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U2105 Diagnostic Trouble Code Discussion for July 2013

TCM - No Communication With Engine Control Module


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Trouble Ticket Help Requests for DTC U2105
Help Request Posted
2006 Pontiac G6 GT 3.5L No Start VIN: 1G2ZH55856
U2105: Lost Communication With Engine Control System. ... with the engine knocking and banging like real bad and oil all over the bottom end. Long story short, owner overfilled engine with approx 1 to 1.5 gallons of oil. Customer wanted a used engine, so we got one with about 47k miles and installed it. Kept the...
July 19, 2013
2006 Pontiac G6 GT 3.5L No Start VIN: 1G2ZH15806
U2105: Lost Communication With Engine Control System. ... start. It's back to us for the second time. Last time it did crank, start to fire, then stalled. The U7300 is identified by the Modis, there is nothing in MOD at all, haven't found anything here either. Car acted like the VTD activated, but scan data says ...
July 25, 2013
2006 Pontiac G6 GT 3.5L No Start VIN: 1G2ZH55856
U2105: Lost Communication With Engine Control System. ... with the engine knocking and banging like real bad and oil all over the bottom end. Long story short, owner overfilled engine with approx 1 to 1.5 gallons of oil. Customer wanted a used engine, so we got one with about 47k miles and installed it. Kept the...
July 19, 2013
2006 Pontiac G6 GT 3.5L No Start VIN: 1G2ZH15806
U2105: Lost Communication With Engine Control System. ... start. It's back to us for the second time. Last time it did crank, start to fire, then stalled. The U7300 is identified by the Modis, there is nothing in MOD at all, haven't found anything here either. Car acted like the VTD activated, but scan data says ...
July 25, 2013