DTC U0122-87: Communication Error With DSC HU/Cm [Adaptive Front Lighting System (AFS) Control Module (Us)]: Outline

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DTC U0122:87 [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE (US)] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with DSC HU/Control Module
Detection condition	The adaptive front lighting system (AFS) control module cannot receive CAN signal from the DSC HU/Control Module.
Fail-safe	The swivel actuator is moved to the center. The headlight leveling actuator is stopped at the position when the malfunction is determined.
Possible cause	Malfunction in CAN communication line between DSC HU/Control Module and adaptive front lighting system (AFS) control module
System wiring diagram	Not applicable