I have a manitou ME316 with fault code 108 - ACS under voltage, in the trouble shooting chart it says fault detected by canion, i believe this must meen the can bus circuit detected the fault. The fault is very strange because the error code only appears when you release the hand brake. I have changed the OPT10 and the VMC with a different truck and they are both ok. Battery voltage apperas to be ok on all heavy wiring and all control wiring.