Wiring Diagram Cluster
1999 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 V6-3.8L SC VIN 1
Total Vehicle Diagrams
3296
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 1999 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 > System Diagram > Headlights > Headlamps W/U50 or U2FGeneralOpen2.Electrical Diagrams > Lighting and Horns > System Diagram > Headlights > Headlamps W/UB3GeneralOpen3.Electrical Diagrams > Lighting and Horns > System Diagram > Headlights > High Beam Indicator and Head-Up Display (HUD)GeneralOpen4.Electrical Diagrams > Lighting and Horns > System Diagram > Headlights > PWR, Headlamp Switch and Headlamp ControlGeneralOpen5.Electrical Diagrams > Headlights > Headlamps W/U50 or U2FLighting and HornsOpen6.Electrical Diagrams > Headlights > Headlamps W/UB3Lighting and HornsOpen7.Electrical Diagrams > Headlights > High Beam Indicator and Head-Up Display (HUD)Lighting and HornsOpen8.Electrical Diagrams > Headlights > PWR, Headlamp Switch and Headlamp ControlLighting and HornsOpen9.Headlamp — Connector Views > High Beam Headlamp, LHLighting and HornsOpen10.Headlamp — Connector Views > High Beam Headlamp, RHLighting and HornsOpen11.Headlamp — Connector Views > Low Beam Headlamp, LHLighting and HornsOpen12.Headlamp — Connector Views > Low Beam Headlamp, RHLighting and HornsOpen13.Components > Lamps > High Beam HeadlampGeneralOpen14.Components > Lamps > High Beam Headlamp, RHGeneralOpen15.Components > Lamps > Low Beam HeadlampGeneralOpen16.Components > Lamps > Low Beam Headlamp, LHGeneralOpen17.Components > Lamps > Low Beam Headlamp, RHGeneralOpen18.Components > Miscellaneous Components > Daytime Running Lamps (DRL) ResistorGeneralOpen19.Connector Views > Headlamp > System Diagram > High Beam Headlamp, LHGeneralOpen20.Connector Views > Headlamp > System Diagram > High Beam Headlamp, RHGeneralOpen21.Connector Views > Headlamp > System Diagram > Low Beam Headlamp, LHGeneralOpen22.Connector Views > Headlamp > System Diagram > Low Beam Headlamp, RHGeneralOpen23.Electrical Diagrams > Lighting and Horns > Daytime Running LampGeneralOpen24.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp SwitchGeneralOpen25.Electrical Diagrams > Lighting and Horns > Headlamp > System DiagramGeneralOpen26.Electrical Diagrams > Lighting and Horns > System Diagram > Exterior Lights > Headlamp Switch, RFA and Park Lamp Control (W/U50 or U2F)GeneralOpen27.Electrical Diagrams > Lighting and Horns > System Diagram > Exterior Lights > Headlamp Switch, RFA and Park Lamp Control (W/UB3)GeneralOpen28.Electrical Diagrams > Lighting and Horns > System Diagram > Headlights > IGN & PNP Switches, RFA, Twilight Sentinel & Ambient Light SENGeneralOpen29.Daytime Running Lamp — Diagnostic Aids > Connector Repairs > Connector Position Assurance LocksLighting and HornsOpen30.Daytime Running Lamp — Diagnostic Aids > Connector Repairs > Pull to Seat ConnectorsLighting and HornsOpen31.Daytime Running Lamp — Diagnostic Aids > Connector Repairs > Push to Seat ConnectorsLighting and HornsOpen32.Daytime Running Lamp — Diagnostic Aids > Connector Repairs > Repairing Connector TerminalsLighting and HornsOpen33.Daytime Running Lamp — Diagnostic Aids > Connector Repairs > Terminal Position Assurance LocksLighting and HornsOpen34.Daytime Running Lamp — Diagnostic Aids > Connector Repairs > Weather Pack ConnectorsLighting and HornsOpen35.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Basic Knowledge RequiredLighting and HornsOpen36.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Checking Aftermarket AccessoriesLighting and HornsOpen37.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Intermittents and Poor Connections DiagnosisLighting and HornsOpen38.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Symptom Diagnostic ExampleLighting and HornsOpen39.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tests > Measuring VoltageLighting and HornsOpen40.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tests > Measuring Voltage DropLighting and HornsOpen41.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tests > Testing For ContinuityLighting and HornsOpen42.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tests > Testing For Electrical IntermittentsLighting and HornsOpen43.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tests > Testing For Short to GroundLighting and HornsOpen44.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Connector Test AdaptersLighting and HornsOpen45.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Digital MultimeterLighting and HornsOpen46.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Fused Jumper WiresLighting and HornsOpen47.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Probing Electrical ConnectorsLighting and HornsOpen48.Daytime Running Lamp — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Short FinderLighting and HornsOpen
Exact Vehicle Hub
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Same System, Other Vehicles
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