Code No.U0197 Hands-free cellular phone system CAN timeout



caution
  • If the diagnosis code No. U0197 is set , be sure to diagnose the CAN bus line.
  • When replacing the ECU, always check that the communication circuit is normal

DIAGNOSTIC FUNCTION




PROBABLE CAUSES



  • Malfunction of the CAN bus
  • Malfunctions of hands free module
  • Malfunction of the 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. M.U.T.-III other system diagnosis code



Q. Is the diagnosis code set?





STEP 4. Check whether the diagnosis code is reset.



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

Q. Is the diagnosis code set?