Code No.B1A24 Key ID not registered


caution
  • When the diagnosis code No. B1A24 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



  • Malfunction of CAN bus line
  • Key ID not registered
  • Malfunction of KOS-ECU

DIAGNOSIS PROCEDURE


1.
2.