Wiring Diagram Cluster
1985 Pontiac Bonneville Body Electrical Wiring Diagram
Find body control module wiring, door lock circuits, interior lighting paths, and horn/alarm schematics.
Matched Diagrams
48
Variant Used
Bonneville V6-231 3.8L
Total Vehicle Diagrams
432
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 1985 Pontiac Bonneville 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.
1985 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 →Top Body Electrical Diagram Paths
1.Horn — Diagnostic AidsLighting and HornsOpen2.Horn — Diagram Information and InstructionsLighting and HornsOpen3.Horn — Electrical DiagramsLighting and HornsOpen4.Components > Motors > Door Lock MotorsGeneralOpen5.Components > Relays > Door Lock Relay AssemblyGeneralOpen6.Components > Relays > Horn RelayGeneralOpen7.Components > Solenoids > Station Wagon Tailgate Release SolenoidGeneralOpen8.Components > Solenoids > Trunk Release SolenoidGeneralOpen9.Components > Switches > Driver's Door Lock SwitchGeneralOpen10.Components > Switches > Passenger's Door Lock SwitchGeneralOpen11.Components > Switches > Station Wagon Tailgate Release SwitchGeneralOpen12.Components > Switches > Trunk Release SwitchGeneralOpen13.Electrical Diagrams > HornGeneralOpen14.Electrical Diagrams > Trunk / Liftgate SolenoidGeneralOpen15.Electrical Diagrams > Trunk LampGeneralOpen16.Backup Lamp — Diagnostic AidsLighting and HornsOpen17.Backup Lamp — Diagram Information and InstructionsLighting and HornsOpen18.Backup Lamp — Electrical DiagramsLighting and HornsOpen19.Courtesy Lamp — Diagnostic AidsLighting and HornsOpen20.Courtesy Lamp — Diagram Information and InstructionsLighting and HornsOpen21.Courtesy Lamp — Electrical Diagrams > Courtesy & Dome Lamps > 2 DoorLighting and HornsOpen22.Courtesy Lamp — Electrical Diagrams > Courtesy & Dome Lamps > 4 Door > Less Door Courtesy LampLighting and HornsOpen23.Courtesy Lamp — Electrical Diagrams > Courtesy & Dome Lamps > 4 Door > With Door Courtesy LampsLighting and HornsOpen24.Courtesy Lamp — Electrical Diagrams > License Plate, Opera, Rear Marker & Tail Lamp > 2 DoorLighting and HornsOpen25.Courtesy Lamp — Electrical Diagrams > License Plate, Opera, Rear Marker & Tail Lamp > 4 DoorLighting and HornsOpen26.Hazard Warning Lamps — Diagnostic AidsLighting and HornsOpen27.Hazard Warning Lamps — Diagram Information and InstructionsLighting and HornsOpen28.Hazard Warning Lamps — Electrical Diagrams > Front Marker, Hazard, Park, Stop & Turn Lamp > 2 DoorLighting and HornsOpen29.Hazard Warning Lamps — Electrical Diagrams > Front Marker, Hazard, Park, Stop & Turn Lamp > 4 DoorLighting and HornsOpen30.Hazard Warning Lamps — Electrical Diagrams > Rear Hazard, Stop & Turn Lamp Wiring CircuitLighting and HornsOpen31.Headlamp — Diagnostic AidsLighting and HornsOpen32.Headlamp — Diagram Information and InstructionsLighting and HornsOpen33.Headlamp — Electrical DiagramsLighting and HornsOpen34.Locks > Power Locks — Diagnostic AidsBody and FrameOpen35.Locks > Power Locks — Diagram Information and InstructionsBody and FrameOpen36.Locks > Power Locks — Electrical Diagrams > Four DoorBody and FrameOpen37.Locks > Power Locks — Electrical Diagrams > Two DoorBody and FrameOpen38.Roof and Associated Components > Sunroof / Moonroof — Diagnostic AidsBody and FrameOpen39.Roof and Associated Components > Sunroof / Moonroof — Diagram Information and InstructionsBody and FrameOpen40.Roof and Associated Components > Sunroof / Moonroof — Electrical DiagramsBody and FrameOpen41.Seats — Diagnostic AidsBody and FrameOpen42.Seats — Diagram Information and InstructionsBody and FrameOpen43.Seats — Electrical Diagrams > Part 1 of 2Body and FrameOpen44.Seats — Electrical Diagrams > Part 2 of 2Body and FrameOpen45.Turn Signals — Diagnostic AidsLighting and HornsOpen46.Turn Signals — Diagram Information and InstructionsLighting and HornsOpen47.Turn Signals — Electrical Diagrams > Front Marker, Hazard, Park, Stop & Turn Lamps > 2 DoorLighting and HornsOpen48.Turn Signals — Electrical Diagrams > Front Marker, Hazard, Park, Stop & Turn Lamps > 4 DoorLighting and HornsOpen
Exact Vehicle Hub
Browse →OEM Manual Evidence
Browse →1985 Pontiac Bonneville A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1985 Pontiac J2000/Sunbird L4-112 1.8L Service Manual | Operation CHARM Operation CHARM : Car repa...
1985 Pontiac Bonneville A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1985 Pontiac Firebird V8-305 5.0L Service Manual | Operation CHARM Operation CHARM : Car repair ma...
Likely Trouble Codes for This System
Browse →More Bonneville Wiring Pages
Same System, Other Vehicles
1990 Toyota Supra Body Electrical Wiring Diagram1993 Toyota Camry Sedan Body Electrical Wiring Diagram1993 Toyota Camry Wagon Body Electrical Wiring Diagram1990 Honda Prelude Body Electrical Wiring Diagram1994 Toyota Camry Sedan 2-Door Body Electrical Wiring Diagram1994 Toyota Camry Sedan 4-Door Body Electrical Wiring Diagram1994 Toyota Celica Body Electrical Wiring Diagram2013 Toyota Camry Body Electrical Wiring Diagram