DanG37

stock.v33, does it work sufficiently to show any codes? As far as how to get it to show codes should the car be working sufficiently for it to do so, I don't have first hand knowledge as I haven't as of yet had to have my G37 blink codes off to me, but here's what I found via a quick internet search:
https://www.infinitihelp.com/diy/com...des_read_2.php

But to re-echo what's been posted earlier in this thread, if you have water down there, the issue is almost surely the sunroof drain. There's a lot of videos on youtube on how to address this issue, but here's a starting point as posted above.
https://www.myg37.com/forums/body-in...ml#post4268890