F 150 2WD Pickup V6-4.2L VIN 2 (1997)
Door/Trunk Ajar Indicator/Lamp: Testing and Inspection
Use 73 Digital Multimeter to measure door disarm switch resistance with key removed from the door lock cylinder. The resistance should be more than
25,000 ohms. If not, replace the door disarm switch.
Measure the door disarm switch resistance with the key fully rotated to the end of the travel in the unlock direction. The resistance should be less than
200 ohms. If not, replace the door disarm switch.
