Originally Posted by Stumppy
I had vivians looney tune loaded and after a few days checked my codes to see if I was throwing any. I had 5 different codes so I returned the truck to stock and now this is the only code Im throwing p0603 kam memory error. Anyone ever had this before? What could be causing it?
The P0603 Kam Error occurs everytime you reflash the PCM. If you clear it after reflashing, chances are it won't show again. If it does show up again, it sounds like your PCM is ready to go.