Test Description

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

1. 2. This step checks for continuous operation of the auxiliary heater or A/C blower motor.
2. 3. This step determines if the problems in the auxiliary heater or A/C blower motor switch.
3. 4. This step tests for a short to voltage in the auxiliary heater or A/C blower motor supply circuit.
   Fig 1: Auxiliary Blower Motor Always On (1 Of 2)

   Courtesy of GENERAL MOTORS CORP.
   Fig 2: Auxiliary Blower Motor Always On (2 Of 2)

   Courtesy of GENERAL MOTORS CORP.