Courtesy Lamp Output Shorted to Battery

Test 1 - 3:

Test 4 - 5:

SYMPTOM
COURTESY LAMP OUTPUT SHORT TO BATTERY

WHEN MONITORED
Ignition in RUN and IOD fuse/connector installed.

SET CONDITION
The BCM has detected a short to battery on either the Courtesy Lamp Driver circuit or the Courtesy Lamp Control circuit for 5 seconds.

POSSIBLE CAUSES
- Checking each overhead and rear reading bulbs
- Courtesy lamps driver CKT short to voltage
- Headliner harness short to voltage
- Body control module