Code No.B2401 Keyless/KOS key ID not registered


caution
  • If the diagnosis code No. B2401 is set, be sure to diagnose the CAN bus line.
  • When replacing the ECU, always check that the communication circuit is normal.

DIAGNOSIS FUNCTION



JUDGMENT CRITERIA



PROBABLE CAUSES



  • The registration of a keyless operation key ID fails when no keyless operation key ID is registered.
  • Malfunction of the keyless operation key
  • Malfunction of KOS-ECU

DIAGNOSIS PROCEDURE


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