Wiring Diagram Cluster

2010 Subaru Legacy F4 Engine Management Wiring Diagram

Find ECU/PCM wiring, fuel injector circuits, ignition coil paths, and oxygen sensor schematics for engine diagnostics.

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Matched Diagrams

48

Variant Used

Legacy F4-2.5L DOHC Turbo

Total Vehicle Diagrams

746

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2010 Subaru Legacy F4 Application and ID

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.

2010 Subaru Legacy F4 Application and ID →
2010 Subaru Legacy F4 Application and ID2010 Subaru Legacy F4 A L L Diagnostic Trouble Codes ( DTC )2010 Subaru Legacy F4 A L L Diagnostic Trouble Codes ( DTC )

Diagnostic signal

Codes Often Seen With This System

Use the code cluster when wiring faults overlap with check-engine or module-level diagnostics.

P0301: Cylinder 1 Misfire Detected →
P0030: HO2S Heater Control Circuit (Bank 1, Sensor 1)P0300: Random/Multiple Cylinder Misfire DetectedP0351: Ignition Coil A Primary/Secondary Circuit

Top Engine Management Diagram Paths

1.Engine — Crankshaft and PistonEngine, Cooling and ExhaustOpen2.Engine — Cylinder BlockEngine, Cooling and ExhaustOpen3.Engine — Cylinder Head and CamshaftEngine, Cooling and ExhaustOpen4.Engine — Cylinder Head and Valve AssemblyEngine, Cooling and ExhaustOpen5.Engine — Engine MountingEngine, Cooling and ExhaustOpen6.Engine — Timing BeltEngine, Cooling and ExhaustOpen7.Engine — V-BeltEngine, Cooling and ExhaustOpen8.Engine > Engine Lubrication — DiagramEngine, Cooling and ExhaustOpen9.Engine > Tune-up and Engine Performance Checks > Air Cleaner Housing — DiagramEngine, Cooling and ExhaustOpen10.Tune-up and Engine Performance Checks > Air Cleaner Housing — DiagramPowertrain ManagementOpen11.Antitheft and Alarm Systems — Electrical Diagrams > Security SystemAccessories and Optional EquipmentOpen12.Electrical Diagrams > Antitheft and Alarm Systems > Security SystemGeneralOpen13.Electrical Diagrams > Ground Distribution > Engine GroundPower and Ground DistributionOpen14.Electrical Diagrams > Power and Ground Distribution > System Diagram > Ground Distribution > Engine GroundGeneralOpen15.Electrical Diagrams > Powertrain Management > Computers and Control Systems > Information BusGeneralOpen16.Electrical Diagrams > Powertrain Management > Computers and Control Systems > System DiagramGeneralOpen17.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > Fuel PumpGeneralOpen18.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > System DiagramGeneralOpen19.Electrical Diagrams > Powertrain Management > Ignition SystemGeneralOpen20.Electrical Diagrams > Powertrain Management > System Diagram > E/G(TB)-01GeneralOpen21.Electrical Diagrams > Powertrain Management > System Diagram > E/G(TB)-02GeneralOpen22.Electrical Diagrams > Powertrain Management > System Diagram > E/G(TB)-03GeneralOpen23.Electrical Diagrams > Powertrain Management > System Diagram > E/G(TB)-04GeneralOpen24.Electrical Diagrams > Powertrain Management > System Diagram > E/G(TB)-05GeneralOpen25.Electrical Diagrams > Powertrain Management > System Diagram > E/G(TB)-06GeneralOpen26.Electrical Diagrams > Powertrain Management > System Diagram > E/G(TB)-07GeneralOpen27.Electrical Diagrams > Powertrain Management > System Diagram > E/G(TB)-08GeneralOpen28.Electrical Diagrams > Powertrain Management > System Diagram > E/G(TB)-09GeneralOpen29.Electrical Diagrams > Powertrain Management > System Diagram > E/G(TB)-10GeneralOpen30.Electrical Diagrams > Powertrain Management > System Diagram > E/G(TB)-11GeneralOpen31.Electrical Diagrams > Powertrain Management > System Diagram > E/G(TB)-12GeneralOpen32.Electrical Diagrams > Powertrain Management > System Diagram > E/G(TB)-13GeneralOpen33.Electrical Diagrams > Powertrain Management > System Diagram > System Overview SchematicGeneralOpen34.Electrical Diagrams > Powertrain Management > System Diagram > Wiring Diagram IndexGeneralOpen35.Electrical Diagrams > Starting System > System Diagram > Remote Engine Start SystemGeneralOpen36.Exploded Views > Engine > Engine LubricationGeneralOpen37.Exploded Views > Engine > Intake Manifold > Fuel InjectionGeneralOpen38.Exploded Views > Engine > Intake Manifold > IntakeGeneralOpen39.Exploded Views > Engine > System Diagram > Crankshaft and PistonGeneralOpen40.Exploded Views > Engine > System Diagram > Cylinder BlockGeneralOpen41.Exploded Views > Engine > System Diagram > Cylinder Head and CamshaftGeneralOpen42.Exploded Views > Engine > System Diagram > Cylinder Head and Valve AssemblyGeneralOpen43.Exploded Views > Engine > System Diagram > Engine MountingGeneralOpen44.Exploded Views > Engine > System Diagram > Timing BeltGeneralOpen45.Exploded Views > Engine > System Diagram > V-BeltGeneralOpen46.Power and Ground Distribution — Electrical Diagrams > Ground Distribution > Engine GroundStarting and ChargingOpen47.Starting System — Electrical Diagrams > Remote Engine Start SystemStarting and ChargingOpen48.Tune-up and Engine Performance Checks > Air Cleaner Housing — DiagramMaintenanceOpen

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OEM Manual Evidence

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2010 Subaru Legacy F4 Application and IDOEM Manual

Repair and Diagnosis: Application and ID — 2010 Subaru Legacy F4-2.5L SOHC Service Manual | Operation CHARM Operation CHARM : Car repair ma...

2010 Subaru Legacy F4 Application and IDOEM Manual

Repair and Diagnosis: Application and ID — 2010 Subaru Legacy F4-2.5L DOHC Turbo Service Manual | Operation CHARM Operation CHARM : Car rep...

2010 Subaru Legacy F4 A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2010 Subaru Legacy F4-2.5L SOHC Service Manual | Operation CHARM Operation CHARM : Car repair manu...

2010 Subaru Legacy F4 A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2010 Subaru Legacy F4-2.5L DOHC Turbo Service Manual | Operation CHARM Operation CHARM : Car repai...

Likely Trouble Codes for This System

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P0301: Cylinder 1 Misfire DetectedCode

Ignition code commonly seen during engine management diagnosis.

P0030: HO2S Heater Control Circuit (Bank 1, Sensor 1)Code

Emissions code commonly seen during engine management diagnosis.

P0300: Random/Multiple Cylinder Misfire DetectedCode

Ignition code commonly seen during engine management diagnosis.

P0351: Ignition Coil A Primary/Secondary CircuitCode

Ignition code commonly seen during engine management diagnosis.

P0352: Ignition Coil B Primary/Secondary CircuitCode

Ignition code commonly seen during engine management diagnosis.

P0353: Ignition Coil C Primary/Secondary CircuitCode

Ignition code commonly seen during engine management diagnosis.

More Legacy F4 Wiring Pages

Starter Wiring DiagramAlternator Wiring DiagramHeadlight Wiring DiagramABS Brake Wiring DiagramA/C & Heater Wiring DiagramPower Window Wiring DiagramInstrument Cluster Wiring DiagramWiper & Washer Wiring DiagramTransmission Wiring DiagramCruise Control Wiring DiagramAirbag SRS Wiring DiagramBody Electrical Wiring Diagram

Same System, Other Vehicles

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