[alphasaur]

Originally Posted by BrettRS

I did, just the 80amp fuse in the engine compartment, looks OK.



Just some further thoughts after my test drive and attempt to get it to throw a code. I don't drive the BRZ often, it's my gf's daily, so not sure if it's new or unusual, but the idle seems to dip pretty hard about 3-5 seconds after starting. It always catches back up after it dips, but I can see it stutter down below a consistent idle and then pick back up to a consistent idle.



No codes on my test drive. Power steering always turned off within 10 seconds of moving in drive, sometimes on directly after restart, sometimes would come up off and then come on after rolling for a few seconds.



There is a firm lock bite when it does go, almost like you are hitting the steering wheel lock, and then it releases after a quarter of a second and you can steer without power steering. Again, unsafe to be driven, just troubleshooting.


Alongside the 'bite' when power steering goes out, there is an audible 'click' sound by my left knee when it goes out. Is the interior fuse box centered under the drivers knees or is it off to the left side? Any fuses in the interior box that anyone can suggest for me to specifically check, other than pulling and checking them all? (edit: I checked the interior fuse compartment, going to check and adding for my easy reference later when I work on it): 14ECU IG110AABS, electric power steering
9ECU IG210AEngine control unit1ECU ACC10AMain body ECU, outside rearview mirrors8OBD7.5AOn-board diagnosis system15AM17.5AStarting system19ECU IG210AEngine control unit


Any diagrams or guides where I may find the steering control harness or whatever that I have seen suggested may be loose? I think that's what you alluded to.



Still no codes and the Subi dealer can't get me in until next week, so more time to troubleshoot this weekend...


So, quick recap:


1. Still no codes
2. Dip in idle 3-5 seconds after restart (hot)
3. Steering lock 'feedback' when power steering does go out.
4. Audible click when PS goes by left knee, inside passenger compartment.



Anything else to try this weekend, I'm all ears and sockets.

https://www.ft86club.com/forums/showthread.php?t=133606
this thread seems to have info on accessing the power steering unit, not sure if this is the right direction or not. Good luck.