Code No. U0141: ETACS CAN Timeout


caution
  • If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
  • Whenever the ECU is replaced, ensure that the CAN bus lines are normal.

OPERATION



DIAGNOSIS CODE SET CONDITION




  • The signal sent from the ETACS-ECU cannot be received for a certain period.

PROBABLE CAUSES



  • Malfunction of the CAN bus line
  • Malfunction of power supply circuit system (ETACS-ECU)
  • Malfunction of ECU (ETACS-ECU)
  • Malfunction of 4WD-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics.
Use M.U.T.-III to perform the CAN bus diagnosis.

Q. Is the check result normal?
Go to Step 2.
Repair the CAN bus lines. (Refer to GROUP 54C - Troubleshooting ).

STEP 2. M.U.T.-III diagnosis code.
Check the ETACS diagnosis code (Refer to GROUP 54A - Troubleshooting ).

Q. Is the diagnosis code set?
Perform the relevant troubleshooting.
Go to Step 3.

STEP 3. Check whether the diagnosis code is reset.

Q. Is diagnosis code No.U0141 set?
Replace the 4WD-ECU (Refer to ). Then go to Step 4.
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).

STEP 4. Check whether the diagnosis code is reset.

Q. Is diagnosis code No.U0141 set?
Return to Step 1.
This diagnosis is complete.