Wiring Diagram Cluster

1994 GMC Truck Yukon 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

Yukon V8-350 5.7L

Total Vehicle Diagrams

2184

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.Components > Convenience Center > Power Window and Door Lock Crossbody WiringGeneralOpen 2.Connector Views > Lighting and Horns > Dome Lamp > C237 Rear Tailgate Jamb SwitchGeneralOpen 3.Connector Views > Lighting and Horns > System Diagram > Interior LightsGeneralOpen 4.Connector Views > Interior LightsLighting and HornsOpen 5.Doors, Hood and Trunk > Trunk / Liftgate — Connector Views > C296Body and FrameOpen 6.Doors, Hood and Trunk > Trunk / Liftgate — Connector Views > C404Body and FrameOpen 7.Doors, Hood and Trunk > Trunk / Liftgate — Connector Views > C459Body and FrameOpen 8.Doors, Hood and Trunk > Trunk / Liftgate — Connector Views > C905Body and FrameOpen 9.Doors, Hood and Trunk > Trunk / Liftgate — Connector Views > C906Body and FrameOpen 10.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Connector, Splicing and Terminal Repair > Pull-to-Seat ConnectorsBody and FrameOpen 11.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Connector, Splicing and Terminal Repair > Push-to-Seat ConnectorsBody and FrameOpen 12.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Connector, Splicing and Terminal Repair > Repairing ConnectorsBody and FrameOpen 13.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Connector, Splicing and Terminal Repair > Terminal RepairBody and FrameOpen 14.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Troubleshooting Procedures > Basic Troubleshooting GuideBody and FrameOpen 15.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Troubleshooting Procedures > Checking Terminal ContactsBody and FrameOpen 16.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Troubleshooting Procedures > Intermittents and Poor ConnectionsBody and FrameOpen 17.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Troubleshooting Procedures > Troubleshooting TestsBody and FrameOpen 18.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > General Troubleshooting Procedures > Troubleshooting ToolsBody and FrameOpen 19.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Handling and Measuring ProceduresBody and FrameOpen 20.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Wire Repair Procedures > Circuit Protection DevicesBody and FrameOpen 21.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Wire Repair Procedures > Splicing Copper Wire Using Crimp and Seal Splice SleevesBody and FrameOpen 22.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Wire Repair Procedures > Splicing Copper Wire Using Splice ClipsBody and FrameOpen 23.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Wire Repair Procedures > Splicing Twisted/Shielded CableBody and FrameOpen 24.Doors, Hood and Trunk > Trunk / Liftgate — Diagnostic Aids > Wire Repair Procedures > Typical Electrical RepairBody and FrameOpen 25.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and Instructions > Cell ReferencesBody and FrameOpen 26.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and Instructions > Schematic SymbolsBody and FrameOpen 27.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and Instructions > Symbol Identification > Part 1 of 3Body and FrameOpen 28.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and Instructions > Symbol Identification > Part 2 of 3Body and FrameOpen 29.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and Instructions > Symbol Identification > Part 3 of 3Body and FrameOpen 30.Doors, Hood and Trunk > Trunk / Liftgate — Diagram Information and Instructions > Wire Color Code IdentificationBody and FrameOpen 31.Doors, Hood and Trunk > Trunk / Liftgate — Electrical DiagramsBody and FrameOpen 32.Horn — Connector ViewsLighting and HornsOpen 33.Horn — Diagnostic Aids > Connector, Splicing and Terminal Repair > Pull-to-Seat ConnectorsLighting and HornsOpen 34.Horn — Diagnostic Aids > Connector, Splicing and Terminal Repair > Push-to-Seat ConnectorsLighting and HornsOpen 35.Horn — Diagnostic Aids > Connector, Splicing and Terminal Repair > Repairing ConnectorsLighting and HornsOpen 36.Horn — Diagnostic Aids > Connector, Splicing and Terminal Repair > Terminal RepairLighting and HornsOpen 37.Horn — Diagnostic Aids > General Troubleshooting Procedures > Basic Troubleshooting GuideLighting and HornsOpen 38.Horn — Diagnostic Aids > General Troubleshooting Procedures > Checking Terminal ContactsLighting and HornsOpen 39.Horn — Diagnostic Aids > General Troubleshooting Procedures > Intermittents and Poor ConnectionsLighting and HornsOpen 40.Horn — Diagnostic Aids > General Troubleshooting Procedures > Troubleshooting TestsLighting and HornsOpen 41.Horn — Diagnostic Aids > General Troubleshooting Procedures > Troubleshooting ToolsLighting and HornsOpen 42.Horn — Diagnostic Aids > Handling and Measuring ProceduresLighting and HornsOpen 43.Horn — Diagnostic Aids > Wire Repair Procedures > Circuit Protection DevicesLighting and HornsOpen 44.Horn — Diagnostic Aids > Wire Repair Procedures > Splicing Copper Wire Using Crimp and Seal Splice SleevesLighting and HornsOpen 45.Horn — Diagnostic Aids > Wire Repair Procedures > Splicing Copper Wire Using Splice ClipsLighting and HornsOpen 46.Horn — Diagnostic Aids > Wire Repair Procedures > Splicing Twisted/Shielded CableLighting and HornsOpen 47.Horn — Diagnostic Aids > Wire Repair Procedures > Typical Electrical RepairLighting and HornsOpen 48.Horn — Diagram Information and Instructions > Cell ReferencesLighting and HornsOpen

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Likely Trouble Codes for This System

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 Yukon Wiring Pages

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Same System, Other Vehicles

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