Edmunds Answers



  • buster40 12/04/11 4:53 pm PST

    bad ac controller or fan relay is bad

    Source: years of service with gm and solving lots of problems

  • thecardoc3 12/04/11 5:56 pm PST

    The blower control module which takes the place of the blower resistor controls the round side of the blower circuit. When it fails it often causes the report of the blower running all of the time. Keep in mind, anything providing a ground to that blower circuit will keep the motor running too. If you unplug the controller and the fan is still running, then you'll be looking for an abraided wire that is connecting it to ground.


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