Code No. U0136: AWC-ECU CAN time-out


caution
  • If diagnosis code No.U0182 is set in the ETACS-ECU, always diagnose the CAN main bus line.
  • Before replacing ECU, ensure that the communication circuit is normal.

DIAGNOSTIC FUNCTION



JUDGEMENT CRITERIA




  • No abnormality is present to the network.
  • Ignition switch is in the ON position.
  • No abnormality is present to the power supply fuse (IOD fuse), or the odometer value is at 80.5 km or more.
  • ETACS-ECU system voltage is at 10 to 16 V.

PROBABLE CAUSES



  • Malfunction of AWC-ECU
  • Malfunction of ETACS-ECU
  • Malfunction of the CAN bus

DIAGNOSIS PROCEDURE


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



Q. Is the check result normal?





STEP 2. Check the M.U.T.-III Diagnosis code for other systems



Q. Is the diagnosis code set?





STEP 3. Check the M.U.T.-III Diagnosis code for other systems



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?





STEP 5. 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?