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U0121 Diagnostic Trouble Code Discussion for February 2014

Lost Communication With EBCM

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Trouble Ticket Help Requests for DTC U0121
Help Request Posted
2010 Chevrolet Equinox LS 2.4L MIL Lamp on, limp in mode, 10mph VIN: 2CNFLCEW6A
U0121: loss of communiction ABS module. Customer stated that the vehical will go into Limp in mode and will only go 10 MPH with the throttle wide open. This happens 5 times a day or so. Wen this happens, the check engine and traction control lights come on. She then says she can turn the key off and...
February 21, 2014