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U0100 Diagnostic Trouble Code Discussion for July 2012

Lost Communication With ECM


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Trouble Ticket Help Requests for DTC U0100
Help Request Posted
2006 Volkswagen Jetta TDI 1.9L No Start VIN: 3VWST71K26
U0100: Loss of communication with pcm/ecm. ... needs some experience I lack. It died while driving, then would crank and not start for 5 min, sat for a bit then started, drove a mile then died with crank, no start. Customer towed in and I retrieved u0100 lost communication code. The PRNDS display flash...
July 01, 2012
2006 Volkswagen Jetta TDI 1.9L No Start VIN: 3VWST71K26
U0100: Loss of communication with pcm/ecm. ... needs some experience I lack. It died while driving, then would crank and not start for 5 min, sat for a bit then started, drove a mile then died with crank, no start. Customer towed in and I retrieved u0100 lost communication code. The PRNDS display flash...
July 02, 2012