Re: No Communication (ALDL to PCM)

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Posted to Snap-on Handheld Users Group on 7/16/2006 1 Reply

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You might look at the serial data circuit. I'm using a Heritage Vantage in this instance.

[1999 Chevrolet Tahoe, DATA+, DATA- Waveform]

The vehicle had a condition similar to yours. Mine turned ou... Login to read more.

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