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Yes !!…you are concerned with pins 2,6, and 14 !!…I have actually shorted the bus to power and to ground (won’t damage modules) and crazy stuff happens !!…no start, no FOB etc…
FIXED !!!
Tested voltage at battery connection terminal by fuse box engine day only getting 6 V..
loosened up bolt exercise connections put it back showing 12 .5 all systems go..
so bizarre all happened when removing steering wheel and battery cable from rear battery..