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Home >> Mazda >> 2024 >> CX-30 Preferred >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> On-Board Diagnostic - Adaptive Front Lighting System Control Module >> DTC U3000-49: Auto Leveling Control Module/Adaptive Front Lighting System (AFS) Control Module/Adaptive Led Headlights Control Module Internal Malfunction [Adaptive Front Lighting System (AFS) Control Module]
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DTC U3000-49: Auto Leveling Control Module/Adaptive Front Lighting System (AFS) Control Module/Adaptive Led Headlights Control Module Internal Malfunction [Adaptive Front Lighting System (AFS) Control Module]

U3000: 49 (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
  1. 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
  1. Clear the DTC recorded in the memory. (see CLEARING DTC .)
System wiring diagram
  • Not applicable