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U1000 Diagnostic Trouble Code Discussion for March 2011

Class 2 Communication Malfunction

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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2005 GMC Envoy XL SLT 5.3L No Start VIN: 1GKET16M05
U1000: No Communication. Hi all. I replaced the engine on this Envoy three months ago with a Jasper crate engine. It was the only crate available. Everything has been fine since then until today. The vehicle came in by hook complaining of a no start no crank. I found no power to the s...
March 28, 2011