Wiring Diagram Cluster
1999 Buick Century Body Electrical Wiring Diagram
Find body control module wiring, door lock circuits, interior lighting paths, and horn/alarm schematics.
Matched Diagrams
48
Variant Used
Century V6-3100 3.1L VIN M SFI
Total Vehicle Diagrams
3299
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 1999 Buick Century hub with repairs, specs, codes, and other systems already tied to this car.
View vehicle repair hub →OEM source
Factory Manual Evidence
When there is no clean repair shortcut for this system, drop into the OEM manual sections that usually carry the authoritative test path.
1999 Buick Century A L L Diagnostic Trouble Codes ( DTC ) →Diagnostic signal
Codes Often Seen With This System
Use the code cluster when wiring faults overlap with check-engine or module-level diagnostics.
B1318: Battery Voltage Low →Top Body Electrical Diagram Paths
1.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Wiring Repairs > SIR Wiring Repairs > SIR Connector (Plastic Body and Terminal Metal Pin) RepairBody and FrameOpen2.Horn — Diagnostic Aids > Wiring Repairs > SIR Wiring Repairs > SIR Connector (Plastic Body and Terminal Metal Pin) RepairLighting and HornsOpen3.Locks > Keyless Entry — Diagnostic Aids > Wiring Repairs > SIR Wiring Repairs > SIR Connector (Plastic Body and Terminal Metal Pin) RepairBody and FrameOpen4.Locks > Keyless Entry — Electrical Diagrams > Keyless Entry Schematics > Door Lock Relays and ActuatorsBody and FrameOpen5.Antitheft and Alarm Systems > Keyless Entry — Diagnostic Aids > Wiring Repairs > SIR Wiring Repairs > SIR Connector (Plastic Body and Terminal Metal Pin) RepairAccessories and Optional EquipmentOpen6.Antitheft and Alarm Systems > Keyless Entry — Electrical Diagrams > Keyless Entry Schematics > Door Lock Relays and ActuatorsAccessories and Optional EquipmentOpen7.Electrical Diagrams > Lighting and Horns > System Diagram > Interior Lights > Interior Lights Dimming SchematicsGeneralOpen8.Electrical Diagrams > Lighting and Horns > System Diagram > Interior Lights > Interior Lights Schematics > Console Compartment Lamp and SwitchGeneralOpen9.Electrical Diagrams > Lighting and Horns > System Diagram > Interior Lights > Interior Lights Schematics > HVAC Control, Instrument Cluster, RadioGeneralOpen10.Electrical Diagrams > Lighting and Horns > System Diagram > Interior Lights > Interior Lights Schematics > Inadvertent Batt Rundown Protection & Theater Dimming 1 GND O/PGeneralOpen11.Electrical Diagrams > Lighting and Horns > System Diagram > Interior Lights > Interior Lights Schematics > Interior Lights Control InputsGeneralOpen12.Electrical Diagrams > Lighting and Horns > System Diagram > Interior Lights > Interior Lights Schematics > Power, Ground and Serial DataGeneralOpen13.Electrical Diagrams > Lighting and Horns > System Diagram > Interior Lights > Interior Lights Schematics > Theater Dimming 2 Output ControlGeneralOpen14.Electrical Diagrams > Lighting and Horns > System Diagram > Interior Lights > Interior Lights Schematics > Window/Door/TCS SwitchGeneralOpen15.Electrical Diagrams > Locks > Keyless Entry > Keyless Entry Schematics > Door Lock Relays and ActuatorsGeneralOpen16.Electrical Diagrams > Powertrain Management > Computers and Control Systems > Body Control Module > Automatic Door Locks InputsGeneralOpen17.Electrical Diagrams > Powertrain Management > Computers and Control Systems > Body Control Module > Automatic Door Locks OutputsGeneralOpen18.Electrical Diagrams > Powertrain Management > Computers and Control Systems > Body Control Module > Daytime Running Lights, Fog Lights and HornsGeneralOpen19.Electrical Diagrams > Powertrain Management > Computers and Control Systems > Body Control Module > Interior Lights Control - Inadvertent BATT Rundown ProtectionGeneralOpen20.Electrical Diagrams > Powertrain Management > Computers and Control Systems > Body Control Module > Interior Lights Control InputsGeneralOpen21.Electrical Diagrams > Powertrain Management > Computers and Control Systems > Body Control Module > Interior Lights Theater Dimming 2 Output ControlGeneralOpen22.Diagnostic Aids > Wiring Repairs > SIR Wiring Repairs > SIR Connector (Plastic Body and Terminal Metal Pin) RepairLighting and HornsOpen23.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Connector Repairs > Connector Position Assurance LocksBody and FrameOpen24.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Connector Repairs > Pull to Seat ConnectorsBody and FrameOpen25.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Connector Repairs > Push to Seat ConnectorsBody and FrameOpen26.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Connector Repairs > Repairing Connector TerminalsBody and FrameOpen27.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Connector Repairs > Terminal Position Assurance LocksBody and FrameOpen28.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Connector Repairs > Weather Pack ConnectorsBody and FrameOpen29.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Basic Knowledge RequiredBody and FrameOpen30.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Checking Aftermarket AccessoriesBody and FrameOpen31.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Intermittents and Poor Connections DiagnosisBody and FrameOpen32.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Symptom Diagnostic ExampleBody and FrameOpen33.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tests > Measuring VoltageBody and FrameOpen34.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tests > Measuring Voltage DropBody and FrameOpen35.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tests > Testing For ContinuityBody and FrameOpen36.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tests > Testing For Electrical IntermittentsBody and FrameOpen37.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tests > Testing For Short to GroundBody and FrameOpen38.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Connector Test AdaptersBody and FrameOpen39.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Digital MultimeterBody and FrameOpen40.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Fused Jumper WiresBody and FrameOpen41.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Probing Electrical ConnectorsBody and FrameOpen42.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Short FinderBody and FrameOpen43.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Electrical Diagnostic Procedures > Troubleshooting Tools > Test LampBody and FrameOpen44.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Wiring Repairs > Circuit Protection > Circuit BreakersBody and FrameOpen45.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Wiring Repairs > Circuit Protection > FusesBody and FrameOpen46.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Wiring Repairs > Circuit Protection > Fusible LinksBody and FrameOpen47.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Wiring Repairs > Flat Wire RepairsBody and FrameOpen48.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Wiring Repairs > HO2S Wiring RepairsBody and FrameOpen
Exact Vehicle Hub
Browse →OEM Manual Evidence
Browse →1999 Buick Century A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1999 Buick Century V6-3100 3.1L VIN M SFI Service Manual | Operation CHARM Operation CHARM : Car r...
1999 Buick Century A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1999 Buick Regal V6-3.8L VIN K Service Manual | Operation CHARM Operation CHARM : Car repair manua...
1999 Buick Century A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1999 Buick Regal V6-3.8L SC VIN 1 Service Manual | Operation CHARM Operation CHARM : Car repair ma...
1999 Buick Century A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1999 Buick Park Avenue V6-3.8L VIN K Service Manual | Operation CHARM Operation CHARM : Car repair...
Likely Trouble Codes for This System
Browse →More Century Wiring Pages
Starter Wiring DiagramAlternator Wiring DiagramFuel Pump Wiring DiagramHeadlight 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 Diagram
Same System, Other Vehicles
2010 Toyota Matrix AWD Body Electrical Wiring Diagram2010 Toyota Matrix FWD Body Electrical Wiring Diagram2010 Toyota Prius Body Electrical Wiring Diagram1998 Toyota Supra Body Electrical Wiring Diagram1998 Toyota Supra Sport Roof Body Electrical Wiring Diagram2010 Toyota Venza AWD Body Electrical Wiring Diagram2010 Toyota Venza FWD Body Electrical Wiring Diagram1997 Toyota Celica GT Convertible Body Electrical Wiring Diagram