At the moment I would delete these codes of the error log and see what comes back, my thoughts are that the problem is more likely to be the canbus as it has registered on 3 occasions on the last occasion 29 times, delete the error codes see what comes back when you try the truck and take it from there. I've had MR trucks do well over 5000 hrs and never experienced a failure in the reach harness.
Regards Titus
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