Code No. U1415 Variant coding not implemented



caution
  • 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 (Refer to GROUP 54C, Trouble code diagnosis ).
  • When the diagnosis code No. U1415 is set in ASC-ECU, the diagnosis code may also be set in ETACS-ECU. When the diagnosis code is set in ETACS-ECU, carry out the diagnosis of the diagnosis code for ETACS-ECU first.

OPERATION


ASC-ECU receives the vehicle information stored in the ETACS-ECU via CAN bus lines.

DIAGNOSIS CODE SET CONDITIONS


This diagnosis code is set when the variant coding for ETACS-ECU has not been implemented.

PROBABLE CAUSES


Variant coding for ETACS-ECU has not been implemented.

DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III CAN bus diagnosis


Use M.U.T.-III to diagnose the CAN bus lines.

Q. Is the check result normal?

Go to Step 2.
Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting ). On completion, go to Step 4.

STEP 2. M.U.T.-III other system diagnosis code


Use M.U.T.-III to check that the diagnosis code No. B222C is set in the ETACS-ECU.

Q. Is the diagnosis code set?

Troubleshoot the relevant diagnosis code, and then go to Step 4.
Go to Step 3.

STEP 3. Check whether the diagnosis code is reset.


Q. Is the diagnosis code No. U1415 set?

Replace the ASC-ECU. Go to Step 4.
If the trouble symptom is resolved, an intermittent malfunction such as poorly engaged connector(s) or wiring harness is suspected (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).

STEP 4. Check whether the diagnosis code is reset.


Q. Is the diagnosis code No. U1415 set?

Return to Step 1.
This diagnosis is complete.