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

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

Description	Communication error with swivel actuator (LH)
Detection condition	Adaptive front lighting system (AFS) control module detected communication error with the swivel actuator (LH) for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe	The swivel actuator (LH) is stopped at the position when the malfunction is determined. The swivel actuator (RH) is moved to the center, or the swivel actuators (LH) and (RH) are moved to the center. Control of the headlight auto leveling system is continued with the headlight leveling actuator positioned -0.6° 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 wiring harness between the following terminals: Adaptive front lighting system (AFS) control module terminal D-Front combination light (LH) terminal K Adaptive front lighting system (AFS) control module terminal F-Front combination light (LH) terminal J Short to power supply in wiring harness between the following terminals: Adaptive front lighting system (AFS) control module terminal D-Front combination light (LH) terminal K Adaptive front lighting system (AFS) control module terminal F-Front combination light (LH) terminal J Open circuit in wiring harness between the following terminals: Adaptive front lighting system (AFS) control module terminal D-Front combination light (LH) terminal K Adaptive front lighting system (AFS) control module terminal F-Front combination light (LH) terminal J Swivel actuator (LH) malfunction Adaptive front lighting system (AFS) control module malfunction
Courtesy of MAZDA MOTORS CORP.