Wiring Diagram Cluster

1989 Buick Riviera Body Electrical Wiring Diagram

Find body control module wiring, door lock circuits, interior lighting paths, and horn/alarm schematics.

Matched Diagrams

48

Variant Used

Riviera V6-231 3.8L VIN C SFI

Total Vehicle Diagrams

780

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 1989 Buick Riviera hub with repairs, specs, codes, and other systems already tied to this car.

View vehicle repair hub β†’

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.

1989 Buick Riviera A L L Diagnostic Trouble Codes ( DTC ) β†’

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 β†’

Top Body Electrical Diagram Paths

1.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Interior Lamps > TrunkGeneralOpen2.Courtesy Lamp β€” Electrical Diagrams > Interior Lamps > TrunkLighting and HornsOpen3.Doors, Hood and Trunk > Fuel Door β€” Diagnostic Aids > Pull-to-Seat ConnectorsBody and FrameOpen4.Doors, Hood and Trunk > Fuel Door β€” Diagnostic Aids > Push-to-Seat ConnectorsBody and FrameOpen5.Doors, Hood and Trunk > Fuel Door β€” Diagram Information and Instructions > Cell ReferencesBody and FrameOpen6.Doors, Hood and Trunk > Fuel Door β€” Diagram Information and Instructions > Schematic SymbolsBody and FrameOpen7.Doors, Hood and Trunk > Fuel Door β€” Diagram Information and Instructions > Symbol IdentificationBody and FrameOpen8.Doors, Hood and Trunk > Fuel Door β€” Diagram Information and Instructions > Wire Color Code IdentificationBody and FrameOpen9.Doors, Hood and Trunk > Fuel Door β€” Electrical DiagramsBody and FrameOpen10.Doors, Hood and Trunk > Trunk / Liftgate β€” Diagnostic Aids > Pull-to-Seat ConnectorsBody and FrameOpen11.Doors, Hood and Trunk > Trunk / Liftgate β€” Diagnostic Aids > Push-to-Seat ConnectorsBody and FrameOpen12.Doors, Hood and Trunk > Trunk / Liftgate β€” Diagram Information and Instructions > Cell ReferencesBody and FrameOpen13.Doors, Hood and Trunk > Trunk / Liftgate β€” Diagram Information and Instructions > Schematic SymbolsBody and FrameOpen14.Doors, Hood and Trunk > Trunk / Liftgate β€” Diagram Information and Instructions > Symbol IdentificationBody and FrameOpen15.Doors, Hood and Trunk > Trunk / Liftgate β€” Diagram Information and Instructions > Wire Color Code IdentificationBody and FrameOpen16.Doors, Hood and Trunk > Trunk / Liftgate β€” Electrical Diagrams > Trunk Lid Pull-DownBody and FrameOpen17.Doors, Hood and Trunk > Trunk / Liftgate β€” Electrical Diagrams > Trunk Lid ReleaseBody and FrameOpen18.Horn β€” Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen19.Horn β€” Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen20.Horn β€” Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen21.Horn β€” Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen22.Horn β€” Diagram Information and Instructions > Symbol IdentificationLighting and HornsOpen23.Horn β€” Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen24.Horn β€” Electrical DiagramsLighting and HornsOpen25.Locks > Keyless Entry β€” Diagnostic Aids > Pull-to-Seat ConnectorsBody and FrameOpen26.Locks > Keyless Entry β€” Diagnostic Aids > Push-to-Seat ConnectorsBody and FrameOpen27.Locks > Keyless Entry β€” Diagram Information and Instructions > Cell ReferencesBody and FrameOpen28.Locks > Keyless Entry β€” Diagram Information and Instructions > Schematic SymbolsBody and FrameOpen29.Locks > Keyless Entry β€” Diagram Information and Instructions > Symbol IdentificationBody and FrameOpen30.Locks > Keyless Entry β€” Diagram Information and Instructions > Wire Color Code IdentificationBody and FrameOpen31.Locks > Keyless Entry β€” Electrical DiagramsBody and FrameOpen32.Antitheft and Alarm Systems > Keyless Entry β€” Diagnostic Aids > Pull-to-Seat ConnectorsAccessories and Optional EquipmentOpen33.Antitheft and Alarm Systems > Keyless Entry β€” Diagnostic Aids > Push-to-Seat ConnectorsAccessories and Optional EquipmentOpen34.Antitheft and Alarm Systems > Keyless Entry β€” Diagram Information and Instructions > Cell ReferencesAccessories and Optional EquipmentOpen35.Antitheft and Alarm Systems > Keyless Entry β€” Diagram Information and Instructions > Schematic SymbolsAccessories and Optional EquipmentOpen36.Antitheft and Alarm Systems > Keyless Entry β€” Diagram Information and Instructions > Symbol IdentificationAccessories and Optional EquipmentOpen37.Antitheft and Alarm Systems > Keyless Entry β€” Diagram Information and Instructions > Wire Color Code IdentificationAccessories and Optional EquipmentOpen38.Antitheft and Alarm Systems > Keyless Entry β€” Electrical DiagramsAccessories and Optional EquipmentOpen39.Components > Miscellaneous Components > Door Lock Fiber Optic LightGeneralOpen40.Components > Miscellaneous Components > LH Door Lock Fiber Optic LightGeneralOpen41.Components > Miscellaneous Components > Trunk Lid Pull Down UnitGeneralOpen42.Components > Modules > Body Computer ModuleGeneralOpen43.Components > Modules > Keyless Entry ModuleGeneralOpen44.Components > Motors > Door Lock MotorsGeneralOpen45.Components > Relays > Door Lock RelayGeneralOpen46.Components > Relays > Trunk Lid Release RelayGeneralOpen47.Components > Solenoids > Trunk Lid Release SolenoidGeneralOpen48.Components > Switches > Trunk Lid Key Cylinder SwitchGeneralOpen