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U0100 Diagnostic Trouble Code Discussion for June 2013

Lost Communication With ECM


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Trouble Ticket Help Requests for DTC U0100
Help Request Posted
2006 Mazda 6 S 3.0L No Start VIN: 1YVHP80D06
U0100: Communication Error To PCM. ... sitting on lot for 9 months. drove 30 miles and cut off. i have no comm to pcm. i have checked b+ and grounds at pcm. B+ at dlc. ohmed grounds at dlc. i see on flow chart for can wires it goes from bcm to pcm. if i unplugged bcm i get no codes. plug back i...
June 04, 2013
2006 Mazda 6 S 3.0L No Start VIN: 1YVHP80D06
U0100: Communication Error To PCM. ... sitting on lot for 9 months. drove 30 miles and cut off. i have no comm to pcm. i have checked b+ and grounds at pcm. B+ at dlc. ohmed grounds at dlc. i see on flow chart for can wires it goes from bcm to pcm. if i unplugged bcm i get no codes. plug back i...
June 04, 2013