Yes, It's possible repair the A5 card.
Remove metal cover and in upper right side you'll see 4 mosfet transistors and a voltage regulator.
These transistors supply voltage for the steering motor, check these mosfet surely you have one shorted. Also check transistor drivers.
Regards
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.