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U0100 Diagnostic Trouble Code Discussion for October 2012

Lost Communication With ECM

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Trouble Ticket Help Requests for DTC U0100
Help Request Posted
2006 Toyota Prius 1.5L MIL Lamp on VIN: JTDKB20U56
U0100: Lost Communication w/ ECM/PCM A. Thanks in advance. I have this 2006 Prius that the MIL and a red triangle light keep setting after about 8-10 miles of driving. The does not seem to be any driveability issues with the car. Just the 3 DTC's. The problem I'm having is that there does not seem t...
October 03, 2012