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Home >> Subaru >> 2021 >> Legacy Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> SUBARU Eyesight System (Driver Assist) (Diagnostics) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC B281C: Incompatible With Eyesight (EPS)

DTC B281C: Incompatible With Eyesight (EPS)

Detected when the EPS control module does not recognize EyeSight.

Or, detected when communication between EPS control module and combination meter is not possible.

DTC detecting condition: 

The EPS control module does not recognize EyeSight.

Trouble symptom: 

All functions of EyeSight system do not operate.

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to EYESIGHT (DIAGNOSTICS)>General Description>CAUTION .
  1. CHECK DTC  .

    Read the DTC of [EyeSight] using the Subaru Select Monitor. Ref. to Eyesight (Diagnostics)>Diagnostic Trouble Code (DTC) .

    Is DTC U**** displayed? (Current malfunction)

    Yes  : Perform the diagnosis for LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE . Go to  2 .

    No  : Go to  3 .

  2. CHECK DTC  .

    Read the DTC of [EyeSight] using the Subaru Select Monitor. Ref. to Eyesight (Diagnostics)>Diagnostic Trouble Code (DTC) .

    Is DTC B281C still a current malfunction?

    Yes  : Go to  3 .

    No  : Using the Subaru Select Monitor, perform the clear memory of [EyeSight]. Ref. to COMMON (DIAG)>CLEAR MEMORY .

  3. CHECK DATA MONITOR  .

    Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [EyeSight]. Ref. to Eyesight (Diagnostics)>Data Monitor .

    • EyeSight Specification

    Is the data [Yes]?

    Yes  : Go to  4 .

    No  : Go to  5 .

  4. CHECK DATA MONITOR  .

    Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [EyeSight]. Ref. to Eyesight (Diagnostics)>Data Monitor .

    • EyeSight Recognition Status (EPS)

    Is the data [Detect]?

    Yes  : Replace the stereo camera. Ref. to EYESIGHT>STEREO CAMERA>REMOVAL .

    No  : Replace the EPS control module. Ref. to POWER ASSISTED SYSTEM (POWER STEERING)>POWER STEERING CONTROL MODULE .

  5. CHECK DATA MONITOR  .

    Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [EyeSight]. Ref. to Eyesight (Diagnostics)>Data Monitor .

    • EyeSight Recognition Status (EPS)

    Is the data [Detect]?

    Yes  : Replace the EPS control module and combination meter. Ref. to POWER ASSISTED SYSTEM (POWER STEERING)>POWER STEERING CONTROL MODULE . Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER>REMOVAL .

    No  : Replace the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER>REMOVAL .

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