Code No. U119A: Chassis Number Mismatch

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.U1119A is set in AWC-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.

The AWC-ECU gains a chassis number (vehicle identification), which is stored in the engine-ECU, via the CAN bus lines.

This diagnosis code will be set when the engine-ECU sends an invalid chassis number.

DIAGNOSIS PROCEDURE

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

	Go to Step 2.

	Repair the CAN bus lines. (Refer to GROUP 54C - Troubleshooting). After repairing the CAN bus line, go to Step 2.

Check the engine diagnosis code. (Refer to GROUP 13B -Troubleshooting).

	Perform the relevant troubleshooting.

	Go to Step 3.

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

	Perform the relevant troubleshooting.

	Go to Step 4.

	Replace the AWC-ECU. (Refer to ). Then go to Step 5.

	Intermittent malfunction. (Refer to GROUP 00 - How to Cope with Intermittent Malfunction).

	Return to Step 1.

	This diagnosis is complete.