I am putting a 2012 3.7 back together that was a light front wreck. I went looking for the lug nut key and stuck my head in the spare tire well to see if it was in there. On the rear bulkhead favoring the drivers side under the trunk carpet is some kind of sensor bolted down with a pig tail running into it. My issue is the whole pig tail was cut off. Does any one know what sensor this is.