Hi- recently got 21 year old 110 - not got a manual yet so I'm in the dark! Warning light on (looks like an overhead view of 4 wheels and axles - like a squashed H) -does this mean the diff lock is on? If so, I cant get the diff lock off! I have tried moving the stumpy gear stick but the light stays on. Could it be a fault in the light- I dont want to drive it incaase the diff lock is really on and I do some damage! I would appreciate advice from people in the know! Thanks