RAM 3500 Van V8-360 5.9L VIN 5 Magnum (1998)
Lock Cylinder Switch: Description and Operation
SYSTEM OPERATION
The door lock cylinder switches are mounted to the back of the key lock cylinder inside each front door. They are normally-open momentary
witches that close to ground only when the lock cylinder is rotated to the unlock position.
The door lock cylinder switches cannot be repaired and, if faulty or damaged, they must be replaced.