Code No. P0AED: IGBT temperature sensor error (MCU)


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.

OPERATION



DIAGNOSIS CODE SET CONDITIONS



  • When the diagnosis code No. P0AEF, No. P0AF0, No. P0AF4, or No. P0AF5 is set to the MCU, the diagnosis code No. P0AED will be set.

PROBABLE CAUSES



  • Malfunction of the MCU IGBT (inverter) system

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnosis
Use the M.U.T.-III to diagnose the CAN bus lines.

Q. Is the check result normal?
Go to Step 3.
Repair the CAN bus line. (Refer to GROUP 54C - Troubleshooting .) Then go to Step 2.

STEP 2. Diagnosis code recheck after resetting CAN bus lines
Check again if the diagnosis code No. P0AED is set to the EV-ECU.
(1)Erase the stored diagnosis code.
(2)Set the electric motor switch from the LOCK (OFF) position to the ON position.
(3)Check if the diagnosis code is set.

Q. Is the diagnosis code set?
Go to Step 3.
This diagnosis is complete.

STEP 3. Use M.U.T.-III to confirm a diagnosis code of other systems.
Check if one or some of the diagnosis codes are set to MCU from No. P0AEF, P0AF0, P0AF4, or P0AF5.

Q. Is the diagnosis code set?
Carry out troubleshooting for diagnosis code No. P0AEF, No. P0AF0, No. P0AF4, or No.P0AF5. (Refer to .) Then go to Step 4.
Go to Step 4.

STEP 4. Diagnosis code recheck
Check again if the diagnosis code is set to the EV-ECU.
(1)Erase the stored diagnosis code.
(2)Set the electric motor switch from the LOCK (OFF) position to the ON position.
(3)Check if the diagnosis code is set.

Q. Is the diagnosis code set?
Return to Step 1.
The diagnosis is complete.