RAM 2500 Truck 4WD V8-5.7L VIN D (2005)
Door Lock Cylinder Switch: Testing and Inspection
1. Disconnect and isolate the battery negative cable.
2. Disconnect the door cylinder lock switch pigtail wire connector from the door wire harness connector.
Door Cylinder Lock Switch Tests
3. Using an ohmmeter, perform the resistance tests between the two pins in the door cylinder lock switch pigtail wire connector. Actuate the switch
by rotating the key in the door lock cylinder to test for the proper resistance values in each of the three switch positions, as shown in the Door
Cylinder Lock Switch Tests table.
4. If the switch fails any of the resistance tests, replace the faulty door cylinder lock switch as required.
