U0121 Diagnostic Trouble Code Discussion for July 2018
Lost Communication With EBCM
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| Help Request | Posted | |
| 2005 Jeep Grand Cherokee Laredo 3.7L MIL Lamp on, limp home mode VIN: 1J4GS48K85 U0121: Lost Communication With Antilock Brake System Module. Looked at waveform of CAN C no activity so I started unplugging modules on Can C the only change I had was when I unplugged C1 at PCM and plugged it back in the CAN stated sending a good wave form but only for a few minutes. There are no fault codes in the... |
July 11, 2018 | |
| 2005 Jeep Grand Cherokee Laredo 3.7L MIL Lamp on, limp home mode VIN: 1J4GS48K85 U0121: Lost Communication With Antilock Brake System Module. Looked at waveform of CAN C no activity so I started unplugging modules on Can C the only change I had was when I unplugged C1 at PCM and plugged it back in the CAN stated sending a good wave form but only for a few minutes. There are no fault codes in the... |
July 31, 2018 |
