Refer to Vehicle Theft Security System in the index of this service manual for the location of complete door lock cylinder switch wiring diagrams.
(1) Disconnect the door lock cylinder switch wire harness connector from the door wire harness connector.
(2) Using an ohmmeter, perform the switch resistance
checks between the two cavities of the door
lock cylinder switch wire harness 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 Lock
Cylinder Switch chart.
(3) If a door lock cylinder switch fails any of the resistance tests, replace the faulty switch as required.