Wiring Diagram Cluster

1990 Mitsubishi Sigma 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

37

Variant Used

Sigma V6-2972cc 3.0L SOHC

Total Vehicle Diagrams

234

From Diagram To Fix

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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.

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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.Horn — Diagram Information and Instructions > Key to Wiring Diagrams and Symbol IdentificationLighting and HornsOpen2.Horn — Diagram Information and Instructions > Wire Color CodesLighting and HornsOpen3.Horn — Electrical DiagramsLighting and HornsOpen4.Locks > Door Locks — Diagram Information and Instructions > Key to Wiring Diagrams and Symbol IdentificationBody and FrameOpen5.Locks > Door Locks — Diagram Information and Instructions > Wire Color CodesBody and FrameOpen6.Locks > Door Locks — Electrical Diagrams > Part 1 of 2Body and FrameOpen7.Locks > Door Locks — Electrical Diagrams > Part 2 of 2Body and FrameOpen8.Electrical Diagrams > Door Locks > Part 1 of 2GeneralOpen9.Electrical Diagrams > Door Locks > Part 2 of 2GeneralOpen10.Electrical Diagrams > Door/Trunk Ajar Indicator/Lamp > Part 1 of 2GeneralOpen11.Electrical Diagrams > Door/Trunk Ajar Indicator/Lamp > Part 2 of 2GeneralOpen12.Electrical Diagrams > HornGeneralOpen13.Electrical Diagrams > Trunk Lamp > Part 1 of 2GeneralOpen14.Electrical Diagrams > Trunk Lamp > Part 2 of 2GeneralOpen15.Harness > Body Wiring HarnessGeneralOpen16.Hazard Warning Lamps — Diagram Information and Instructions > Key to Wiring Diagrams and Symbol IdentificationLighting and HornsOpen17.Hazard Warning Lamps — Diagram Information and Instructions > Wire Color CodesLighting and HornsOpen18.Hazard Warning Lamps — Electrical Diagrams > Part 1 of 2Lighting and HornsOpen19.Hazard Warning Lamps — Electrical Diagrams > Part 2 of 2Lighting and HornsOpen20.Headlamp — Diagram Information and Instructions > Key to Wiring Diagrams and Symbol IdentificationLighting and HornsOpen21.Headlamp — Diagram Information and Instructions > Wire Color CodesLighting and HornsOpen22.Headlamp — Electrical Diagrams > Part 1 of 2Lighting and HornsOpen23.Headlamp — Electrical Diagrams > Part 2 of 2Lighting and HornsOpen24.Roof and Associated Components > Sunroof / Moonroof — Diagram Information and Instructions > Key to Wiring Diagrams and Symbol IdentificationBody and FrameOpen25.Roof and Associated Components > Sunroof / Moonroof — Diagram Information and Instructions > Wire Color CodesBody and FrameOpen26.Roof and Associated Components > Sunroof / Moonroof — Electrical Diagrams > Part 1 of 2Body and FrameOpen27.Roof and Associated Components > Sunroof / Moonroof — Electrical Diagrams > Part 2 of 2Body and FrameOpen28.Tail Lamp — Diagram Information and Instructions > Key to Wiring Diagrams and Symbol IdentificationLighting and HornsOpen29.Tail Lamp — Diagram Information and Instructions > Wire Color CodesLighting and HornsOpen30.Tail Lamp — Electrical Diagrams > Part 1 of 2Lighting and HornsOpen31.Tail Lamp — Electrical Diagrams > Part 2 of 2Lighting and HornsOpen32.Turn Signals — Diagram Information and Instructions > Key to Wiring Diagrams and Symbol IdentificationLighting and HornsOpen33.Turn Signals — Diagram Information and Instructions > Wire Color CodesLighting and HornsOpen34.Turn Signals — Electrical Diagrams > Hazard and Turn Signal > Part 1 of 2Lighting and HornsOpen35.Turn Signals — Electrical Diagrams > Hazard and Turn Signal > Part 2 of 2Lighting and HornsOpen36.Turn Signals — Electrical Diagrams > LH-RH Turn > Part 1 of 2Lighting and HornsOpen37.Turn Signals — Electrical Diagrams > LH-RH Turn > Part 2 of 2Lighting and HornsOpen

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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.

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Same System, Other Vehicles

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