Wiring Diagram Cluster
1991 Buick Riviera 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
Riviera V6-231 3.8L VIN L SFI
Total Vehicle Diagrams
747
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 Buick Riviera 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.Daytime Running Lamp — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen2.Daytime Running Lamp — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen3.Daytime Running Lamp — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen4.Daytime Running Lamp — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen5.Daytime Running Lamp — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen6.Daytime Running Lamp — Electrical DiagramsLighting and HornsOpen7.Headlamp — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen8.Headlamp — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen9.Headlamp — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen10.Headlamp — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen11.Headlamp — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen12.Headlamp — Electrical Diagrams > Fog Lights > Less FogLighting and HornsOpen13.Headlamp — Electrical Diagrams > Fog Lights > With FogLighting and HornsOpen14.Headlamp — Electrical Diagrams > Twilight SentinelLighting and HornsOpen15.Components > Miscellaneous Components > Daytime Running LightsGeneralOpen16.Components > Modules > Headlamp Door ModuleGeneralOpen17.Components > Motors > Headlight Door MotorGeneralOpen18.Components > Relays > Headlamp RelayGeneralOpen19.Electrical Diagrams > Daytime Running LampGeneralOpen20.Electrical Diagrams > Headlamp > Fog Lights > Less FogGeneralOpen21.Electrical Diagrams > Headlamp > Fog Lights > With FogGeneralOpen22.Electrical Diagrams > Headlamp > Twilight SentinelGeneralOpen23.Electrical Diagrams > Instrument Panel and Warning Indicators > Warning Indicators > Airbag, A/C, Headlights, Security, Washer Fluid, Elec ProblemInstrument Panel, Gauges and Warning IndicatorsOpen24.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > System Diagram > Instrument Panel and Warning Indicators > Warning Indicators > Airbag, A/C, Headlights, Security, Washer Fluid, Elec ProblemGeneralOpen25.Backup Lamp — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen26.Backup Lamp — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen27.Backup Lamp — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen28.Backup Lamp — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen29.Backup Lamp — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen30.Backup Lamp — Electrical DiagramsLighting and HornsOpen31.Courtesy Lamp — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen32.Courtesy Lamp — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen33.Courtesy Lamp — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen34.Courtesy Lamp — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen35.Courtesy Lamp — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen36.Courtesy Lamp — Electrical Diagrams > Cigar LightersLighting and HornsOpen37.Courtesy Lamp — Electrical Diagrams > CourtesyLighting and HornsOpen38.Courtesy Lamp — Electrical Diagrams > Footwell CourtesyLighting and HornsOpen39.Courtesy Lamp — Electrical Diagrams > Opera LampLighting and HornsOpen40.Courtesy Lamp — Electrical Diagrams > Overhead CourtesyLighting and HornsOpen41.Courtesy Lamp — Electrical Diagrams > Rear Quarter CourtesyLighting and HornsOpen42.Hazard Warning Lamps — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen43.Hazard Warning Lamps — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen44.Hazard Warning Lamps — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen45.Hazard Warning Lamps — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen46.Hazard Warning Lamps — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen47.Hazard Warning Lamps — Electrical DiagramsLighting and HornsOpen48.Horn — 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 Riviera 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
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