After talking to the Danfoss service guy, thanks Gavin, I installed a similar current sense board as this is where the problem seemed to be. The ute ran fine for about a week.
Last week I took the original board and soldered in a resistor array that was in a socket and re soldered the current sensors then replaced the board into the ute.
I have been driving for about 5 days, so far without fault. Lets hope that is the end of the problems!
Socket mounting is probably incompatible with Vehicle use due to the intermittent use (heat / cool cycle) combined with the vibration + bumps from road use, potholes + speed bumps :-)
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