I had the same problem on my 1998 ford expedition xlt.
1999 ford expedition running board lights stay on.
Lights are working but the running lights and dash board lights are out.
Chris aka moose technician replied 10 years ago your looking at a fualty switch or csm for parking lamps which will not turn off.
This will work most of the time to unstick the ajar.
I tried spraying the latch with a cleaner lubricant but it did not fix it in this case.
Take some wd40 and open the doors and spray a liberal amount into each of the door latches.
This 1999 ford expedition came in with the complaint that the interior and running board light stay on.
I checked data in the gem module with my scan tool and found that even with the door closed.
Why do your inside lights and your running board lights stay on.
The 1999 ford expedition has 3 problems reported for door ajar light stays on.
The interior lights and running board lights stay on and drain my.
1999 ford expedition the inside and running board lights stay on and some times the wipers work all by themself the door ajar light is on when this happens.
My 1999 ford expedition the door ajar light stays on after all doors are closed.
The lights stay on all the time now.
The lights stay on all the time now.
1999 ford expedition the inside and running board lights stay on and some times the wipers work all by themself the door ajar light is on when this happens.
Even w read more.
Then open and close the doors firmly several times.
Just the running board lights and the interia lights stay on for 30 sec.
The inside lights and running board lights will stay on as long as the door ajar light stays on any thoughts than read more.
Average failure mileage is 110 350 miles.