Code No.U1415 Coding not completed/Data fail


caution
  • If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to this diagnosis, always diagnose the CAN bus lines.
  • Before replacing the CAN box unit, be sure to check that the power supply circuit,earth circuit, and communication circuit are normal. (Check that the voltage is 10 V or more.)

TROUBLE JUDGEMENT
When the vehicle information data is not registered to the CAN box unit, the CAN box unit sets the diagnosis code No.U1415.

COMMENTS ON TROUBLE SYMPTOM
The can box unit, ETACS-ECU, or CAN bus line may have a problem.

PROBABLE CAUSES

  • Malfunctions of CAN box unit
  • Malfunction of the ETACS-ECU
  • Malfunction of CAN bus line wiring harness and connector

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 ).

STEP 2. M.U.T.-III other system diagnosis code
Check if diagnosis code is set to the ETACS-ECU.

Q. Is the diagnosis code set?
Diagnose the ETACS-ECU (Refer to ETACS - Troubleshooting ).
Go to Step 3.

STEP 3. Check whether the diagnosis code is reset.
Check again if the diagnosis code is set to the CAN box unit.
(1)Erase the diagnosis code.
(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(3)Check if diagnosis code is set.

Q. Is the diagnosis code set?
Replace the CAN box unit.
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).