Is the ram actually storing a fault that wont let the car run, or is the ram being corrupt causing the program not to function correctly. what kind of problems have you seen that are fixed by doing this procedure? I have worked on literally hundreds of these units, and never ran across this problem, You always learn something new in this trade. Maybe i would not have had to replace a cpu or 2 if i would have tried this out before getting a new one. thanks for the info bayblue.