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U2105 Diagnostic Trouble Code Discussion for September 2009

TCM - No Communication With Engine Control Module

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Trouble Ticket Help Requests for DTC U2105
Help Request Posted
2002 Saturn L300 3.0L No Start VIN: 1G8JW54R02
U2105: Lost Communication With PCM. ... came into the shop yesterday for a no start. The first thing i did was checked for codes with my scan tool found U2105 for a communication error with the PCM. I then tried to communicate with the PCM and could not, However i was able to communicate with ev...
September 18, 2009