I have a '99 Grand Cherokee made in the Usa but imported to Europe were I currently live.. From my friends here that also have GC's I found out that I can check if there are any error's whwen codes appear on ther deck after 3on\offs... Well I did try, and guess what? Instead of getting the usual P-???? mine displays 948888! No P'ss nothing else! I wanna point out that I found nothing on the web that helps and none of my friends here in Italy have ever experienced anything like this,,, I hope you guys from the U.s.a can help.. Thanks..