[maxtom]

I have one from BAFX, with the ActiveOBD app it works for simple codes. If you want complete control of the car you can get a openport (even the aliexpress copies work for simple diagnosis) + SSM4, but that requires more technical knowledge (working with virtual machines, different drivers, etc)

 

[maxtom]

P1604 + P1603 are these simple codes erasable by BAFX or OpenPort? Also what OBD2 protocol does our car have? Is it CAN?

They can probably be erased, but if the failure is real they will reappear.
OpenPort + SSM4 is the dealer software, so it can access everything (but cleaning the code is just temporary if your solenoid is actually bad)