Wiring Diagram Cluster
1984 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
399
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 1984 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.
Open interactive browser →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 > Trunk Release SwitchGeneralOpen12.Electrical Diagrams > Lighting and Horns > Backup LampGeneralOpen13.Electrical Diagrams > Lighting and Horns > Brake LampGeneralOpen14.Electrical Diagrams > Lighting and Horns > Cornering LampGeneralOpen15.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Door LampGeneralOpen16.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > System Diagram > Courtesy/Dome Lamp > Less Door CourtesyGeneralOpen17.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > System Diagram > Courtesy/Dome Lamp > With Door CourtesyGeneralOpen18.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > System Diagram > License Plate, Opera, Rear Marker & Tail LampGeneralOpen19.Electrical Diagrams > Lighting and Horns > Dome Lamp > Courtesy/Dome, Less Door CourtesyGeneralOpen20.Electrical Diagrams > Lighting and Horns > Dome Lamp > Courtesy/Dome, With Door CourtesyGeneralOpen21.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > Part 1 of 2GeneralOpen22.Electrical Diagrams > Lighting and Horns > Hazard Warning Lamps > Part 2 of 2GeneralOpen23.Electrical Diagrams > Lighting and Horns > HeadlampGeneralOpen24.Electrical Diagrams > Lighting and Horns > HornGeneralOpen25.Electrical Diagrams > Lighting and Horns > License Plate LampGeneralOpen26.Electrical Diagrams > Lighting and Horns > Map LightGeneralOpen27.Electrical Diagrams > Lighting and Horns > Marker Lamp > Front Marker, Hazard, Park, Stop & Turn > Part 1 of 2GeneralOpen28.Electrical Diagrams > Lighting and Horns > Marker Lamp > Front Marker, Hazard, Park, Stop & Turn > Part 2 of 2GeneralOpen29.Electrical Diagrams > Lighting and Horns > Marker Lamp > License Plate, Opera, Rear Marker & Tail LampsGeneralOpen30.Electrical Diagrams > Lighting and Horns > Parking LampGeneralOpen31.Electrical Diagrams > Lighting and Horns > System DiagramGeneralOpen32.Electrical Diagrams > Lighting and Horns > Tail LampGeneralOpen33.Electrical Diagrams > Lighting and Horns > Turn Signals > Part 1 of 2GeneralOpen34.Electrical Diagrams > Lighting and Horns > Turn Signals > Part 2 of 2GeneralOpen35.Electrical Diagrams > Trunk / Liftgate SolenoidGeneralOpen36.Backup Lamp — Diagnostic AidsLighting and HornsOpen37.Backup Lamp — Diagram Information and InstructionsLighting and HornsOpen38.Backup Lamp — Electrical DiagramsLighting and HornsOpen39.Courtesy Lamp — Diagnostic AidsLighting and HornsOpen40.Courtesy Lamp — Diagram Information and InstructionsLighting and HornsOpen41.Courtesy Lamp — Electrical Diagrams > Courtesy/Dome Lamp > Less Door CourtesyLighting and HornsOpen42.Courtesy Lamp — Electrical Diagrams > Courtesy/Dome Lamp > With Door CourtesyLighting and HornsOpen43.Courtesy Lamp — Electrical Diagrams > License Plate, Opera, Rear Marker & Tail LampLighting and HornsOpen44.Diagnostic AidsLighting and HornsOpen45.Diagram Information and InstructionsLighting and HornsOpen46.Electrical DiagramsLighting and HornsOpen47.Hazard Warning Lamps — Diagnostic AidsLighting and HornsOpen48.Hazard Warning Lamps — Diagram Information and InstructionsLighting and HornsOpen
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