PSCM-U300362 /power steering fault

[330hp Wagon]

Hi everyone

I recently changed my battery along with a questionable alternator, (don’t think it’s a good brand) due to a fault in the power steering where it would make weird noises on standstill and also made some metallic sounds (during driving no problems or issues). What I noticed is that when I am in drive or reverse and turn the wheel at a standstill voltage comes to around 12V but while driving with hard acceleration voltage comes to 14.5V.

Does this error code (PSCM-U300362) have any relevancy with other modules? (for example the alarm module; because I read in another post of someone saying with the same error that alarm module needs to be changed, but didn’t make sense) if not then I will get a better brand alternator and try my luck because I dont have options.

(FYI power steering fluid and it’s housing is brand new, and there is no fluid loss, also I have a facelift V60 T6 which means it’s electric and not belt driven)