Possible Causes
NO COMMUNICATION WITH BODY CONTROL MODULE (BCM)
BODY CONTROL MODULE (BCM) DTC(S) PRESENT
DIMMING MESSAGE NOT SEEN AT RATE EXPECTED
AUTOMATIC TEMPERATURE CONTROL (ATC)
BODY CONTROL MODULE (BCM)
NO COMMUNICATION WITH BODY CONTROL MODULE (BCM)
BODY CONTROL MODULE (BCM) DTC(S) PRESENT
DIMMING MESSAGE NOT SEEN AT RATE EXPECTED
AUTOMATIC TEMPERATURE CONTROL (ATC)
BODY CONTROL MODULE (BCM)