Wiring Diagram Cluster

1991 Chevrolet Caprice Body Electrical Wiring Diagram

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

Matched Diagrams

48

Variant Used

Caprice Classic V8-305 5.0L VIN E TBI

Total Vehicle Diagrams

636

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.

Keep context

Vehicle Repair Hub

Step out of raw diagrams and into the full 1991 Chevrolet Caprice hub with repairs, specs, codes, and other systems already tied to this car.

View vehicle repair hub β†’

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.

1991 Chevrolet Caprice A L L Diagnostic Trouble Codes ( DTC ) β†’

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 β†’

Top Body Electrical Diagram Paths

1.Electrical Diagrams > Windows > Rear Glass Release & Tailgate Lock > With Power Door Locks (Less Keyless Entry)GeneralOpen2.Windows β€” Electrical Diagrams > Rear Glass Release & Tailgate Lock > With Power Door Locks (Less Keyless Entry)Windows and GlassOpen3.Doors, Hood and Trunk > Trunk / Liftgate β€” Electrical Diagrams > With Power Door LocksBody and FrameOpen4.Doors, Hood and Trunk > Trunk / Liftgate β€” Electrical Diagrams > Without Power Door LocksBody and FrameOpen5.Electrical Diagrams > Trunk / Liftgate > With Power Door LocksGeneralOpen6.Electrical Diagrams > Trunk / Liftgate > Without Power Door LocksGeneralOpen7.Electrical Diagrams > Windows > Rear Glass Release & Tailgate Lock > Less Power Door LocksGeneralOpen8.Windows β€” Electrical Diagrams > Rear Glass Release & Tailgate Lock > Less Power Door LocksWindows and GlassOpen9.Doors, Hood and Trunk > Trunk / Liftgate β€” Diagnostic Aids > Pull-to-Seat ConnectorsBody and FrameOpen10.Doors, Hood and Trunk > Trunk / Liftgate β€” Diagnostic Aids > Push-to-Seat ConnectorsBody and FrameOpen11.Doors, Hood and Trunk > Trunk / Liftgate β€” Diagram Information and Instructions > Cell ReferencesBody and FrameOpen12.Doors, Hood and Trunk > Trunk / Liftgate β€” Diagram Information and Instructions > Schematic SymbolsBody and FrameOpen13.Doors, Hood and Trunk > Trunk / Liftgate β€” Diagram Information and Instructions > Wire Color Code IdentificationBody and FrameOpen14.Doors, Hood and Trunk > Trunk / Liftgate β€” Electrical Diagrams > Trunk Lid ReleaseBody and FrameOpen15.Horn β€” Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen16.Horn β€” Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen17.Horn β€” Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen18.Horn β€” Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen19.Horn β€” Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen20.Horn β€” Electrical DiagramsLighting and HornsOpen21.Locks > Power Locks β€” Electrical Diagrams > With Keyless EntryBody and FrameOpen22.Locks > Power Locks β€” Electrical Diagrams > Without Keyless EntryBody and FrameOpen23.Components > Miscellaneous Components > Horn Brush/Slip RingGeneralOpen24.Components > Motors > LH Front Door Lock MotorGeneralOpen25.Components > Motors > LH Rear Door Lock MotorGeneralOpen26.Components > Motors > RH Rear Door Lock MotorGeneralOpen27.Components > Motors > Tailgate Lock MotorGeneralOpen28.Components > Relays > Horn RelayGeneralOpen29.Components > Relays > Power Door Lock RelayGeneralOpen30.Components > Relays > Tailgate Lock RelayGeneralOpen31.Components > Solenoids > Trunk Lid Release SolenoidGeneralOpen32.Components > Switches > Door Lock SwitchGeneralOpen33.Components > Switches > Horn SwitchGeneralOpen34.Components > Switches > Tailgate Ajar SwitchGeneralOpen35.Components > Switches > Tailgate Lock Sense SwitchGeneralOpen36.Components > Switches > Trunk Lid Release SwitchGeneralOpen37.Connector Views > Keyless Entry Programming Connector > SedanGeneralOpen38.Connector Views > Keyless Entry Programming Connector > WagonGeneralOpen39.Electrical Diagrams > Lighting and Horns > Backup LampGeneralOpen40.Electrical Diagrams > Lighting and Horns > Brake LampGeneralOpen41.Electrical Diagrams > Lighting and Horns > Center Mounted Brake LampGeneralOpen42.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Cigar, Headlamp Switch, I/P, Underhood & VanityGeneralOpen43.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Courtesy & Reading > Part 1 of 2GeneralOpen44.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Courtesy & Reading > Part 2 of 2GeneralOpen45.Electrical Diagrams > Lighting and Horns > Courtesy Lamp > Rear Courtesy & ReadingGeneralOpen46.Electrical Diagrams > Lighting and Horns > Dimmer SwitchGeneralOpen47.Electrical Diagrams > Lighting and Horns > Hazard Warning LampsGeneralOpen48.Electrical Diagrams > Lighting and Horns > Headlamp > Headlamp Switch > Daytime Running Lamps > Part 1 of 3GeneralOpen