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Relays and Modules - Windows and Glass > < Drivetrain - Service 4WD Message/DTC C0378 Set|Page 1382

Avalanche 1500 4WD V8-5.3L (2007)

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1. If a NEW control module is being installed, program the new module. Refer to Control Module References.
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.

Relays and Modules - Windows and Glass > < Drivetrain - Service 4WD Message/DTC C0378 Set|Page 1382