DTC B1439-87: Communication Error With Front Combination Light (RH) [Adaptive Led Headlights Control Module]: Outline

DTC B1439:87 (ADAPTIVE LED HEADLIGHTS CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with front combination light (RH)
Detection condition	The adaptive LED headlights control module detected communication error with the front combination light (RH).
Fail-safe	Perform the following controls with the adaptive LED headlights turned on. Turn off glare-free high beam. Set wide-range low beam as basic light distribution. The headlight leveling actuator is stopped at the position when the malfunction is determined.
Possible cause	Front combination light (RH) malfunction Adaptive LED headlights control module malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable