do not replace anything yet ! first check the electrical system . disconnect the negative cable ,1 y/ Z% v5 T& Z& R- t
connect a test light between cable and battery post . if the test light lights up bright , there could be a short circuit somewhere . pull out each fuse to see until the test light goes dim , , H" D9 f) l6 D/ g% I v7 l. ^now you know in which that device is draining the battery .