Code No.U119A: Chassis No. mismatch


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.
  • When the diagnosis code No.U119A is set in 4WD-ECU, the diagnosis code may also be set in ETACS-ECU. When the diagnosis code is set in ETACS-ECU, perform the diagnosis of the diagnosis code for ETACS-ECU first.

OPERATION



DIAGNOSIS CODE SET CONDITION




  • The chassis number received from ETACS-ECU is not correct.

PROBABLE CAUSES



  • Malfunction of the CAN bus line
  • Chassis number not written
  • ETACS-ECU malfunction
  • Malfunction of engine-ECU
  • Malfunction of 4WD-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

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

STEP 2. M.U.T.-III other system diagnosis code
Check the engine diagnosis code (Refer to GROUP 13A - Troubleshooting <4B1>, GROUP 13C -Troubleshooting <4J1>, GROUP 13D -Troubleshooting <4N1>).

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.U119A 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.U119A set?
Return to Step 1.
This diagnosis is complete.