DTC U0122-87: Communication Error With DSC HU/Cm [Auto Leveling Control Module (Us)]: Outline

DTC U0122:87 (AUTO LEVELING CONTROL MODULE, US) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with DSC HU/CM
Detection condition	The auto leveling control module cannot receive CAN signal from the DSC HU/CM.
Fail-safe	The headlight leveling actuator is stopped at the position when the malfunction is determined.
Possible cause	Malfunction in CAN communication line between DSC HU/CM and auto leveling control module
System wiring diagram	Not applicable