1990 dodge b 250 van 318 has 1- 5pin relay orange/blackT [ground] from PCM? gets 12v from j2 in run mode blue/whiteT wire NO contact appears to go to a single connection on tranny thru 2 conn. my question is what is this relay called and what is its purpose? also what is happening in a de-energized state? why 5pin? thanks in advance dawnbri p.s. the NC contact appears to run to ground connection when deenergized!