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U0105 Diagnostic Trouble Code Discussion for January 2010

Lost Communication With FICM

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Trouble Ticket Help Requests for DTC U0105
Help Request Posted
2004 GMC Sierra 3500 6.6L No Start, MIL Lamp on VIN: 1GTHK33214
U0105: lost communication fuel injector control module. vehicle towed in with no start. checked codes had p0335(ckp circuit a), p0105(lost communication ficm), p0106(lost communication gpcm). cleared codes. po105 comes back everytime, only have to turn key on for code to come back. vehicle cranks over great, but no...
January 13, 2010