@kelcijoe since your vehicle was in an accident and you got a "P0705...Power steering came back but shut off immediately right after and then check engine light, traction control and my airbag light..." I would be hesitant to just replace any one of those modules., Make sure that there is no damage to your Scion that could actually cause this. Because even a new ECU/ECM might just do the same. So, if it is a module I would change the ECM. According to the wiring diagram it should not be the TCM that controls the "things" that are going haywire :-)