I'll jump in and report the same issues... MB would power on, fan on CPU would spin, then power down... This is after working flawlessly with no changes over several months. I tried every different type of way to make it work.. nothing..
I ended up turning the MOBO to start on power and it works... It still can tell the ignition is switched because it only supplies power when its turned.
2012 Honda Pilot (In Progress)
2010 Honda Accord (After the Pilot)
2008 Honda VTX1800N
J8 is dependent on the way its connected? that does not make sense at all if all J8 does is a switch event when power is applied to the M2 and another switch event when power is removed( ignition event). it shouldnt be that way or else they should of mentioned that in the manual.
if you look at a switch in its simplest form, all its doing is bridging a gap between two wires...if the switch is turned the other way..same thing until the switch makes contact for the two wires...
i have to go to my pc and check how my m2 is connected...
i connected my connector to J8 with no thinking of which way it should be connected because like I said..all its suppose to do is bridge a gap to give the signal for the MB to turn on...
Parts Collected [98.5%]
Installation & Fabrication [98%]
Total Completion Level [96.9 %]