Wiring Diagram Cluster
1987 Chevrolet Caprice Body Electrical Wiring Diagram
Find body control module wiring, door lock circuits, interior lighting paths, and horn/alarm schematics.
Matched Diagrams
37
Variant Used
Caprice V6-262 4.3L
Total Vehicle Diagrams
368
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 1987 Chevrolet Caprice 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.Doors, Hood and Trunk > Trunk / Liftgate — Electrical Diagrams > Power Tailgate Lock Wiring CircuitBody and FrameOpen2.Doors, Hood and Trunk > Trunk / Liftgate — Electrical Diagrams > Power Tailgate Window Wiring CircuitBody and FrameOpen3.Electrical Diagrams > Trunk / Liftgate > System Diagram > Power Tailgate Lock Wiring CircuitGeneralOpen4.Electrical Diagrams > Trunk / Liftgate > System Diagram > Power Tailgate Window Wiring CircuitGeneralOpen5.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and InstructionsBody and FrameOpen6.Horn — Diagram Information and InstructionsLighting and HornsOpen7.Horn — Electrical DiagramsLighting and HornsOpen8.Components > Miscellaneous Components > Horn Brush/Slip RingGeneralOpen9.Components > Motors > Door Lock MotorGeneralOpen10.Components > Motors > Tailgate Lock MotorGeneralOpen11.Components > Relays > Door Lock RelayGeneralOpen12.Components > Solenoids > Trunk Release SolenoidGeneralOpen13.Components > Switches > Door Lock SwitchGeneralOpen14.Components > Switches > Horn SwitchGeneralOpen15.Components > Switches > Tailgate Ajar SwitchGeneralOpen16.Components > Switches > Tailgate Block Out SwitchGeneralOpen17.Components > Switches > Tailgate Key SwitchGeneralOpen18.Electrical Diagrams > HornGeneralOpen19.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > Door/Trunk Ajar Indicator/LampGeneralOpen20.Electrical Diagrams > Trunk / Liftgate > Trunk / Liftgate SolenoidGeneralOpen21.Electrical Diagrams > Trunk LampGeneralOpen22.Courtesy Lamp — Diagram Information and InstructionsLighting and HornsOpen23.Courtesy Lamp — Electrical DiagramsLighting and HornsOpen24.Hazard Warning Lamps — Diagram Information and InstructionsLighting and HornsOpen25.Hazard Warning Lamps — Electrical Diagrams > Front Marker, Hazard, Park, Stop & Turn LampLighting and HornsOpen26.Hazard Warning Lamps — Electrical Diagrams > Hazard, High Mounted Stop Lamp, Stop & TurnLighting and HornsOpen27.Headlamp — Diagram Information and InstructionsLighting and HornsOpen28.Headlamp — Electrical DiagramsLighting and HornsOpen29.Locks > Power Locks — Diagram Information and InstructionsBody and FrameOpen30.Locks > Power Locks — Electrical Diagrams > Four DoorBody and FrameOpen31.Locks > Power Locks — Electrical Diagrams > Two DoorBody and FrameOpen32.Seats — Diagram Information and InstructionsBody and FrameOpen33.Seats — Electrical Diagrams > Left SideBody and FrameOpen34.Seats — Electrical Diagrams > Right SideBody and FrameOpen35.Turn Signals — Diagram Information and InstructionsLighting and HornsOpen36.Turn Signals — Electrical Diagrams > Front Marker, Hazard, Park, Stop & Turn LampsLighting and HornsOpen37.Turn Signals — Electrical Diagrams > Hazard, High Level Stop, Stop & TurnLighting and HornsOpen
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