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U0121 Diagnostic Trouble Code Discussion for July 2010

Lost Communication With EBCM


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Trouble Ticket Help Requests for DTC U0121
Help Request Posted
2007 Dodge Charger SE 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2B3KAL13G0
U0121: Lost Communication With Antilock Brake System Module. 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
2007 Dodge Charger SE 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2B3KAL13G0
U0121: Lost Communication With Antilock Brake System Module. 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