Code No.B1760: Variant coding not completed/B1761: VIN data not registered


COMMENTS ON TROUBLE SYMPTOM


If the variant code and the VIN data are not written when the ETACS-ECU is replaced, the ETACS-ECU sets diagnosis code No.B1760 or B1761.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE


Check whether the diagnosis code is reset.


(1)Use the M.U.T.-III to write the variant code and the VIN data. Refer to GROUP 00 - Precautions Before Service - How to Perform Variant Coding .
(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(3)On completion, check that the diagnosis code is not reset.

Q. Is the diagnosis code set?

Replace the ETACS-ECU. Then perform the variant coding and write the VIN data (Refer to GROUP 00, Precautions Before Service - How to Perform Variant Coding ).

The procedure is complete.