Wiring Diagram Cluster

1986 Pontiac Bonneville 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

48

Variant Used

Bonneville V6-231 3.8L

Total Vehicle Diagrams

417

From Diagram To Fix

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1986 Pontiac Bonneville A L L Diagnostic Trouble Codes ( DTC )

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.

1986 Pontiac Bonneville A L L Diagnostic Trouble Codes ( DTC ) →
1986 Pontiac Bonneville 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 →
U0140: Lost Communication with Body Control Module

Top Body Electrical Diagram Paths

1.Electrical Diagrams > Lighting and Horns > Trunk LampGeneralOpen2.Horn — Diagnostic AidsLighting and HornsOpen3.Horn — Diagram Information and InstructionsLighting and HornsOpen4.Horn — Electrical DiagramsLighting and HornsOpen5.Components > Miscellaneous Components > Horn Brush/Slip RingGeneralOpen6.Components > Miscellaneous Components > Power Door Locks & Power Seat Feed & Circuit BreakerGeneralOpen7.Components > Motors > Door Lock MotorsGeneralOpen8.Components > Relays > Door Lock Relay AssemblyGeneralOpen9.Components > Solenoids > Trunk Release SolenoidGeneralOpen10.Components > Switches > Horn SwitchGeneralOpen11.Electrical Diagrams > Lighting and Horns > Backup LampGeneralOpen12.Electrical Diagrams > Lighting and Horns > Brake Lamp > Front Marker, Hazard, Park, Stop & Turn LampGeneralOpen13.Electrical Diagrams > Lighting and Horns > Brake Lamp > Rear Hazard, Stop & Turn LampGeneralOpen14.Electrical Diagrams > Lighting and Horns > Cornering LampGeneralOpen15.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Courtesy & Dome Lamps > 2 DoorGeneralOpen16.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Courtesy & Dome Lamps > Four Door Less Optional Courtesy LampsGeneralOpen17.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Courtesy & Dome Lamps > Four Door With Optional Courtesy LampsGeneralOpen18.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > License Plate, Opera, Rear Marker & Tail Lamp > 2 DoorGeneralOpen19.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > License Plate, Opera, Rear Marker & Tail Lamp > 4 DoorGeneralOpen20.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > Front Marker, Hazard, Park, Stop & Turn Lamp > 2 DoorGeneralOpen21.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > Front Marker, Hazard, Park, Stop & Turn Lamp > 4 DoorGeneralOpen22.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > Rear Hazard, Stop & Turn Lamp Wiring CircuitGeneralOpen23.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Four Door (Part 1 of 2)GeneralOpen24.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Four Door (Part 2 of 2)GeneralOpen25.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Two Door (Part 1 of 2)GeneralOpen26.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Two Door (Part 2 of 2)GeneralOpen27.Electrical Diagrams > Lighting and Horns > Headlamp > System DiagramGeneralOpen28.Electrical Diagrams > Lighting and Horns > HornGeneralOpen29.Electrical Diagrams > Lighting and Horns > License Plate Lamp > 2 DoorGeneralOpen30.Electrical Diagrams > Lighting and Horns > License Plate Lamp > 4 DoorGeneralOpen31.Electrical Diagrams > Lighting and Horns > Marker Lamp > Front Marker, Hazard, Park, Stop & Turn > 2 DoorGeneralOpen32.Electrical Diagrams > Lighting and Horns > Marker Lamp > Front Marker, Hazard, Park, Stop & Turn > 4 DoorGeneralOpen33.Electrical Diagrams > Lighting and Horns > Marker Lamp > License Plate, Opera, Rear Marker & Tail Lamps > 2 DoorGeneralOpen34.Electrical Diagrams > Lighting and Horns > Marker Lamp > License Plate, Opera, Rear Marker & Tail Lamps > 4 DoorGeneralOpen35.Electrical Diagrams > Lighting and Horns > Parking Lamp > 2 DoorGeneralOpen36.Electrical Diagrams > Lighting and Horns > Parking Lamp > 4 DoorGeneralOpen37.Electrical Diagrams > Lighting and Horns > System DiagramGeneralOpen38.Electrical Diagrams > Lighting and Horns > Tail Lamp > 2 DoorGeneralOpen39.Electrical Diagrams > Lighting and Horns > Tail Lamp > 4 DoorGeneralOpen40.Electrical Diagrams > Lighting and Horns > Turn Signals > Front Marker, Hazard, Park, Stop & Turn Lamps > 2 DoorGeneralOpen41.Electrical Diagrams > Lighting and Horns > Turn Signals > Front Marker, Hazard, Park, Stop & Turn Lamps > 4 DoorGeneralOpen42.Electrical Diagrams > Lighting and Horns > Turn Signals > Rear Hazard, Stop & Turn LampsGeneralOpen43.Backup Lamp — Diagnostic AidsLighting and HornsOpen44.Backup Lamp — Diagram Information and InstructionsLighting and HornsOpen45.Backup Lamp — Electrical DiagramsLighting and HornsOpen46.Diagnostic AidsLighting and HornsOpen47.Diagram Information and InstructionsLighting and HornsOpen48.Electrical DiagramsLighting and HornsOpen

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OEM Manual Evidence

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1986 Pontiac Bonneville A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 1986 Pontiac Firebird V8-305 5.0L Service Manual | Operation CHARM Operation CHARM : Car repair ma...

1986 Pontiac Bonneville A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 1986 Pontiac J2000/Sunbird L4-112 1.8L Service Manual | Operation CHARM Operation CHARM : Car repa...

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 Bonneville Wiring Pages

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