Code No.U0230 POWER GATE CAN timeout



caution
  • If the diagnosis code No. U230 is set, be sure to diagnose the CAN bus line.
  • Before replacing the ECU or combination meter, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.

DIAGNOSTIC FUNCTION


If the signal from electric tailgate control unit cannot be received, the combination meter sets the diagnosis code No. U0230.

JUDGEMENT CRITERIA


With the ignition switch is at ON position, the diagnosis code No. U1190 is not stored and the diagnosis code No. U1195 is not stored, if the communication with electric tailgate control unit cannot be established for 2500 ms or more, the combination meter determines that a problem has occurred.

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 and go to Step 6.

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


Check if diagnosis code is set to the electric tailgate control unit.

Q. Is the diagnosis code set?

Troubleshoot the electric tailgate control unit. Refer to .

Go to Step 3.

STEP 3. M.U.T.-III other system diagnosis code


Check if a diagnosis code, which relates to CAN communication-linked systems below, is set.

Q. Is the diagnosis code set?

Go to Step 4.

Go to Step 5.

STEP 4. Check whether the diagnosis code is reset.


Recheck if the diagnosis code is set.
(1)Erase the diagnosis code.
(2)Turn the ignition switch to "ON" position.
(3)On completion, check that the diagnosis code is not reset.

Q. Is the diagnosis code set?

Replace electric tailgate control unit and then go to Step 6.

A poor connection, open circuit or other intermittent malfunction is present in the CAN bus lines between the electric tailgate control unit and the combination meter (Refer to GROUP 00 - How to use troubleshooting/Inspection Service Points ).

STEP 5. Check whether the diagnosis code is reset.


Recheck if the diagnosis code is set.
(1)Erase the diagnosis code.
(2)Turn the ignition switch to "ON" position.
(3)On completion, check that the diagnosis code is not reset.

Q. Is the diagnosis code set?

Replace combination meter and then go to Step 6.

A poor connection, open circuit or other intermittent malfunction is present in the CAN bus lines between the electric tailgate control unit and the combination meter (Refer to GROUP 00 - How to use troubleshooting/Inspection Service Points ).

STEP 6. Check whether the diagnosis code is reset.


Recheck if the diagnosis code is set.
(1)Erase the diagnosis code.
(2)Turn the ignition switch to "ON" position.
(3)On completion, check that the diagnosis code is not reset.

Q. Is the diagnosis code set?

Go to Step 1.

The procedure is complete.