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Home >> Mazda >> 2021 >> CX-3 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 44 (On-Board Diagnostic - Adaptive Front Lighting System Control Module) >> DTC U3000-49: AFS Control Module Internal Malfunction >> Notes
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DTC U3000-49: AFS Control Module Internal Malfunction: Notes

WARNING: This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.
System malfunction location AFS control module internal malfunction
  • RAM/ROM malfunction
  • AFS function malfunction
  • CAN hardware malfunction
Detection condition 
  • RAM/ROM malfunction
    • The AFS control module detected a malfunction in the internal RAM/ROM.
  • AFS function malfunction
    • The AFS control module detected AFS function malfunction three times. 
  • CAN hardware malfunction
    • The AFS control module detected CAN hardware malfunction three times. 
Fail-safe 
  • RAM/ROM malfunction
    • The swivel actuator is moved to the center.
    • The headlight leveling actuator is stopped at the position when the malfunction is determined.
  • AFS function malfunction
    • Not applicable
  • CAN hardware malfunction
    • The swivel actuator is moved to the center.
    • The headlight leveling actuator is stopped at the position when the malfunction is determined.
Possible cause
  • AFS control module internal malfunction
System wiring diagram  -
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