Hey guys I'm having a bit of a problem with my XT660R and I can't seem to get to the bottom of it.

My engine management light is on and fault code 46 has shown. I'm aware that this is voltage problem and the usual suspect is a duff battery or the charging system.
I've checked the battery (it's a new one) and I'm getting good voltage with yhe multi-meter. I've started the bike and the voltage increases to around 14.5 as the revs rise, the stator reads correct voltage, connector to reg/rec is good ect. So charging system is fine.

When I go into the CO menu to see the Rev counter and start the bike, it runs fine. Then if I turn the ignition off and on again the light clears and the bike starts and runs fine, before inevitably showing the fault code again, even whilst I'm riding?

I've also checked the battery's voltage through the diagnostics menu and it'll usually show 7-9 volts.

I'm not really sure where to go from here?