Hi everyone i have a vw passat 2002 my key fog is failing to lock and unlock my doors.i have changed the fog battery to no avail.the little red light on the fog is blinking normal evertime i press it and one light outside the vehicle on the fender and other lights are flashing normal except the one on left fender.i have disconnected th battery negative terminal to try t reset th system but to no avail.
please can someone help.thx