Code No.B1A24 Transponder 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 ETACS-ECU

DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III CAN bus diagnostics



Q. Is the check result normal?





STEP 2. Register the key ID and recheck the diagnosis code.



(1)Register the ignition key which is used when detect the diagnosis code.
(2)Remove the ignition key from the cylinder and then insert the ignition key again.
(3)After 2 or 3 seconds later from inserting the key, then turn the ignition ON.
(4)Check if the diagnosis code is set?

Q. Is the diagnosis code set?