Wiring Diagram Cluster
1990 Subaru Legacy 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
Legacy Sedan 2WD F4-2.2L SOHC
Total Vehicle Diagrams
564
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 1990 Subaru Legacy 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 Subaru Legacy 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 > Compressor HVACGeneralOpen2.Compressor HVAC — Diagnostic Aids > Electrical Precautions > Battery PrecautionsHeating and Air ConditioningOpen3.Compressor HVAC — Diagnostic Aids > Electrical Precautions > Electrical Connections and CircuitsHeating and Air ConditioningOpen4.Compressor HVAC — Diagnostic Aids > Electrical Precautions > Electronic Component HandlingHeating and Air ConditioningOpen5.Compressor HVAC — Diagnostic Aids > Electrical Precautions > Electronic Component ReplacementHeating and Air ConditioningOpen6.Compressor HVAC — Diagnostic Aids > Electrical Precautions > Electrostatic DischargeHeating and Air ConditioningOpen7.Compressor HVAC — Diagnostic Aids > Wire Repair Procedures > Circuit Protection DevicesHeating and Air ConditioningOpen8.Compressor HVAC — Diagnostic Aids > Wire Repair Procedures > Repairing ConnectorsHeating and Air ConditioningOpen9.Compressor HVAC — Diagnostic Aids > Wire Repair Procedures > Splicing Copper Wire Using Crimp and Seal Splice SleevesHeating and Air ConditioningOpen10.Compressor HVAC — Diagnostic Aids > Wire Repair Procedures > Splicing Copper Wire Using Splice ClipsHeating and Air ConditioningOpen11.Compressor HVAC — Diagnostic Aids > Wire Repair Procedures > Splicing Twisted/Shielded CableHeating and Air ConditioningOpen12.Compressor HVAC — Diagnostic Aids > Wire Repair Procedures > Terminal RepairHeating and Air ConditioningOpen13.Compressor HVAC — Diagnostic Aids > Wire Repair Procedures > Typical Electrical RepairHeating and Air ConditioningOpen14.Compressor HVAC — Diagram Information and Instructions > Key to Wiring DiagramsHeating and Air ConditioningOpen15.Compressor HVAC — Diagram Information and Instructions > Wire Color Code IdentificationHeating and Air ConditioningOpen16.Compressor HVAC — Electrical DiagramsHeating and Air ConditioningOpen17.Electrical Diagrams > Heating and Air Conditioning > Blower and Mode SelectorHeating and Air ConditioningOpen18.Electrical Diagrams > Heating and Air Conditioning > Blower MotorGeneralOpen19.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Electronic Climate Control > Control Unit SchematicGeneralOpen20.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Electronic Climate Control > Wiring DiagramGeneralOpen21.Electrical Diagrams > Heating and Air Conditioning > System Diagram > Heating and Air Conditioning > Blower and Mode SelectorGeneralOpen22.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Electrical Precautions > Battery PrecautionsBrakes and Traction ControlOpen23.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Electrical Precautions > Electrical Connections and CircuitsBrakes and Traction ControlOpen24.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Electrical Precautions > Electronic Component HandlingBrakes and Traction ControlOpen25.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Electrical Precautions > Electronic Component ReplacementBrakes and Traction ControlOpen26.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Electrical Precautions > Electrostatic DischargeBrakes and Traction ControlOpen27.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Wire Repair Procedures > Circuit Protection DevicesBrakes and Traction ControlOpen28.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Wire Repair Procedures > Repairing ConnectorsBrakes and Traction ControlOpen29.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Wire Repair Procedures > Splicing Copper Wire Using Crimp and Seal Splice SleevesBrakes and Traction ControlOpen30.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Wire Repair Procedures > Splicing Copper Wire Using Splice ClipsBrakes and Traction ControlOpen31.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Wire Repair Procedures > Splicing Twisted/Shielded CableBrakes and Traction ControlOpen32.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Wire Repair Procedures > Terminal RepairBrakes and Traction ControlOpen33.Antilock Brakes / Traction Control Systems — Diagnostic Aids > Wire Repair Procedures > Typical Electrical RepairBrakes and Traction ControlOpen34.Antilock Brakes / Traction Control Systems — Diagram Information and Instructions > Key to Wiring DiagramsBrakes and Traction ControlOpen35.Antilock Brakes / Traction Control Systems — Diagram Information and Instructions > Wire Color Code IdentificationBrakes and Traction ControlOpen36.Antilock Brakes / Traction Control Systems — Electrical DiagramsBrakes and Traction ControlOpen37.Diagnostic Aids > Electrical Precautions > Electronic Component ReplacementHeating and Air ConditioningOpen38.Electrical Diagrams > Electronic Climate Control > Control Unit SchematicHeating and Air ConditioningOpen39.Electrical Diagrams > Electronic Climate Control > Wiring DiagramHeating and Air ConditioningOpen40.Electrical Diagrams > Heating and Air Conditioning > Engine Cooling FanHeating and Air ConditioningOpen41.Electrical Diagrams > Heating and Air Conditioning > With Automatic Controls > System SchematicHeating and Air ConditioningOpen42.Electrical Diagrams > Heating and Air Conditioning > With Automatic Controls > Wiring DiagramHeating and Air ConditioningOpen43.Electrical Diagrams > Heating and Air Conditioning > With Manual Controls > System SchematicHeating and Air ConditioningOpen44.Electrical Diagrams > Heating and Air Conditioning > With Manual Controls > Wiring DiagramHeating and Air ConditioningOpen45.Automatic Transmission/Transaxle — Diagnostic Aids > Electrical Precautions > Electronic Component ReplacementTransmission and DrivetrainOpen46.Automatic Transmission/Transaxle > Shift Interlock — Diagnostic Aids > Electrical Precautions > Electronic Component ReplacementTransmission and DrivetrainOpen47.Backup Lamp — Diagnostic Aids > Electrical Precautions > Battery PrecautionsLighting and HornsOpen48.Backup Lamp — Diagnostic Aids > Electrical Precautions > Electrical Connections and CircuitsLighting and HornsOpen
Exact Vehicle Hub
Browse →OEM Manual Evidence
Browse →1990 Subaru Legacy A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1990 Subaru Legacy Sedan 2WD F4-2.2L SOHC Service Manual | Operation CHARM Operation CHARM : Car r...
1990 Subaru Legacy A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1990 Subaru Legacy Wagon 2WD F4-2.2L SOHC Service Manual | Operation CHARM Operation CHARM : Car r...
1990 Subaru Legacy A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1990 Subaru Legacy Sedan 4WD F4-2.2L SOHC Service Manual | Operation CHARM Operation CHARM : Car r...
1990 Subaru Legacy A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1990 Subaru Legacy Wagon 4WD F4-2.2L SOHC Service Manual | Operation CHARM Operation CHARM : Car r...
More Legacy Wiring Pages
Starter Wiring DiagramAlternator Wiring DiagramFuel Pump Wiring DiagramHeadlight Wiring DiagramABS Brake 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
1993 Subaru Impreza A/C & Heater Wiring Diagram1993 Subaru Legacy A/C & Heater Wiring Diagram1993 Subaru SVX A/C & Heater Wiring Diagram1998 Subaru Legacy Brighton Wagon AWD F4 A/C & Heater Wiring Diagram1998 Subaru Legacy GT LTD Sedan AWD F4 A/C & Heater Wiring Diagram1998 Subaru Legacy GT Sedan AWD F4 A/C & Heater Wiring Diagram1998 Subaru Legacy GT Wagon AWD F4 A/C & Heater Wiring Diagram1998 Subaru Legacy L Sedan AWD F4 A/C & Heater Wiring Diagram