Hiya John,
Just checking in to give / confirm the part number, but i see you figured your problem out after i went to bed, glad to be of help :thumb:
I asked another owner on here what help was provided with his HE system and he referenced only the fault code text itself, I was really expecting him to have a book or CD or at least something :doh:
Perhaps you can help by sharing what you know or have been told.
I am actually in the process of trying to fathom out how the thing can be retro upgraded in the field, with just the one connector for the OBDII lead(s) on the unit, through which it gets its 12V to power it and no other external connector at all, i just can't see how it could be connected to a PC. There is a half dozen optional cost leads / adapters listed for it but these are all to use it on different vehicle systems, there is no PC connection lead / adapter, and if there were, getting the 12 V in to power the unit would be tricky requiring i suspect an additional mains type power supply.
Even more interestingly, upon taking the back cover off, (well there ain't no warranty seals,) there is a large pin head connector standing out on the PCB that is fairly obviously used to program the Unit during manufacture, which leads me to suspect it is not even possible to update the unit via its single OBDII connector socket. And this internal pin head plug is not something customers should be accessing which means it rather looks like the unit must be returned to the manufacturer for re programming.
Oh well, do let us know how you get on anyway chap
Regards
Colin