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Home >> Mazda >> 2021 >> CX-9 Signature >> Repair and Diagnosis >> External Pages >> Different car >> Section 84 (On-Board Diagnostic - Adaptive Front Lighting System Control Module) >> DTC B1044-01; Auto Leveling Sensor Circuit Malfunction >> Notes
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DTC B1044-01; Auto Leveling Sensor Circuit Malfunction: Notes

WARNING: This page is about a different car, the 2017 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION AND POSSIBLE CAUSE

Description Auto leveling sensor circuit malfunction
Detection condition
  • Adaptive front lighting system (AFS) control module detected the auto leveling sensor circuit voltage of 0.25 V or less or 4.75 V or more for 10 s or more with the ignition switched ON (engine off or on).
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
  • Auto leveling sensor connector or terminal malfunction
  • Adaptive front lighting system (AFS) control module connector or terminal malfunction
  • Short to ground in wiring harness between the following terminals:
    • Adaptive front lighting system (AFS) control module terminal I-Auto leveling sensor terminal C
    • Adaptive front lighting system (AFS) control module terminal K-Auto leveling sensor terminal B
      • Adaptive front lighting system (AFS) control module terminal C- Auto leveling sensor terminal A
  • Short to power supply in wiring harness between the following terminals:
    • Adaptive front lighting system (AFS) control module terminal I-Auto leveling sensor terminal C
    • Adaptive front lighting system (AFS) control module terminal K-Auto leveling sensor terminal B
      • Adaptive front lighting system (AFS) control module terminal C- Auto leveling sensor terminal A
  • Open circuit in wiring harness between the following terminals:
    • Adaptive front lighting system (AFS) control module terminal I-Auto leveling sensor terminal C
    • Adaptive front lighting system (AFS) control module terminal K-Auto leveling sensor terminal B
      • Adaptive front lighting system (AFS) control module terminal C- Auto leveling sensor terminal A
  • Auto leveling sensor malfunction
  • Adaptive front lighting system (AFS) control module malfunction
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