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U1120 Diagnostic Trouble Code Discussion for July 2018

Lost Wheel Distance Message


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Trouble Ticket Help Requests for DTC U1120
Help Request Posted
2005 Jeep Grand Cherokee Laredo 3.7L MIL Lamp on, limp home mode VIN: 1J4GS48K85
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
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