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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 B10A3-86; Communication Error With Swivel Actuator (LH) >> Notes
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DTC B10A3-86; Communication Error With Swivel Actuator (LH): 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 Communication error with swivel actuator (LH)
Detection condition
  • Adaptive front lighting system (AFS) control module could not receive the signal from the swivel actuator (LH) 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.
  • 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
  • Swivel actuator (LH) malfunction
  • Adaptive front lighting system (AFS) control module malfunction
System wiring diagram Not applicable