I am posting this on behalf of my dad's 2009 punto mjd(75). A month or so back we have been seing the abs unavailable warning message. We gave the car to ass for the issue and have been told that AMARON battery was the culprit behind the warning. They told us that this issue has been found in many punto and lineas with AMARON's. But the battery was replaced just about an year ago and battery and alternator is working perfectly when checked. Can someone help us out?