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Test Description

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 2)  - This step tests the transfer case electrical control of the indicator control circuits.
  2. 3)  - This step helps determine module failures.
  3. 4)  - This step tests the affected indicator control circuit for an open or high resistance.
  4. 5)  - This step tests the ignition 1 voltage circuit for an open or short to ground.
Fig 1: Transfer Case Shift Control Switch Indicator Inoperative - One or More Diagnosis
G01668906Courtesy of GENERAL MOTORS CORP.
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