Wiring Diagram Cluster
1986 Pontiac Grand AM 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 AM L4-151 2.5L
Total Vehicle Diagrams
361
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 AM 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 AM 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 > Door Courtesy, Cigar Lighter & TrunkGeneralOpen2.Electrical Diagrams > Lighting and Horns > Trunk Lamp > With Door Courtesy LampsGeneralOpen3.Electrical Diagrams > Lighting and Horns > Trunk Lamp > Without Door Courtesy LampsGeneralOpen4.Courtesy Lamp — Electrical Diagrams > Door Courtesy, Cigar Lighter & TrunkLighting and HornsOpen5.Horn — Diagram Information and InstructionsLighting and HornsOpen6.Horn — Electrical DiagramsLighting and HornsOpen7.Trunk Lamp — Diagram Information and InstructionsLighting and HornsOpen8.Trunk Lamp — Electrical Diagrams > With Door Courtesy LampsLighting and HornsOpen9.Trunk Lamp — Electrical Diagrams > Without Door Courtesy LampsLighting and HornsOpen10.Components > Miscellaneous Components > Horn Brush/Slip RingGeneralOpen11.Components > Motors > Door Lock MotorGeneralOpen12.Components > Relays > Door Lock Relay AssemblyGeneralOpen13.Components > Relays > Horn RelayGeneralOpen14.Components > Solenoids > Trunk Release SolenoidGeneralOpen15.Components > Switches > Horn SwitchGeneralOpen16.Components > Switches > Trunk Ajar SwitchGeneralOpen17.Electrical Diagrams > Lighting and Horns > Backup LampGeneralOpen18.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Door LampGeneralOpen19.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Glove Box LampGeneralOpen20.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > System Diagram > Footwell Courtesy, Glove BoxGeneralOpen21.Electrical Diagrams > Lighting and Horns > Dome LampGeneralOpen22.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Less Driver Information Center (Part 1 of 2)GeneralOpen23.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Less Driver Information Center (Part 2 of 2)GeneralOpen24.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > W/Driver Information Center (Part 1 of 2)GeneralOpen25.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > W/Driver Information Center (Part 2 of 2)GeneralOpen26.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > Except SE W/Fog LightsGeneralOpen27.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > Except SE W/Lamp MonitorGeneralOpen28.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > SE W/Fog LightsGeneralOpen29.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > SE W/Lamp MonitorGeneralOpen30.Electrical Diagrams > Lighting and Horns > Headlamp > System Diagram > Without Fog Lamps & Lamp MonitorGeneralOpen31.Electrical Diagrams > Lighting and Horns > HornGeneralOpen32.Electrical Diagrams > Lighting and Horns > License Plate LampGeneralOpen33.Electrical Diagrams > Lighting and Horns > Map LightGeneralOpen34.Electrical Diagrams > Lighting and Horns > Marker LampGeneralOpen35.Electrical Diagrams > Lighting and Horns > System Diagram > (Hazard, Stop, Turn, Part 1 of 3) W/Lamp MonitorGeneralOpen36.Electrical Diagrams > Lighting and Horns > System Diagram > (Hazard, Stop, Turn, Part 2 of 3) W/Lamp MonitorGeneralOpen37.Electrical Diagrams > Lighting and Horns > System Diagram > (Hazard, Stop, Turn, Part 3 of 3) W/Lamp MonitorGeneralOpen38.Electrical Diagrams > Lighting and Horns > System Diagram > (License, Marker, PK, Tail, Pt 1 of 3) W/Lamp MonitorGeneralOpen39.Electrical Diagrams > Lighting and Horns > System Diagram > (License, Marker, PK, Tail, Pt 2 of 3) W/Lamp MonitorGeneralOpen40.Electrical Diagrams > Lighting and Horns > System Diagram > (License, Marker, PK, Tail, Pt 3 of 3) W/Lamp MonitorGeneralOpen41.Electrical Diagrams > Lighting and Horns > System Diagram > Hazard, Marker, Park, Stop, Turn, Part 1 of 2 W/O Lamp MonitorGeneralOpen42.Electrical Diagrams > Lighting and Horns > System Diagram > Hazard, Marker, Park, Stop, Turn, Part 2 of 2 W/O Lamp MonitorGeneralOpen43.Electrical Diagrams > Lighting and Horns > Tail LampGeneralOpen44.Electrical Diagrams > Lighting and Horns > Vanity LampGeneralOpen45.Electrical Diagrams > Trunk / Liftgate SolenoidGeneralOpen46.Backup Lamp — Diagram Information and InstructionsLighting and HornsOpen47.Backup Lamp — Electrical DiagramsLighting and HornsOpen48.Courtesy Lamp — Diagram Information and InstructionsLighting and HornsOpen
Exact Vehicle Hub
Browse →OEM Manual Evidence
Browse →1986 Pontiac Grand AM A L L Diagnostic Trouble Codes ( DTC )OEM Manual
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1986 Pontiac Grand AM A L L Diagnostic Trouble Codes ( DTC )OEM Manual
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Likely Trouble Codes for This System
Browse →More Grand AM Wiring Pages
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