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U0101 Diagnostic Trouble Code Discussion for November 2008

Lost Communication With TCM


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Trouble Ticket Help Requests for DTC U0101
Help Request Posted
2005 Hyundai Sonata GLS 2.7L MIL Lamp on VIN: KMHWF35HX5
U0101: Lost communication with TCM. ... relay with two orange wires having power that will connect to a red wire to the tcm isn't coming on. The other wires (2) a smaller black to ground is good but the smaller grey wire that comes from pcm to turn on relay doesn't get power. My question is perh...
November 06, 2008
2005 Hyundai Sonata GLS 2.7L MIL Lamp on VIN: KMHWF35HX5
U0101: Lost communication with TCM. ... relay with two orange wires having power that will connect to a red wire to the tcm isn't coming on. The other wires (2) a smaller black to ground is good but the smaller grey wire that comes from pcm to turn on relay doesn't get power. My question is perh...
November 06, 2008