Why doesn't the heater/ac and power windows work?

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1999-2005 Pontiac Grand Am

The Pontiac Grand Am is a mid-size size (and later compact) car produced by Pontiac. The 1999-2005 generation is the final generation of the Pontiac Grand Am.

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ddeheine @ddeheine

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Gepost: 31 okt. 2015

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Why doesn't the heater/ac and power windows work?

Whenever I start the car the power windows do not work and the heater/ac won't turn on as well. Sometimes they both run but most of the time they do not run. I have looked at the fuses and have not found any of them are bad. I am not sure where to look or what to do.

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Do the power windows work when you turn the key to on but do not start the engine? Unlikely that it is a fuse since the error is intermittent. Besides the fuses, what else have you checked? Both of those accessories do have relays, so that is where I would start.

31 okt. 2015 door oldturkey03

The windows do not work in accessory position. The only other thing that I tried is simulating starting the car while I was driving this started heater and windows, but it only worked once.

31 okt. 2015 door ddeheine

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Do the power windows work when you turn the key to on but do not start the engine? Unlikely that it is a fuse since the error is intermittent. Besides the fuses, what else have you checked? Both of those accessories do have relays, so that is where I would start. — oldturkey03
The windows do not work in accessory position. The only other thing that I tried is simulating starting the car while I was driving this started heater and windows, but it only worked once. — ddeheine

1999-2005 Pontiac Grand Am

Why doesn't the heater/ac and power windows work?

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