Dimmer Switch Shorted to Ground

Tests 1 - 3:

Test 4:

SYMPTOM
DIMMER SWITCH SHORTED TO GROUND

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

SET CONDITION
The voltage of the Panel Lamps Dimmer Signal circuit has gone below 0.3 volts for 5 seconds.

POSSIBLE CAUSES
- Left multifunction switch shorted
- Panel lamps dimmer signal circuit shorted to ground
- Headlamp switch return circuit shorted to ground
- BCM