Wiring Diagram Cluster

1987 Chevrolet Caprice Wagon Body Electrical Wiring Diagram

Find body control module wiring, door lock circuits, interior lighting paths, and horn/alarm schematics.

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Matched Diagrams

38

Variant Used

Caprice Wagon V6-262 4.3L

Total Vehicle Diagrams

369

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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.

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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 →
U0140: Lost Communication with Body Control Module

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 > Motors > Tailgate Window MotorGeneralOpen12.Components > Relays > Door Lock RelayGeneralOpen13.Components > Solenoids > Trunk Release SolenoidGeneralOpen14.Components > Switches > Door Lock SwitchGeneralOpen15.Components > Switches > Horn SwitchGeneralOpen16.Components > Switches > Tailgate Ajar SwitchGeneralOpen17.Components > Switches > Tailgate Block Out SwitchGeneralOpen18.Components > Switches > Tailgate Key SwitchGeneralOpen19.Electrical Diagrams > HornGeneralOpen20.Electrical Diagrams > Instrument Panel, Gauges and Warning Indicators > Door/Trunk Ajar Indicator/LampGeneralOpen21.Electrical Diagrams > Trunk / Liftgate > Trunk / Liftgate SolenoidGeneralOpen22.Electrical Diagrams > Trunk LampGeneralOpen23.Courtesy Lamp — Diagram Information and InstructionsLighting and HornsOpen24.Courtesy Lamp — Electrical DiagramsLighting and HornsOpen25.Hazard Warning Lamps — Diagram Information and InstructionsLighting and HornsOpen26.Hazard Warning Lamps — Electrical Diagrams > Front Marker, Hazard, Park, Stop & Turn LampLighting and HornsOpen27.Hazard Warning Lamps — Electrical Diagrams > Hazard, High Mounted Stop Lamp, Stop & TurnLighting and HornsOpen28.Headlamp — Diagram Information and InstructionsLighting and HornsOpen29.Headlamp — Electrical DiagramsLighting and HornsOpen30.Locks > Power Locks — Diagram Information and InstructionsBody and FrameOpen31.Locks > Power Locks — Electrical Diagrams > Four DoorBody and FrameOpen32.Locks > Power Locks — Electrical Diagrams > Two DoorBody and FrameOpen33.Seats — Diagram Information and InstructionsBody and FrameOpen34.Seats — Electrical Diagrams > Left SideBody and FrameOpen35.Seats — Electrical Diagrams > Right SideBody and FrameOpen36.Turn Signals — Diagram Information and InstructionsLighting and HornsOpen37.Turn Signals — Electrical Diagrams > Front Marker, Hazard, Park, Stop & Turn LampsLighting and HornsOpen38.Turn Signals — Electrical Diagrams > Hazard, High Level Stop, Stop & TurnLighting and HornsOpen

Parts & Tools for This Job

Common parts shoppers buy for 1987 Chevrolet Caprice Wagon Body Electrical.

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Assorted Fuses

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Relays

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Digital Multimeter

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Wire Repair Kit

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Likely Trouble Codes for This System

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B1318: Battery Voltage LowCode

Body/Electrical code commonly seen during body electrical diagnosis.

U0140: Lost Communication with Body Control ModuleCode

Network/Communication code commonly seen during body electrical diagnosis.

More Caprice Wagon Wiring Pages

Starter Wiring DiagramAlternator Wiring DiagramHeadlight Wiring DiagramA/C & Heater Wiring DiagramPower Window Wiring DiagramInstrument Cluster Wiring DiagramWiper & Washer Wiring DiagramTransmission Wiring DiagramCruise Control Wiring DiagramEngine Management Wiring Diagram

Same System, Other Vehicles

1990 Chevrolet Beretta Body Electrical Wiring Diagram1990 Chevrolet Caprice Body Electrical Wiring Diagram1990 Chevrolet Cavalier Body Electrical Wiring Diagram1990 Chevrolet Celebrity Body Electrical Wiring Diagram1990 Chevrolet Corsica Body Electrical Wiring Diagram1990 Chevrolet Corvette Body Electrical Wiring Diagram1990 Chevrolet Lumina Body Electrical Wiring Diagram1992 Chevrolet Caprice RWD Body Electrical Wiring Diagram
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