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#1
11-11-2004, 10:50 AM
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Heater switch
On a 2001 Pontiac Grand Am, the heater switch does not operate in positions 1 and 2, but works fine in positions 3 and up. I took the switch apart and the contacts look good and appear to work as they should.
Is there a resistor block on the blower motor which controls the fan speed in those switch positions? If so where is the block located? Does anyone know where I can get a wiring diagram for this vehicle? Thanks for your help. 
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#2
11-11-2004, 12:23 PM
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Re: Heater switch
Yes there is a resistor on the fan. It is located under the dash next to the fan motor. Purchase it at a dealer for about $40. Will take about an hour to install. Common problem with GM vehicles. As for a diagram if I were you I would buy a Chiltons or Haynes manual they will be quite helpful if you have any other problems.
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