Hey LaMarcus==There is a short somewhere. You need to get a wiring diagram as I am quite sure the radis is supposed to be on a separate fuse not wired with the lights. GoodluckJoe
The IOD fuse feeds the interior lights, radio, and other interior items.
Try the lightbulb it self, corrosion on the contacts
I would say 1 of your door switches are bad or your door doesn close all the way.
Use a test light connected to the fan motor - if it lights fan motor is bad if it does not light could be fuse, relay, switch, or resistor
Engine control module
There is a dashboard illumination switch that controls the brightness. If it is pushed up fully, the interior lights will stay on. Lower the switch slightly until the interior lights go off. When doors are closed, if the switch is lowered, the lights should go off after about 30 seconds max, maybe less. Hope this Helps, it did on mine.
Same one that controls interior lighting lights come on inside car trunk should too when opened check lightbulb change if necessary have a good day
If a Jeep Grand Cherokee's air conditioner is not blowing any air it could mean that the blower motor has went out. Also the AC controls could be bad.
If only the interior lights won't work, check the fuses.
It should say TAIL for taillights or maybe brake lights.
check the fuse
Blown bulbs.
Wipers, interior lights, exterior lights, alarm, some of the hvac system,.......
The interior light switch is on or a door switch is bad.
Remove the fuse on the interior fuse box
wiring problem
The fourth fuse in the interior fuse panel controls the power windows and locks on 2000-2001 Grand Prix. 25 amp silver fuse.