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U1074 Diagnostic Trouble Code Discussion for February 2012

loss of comms with tcm history code


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Trouble Ticket Help Requests for DTC U1074
Help Request Posted
2004 GMC Sierra 2500 HD SLE 6.6L No Start VIN: 1GTHK23264
U1074: loss of comms with tcm history code. this truck was sent to me after the above repair was done. the dealer told the r/o that they were unable to find anything wrong.we first confirmed correct glow plugs were used, they were. what happens is the glow plug cycle is over in two or less seconds. load...
February 13, 2012
2004 GMC Sierra 2500 HD SLE 6.6L No Start VIN: 1GTHK23264
U1074: loss of comms with tcm history code. this truck was sent to me after the above repair was done. the dealer told the r/o that they were unable to find anything wrong.we first confirmed correct glow plugs were used, they were. what happens is the glow plug cycle is over in two or less seconds. load...
February 13, 2012