On my 2000 Quest the door open light stays on with all doors shut. In the past I have had to close the rear hatch several times to get the light to shut off, so I suspect the rear hatch but am not ruling out the other four doors. How would I pinpoint the problem and where are the sensors located? Thanks.

I think the sensor for the rear hatch door is in the latch. The other sensors are located on the body of the vehicle not the doors, lookon the bottomback corner of the doors.