Wiring Diagram Cluster

2003 Mitsubishi Lancer 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

48

Variant Used

Lancer Evolution L4-2.0L DOHC Turbo

Total Vehicle Diagrams

386

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2003 Mitsubishi Lancer Application and ID

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.

2003 Mitsubishi Lancer Application and ID →
2003 Mitsubishi Lancer Application and ID2003 Mitsubishi Lancer Application and ID2003 Mitsubishi Lancer Application and ID

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 > Doors > Front Door — DiagramBody and FrameOpen2.Doors, Hood and Trunk > Doors > Rear Door — DiagramBody and FrameOpen3.Horn — Diagram Information and Instructions > How to Read Circuit DiagramsLighting and HornsOpen4.Horn — Diagram Information and Instructions > How to Read Configuration DiagramsLighting and HornsOpen5.Horn — Diagram Information and Instructions > How to Read Splice LocationsLighting and HornsOpen6.Horn — Electrical DiagramsLighting and HornsOpen7.Locks > Keyless Entry — Diagram Information and Instructions > How to Read Circuit DiagramsBody and FrameOpen8.Locks > Keyless Entry — Diagram Information and Instructions > How to Read Configuration DiagramsBody and FrameOpen9.Locks > Keyless Entry — Diagram Information and Instructions > How to Read Splice LocationsBody and FrameOpen10.Locks > Keyless Entry — Electrical DiagramsBody and FrameOpen11.Antitheft and Alarm Systems > Keyless Entry — Diagram Information and Instructions > How to Read Circuit DiagramsAccessories and Optional EquipmentOpen12.Antitheft and Alarm Systems > Keyless Entry — Diagram Information and Instructions > How to Read Configuration DiagramsAccessories and Optional EquipmentOpen13.Antitheft and Alarm Systems > Keyless Entry — Diagram Information and Instructions > How to Read Splice LocationsAccessories and Optional EquipmentOpen14.Antitheft and Alarm Systems > Keyless Entry — Electrical DiagramsAccessories and Optional EquipmentOpen15.Electrical Diagrams > HornGeneralOpen16.Electrical Diagrams > Keyless EntryGeneralOpen17.Electrical Diagrams > Trunk LampGeneralOpen18.Exploded Views > Body and Frame > CowlGeneralOpen19.Exploded Views > Body and Frame > FirewallGeneralOpen20.Exploded Views > Body and Frame > Front DoorGeneralOpen21.Exploded Views > Body and Frame > Rear DoorGeneralOpen22.Exploded Views > Body and Frame > System DiagramGeneralOpen23.Mechanical Diagrams > Body and FrameGeneralOpen24.Exploded ViewsBody and FrameOpen25.Fog/Driving Lamp — Diagram Information and Instructions > How to Read Circuit DiagramsLighting and HornsOpen26.Fog/Driving Lamp — Diagram Information and Instructions > How to Read Configuration DiagramsLighting and HornsOpen27.Fog/Driving Lamp — Diagram Information and Instructions > How to Read Splice LocationsLighting and HornsOpen28.Fog/Driving Lamp — Electrical DiagramsLighting and HornsOpen29.Frame > Cross-Member — DiagramBody and FrameOpen30.Hazard Warning Lamps — Diagram Information and Instructions > How to Read Circuit DiagramsLighting and HornsOpen31.Hazard Warning Lamps — Diagram Information and Instructions > How to Read Configuration DiagramsLighting and HornsOpen32.Hazard Warning Lamps — Diagram Information and Instructions > How to Read Splice LocationsLighting and HornsOpen33.Hazard Warning Lamps — Electrical DiagramsLighting and HornsOpen34.Headlamp — Diagram Information and Instructions > How to Read Circuit DiagramsLighting and HornsOpen35.Headlamp — Diagram Information and Instructions > How to Read Configuration DiagramsLighting and HornsOpen36.Headlamp — Diagram Information and Instructions > How to Read Splice LocationsLighting and HornsOpen37.Headlamp — Electrical DiagramsLighting and HornsOpen38.Locks > Power Locks — Diagram Information and Instructions > How to Read Circuit DiagramsBody and FrameOpen39.Locks > Power Locks — Diagram Information and Instructions > How to Read Configuration DiagramsBody and FrameOpen40.Locks > Power Locks — Diagram Information and Instructions > How to Read Splice LocationsBody and FrameOpen41.Locks > Power Locks — Electrical DiagramsBody and FrameOpen42.Mechanical DiagramsBody and FrameOpen43.Mirrors — Diagram Information and Instructions > How to Read Circuit DiagramsBody and FrameOpen44.Mirrors — Diagram Information and Instructions > How to Read Configuration DiagramsBody and FrameOpen45.Mirrors — Diagram Information and Instructions > How to Read Splice LocationsBody and FrameOpen46.Mirrors — Electrical DiagramsBody and FrameOpen47.Roof and Associated Components > Sunroof / Moonroof — Diagram Information and Instructions > How to Read Circuit DiagramsBody and FrameOpen48.Roof and Associated Components > Sunroof / Moonroof — Diagram Information and Instructions > How to Read Configuration DiagramsBody and FrameOpen

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OEM Manual Evidence

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2003 Mitsubishi Lancer Application and IDOEM Manual

Repair and Diagnosis: Application and ID — 2003 Mitsubishi Lancer L4-2.0L SOHC Service Manual | Operation CHARM Operation CHARM : Car repai...

2003 Mitsubishi Lancer Application and IDOEM Manual

Repair and Diagnosis: Application and ID — 2003 Mitsubishi Lancer Evolution L4-2.0L DOHC Turbo Service Manual | Operation CHARM Operation C...

2003 Mitsubishi Lancer Application and IDOEM Manual

Repair and Diagnosis: Application and ID — 2003 Mitsubishi Galant L4-2.4L SOHC Service Manual | Operation CHARM Operation CHARM : Car repai...

2003 Mitsubishi Lancer Application and IDOEM Manual

Repair and Diagnosis: Application and ID — 2003 Mitsubishi Galant V6-3.0L SOHC Service Manual | Operation CHARM Operation CHARM : Car repai...

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 Lancer Wiring Pages

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Same System, Other Vehicles

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