Wiring Diagram Cluster
1990 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
769
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 1990 Buick Riviera 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.
1990 Buick Riviera 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.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > System Diagram > Rear Reading, Courtesy, Trunk & Glove BoxGeneralOpen2.Electrical Diagrams > Lighting and Horns > Trunk LampGeneralOpen3.Courtesy Lamp — Electrical Diagrams > Rear Reading, Courtesy, Trunk & Glove BoxLighting and HornsOpen4.Doors, Hood and Trunk > Fuel Door — Diagnostic Aids > Pull-to-Seat ConnectorsBody and FrameOpen5.Doors, Hood and Trunk > Fuel Door — Diagnostic Aids > Push-to-Seat ConnectorsBody and FrameOpen6.Doors, Hood and Trunk > Fuel Door — Diagram Information and Instructions > Cell ReferencesBody and FrameOpen7.Doors, Hood and Trunk > Fuel Door — Diagram Information and Instructions > Schematic SymbolsBody and FrameOpen8.Doors, Hood and Trunk > Fuel Door — Diagram Information and Instructions > Symbol IdentificationBody and FrameOpen9.Doors, Hood and Trunk > Fuel Door — Diagram Information and Instructions > Wire Color Code IdentificationBody and FrameOpen10.Doors, Hood and Trunk > Fuel Door — Electrical DiagramsBody and FrameOpen11.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Pull-to-Seat ConnectorsBody and FrameOpen12.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Push-to-Seat ConnectorsBody and FrameOpen13.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and Instructions > Cell ReferencesBody and FrameOpen14.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and Instructions > Schematic SymbolsBody and FrameOpen15.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and Instructions > Symbol IdentificationBody and FrameOpen16.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and Instructions > Wire Color Code IdentificationBody and FrameOpen17.Doors, Hood and Trunk > Trunk / Liftgate — Electrical Diagrams > Trunk Lid Pull-DownBody and FrameOpen18.Doors, Hood and Trunk > Trunk / Liftgate — Electrical Diagrams > Trunk Lid ReleaseBody and FrameOpen19.Horn — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen20.Horn — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen21.Horn — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen22.Horn — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen23.Horn — Diagram Information and Instructions > Symbol IdentificationLighting and HornsOpen24.Horn — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen25.Horn — Electrical DiagramsLighting and HornsOpen26.Locks > Keyless Entry — Diagnostic Aids > Pull-to-Seat ConnectorsBody and FrameOpen27.Locks > Keyless Entry — Diagnostic Aids > Push-to-Seat ConnectorsBody and FrameOpen28.Locks > Keyless Entry — Diagram Information and Instructions > Cell ReferencesBody and FrameOpen29.Locks > Keyless Entry — Diagram Information and Instructions > Schematic SymbolsBody and FrameOpen30.Locks > Keyless Entry — Diagram Information and Instructions > Symbol IdentificationBody and FrameOpen31.Locks > Keyless Entry — Diagram Information and Instructions > Wire Color Code IdentificationBody and FrameOpen32.Locks > Keyless Entry — Electrical DiagramsBody and FrameOpen33.Locks > Power Locks — Electrical Diagrams > With Keyless EntryBody and FrameOpen34.Locks > Power Locks — Electrical Diagrams > Without Keyless EntryBody and FrameOpen35.Antitheft and Alarm Systems > Keyless Entry — Diagnostic Aids > Pull-to-Seat ConnectorsAccessories and Optional EquipmentOpen36.Antitheft and Alarm Systems > Keyless Entry — Diagnostic Aids > Push-to-Seat ConnectorsAccessories and Optional EquipmentOpen37.Antitheft and Alarm Systems > Keyless Entry — Diagram Information and Instructions > Cell ReferencesAccessories and Optional EquipmentOpen38.Antitheft and Alarm Systems > Keyless Entry — Diagram Information and Instructions > Schematic SymbolsAccessories and Optional EquipmentOpen39.Antitheft and Alarm Systems > Keyless Entry — Diagram Information and Instructions > Symbol IdentificationAccessories and Optional EquipmentOpen40.Antitheft and Alarm Systems > Keyless Entry — Diagram Information and Instructions > Wire Color Code IdentificationAccessories and Optional EquipmentOpen41.Antitheft and Alarm Systems > Keyless Entry — Electrical DiagramsAccessories and Optional EquipmentOpen42.Components > Miscellaneous Components > Door Lock Fiber Optic LightGeneralOpen43.Components > Miscellaneous Components > LH Door Lock Fiber Optic LightGeneralOpen44.Components > Miscellaneous Components > Trunk Lid Pull Down UnitGeneralOpen45.Components > Modules > Body Computer ModuleGeneralOpen46.Components > Modules > Keyless Entry ModuleGeneralOpen47.Components > Motors > Door Lock MotorsGeneralOpen48.Components > Relays > Door Lock RelayGeneralOpen
Exact Vehicle Hub
Browse →OEM Manual Evidence
Browse →1990 Buick Riviera A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1990 Buick Riviera V6-231 3.8L VIN C SFI Service Manual | Operation CHARM Operation CHARM : Car re...
1990 Buick Riviera A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1990 Buick Reatta V6-231 3.8L VIN C SFI Service Manual | Operation CHARM Operation CHARM : Car rep...
Likely Trouble Codes for This System
Browse →More Riviera Wiring Pages
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Same System, Other Vehicles
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