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U0100 Diagnostic Trouble Code Discussion for September 2012

Lost Communication With ECM

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Trouble Ticket Help Requests for DTC U0100
Help Request Posted
2007 BMW 328i 3.0L MIL Lamp on VIN: WBAVA37507
U0100: Can Fault. Codes can be cleared but reset after one Key cycle. We are using an Autologic scan tool but do not have a factory tool to run a Test plan. I can comunicate with evey module on the car with no problems with the Autologic. Are there any test I can run without a ...
September 12, 2012
2005 Mazda 3 S 2.3L No Start VIN: JM1BK323X5
U0100: Communication Error To PCM. ... engine with a fresh reman. When i I started the engine it stalled due to a vac line that I missed. After correcting the line when I tried to start it I got nothing . so using an otc scan tool I pulled codes from every system on this car the codes are as fo...
September 19, 2012