DTC B10A3-87: Communication Error With Swivel Actuator (LH) (Adaptive Front Lighting System (AFS) Control Module): Outline

DTC B10A3:87 (ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with swivel actuator (LH)
Detection condition	The adaptive front lighting system (AFS) control module cannot receive the signal from the swivel actuator (LH).
Fail-safe	The swivel actuator (LH) is moved to the center or stopped at the position when the malfunction is determined. The swivel actuator (RH) is moved to the center. Control of the headlight auto leveling system is continued with the headlight leveling actuator positioned -0.65° from where the malfunction is determined.
Possible cause	Front combination light (LH) connector or terminal malfunction Adaptive front lighting system (AFS) control module connector or terminal malfunction Short to ground in swivel actuator (LH) LIN communication line Short to power supply in swivel actuator (LH) LIN communication line Open circuit in swivel actuator (LH) LIN communication line Swivel actuator (LH) malfunction Adaptive front lighting system (AFS) control module malfunction
Courtesy of MAZDA MOTORS CORP.
Courtesy of MAZDA MOTORS CORP.	Courtesy of MAZDA MOTORS CORP.