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PCM Making Poor Choices in the Rain for the Mazda3 and Mazda6

The power control module (PCM) in some of Mazda’s newer cars is making some poor assumptions, prompting a recall. Apparently driving in heavy rain or puddles can cause the alternator belt to slip, sending the PCM into a tizzy and disabling the charging system.

The recalled vehicles include the 2014 Mazda3 and the 2014-15 Mazda6 with both a 2.5L engine and the regenerative engine braking system. The PCM will need to be reprogrammed and the recall should begin in late April, 2014.

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