DTC    P0563    System Voltage High

for Preparation Click here


DESCRIPTION

The battery supplies electricity to the ECM even when the ignition switch is off. This power allows the ECM to store data such as DTC history, freeze frame data and fuel trim values. If the battery voltage is 17 V or more, the ECM determines that there is a malfunction in the power supply circuit. Then the ECM illuminates the MIL and stores the DTC.

P0563 
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Ignition switch ON for 20 seconds or more
Battery voltage is 17 V or more.
(1 trip detection logic)
  1. Generator
  2. Battery (If 24 V battery is installed)
  3. ECM

Related Data List 
DTC No.
Data List
P0563
  1. Battery Voltage

HINT:
If DTC P0563 is stored, the ECM does not store other DTCs or the data stored in the ECM is partly cleared.


INSPECTION PROCEDURE

NOTICE:
When replacing the ECM, the ECM needs Registration and Initialization (Click here).

HINT:
  1. When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the intelligent tester. Then after installing the new ECM, perform all of the initializations/registrations for the "Learning Values Write" function by following the instructions shown on the tester display.
  2. Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

1.CHECK CHARGING SYSTEM

  1. Check and repair the charging system (Click here).


NEXT


2.INSPECT BATTERY

  1. Check that the correct battery is installed.

    OK:
    Correct battery is installed.

    NOTICE:
    If the 24 V battery is installed, the DTC P0563 will be stored.


NEXT


3.CHECK WHETHER DTC OUTPUT RECURS

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

  1. Clear the DTCs (Click here).

  1. Turn the ignition switch off and wait for 30 seconds or more.

  1. Turn the ignition switch to ON and wait for 20 seconds or more.

  1. Enter the following menus: Powertrain / Engine and ECT / DTC.

  1. Read the DTCs.
    Result 
    Result
    		Proceed to
    No DTC output
    		A
    DTC P0563
    		B



B
Go to step 4
A

END 

4.REPLACE ECM

  1. Replace the ECM (Click here).


NEXT


5.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

  1. Clear the DTCs (Click here).

  1. Turn the ignition switch off and wait for 30 seconds or more.

  1. Turn the ignition switch to ON and wait for 20 seconds or more.

  1. Enter the following menus: Powertrain / Engine and ECT / DTC.

  1. Confirm that the DTC is not output again.


NEXT

END