LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2022 >> 3 Select, 4D Sedan >> Repair and Diagnosis >> External Pages >> Different car >> Section 79 (On-Board Diagnostic - Adaptive Front Lighting System Control Module) >> DTC B10A3-86: Error Signal Received From Swivel Actuator (LH) [Adaptive Front Lighting System (AFS) Control Module] >> Diagnostic Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Procedure

WARNING: This page is about a different car, the 2021 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
DTC B10A3:86 [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE] DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 INSPECT SWIVEL ACTUATOR (LH) FOR MALFUNCTION
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • Perform the DTC inspection for the adaptive front lighting system (AFS) control module.

    (See DTC INSPECTION .)

  • Is the same Pending DTC present?
Yes Replace the front combination light (LH) and perform the repair completion verification.
(See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION .)
No Go to repair completion verification 2.
Repair completion verification 1 VERIFY THAT VEHICLE IS REPAIRED
  • Install/connect the part removed/disconnected during the troubleshooting procedure.
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • Perform the DTC inspection for the adaptive front lighting system (AFS) control module. (See DTC INSPECTION .)
  • Is the same Pending DTC present?
Yes Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW (US) .)
If the CAN communication is normal, perform the diagnosis from Step 1.
No Go to the next step.
Repair completion verification 2 VERIFY IF OTHER DTC IS DISPLAYED
  • Perform the DTC inspection. (See DTC INSPECTION .)
  • Are any other DTCs displayed?
Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
No DTC troubleshooting completed.