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Re: 2004 Trailblazer 4.2l Blown PCM Sensor Ground
Posted to Technical Tips Forum on 2/14/2016

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Well Geoff, it sounds like a real possibility, that I had not considered. And if the fuse is damaged it could take out the tail lights. Not sure how an 04 is wired? May just kill the one park lite, n... Login to read more.