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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)  - Determines the position of the Front Axle Switch.
  2. 3)  - Helps determine if the front axle will not engage.
  3. 4)  - Helps determine if the front axle will not disengage.
Fig 1: Transfer Case Shift Control Switch Indicators Flash Continuously Diagnosis
G01668694Courtesy of GENERAL MOTORS CORP.
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