Wiring Diagram Cluster
1986 Pontiac Grand Prix Body Electrical Wiring Diagram
Find body control module wiring, door lock circuits, interior lighting paths, and horn/alarm schematics.
Matched Diagrams
48
Variant Used
Grand Prix V6-231 3.8L
Total Vehicle Diagrams
394
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 1986 Pontiac Grand Prix 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.
1986 Pontiac Grand Prix 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 > 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 LampsGeneralOpen16.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > License Plate, Opera, Rear Marker & Tail LampGeneralOpen17.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > Front Marker, Hazard, Park, Stop & Turn LampGeneralOpen18.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > Rear Hazard, Stop & Turn Lamp Wiring CircuitGeneralOpen19.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Two Door (Part 1 of 2)GeneralOpen20.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Two Door (Part 2 of 2)GeneralOpen21.Electrical Diagrams > Lighting and Horns > Headlamp > System DiagramGeneralOpen22.Electrical Diagrams > Lighting and Horns > HornGeneralOpen23.Electrical Diagrams > Lighting and Horns > License Plate LampGeneralOpen24.Electrical Diagrams > Lighting and Horns > Marker Lamp > Front Marker, Hazard, Park, Stop & TurnGeneralOpen25.Electrical Diagrams > Lighting and Horns > Marker Lamp > License Plate, Opera, Rear Marker & Tail LampsGeneralOpen26.Electrical Diagrams > Lighting and Horns > Parking LampGeneralOpen27.Electrical Diagrams > Lighting and Horns > System DiagramGeneralOpen28.Electrical Diagrams > Lighting and Horns > Tail LampGeneralOpen29.Electrical Diagrams > Lighting and Horns > Turn Signals > Front Marker, Hazard, Park, Stop & Turn LampsGeneralOpen30.Electrical Diagrams > Lighting and Horns > Turn Signals > Rear Hazard, Stop & Turn LampsGeneralOpen31.Backup Lamp — Diagnostic AidsLighting and HornsOpen32.Backup Lamp — Diagram Information and InstructionsLighting and HornsOpen33.Backup Lamp — Electrical DiagramsLighting and HornsOpen34.Diagnostic AidsLighting and HornsOpen35.Diagram Information and InstructionsLighting and HornsOpen36.Electrical DiagramsLighting and HornsOpen37.Hazard Warning Lamps — Diagnostic AidsLighting and HornsOpen38.Hazard Warning Lamps — Diagram Information and InstructionsLighting and HornsOpen39.Hazard Warning Lamps — Electrical Diagrams > Front Marker, Hazard, Park, Stop & Turn LampLighting and HornsOpen40.Hazard Warning Lamps — Electrical Diagrams > Rear Hazard, Stop & Turn Lamp Wiring CircuitLighting and HornsOpen41.Headlamp — Diagnostic AidsLighting and HornsOpen42.Headlamp — Diagram Information and InstructionsLighting and HornsOpen43.Headlamp — Electrical DiagramsLighting and HornsOpen44.Locks > Power Locks — Diagnostic AidsBody and FrameOpen45.Locks > Power Locks — Diagram Information and InstructionsBody and FrameOpen46.Locks > Power Locks — Electrical DiagramsBody and FrameOpen47.Roof and Associated Components > Sunroof / Moonroof — Diagnostic AidsBody and FrameOpen48.Roof and Associated Components > Sunroof / Moonroof — Diagram Information and InstructionsBody and FrameOpen
Exact Vehicle Hub
Browse →OEM Manual Evidence
Browse →1986 Pontiac Grand Prix 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 Grand Prix 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
Browse →More Grand Prix Wiring Pages
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