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Test Description

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

  1. 2. This step tests for blower motor operation in any speed setting.
  2. 3. This step tests for voltage at the blower motor.
  3. 4. This step tests for a possible open in the blower motor resistor assembly ground circuit.
  4. 5. This step tests for output voltage from the blower motor switch.
    Fig 1: Blower Motor Inoperative (1 Of 2)
    G01645777Courtesy of GENERAL MOTORS CORP.
    Fig 2: Blower Motor Inoperative (2 Of 2)
    G01645778Courtesy of GENERAL MOTORS CORP.
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