Wiring Diagram Cluster
1991 Buick LeSabre 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
LeSabre V6-231 3.8L VIN C SFI
Total Vehicle Diagrams
724
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.
Keep context
Vehicle Repair Hub
Step out of raw diagrams and into the full 1991 Buick LeSabre 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.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > Daytime Running Lights (T61 Option)GeneralOpen2.Headlamp — Electrical Diagrams > Daytime Running Lights (T61 Option)Lighting and HornsOpen3.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp SwitchGeneralOpen4.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > Twilight Sentinel (T82 Option) > Less Twilight SentinelGeneralOpen5.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > Twilight Sentinel (T82 Option) > With Twilight SentinelGeneralOpen6.Headlamp — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen7.Headlamp — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen8.Headlamp — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen9.Headlamp — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen10.Headlamp — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen11.Headlamp — Electrical Diagrams > Twilight Sentinel (T82 Option) > Less Twilight SentinelLighting and HornsOpen12.Headlamp — Electrical Diagrams > Twilight Sentinel (T82 Option) > With Twilight SentinelLighting and HornsOpen13.Components > Modules > Twilight Sentinel/Daytime Running Lamps ModuleGeneralOpen14.Components > Switches > Headlamp Dimmer SwitchGeneralOpen15.Electrical Diagrams > Instrument Panel and Warning Indicators > Indicator Cluster > ABS, Fasten Belts, High Beam, I/P Lamps, Svc Eng Soon, TurnInstrument Panel, Gauges and Warning IndicatorsOpen16.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > System Diagram > Instrument Panel and Warning Indicators > Indicator Cluster > ABS, Fasten Belts, High Beam, I/P Lamps, Svc Eng Soon, TurnGeneralOpen17.Electrical Diagrams > Lighting and Horns > Backup LampGeneralOpen18.Electrical Diagrams > Lighting and Horns > Brake LampGeneralOpen19.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Ash Tray LampGeneralOpen20.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > System Diagram > Courtesy > LH SideGeneralOpen21.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > System Diagram > Courtesy > RH SideGeneralOpen22.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > System Diagram > Footwell CourtesyGeneralOpen23.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > System Diagram > Rear RailGeneralOpen24.Electrical Diagrams > Lighting and Horns > Dimmer SwitchGeneralOpen25.Electrical Diagrams > Lighting and Horns > Dome LampGeneralOpen26.Electrical Diagrams > Lighting and Horns > Hazard Warning LampsGeneralOpen27.Electrical Diagrams > Lighting and Horns > HornGeneralOpen28.Electrical Diagrams > Lighting and Horns > Lamp Control ModuleGeneralOpen29.Electrical Diagrams > Lighting and Horns > Map LightGeneralOpen30.Electrical Diagrams > Lighting and Horns > Parking Lamp > Park LampsGeneralOpen31.Electrical Diagrams > Lighting and Horns > Parking Lamp > Park Light SwitchGeneralOpen32.Electrical Diagrams > Lighting and Horns > System Diagram > HeadGeneralOpen33.Electrical Diagrams > Lighting and Horns > System Diagram > Warning > LH SideGeneralOpen34.Electrical Diagrams > Lighting and Horns > System Diagram > Warning > RH SideGeneralOpen35.Electrical Diagrams > Lighting and Horns > Trunk LampGeneralOpen36.Electrical Diagrams > Lighting and Horns > Turn Signals > Cornering LampsGeneralOpen37.Electrical Diagrams > Lighting and Horns > Turn Signals > Turn, Hazard & StopGeneralOpen38.Electrical Diagrams > Lighting and Horns > Underhood LampGeneralOpen39.Electrical Diagrams > Lighting and Horns > Vanity LampGeneralOpen40.Backup Lamp — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen41.Backup Lamp — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen42.Backup Lamp — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen43.Backup Lamp — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen44.Backup Lamp — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen45.Backup Lamp — Electrical DiagramsLighting and HornsOpen46.Courtesy Lamp — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen47.Courtesy Lamp — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen48.Courtesy Lamp — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen
Exact Vehicle Hub
Browse →Repairs That Intersect This Wiring
Browse →Likely Trouble Codes for This System
Browse →More LeSabre Wiring Pages
Starter Wiring DiagramAlternator 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 DiagramEngine Management Wiring DiagramBody Electrical Wiring Diagram
Same System, Other Vehicles
1991 Toyota Supra Headlight Wiring Diagram1994 Toyota Celica Headlight Wiring Diagram1990 Honda Prelude Headlight Wiring Diagram1993 Honda Accord Headlight Wiring Diagram1991 Ford Thunderbird Headlight Wiring Diagram1992 Ford Crown Victoria Headlight Wiring Diagram1990 Ford Probe Headlight Wiring Diagram1991 Toyota Cressida Headlight Wiring Diagram