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DTC B10A4:86 [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE]

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2016 – MX-5 – i-ACTIVSENSE

DTC B10A4:86 [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE]

Description

Communication error with swivel actuator (RH)

Detection condition

  • Adaptive front lighting system (AFS) control module could not receive the signal from the swivel actuator (RH) for 5 s or more with the ignition switched ON (engine off or on).

Fail-safe

  • The swivel actuator (RH) is stopped at the position when the malfunction is determined.

  • The swivel actuator (LH) 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 (RH) malfunction

  • Adaptive front lighting system (AFS) control module malfunction

System wiring diagram

Not applicable

Diagnostic Procedure

Step

Inspection

Action

1

 VERIFY IF MALFUNCTIONING LOCATION IS SWIVEL ACTUATOR (RH) DEPENDING ON REPEATABILITY

Yes

Replace the front combination light (RH), then go to the next step.

(See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION.)

No

Go to Step 3.

2

 VERIFY THAT REPAIRS HAVE BEEN COMPLETED

Yes

Replace the adaptive front lighting system (AFS) control module, then go to the next step.

(See ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE REMOVAL/INSTALLATION.)

No

Go to the next step.

3

 VERIFY IF OTHER DTCs DISPLAYED

  • Are any other DTCs displayed?

Yes

Repair the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE].)

No

DTC troubleshooting completed.

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