Dimmer Switch Open Circuit

Tests 1 - 3:

Test 4:

SYMPTOM
DIMMER SWITCH OPEN CIRCUIT

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

SET CONDITION
Any time the voltage on the Panel Lamps Dimmer Signal circuit exceeds 4.8 volts for 5 seconds.

POSSIBLE CAUSES
- Panel lamp dimmer switch
- Panel lamps dimmer signal circuit open
- Headlamp switch return open
- BCM