Ranger 4x4 lights

Can anyone help me before my mechanic tears all of his hair out! I had a reconditioned gearbox fitted in my 2001 Ranger but since then the 4x4 light won’t go out on the dash. I bought a new cable as it seemed as though the nodule on the end wasn’t connecting properly & this worked for about 1/2 an hour then the annoying little light was there again. Has anyone else had this problem? If so…how did you fix it?
Thanks for any suggestions

Activation switch could be shorted.

Thanks for that, will pass it on

If there is just a simple switch connection to ground that turns on the light then the switch contacts may just be dirty.