Lamp Short Test
With all the doors closed and the Light Switch turned off, disconnect the Door jamb Switches and the Light Switch one at a time.^ If the lights go out when a particular switch is disconnected, replace that switch.
^ If the lights remain lit with all switches disconnected, check for short to ground in CKT 149 or 1393. If OK, refer to Audible Warning for additional details. Audible Warning Device