DTC B1044-01; Auto Leveling Sensor Circuit Malfunction: Notes

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

Fig 1: Adaptive Front Lighting System Control Module Circuit Diagram

Courtesy of MAZDA MOTORS CORP.