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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 checks for continuous operation of the blower motor.
  2. 3)  - This step tests for a short to voltage in the blower motor control circuits.
Fig 1: Blower Motor Always On Diagnosis
G01666673Courtesy of GENERAL MOTORS CORP.
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