Wiring Diagram Cluster

1985 Oldsmobile Cutlass Supreme Body Electrical Wiring Diagram

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

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Matched Diagrams

45

Variant Used

Cutlass Supreme V6-231 3.8L

Total Vehicle Diagrams

286

From Diagram To Fix

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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.

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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 →
U0140: Lost Communication with Body Control Module

Top Body Electrical Diagram Paths

1.Electrical Diagrams > Lighting and Horns > Trunk LampGeneralOpen2.Electrical Diagrams > Lighting and Horns > Backup LampGeneralOpen3.Electrical Diagrams > Lighting and Horns > Brake LampGeneralOpen4.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > 2 DoorGeneralOpen5.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > 4 DoorGeneralOpen6.Electrical Diagrams > Lighting and Horns > Dome Lamp > 2 DoorGeneralOpen7.Electrical Diagrams > Lighting and Horns > Dome Lamp > 4 DoorGeneralOpen8.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > 2 DoorGeneralOpen9.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > 4 DoorGeneralOpen10.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Part 1 of 4GeneralOpen11.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Part 2 of 4GeneralOpen12.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Part 3 of 4GeneralOpen13.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Part 4 of 4GeneralOpen14.Electrical Diagrams > Lighting and Horns > Headlamp > System DiagramGeneralOpen15.Electrical Diagrams > Lighting and Horns > HornGeneralOpen16.Electrical Diagrams > Lighting and Horns > License Plate Lamp > 2 DoorGeneralOpen17.Electrical Diagrams > Lighting and Horns > License Plate Lamp > 4 DoorGeneralOpen18.Electrical Diagrams > Lighting and Horns > Marker Lamp > Front Marker, Hazard, Park, Stop & Turn > 2 DoorGeneralOpen19.Electrical Diagrams > Lighting and Horns > Marker Lamp > Front Marker, Hazard, Park, Stop & Turn > 4 DoorGeneralOpen20.Electrical Diagrams > Lighting and Horns > Marker Lamp > License, Rear Marker Rear Park & Tail Lamps > 2 DoorGeneralOpen21.Electrical Diagrams > Lighting and Horns > Marker Lamp > License, Rear Marker Rear Park & Tail Lamps > 4 DoorGeneralOpen22.Electrical Diagrams > Lighting and Horns > Parking Lamp > 2 DoorGeneralOpen23.Electrical Diagrams > Lighting and Horns > Parking Lamp > 4 DoorGeneralOpen24.Electrical Diagrams > Lighting and Horns > System DiagramGeneralOpen25.Electrical Diagrams > Lighting and Horns > Tail Lamp > 2 DoorGeneralOpen26.Electrical Diagrams > Lighting and Horns > Tail Lamp > 4 DoorGeneralOpen27.Electrical Diagrams > Lighting and Horns > Turn Signals > 2 DoorGeneralOpen28.Electrical Diagrams > Lighting and Horns > Turn Signals > 4 DoorGeneralOpen29.Electrical Diagrams > Trunk / Liftgate SolenoidGeneralOpen30.Backup Lamp — Diagnostic AidsLighting and HornsOpen31.Backup Lamp — Diagram Information and InstructionsLighting and HornsOpen32.Backup Lamp — Electrical DiagramsLighting and HornsOpen33.Diagnostic AidsLighting and HornsOpen34.Diagram Information and InstructionsLighting and HornsOpen35.Electrical DiagramsLighting and HornsOpen36.Headlamp — Diagnostic AidsLighting and HornsOpen37.Headlamp — Diagram Information and InstructionsLighting and HornsOpen38.Headlamp — Electrical DiagramsLighting and HornsOpen39.Seats — Diagnostic AidsBody and FrameOpen40.Seats — Diagram Information and InstructionsBody and FrameOpen41.Seats — Electrical DiagramsBody and FrameOpen42.Turn Signals — Diagnostic AidsLighting and HornsOpen43.Turn Signals — Diagram Information and InstructionsLighting and HornsOpen44.Turn Signals — Electrical Diagrams > 2 DoorLighting and HornsOpen45.Turn Signals — Electrical Diagrams > 4 DoorLighting and HornsOpen

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Likely Trouble Codes for This System

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B1318: Battery Voltage LowCode

Body/Electrical code commonly seen during body electrical diagnosis.

U0140: Lost Communication with Body Control ModuleCode

Network/Communication code commonly seen during body electrical diagnosis.

More Cutlass Supreme Wiring Pages

Starter Wiring DiagramAlternator Wiring DiagramHeadlight Wiring DiagramA/C & Heater Wiring DiagramPower Window Wiring DiagramInstrument Cluster Wiring DiagramWiper & Washer Wiring DiagramTransmission Wiring DiagramCruise Control Wiring DiagramEngine Management Wiring Diagram

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