Code No.B2204 Coding data mismatch


caution
  • When diagnosis code No. B2204 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
  • Malfunction of WCM
  • Malfunction of ETACS-ECU

DIAGNOSIS PROCEDURE


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



Q. Is the check result normal?





STEP 2. M.U.T.-III other system diagnosis code



Q. Is the diagnosis code set?





STEP 3. Check whether the diagnosis code is reset.



(1)Turn the ignition switch from the LOCK (OFF) position to the ON position.
(2)Check if the diagnosis code is set.

Q. Is the diagnosis code set?