P0543 GMC - how to fix problem

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Carguy1 · Answer 1 · 2018-01-26T19:22:59+0000

Hi there

Most of the time the element is th issue and needs to be replaced. It can also be caused by a bad relay as well. Here is some more info for you.

P0543 CHEVROLET - Intake Air Heater 'A' Circuit Open

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