Code No. P0563: Battery voltage (high voltage)


caution
  • Even when the vehicle is normal, a diagnosis code might be set depending on the service status. Therefore, check the interview information before the diagnosis.

DIAGNOSIS CODE SET CONDITIONS



PROBABLE CAUSES



  • 24-V battery incorrect connection by user
  • Malfunction of the DC-DC converter
  • Malfunction of the MCU

DIAGNOSIS PROCEDURE

STEP 1. Use M.U.T.-III to confirm a diagnosis code of other systems.
Check if the diagnosis code is set to the EV-ECU.

Q. Is the diagnosis code set?
Carry out troubleshooting for the EV-ECU. (Refer to .) Then go to Step 2.
Go to Step 2.

STEP 2. M.U.T.-III actuator test and service data
Perform the actuator test of EV-ECU (refer to ) and check the service data (refer to ) of the EV control relay.
Actuator test
  • Item No. 2 : 12 V DC DC shutdown
Data list
  • Item No. 83 : Control power supply voltage
OK: The voltage value varies between 3.7 V and 3.9 V / 3.3 V and 3.5 V depending on activation / deactivation of the DC-DC converter.

Q. Is the check result normal?
Go to Step 3.
Carry out the troubleshooting for the EV-ECU diagnosis code P0A09. (Refer to .)

STEP 3. Diagnosis code recheck
Check again if the diagnosis code is set to the MCU.
(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?
Replace the MCU. (Refer to .) Then go to Step 4.
The diagnosis is complete.

STEP 4. Diagnosis code recheck
Check again if the diagnosis code is set to the MCU.
(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.