for ur original question, no, it won't impact ur background check. Most big companies would just confirm that u worked there during this and this time, ur title, and that's it nobody would mention that u had pip. it would cause unnecessary lawsuits..
I did a background check for a former group member in my previous company, they needed information not only title, start/end dates, but also the reason why he left the company and the rehire eligibility... It is not IT company but an investment bank...