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DTC U119A: Chassis No. Mismatch
 
 
caution
  • If there is any problem in the CAN bus lines, an incorrect DTC 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 DTC No.U119A stored in AWC-ECU, the DTC may also be stored in ETACS-ECU. When the DTC is stored in ETACS-ECU, perform the diagnosis of the DTC for ETACS-ECU first.
 
 
OPERATION
AWC-ECU receives the chassis number stored in ETACS-ECU via CAN bus lines.
 
 
DTC SET CONDITION
This DTC is stored when the abnormality below is detected:
  • 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 control module
  • Malfunction of AWC-ECU
 
 
DIAGNOSTIC PROCEDURE
STEP 1. Scan tool (M.U.T.-III) CAN bus diagnostics.
Use scan tool (M.U.T.-III) to perform the CAN bus diagnosis.
Is the check result normal?
Go to Step 2.
Repair the CAN bus line (Refer to GROUP 54C - Diagnosis, Can Bus Diagnostics Table ).
 
STEP 2. Scan tool (M.U.T.-III) other system DTC
Check the engine DTC (Refer to GROUP 13A - Diagnosis, Diagnostic Trouble Code Chart ).
Is the DTC stored?
Perform the relevant troubleshooting.
Go to Step 3.
 
STEP 3. Check whether the DTC is stored again.
Is DTC No.U119A stored?
Replace the AWC-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 DTC is stored again.
Is DTC No.U119A stored?
Return to Step 1.
This diagnosis is complete.