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 →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 ) →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 > Windows > Rear Glass Release & Tailgate Lock > With Power Door Locks (Less Keyless Entry)GeneralOpen2.Windows — Electrical Diagrams > Rear Glass Release & Tailgate Lock > With Power Door Locks (Less Keyless Entry)Windows and GlassOpen3.Doors, Hood and Trunk > Trunk / Liftgate — Electrical Diagrams > With Power Door LocksBody and FrameOpen4.Doors, Hood and Trunk > Trunk / Liftgate — 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 — Electrical Diagrams > Rear Glass Release & Tailgate Lock > Less Power Door LocksWindows and GlassOpen9.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Pull-to-Seat ConnectorsBody and FrameOpen10.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Push-to-Seat ConnectorsBody and FrameOpen11.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and Instructions > Cell ReferencesBody and FrameOpen12.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and Instructions > Schematic SymbolsBody and FrameOpen13.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and Instructions > Wire Color Code IdentificationBody and FrameOpen14.Doors, Hood and Trunk > Trunk / Liftgate — Electrical Diagrams > Trunk Lid ReleaseBody and FrameOpen15.Horn — Diagnostic Aids > Pull-to-Seat ConnectorsLighting and HornsOpen16.Horn — Diagnostic Aids > Push-to-Seat ConnectorsLighting and HornsOpen17.Horn — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen18.Horn — Diagram Information and Instructions > Schematic SymbolsLighting and HornsOpen19.Horn — Diagram Information and Instructions > Wire Color Code IdentificationLighting and HornsOpen20.Horn — Electrical DiagramsLighting and HornsOpen21.Locks > Power Locks — Electrical Diagrams > With Keyless EntryBody and FrameOpen22.Locks > Power Locks — 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
Exact Vehicle Hub
Browse →OEM Manual Evidence
Browse →1991 Chevrolet Caprice A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1991 Chevrolet Caprice Wagon RWD V8-350 5.7L Service Manual | Operation CHARM Operation CHARM : Ca...
1991 Chevrolet Caprice A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1991 Chevrolet Caprice V8-305 5.0L VIN E TBI Service Manual | Operation CHARM Operation CHARM : Ca...
1991 Chevrolet Caprice A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1991 Chevrolet Caprice V8-350 5.7L VIN 7 TBI Service Manual | Operation CHARM Operation CHARM : Ca...
1991 Chevrolet Caprice A L L Diagnostic Trouble Codes ( DTC )OEM Manual
A L L Diagnostic Trouble Codes ( DTC ) — 1991 Chevrolet Caprice Classic V8-350 5.7L VIN 7 TBI Service Manual | Operation CHARM Operation CH...
Likely Trouble Codes for This System
Browse →More Caprice Wiring Pages
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