Lamp Short Test

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