Missing Lamp Dimming Message

SYMPTOM MISSING LAMP DIMMING MESSAGE
When Monitored and Set Condition: MISSING LAMP DIMMING MESSAGE
- When Monitored: Continuously with ignition on.
- Set Condition: This condition occurs when the Transfer Case Control Module stops receiving a bus message for Lamp dimming for the period of 5 seconds. The lamps are illuminated to the correct intensity through Pulse Width Modulation (PWM). If this DTC sets the Lamps will illuminate at daytime brightness.

POSSIBLE CAUSES
- COMMUNICATION DTC'S PRESENT
- INTERMITTENT WIRING AND CONNECTORS
- CONDITION PRESENT