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U0100 Diagnostic Trouble Code Discussion for July 2010

Lost Communication With ECM

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Trouble Ticket Help Requests for DTC U0100
Help Request Posted
2007 Dodge Charger SE 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2B3KAL13G0
U0100: Lost Communication With ECM/PCM. when is cold car start and run ok. as the car run more and more is getting rough at idle idle , if the car set for 5 to 8 minute off , it will be hard start, i got long crank befor run, the only things i can see at the scaner is LTFT both bank positive 17.0% s...
July 19, 2010
2006 Dodge Charger SE 3.5L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: 2B3KA43G36
U0100: Lost Communication With ECM/PCM. ... intermittent rough running. I've had it for 5 days and it only happened once when from a cold start, when i tried to accelerate hard, it did not have any response. Then it ran good again. After that, it's been fine. The only code is uo100. It's been to two...
July 23, 2010