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Interior Electrical/Electronics This is the place for questions/discussions of head units, speakers, navigation systems, alarm systems, heated seats, rear window defoggers, door locks, air bags, etc.

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  #106  
Old 12-05-2017, 06:16 PM
04allstock 04allstock is offline
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Okay. I replaced the blend door motor and have regained control of the temperature. I hate to chalk it up to coincidence that the blend door motor just happened to go bad the second I replaced the o-rings in the EATC, but whatever. Fan speed is still touchy. I have control from mid-high fan speed, but no low setting. I guess I need to set my sights on the blower motor now? How in the hell do all these things go bad at once? was it the solar eclipse??

Do I need to be looking at the blower motor? Or the BCM? Fan blows hard but there is touchy control of the fan speed, with almost no low setting.

Last edited by 04allstock; 12-05-2017 at 06:25 PM.
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  #107  
Old 12-05-2017, 06:50 PM
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RF Overlord RF Overlord is offline
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Blower motor is way easier to replace than the BMSC, but unless you can beg/borrow/steal a spare of each, it's difficult to know which is bad. Since the BMSC outputs a PWM signal, it's not as simple as putting a voltmeter on it...it's also possible the fan speed control in the EATC head unit is bad.
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  #108  
Old 09-13-2018, 05:16 PM
12odee 12odee is offline
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It has to be said once again. Thank you very much for this thread.

My face is now enjoying getting blasted by the hot/cold air of my choosing.
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