Wiring Diagram Cluster

1990 Pontiac Grand AM 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

Grand AM L4-138 2.3L VIN A FI HP

Total Vehicle Diagrams

507

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Headlight Bulb Replacement

Likely fix path

Exact Repair Guides

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

Headlight Bulb Replacement →

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 > Daytime Running Lamp > LE ModelGeneralOpen2.Electrical Diagrams > Lighting and Horns > Daytime Running Lamp > SE ModelGeneralOpen3.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Le Models > Part 1 of 2GeneralOpen4.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Le Models > Part 2 of 2GeneralOpen5.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > SE Models > Part 1 of 2GeneralOpen6.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > SE Models > Part 2 of 2GeneralOpen7.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > Le Models > Less Fog LampsGeneralOpen8.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > Le Models > With Fog LampsGeneralOpen9.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > SE Models > Part 1 of 2GeneralOpen10.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > SE Models > Part 2 of 2GeneralOpen11.Headlamp — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen12.Headlamp — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen13.Headlamp — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen14.Headlamp — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen15.Headlamp — Diagram Information and Instructions > Symbol IdentificationLighting and HornsOpen16.Headlamp — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen17.Headlamp — Electrical Diagrams > Le Models > Less Fog LampsLighting and HornsOpen18.Headlamp — Electrical Diagrams > Le Models > With Fog LampsLighting and HornsOpen19.Headlamp — Electrical Diagrams > SE Models > Part 1 of 2Lighting and HornsOpen20.Headlamp — Electrical Diagrams > SE Models > Part 2 of 2Lighting and HornsOpen21.Components > Switches > Headlight Dimmer SwitchGeneralOpen22.Electrical Diagrams > Lighting and Horns > Backup LampGeneralOpen23.Electrical Diagrams > Lighting and Horns > Brake LampGeneralOpen24.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Cigar and Instrument PanelGeneralOpen25.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Courtesy and Illuminated EntryGeneralOpen26.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Courtesy, Dome, Luggage and ReadingGeneralOpen27.Electrical Diagrams > Lighting and Horns > Dimmer SwitchGeneralOpen28.Electrical Diagrams > Lighting and Horns > Dome Lamp > Courtesy, Dome, Luggage and ReadingGeneralOpen29.Electrical Diagrams > Lighting and Horns > Dome Lamp > Dome, Luggage and Windshield HeaderGeneralOpen30.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > LE ModelGeneralOpen31.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > SE Models > Part 1 of 3GeneralOpen32.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > SE Models > Part 2 of 3GeneralOpen33.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > SE Models > Part 3 of 3GeneralOpen34.Electrical Diagrams > Lighting and Horns > HornGeneralOpen35.Electrical Diagrams > Lighting and Horns > License Plate Lamp > LE ModelGeneralOpen36.Electrical Diagrams > Lighting and Horns > License Plate Lamp > SE ModelGeneralOpen37.Electrical Diagrams > Lighting and Horns > Map LightGeneralOpen38.Electrical Diagrams > Lighting and Horns > Marker Lamp > LE Models > Front Marker, Hazard, Park and Turn > Part 1 of 2GeneralOpen39.Electrical Diagrams > Lighting and Horns > Marker Lamp > LE Models > Front Marker, Hazard, Park and Turn > Part 2 of 2GeneralOpen40.Electrical Diagrams > Lighting and Horns > Marker Lamp > LE Models > License, Rear Marker and TailGeneralOpen41.Electrical Diagrams > Lighting and Horns > Marker Lamp > SE Models > Front Marker, Hazard, Park, Stop and Turn > Part 1 of 3GeneralOpen42.Electrical Diagrams > Lighting and Horns > Marker Lamp > SE Models > Front Marker, Hazard, Park, Stop and Turn > Part 2 of 3GeneralOpen43.Electrical Diagrams > Lighting and Horns > Marker Lamp > SE Models > Front Marker, Hazard, Park, Stop and Turn > Part 3 of 3GeneralOpen44.Electrical Diagrams > Lighting and Horns > Marker Lamp > SE Models > License, Rear Marker and TailGeneralOpen45.Electrical Diagrams > Lighting and Horns > Parking LampGeneralOpen46.Electrical Diagrams > Lighting and Horns > System DiagramGeneralOpen47.Electrical Diagrams > Lighting and Horns > Tail LampGeneralOpen48.Electrical Diagrams > Lighting and Horns > Turn Signals > LE ModelsGeneralOpen

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Repairs That Intersect This Wiring

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1990 Pontiac Grand AM 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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