Please help. The car shifts and drives fine but the d4 is flashing, I replaced the tcm from one at the junk yard yet it still flashes, i connected the brown and green wire and the d4 light blinked once every 4 seconds. So if anyone knows what code it is which I think is code one, but I don't have the transmission code diagram and I can't find it anywhere, anybody with knowledge, please help me out, thanks a bunch!