Wiring Diagram Cluster
1991 Pontiac Grand AM Headlight Wiring Diagram
Find headlight circuit schematics, high/low beam relay paths, DRL wiring, and ground points for lighting diagnosis.
Matched Diagrams
48
Variant Used
Grand AM L4-138 2.3L DOHC QUAD 4
Total Vehicle Diagrams
521
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.
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Vehicle Repair Hub
Step out of raw diagrams and into the full 1991 Pontiac Grand AM hub with repairs, specs, codes, and other systems already tied to this car.
View vehicle repair hub →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.Components > Modules > Daytime Running Lamps (DRL) ModuleGeneralOpen2.Headlamp — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen3.Headlamp — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen4.Headlamp — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen5.Headlamp — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen6.Headlamp — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen7.Headlamp — Electrical Diagrams > Le Models > Less Fog LampsLighting and HornsOpen8.Headlamp — Electrical Diagrams > Le Models > With Fog Lamps > Part 1 of 2Lighting and HornsOpen9.Headlamp — Electrical Diagrams > Le Models > With Fog Lamps > Part 2 of 2Lighting and HornsOpen10.Headlamp — Electrical Diagrams > SE Models > Less Fog Lamps > Part 1 of 2Lighting and HornsOpen11.Headlamp — Electrical Diagrams > SE Models > Less Fog Lamps > Part 2 of 2Lighting and HornsOpen12.Headlamp — Electrical Diagrams > SE Models > With Fog LampsLighting and HornsOpen13.Components > Miscellaneous Components > DRL In-Line Fuse AGeneralOpen14.Components > Miscellaneous Components > DRL In-Line Fuse BGeneralOpen15.Components > Miscellaneous Components > DRL In-Line ResistorGeneralOpen16.Components > Switches > Headlight Dimmer SwitchGeneralOpen17.Electrical Diagrams > Headlamp > Headlamp Switch > Le Models > Part 1 of 3GeneralOpen18.Electrical Diagrams > Headlamp > Headlamp Switch > Le Models > Part 2 of 3GeneralOpen19.Electrical Diagrams > Headlamp > Headlamp Switch > Le Models > Part 3 of 3GeneralOpen20.Electrical Diagrams > Headlamp > Headlamp Switch > SE Models > Part 1 of 2GeneralOpen21.Electrical Diagrams > Headlamp > Headlamp Switch > SE Models > Part 2 of 2GeneralOpen22.Electrical Diagrams > Headlamp > System Diagram > Le Models > Less Fog LampsGeneralOpen23.Electrical Diagrams > Headlamp > System Diagram > Le Models > With Fog Lamps > Part 1 of 2GeneralOpen24.Electrical Diagrams > Headlamp > System Diagram > Le Models > With Fog Lamps > Part 2 of 2GeneralOpen25.Electrical Diagrams > Headlamp > System Diagram > SE Models > Less Fog Lamps > Part 1 of 2GeneralOpen26.Electrical Diagrams > Headlamp > System Diagram > SE Models > Less Fog Lamps > Part 2 of 2GeneralOpen27.Electrical Diagrams > Headlamp > System Diagram > SE Models > With Fog LampsGeneralOpen28.Backup Lamp — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen29.Backup Lamp — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen30.Backup Lamp — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen31.Backup Lamp — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen32.Backup Lamp — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen33.Backup Lamp — Electrical DiagramsLighting and HornsOpen34.Hazard Warning Lamps — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen35.Hazard Warning Lamps — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen36.Hazard Warning Lamps — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen37.Hazard Warning Lamps — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen38.Hazard Warning Lamps — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen39.Hazard Warning Lamps — Electrical Diagrams > Exterior LE > Part 1 of 2Lighting and HornsOpen40.Hazard Warning Lamps — Electrical Diagrams > Exterior LE > Part 2 of 2Lighting and HornsOpen41.Hazard Warning Lamps — Electrical Diagrams > Exterior SELighting and HornsOpen42.Horn — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen43.Horn — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen44.Horn — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen45.Horn — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen46.Horn — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen47.Horn — Electrical DiagramsLighting and HornsOpen48.Trunk Lamp — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen
Exact Vehicle Hub
Browse →Repairs That Intersect This Wiring
Browse →Likely Trouble Codes for This System
Browse →More Grand AM Wiring Pages
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Same System, Other Vehicles
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