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      01-30-2013, 06:41 PM   #6
phillip@bmpdesign
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Drives: 2008 BMW 335i
Join Date: Sep 2012
Location: Tyler, TX

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TPMS operates on radio waves, actually closer to bluetooth, the valve stem is the transmitter and the receiver is typically mounted in the quarter panel. To conserve power, the transmitter doesn't broadcast every second, it usually sends out pulses ever minute or two and sometimes only when driving. You probably got the malfunction because the receiver couldn't detect the transmitter, then when it detected it the malfunction went away.

10/10 a TPMS malfunction is where the receiver can't find the signal of the transmitter.
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Phillip Wilmeth
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