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Re: 2003 Trailblazer 4.2 with a DTC P1271
Posted to Technical Discussion Forum on 2/4/2005 3 Replies

I posted this repair because I wanted to see if most techs wanted to plot the APP 1 and APP 2 signals on a lab scope, invert one, and compare.

That would have created some confusion as the TAC system is probably one of the most monitored systems on the vehic... Login to read more.

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3 Replies Received (View Replies)