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Test Description

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The number(s) below refer to the step number(s) on the diagnostic table.

  1. 3. This step tests for auxiliary blower motor that does not operate from the front auxiliary HVAC control assembly regardless of the desired blower motor speed.
  2. 4. This step tests for a auxiliary blower motor that operates, yet does not accurately respond to the desired blower motor speed from the front auxiliary HVAC control assembly.
  3. 5. This step tests for an inoperative auxiliary mode actuator in one mode position(s) or in the wrong mode position(s) from the front auxiliary HVAC control module.
  4. 6. This step tests for an inoperative auxiliary mode actuator in one mode position(s) or in the wrong mode position(s) from the console HVAC control module.
    Fig 1: Diagnosis Procedure Air Delivery Improper - Auxiliary (Step 1 To 7)
    G01454808Courtesy of GENERAL MOTORS CORP.
    Fig 2: Diagnosis Procedure Air Delivery Improper - Auxiliary (Step 8 To 13)
    G01454809Courtesy of GENERAL MOTORS CORP.

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