DTC U3000-42: Adaptive Front Lighting System (AFS) Control Module Internal Malfunction [Adaptive Front Lighting System (AFS) Control Module]

WARNING: This page is about a different car, the 2024 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

U3000: 42 (ALH/AFS/ALV) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Auto leveling control module/adaptive front lighting system (AFS) control module/adaptive LED headlights control module internal malfunction
Detection condition	The auto leveling control module/adaptive front lighting system (AFS) control module/adaptive LED headlights control module detects the internal malfunction.
Fail-safe	The headlight leveling actuator is stopped at the position when the malfunction is determined. Perform the following controls with the adaptive LED headlights turned on. (with adaptive LED headlights) Turn off glare-free high beam. Set wide-range low beam as basic light distribution.
Possible cause	Auto leveling control module/adaptive front lighting system (AFS) control module/adaptive LED headlights control module malfunction (internal malfunction) (Refer to applicable ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE REMOVAL/INSTALLATION in the service information.)
Repeatability verification procedure	Clear the DTC recorded in the memory. (see CLEARING DTC .)
System wiring diagram	Not applicable