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Home >> Subaru >> 2020 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Power Steering System (Diagnostics) >> Power Steering System >> DTC C1583: Assist MAP Selection Error >> Inspection steps
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Inspection steps

CAUTION: Always perform a steering zero point calibration after replacing the power steering computer ASSY.
  1. Diagnosis code check
    1. Use the SSM4 to confirm that C1581 is not output.

      Criteria: C1581 is not output.

      OK: Go to next step

      NG: Go to "CAN communication system (How to troubleshoot)" (Refer to HOW TO TROUBLESHOOT ) and "Meter & gauge system (How to troubleshoot)" (Refer to HOW TO TROUBLESHOOT )

  2. Assist Map Confirmation
    1. Use the SSM4 to confirm that an assist map inconsistent with the vehicle information is not written. (Refer to WORK SUPPORT )

      OK: Go to next step

      NG: Functioning properly (Clear the memory.)

      Perform [Assist Map Clear] (Refer to WORK SUPPORT ).