K 1500 Yukon XL 4WD V8-5.3L VIN Z Flex Fuel (2002)
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Fuel Injector: Diagram Information and Instructions
Utility/Van Zoning
All grounds, in-line connectors, pass-through grommets, and splices have identifying numbers that correspond to where they are located in the vehicle.
The table explains the numbering system.
Electrical Symbols