so I have a 1994 landcruiser. I put it into neutral, low for the center lock to engage. The light turns on and it engages properly and i hear the click. When i put it back into high and then reg drive. The light does not turn off (center diff lock light) and my locker still feels engaged. I tried doing everything possible. Reverse left right, s turning, switching thw transfer case, ..what shall do. Any suggestion. Now it does feel a very slight grind when I put it into low to turn it off or to turn it off regardless. Is that a problem and any suggestions to disengage it?