Code No.U119A: Chassis No. mismatch


caution
  • If there is any problem in the CAN bus lines, an incorrect diagnosis code may be stored. 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 stored in 4WD-ECU, the diagnosis code may also be stored in ETACS-ECU. When the diagnosis code is stored in ETACS-ECU, perform the diagnosis of the diagnosis code for ETACS-ECU first.

OPERATION


4WD-ECU receives the chassis number stored in ETACS-ECU via CAN bus lines.

DIAGNOSIS CODE SET CONDITION


This diagnosis code will be stored when the ETACS-ECU sends an invalid VIN.

PROBABLE CAUSES



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 ETACS-ECU diagnosis code (Refer to GROUP 54A - Troubleshooting .)

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

STEP 3. Check whether the diagnosis code is stored again.

Q. Is diagnosis code No.U119A stored?
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 stored again.

Q. Is diagnosis code No.U119A stored?
Return to Step 1.
This diagnosis is complete.