Sierra 2500 4WD V8-6.0L VIN U (2004)
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Steering Mounted Controls Transmitter: Diagram Information and Instructions
Truck Zoning
TRUCK ZONING
Truck Zoning
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that corresponds to where they are located in the vehicle.
The table explains the numbering system.