STEERING IS EXTREMELY OVERACTIVE AND SEEMS TWITCHING, MEANING AT LOW SPEED OR AT HIGH RATE OF TRAVEL VERY SLIGHT MOVEMENTS OF THE STEERING WHEEL CAUSE THE VEHICLE TO MOVE SUDDENLY, AND UNCONTROLLABLY, PREVIOUS OWNER WENT OFF HIGHWAY AND FELT UNSAFE IN VEHICLE BECAUSE OF THIS ISSUE. I IMAGINE THIS HAS TO DO WITH THE VARIABLE ASSIST POWER STEERING BUT CANNOT FIND ANY DIAGNOSTIC AIDE IN RESOLUTION OF ISSUE.