Code No.B1761: Chassis No. not recorded


caution Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.

TROUBLE JUDGMENT


If the chassis No. data is not written when the ETACS-ECU is replaced, the ETACS-ECU sets diagnosis code No.B1761.

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 ). Repair the CAN bus line.

STEP 2. Write the Chassis No.


Write the chassis No. data to the ETACS-ECU [Refer to GROUP 00 - How to perform chassis number (Chassis No.) writing ].

Q. Is diagnosis code No.B1761 set?

Replace the ETACS-ECU and register the ID codes (Refer to ).

The procedure is complete.