Wiring Diagram Cluster

2012 Buick Regal Headlight Wiring Diagram

Find headlight circuit schematics, high/low beam relay paths, DRL wiring, and ground points for lighting diagnosis.

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Matched Diagrams

48

Variant Used

Regal L4-2.0L Turbo

Total Vehicle Diagrams

3789

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Headlight Bulb Replacement2012 Buick Regal A L L Diagnostic Trouble Codes ( DTC )

Likely fix path

Exact Repair Guides

These repair flows most often intersect with headlight diagnosis on this exact vehicle.

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Diagnostic signal

Codes Often Seen With This System

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

P0563: System Voltage High →

Top Headlight Diagram Paths

1.Electrical Diagrams > Lighting and Horns > System Diagram > Headlights/Daytime Running Lights (DRL) SchematicsGeneralOpen2.Electrical Diagrams > Headlights/Daytime Running Lights (DRL) SchematicsLighting and HornsOpen3.Headlamp — Headlamp - Left High Beam (T4A)Lighting and HornsOpen4.Headlamp — Headlamp - Left Low Beam (T4A)Lighting and HornsOpen5.Headlamp — Headlamp - Left Low Beam (T4F)Lighting and HornsOpen6.Headlamp — Headlamp - Right High Beam (T4A)Lighting and HornsOpen7.Headlamp — Headlamp - Right Low Beam (T4A)Lighting and HornsOpen8.Headlamp — Headlamp - Right Low Beam (T4F)Lighting and HornsOpen9.Connector Views > Connector End Views By Name > Headlamp - Left High Beam (T4A)GeneralOpen10.Connector Views > Connector End Views By Name > Headlamp - Left Low Beam (T4A)GeneralOpen11.Connector Views > Connector End Views By Name > Headlamp - Left Low Beam (T4F)GeneralOpen12.Connector Views > Connector End Views By Name > Headlamp - Right High Beam (T4A)GeneralOpen13.Connector Views > Connector End Views By Name > Headlamp - Right Low Beam (T4A)GeneralOpen14.Connector Views > Connector End Views By Name > Headlamp - Right Low Beam (T4F)GeneralOpen15.Connector Views > Headlamp > System Diagram > Headlamp - Left High Beam (T4A)GeneralOpen16.Connector Views > Headlamp > System Diagram > Headlamp - Left Low Beam (T4A)GeneralOpen17.Connector Views > Headlamp > System Diagram > Headlamp - Left Low Beam (T4F)GeneralOpen18.Connector Views > Headlamp > System Diagram > Headlamp - Right High Beam (T4A)GeneralOpen19.Connector Views > Headlamp > System Diagram > Headlamp - Right Low Beam (T4A)GeneralOpen20.Connector Views > Headlamp > System Diagram > Headlamp - Right Low Beam (T4F)GeneralOpen21.Connector Views > Multiple Junction Connector > Connector End Views By Name > Headlamp - Left High Beam (T4A)GeneralOpen22.Connector Views > Multiple Junction Connector > Connector End Views By Name > Headlamp - Left Low Beam (T4A)GeneralOpen23.Connector Views > Multiple Junction Connector > Connector End Views By Name > Headlamp - Left Low Beam (T4F)GeneralOpen24.Connector Views > Multiple Junction Connector > Connector End Views By Name > Headlamp - Right High Beam (T4A)GeneralOpen25.Connector Views > Multiple Junction Connector > Connector End Views By Name > Headlamp - Right Low Beam (T4A)GeneralOpen26.Connector Views > Multiple Junction Connector > Connector End Views By Name > Headlamp - Right Low Beam (T4F)GeneralOpen27.Headlamp — Headlamp Ballast - Left (T4F)Lighting and HornsOpen28.Headlamp — Headlamp Ballast - Right (T4F)Lighting and HornsOpen29.Connector Views > Connector End Views By Name > Headlamp Ballast - Left (T4F)GeneralOpen30.Connector Views > Connector End Views By Name > Headlamp Ballast - Right (T4F)GeneralOpen31.Connector Views > Connector End Views By Name > Headlamp SwitchGeneralOpen32.Connector Views > Headlamp > Headlamp SwitchGeneralOpen33.Connector Views > Headlamp > System Diagram > Headlamp Ballast - Left (T4F)GeneralOpen34.Connector Views > Headlamp > System Diagram > Headlamp Ballast - Right (T4F)GeneralOpen35.Connector Views > Multiple Junction Connector > Connector End Views By Name > Headlamp Ballast - Left (T4F)GeneralOpen36.Connector Views > Multiple Junction Connector > Connector End Views By Name > Headlamp Ballast - Right (T4F)GeneralOpen37.Connector Views > Multiple Junction Connector > Connector End Views By Name > Headlamp SwitchGeneralOpen38.Electrical Diagrams > Lighting and Horns > HornGeneralOpen39.Electrical Diagrams > Lighting and Horns > System Diagram > Exterior Lights SchematicsGeneralOpen40.Electrical Diagrams > Lighting and Horns > System Diagram > Fog Lights SchematicsGeneralOpen41.Electrical Diagrams > Lighting and Horns > System Diagram > Interior Lights Dimming SchematicsGeneralOpen42.Electrical Diagrams > Lighting and Horns > System Diagram > Interior Lights SchematicsGeneralOpen43.Backup Lamp — Backup Lamp - LeftLighting and HornsOpen44.Backup Lamp — Backup Lamp - RightLighting and HornsOpen45.Courtesy Lamp — Door Courtesy Lamp - DriverLighting and HornsOpen46.Courtesy Lamp — Door Courtesy Lamp - PassengerLighting and HornsOpen47.Courtesy Lamp — Flood Lamp - Driver Door PocketLighting and HornsOpen48.Courtesy Lamp — Flood Lamp - Passenger Door PocketLighting and HornsOpen

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OEM Manual Evidence

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2012 Buick Regal A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2012 Buick Regal L4-2.0L Turbo Service Manual | Operation CHARM Operation CHARM : Car repair manua...

2012 Buick Regal A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2012 Buick Regal L4-2.4L Service Manual | Operation CHARM Operation CHARM : Car repair manuals for...

2012 Buick Regal A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2012 Buick LaCrosse AWD V6-3.6L Service Manual | Operation CHARM Operation CHARM : Car repair manu...

2012 Buick Regal A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2012 Buick LaCrosse FWD L4-2.4L Service Manual | Operation CHARM Operation CHARM : Car repair manu...

Repairs That Intersect This Wiring

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2012 Buick Regal Headlight Bulb ReplacementRepair

Open the matching repair workflow that usually intersects with headlight diagnosis on this vehicle.

Likely Trouble Codes for This System

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P0563: System Voltage HighCode

Electrical code commonly seen during headlight diagnosis.

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