U2105 Diagnostic Trouble Code Discussion for February 2017
TCM - No Communication With Engine Control Module
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| Help Request | Posted | |
| 2002 Chevrolet Silverado 3500 6.6L MIL Lamp on VIN: 1GCJC33152 U2105: Lost Communication With Engine Control System. ... this truck that sets U1800, U2104 and U2105 every time you drive it. Sometimes takes several miles. Sometimes just idling. Also illuminates the MIL. Symptom are showing up in the transmission shift quality. It is harsh but not all the time. I believe it t... |
February 28, 2017 |
