Yukon XL 2500 4WD V8-6.0L VIN U (2005)
1. If a NEW control module is being installed, program the new module. Refer to Control Module References in Computer/Integrating Systems.
2. Install the shift control module to the bracket.
3. Connect the shift control module electrical connectors.
4. Start the engine and test the automatic transfer case system for proper shift operation.
