1995 e150 Door lights staying on

I have a 95 e150 v8 conversion...The door lights stay on..I have wd40 all door switches...and inspected them...they looked ok... also made shure switch was in off position on dash. I dont know how to futher remedy this situation. Can i pull all switches from the door jams and would/should that turn them off? Also, is there a timer for the iterior lights controled by the switch on the dash?? Any help would be appreciated..Thankyou.:banghead:

Just saw this thread. I have an 02 E-150 Conversion and had an issue with the door locks freaking out and locking/unlocking all the time - while it was sitting and while driving. Found the rear windows did not seal well and water leaked in the rear door corroding the switch on the rear door. Removing the switch "cured" the symptom. You should be able to remove the door light switches one by one until you find the offender. Good luck.