOEM Manual
Repair and Diagnosis: Diagnostic Trouble Codes — 1990 Chevrolet Lumina V6-191 3.1L Service Manual | Operation CHARM Operation CHARM : Car r...
1990 Chevrolet Lumina Diagnostic Trouble CodesOEM Manual
Repair and Diagnosis: Diagnostic Trouble Codes — 1990 Chevrolet Lumina L4-151 2.5L Service Manual | Operation CHARM Operation CHARM : Car r...
More Lumina Wiring Pages
Starter Wiring DiagramAlternator Wiring DiagramFuel Pump Wiring DiagramHeadlight Wiring DiagramABS Brake Wiring DiagramPower Window Wiring DiagramInstrument Cluster Wiring DiagramWiper & Washer Wiring DiagramTransmission Wiring DiagramCruise Control Wiring DiagramAirbag SRS Wiring DiagramEngine Management Wiring DiagramBody Electrical Wiring Diagram
Same System, Other Vehicles
1990 Chevrolet Beretta A/C & Heater Wiring Diagram1990 Chevrolet Caprice A/C & Heater Wiring Diagram1990 Chevrolet Cavalier A/C & Heater Wiring Diagram1990 Chevrolet Celebrity A/C & Heater Wiring Diagram1990 Chevrolet Corsica A/C & Heater Wiring Diagram1990 Chevrolet Corvette A/C & Heater Wiring Diagram1992 Chevrolet Caprice RWD A/C & Heater Wiring Diagram1992 Chevrolet Caprice Wagon RWD A/C & Heater Wiring Diagram