Trunk light switch is part of the trunk light socket assembly...

open trunk lid and locate the trunk light switch.push switch to see if light goes off. if light does not go off, replace switch. if light does go off, adjust switch to where trunk lid operates switch when trunk is closed

There is a switch by the trunk lid and sounds like it needs replacing.

interior trunk button wont work

How difficult is it ro replace the trunk cable in a 1998 camry? The trunk is stuck shut and I was told the cable snapped.

Thanks!