'01 Explorer Sport Door Ajar Light
2001 Explorer Sport with a constant 'door ajar' light. It happened once before when I was having problems opening the driver door. Dealer charged me twice: once to diagnose the problem and again to install a new door lock mechanism, about $300 total.
Same door-opening problem happended on the passenger door, but seemed to correct itself (with a loud pop) eventually. Now neither the rear hatch or door will unlock, and the light stays on.
I'm on disability and cannot really afford a shop visit. Any assistance is greatly appreciated.