Wiring Diagram Cluster
1986 Pontiac Bonneville 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
Bonneville V6-231 3.8L
Total Vehicle Diagrams
417
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 1986 Pontiac Bonneville 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 > Headlamp Switch > Four Door (Part 1 of 2)GeneralOpen2.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Four Door (Part 2 of 2)GeneralOpen3.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Two Door (Part 1 of 2)GeneralOpen4.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Two Door (Part 2 of 2)GeneralOpen5.Electrical Diagrams > Lighting and Horns > Headlamp > System DiagramGeneralOpen6.Headlamp — Diagnostic AidsLighting and HornsOpen7.Headlamp — Diagram Information and InstructionsLighting and HornsOpen8.Headlamp — Electrical DiagramsLighting and HornsOpen9.Electrical Diagrams > Lighting and Horns > Backup LampGeneralOpen10.Electrical Diagrams > Lighting and Horns > Brake Lamp > Front Marker, Hazard, Park, Stop & Turn LampGeneralOpen11.Electrical Diagrams > Lighting and Horns > Brake Lamp > Rear Hazard, Stop & Turn LampGeneralOpen12.Electrical Diagrams > Lighting and Horns > Cornering LampGeneralOpen13.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Courtesy & Dome Lamps > 2 DoorGeneralOpen14.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Courtesy & Dome Lamps > Four Door Less Optional Courtesy LampsGeneralOpen15.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Courtesy & Dome Lamps > Four Door With Optional Courtesy LampsGeneralOpen16.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > License Plate, Opera, Rear Marker & Tail Lamp > 2 DoorGeneralOpen17.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > License Plate, Opera, Rear Marker & Tail Lamp > 4 DoorGeneralOpen18.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > Front Marker, Hazard, Park, Stop & Turn Lamp > 2 DoorGeneralOpen19.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > Front Marker, Hazard, Park, Stop & Turn Lamp > 4 DoorGeneralOpen20.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > Rear Hazard, Stop & Turn Lamp Wiring CircuitGeneralOpen21.Electrical Diagrams > Lighting and Horns > HornGeneralOpen22.Electrical Diagrams > Lighting and Horns > License Plate Lamp > 2 DoorGeneralOpen23.Electrical Diagrams > Lighting and Horns > License Plate Lamp > 4 DoorGeneralOpen24.Electrical Diagrams > Lighting and Horns > Marker Lamp > Front Marker, Hazard, Park, Stop & Turn > 2 DoorGeneralOpen25.Electrical Diagrams > Lighting and Horns > Marker Lamp > Front Marker, Hazard, Park, Stop & Turn > 4 DoorGeneralOpen26.Electrical Diagrams > Lighting and Horns > Marker Lamp > License Plate, Opera, Rear Marker & Tail Lamps > 2 DoorGeneralOpen27.Electrical Diagrams > Lighting and Horns > Marker Lamp > License Plate, Opera, Rear Marker & Tail Lamps > 4 DoorGeneralOpen28.Electrical Diagrams > Lighting and Horns > Parking Lamp > 2 DoorGeneralOpen29.Electrical Diagrams > Lighting and Horns > Parking Lamp > 4 DoorGeneralOpen30.Electrical Diagrams > Lighting and Horns > System DiagramGeneralOpen31.Electrical Diagrams > Lighting and Horns > Tail Lamp > 2 DoorGeneralOpen32.Electrical Diagrams > Lighting and Horns > Tail Lamp > 4 DoorGeneralOpen33.Electrical Diagrams > Lighting and Horns > Trunk LampGeneralOpen34.Electrical Diagrams > Lighting and Horns > Turn Signals > Front Marker, Hazard, Park, Stop & Turn Lamps > 2 DoorGeneralOpen35.Electrical Diagrams > Lighting and Horns > Turn Signals > Front Marker, Hazard, Park, Stop & Turn Lamps > 4 DoorGeneralOpen36.Electrical Diagrams > Lighting and Horns > Turn Signals > Rear Hazard, Stop & Turn LampsGeneralOpen37.Backup Lamp — Diagnostic AidsLighting and HornsOpen38.Backup Lamp — Diagram Information and InstructionsLighting and HornsOpen39.Backup Lamp — Electrical DiagramsLighting and HornsOpen40.Diagnostic AidsLighting and HornsOpen41.Diagram Information and InstructionsLighting and HornsOpen42.Electrical DiagramsLighting and HornsOpen43.Hazard Warning Lamps — Diagnostic AidsLighting and HornsOpen44.Hazard Warning Lamps — Diagram Information and InstructionsLighting and HornsOpen45.Hazard Warning Lamps — Electrical Diagrams > Front Marker, Hazard, Park, Stop & Turn Lamp > 2 DoorLighting and HornsOpen46.Hazard Warning Lamps — Electrical Diagrams > Front Marker, Hazard, Park, Stop & Turn Lamp > 4 DoorLighting and HornsOpen47.Hazard Warning Lamps — Electrical Diagrams > Rear Hazard, Stop & Turn Lamp Wiring CircuitLighting and HornsOpen48.Horn — Diagnostic AidsLighting and HornsOpen
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