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Re: 2005 CHEV W4500-Location of TAC Module
Posted to HD/Fleet Forum on 7/21/2010 1 Reply

Andrew,

We found the TAC Module behind the glove box like you said (thanks). Now it won't act up. We checked connector pins at TAC module and PCM. Checked power and grounds. Checked harness where it crosses under the frame on the drivers side. Found wiring l... Login to read more.

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