Reset the light of the T-Belt Toyota 4runner

God bless you companions, I have this problem, the indicator of which is already time to change the time strap, and my brother told me that he already changed it but did not reset the light of the change indicator to 100 thousand km, how can I do to reset it myself so that that light goes out? My car is a 1997 Toyota 4runner

You must disassemble the watch box, behind it carries a connection without cables that you must take and turn 180º and connect it again and it would be.

If you bring you the new box you must dismant