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Potential Tuner
U0100 code
Hi, I was driving my Holden VE ss with E38 ECM when it just died and wouldn't start. Connected scanner and comes back with U0100 communication lost with ECM.
Ok so I have had an ABS fault for some time, if the ABS module is faulty would that stop communication ? I can read the ECM at all but still can read TCM, also if I unplug Abs plug, hp won't even connect. I also tried another ECM and same deal.
Anyone had this before ?
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Tuner in Training
Your high speed can bus has an issue. Check ecm power, ground, and serial data lines. The data lines should look similar to pins 6 and 14 on the dlc when they are measured to ground-regular DC voltage check.
All modules need 3 things to operate. Power, ground, and data line(s). Your missing one. If not the module is faulty.
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Tuner in Training