ECD SYSTEM (w/o DPF), Diagnostic DTC:P0560

DTC Code DTC Name
P0560 System Voltage

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 falls below a minimum level, the ECM memory is cleared and the ECM determines that there is a malfunction in the power supply circuit. When the engine is next started, the ECM illuminates the MIL and stores the DTC.

P0560
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 3 seconds The voltage at terminal BATT drops excessively for 3 seconds and part of the stored values in the ECM are initialized (1 trip detection logic).
  • Open in backup power source circuit (to BATT terminal)

  • Battery

  • Battery terminals

  • EFI fuse

  • ECM

Related Data List
DTC No. Data List
P0560 Battery Voltage*

*: This is not the voltage of the BATT, it is the power supply voltage for the ECM.

Tech Tips

If DTC P0560 is stored, the ECM does not store other DTCs or the data stored in the ECM is partly cleared.

WIRING DIAGRAM

A00O5XWE01

INSPECTION PROCEDURE

Note


  • Inspect the fuses of circuits related to this system before performing the following inspection procedure.

  • After replacing the ECM, the new ECM needs registration Click here and initialization Click here.

Tech Tips


  • 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.

  • When the ignition switch is turned to ON, even though +B voltage is present, when the voltage at terminal BATT (power supply for maintaining memorized values in the ECM) drops excessively, this DTC is stored.

PROCEDURE


  1. CHECK ECM TERMINAL VOLTAGE (BATT)


    1. A00O7X2E22
      Text in Illustration
      *a

      Component with harness connected

      (ECM)

      Disconnect the ECM connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      G57-23 (BATT) - Body ground Always 11 to 14 V
    3. Reconnect the ECM connector.


    NG
    OK
  2. INSPECT BATTERY


    1. Check that the battery is not depleted.

      OK
      Battery is not depleted.

    NG
    OK
  3. CHECK BATTERY TERMINAL


    1. Check that the battery terminals are not loose or corroded.

      OK
      Battery terminals are not loose or corroded.

    NG
    OK
  4. CHECK WHETHER DTC OUTPUT RECURS


    1. Connect the intelligent tester to the DLC3.

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

    3. Clear the DTCs Click here.

    4. Turn the ignition switch off.

    5. Turn the ignition switch to ON for 3 seconds.

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

    7. Read the DTCs.

      Result
      Result Proceed to
      P0560 is output A
      No DTC is output B

    B
    A
  5. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT
  6. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.


    NEXT
  7. RECHARGE OR REPLACE BATTERY


    1. Recharge or replace the battery.


    NEXT
  8. REPAIR OR REPLACE BATTERY TERMINAL


    1. Repair or replace the battery terminal.


    NEXT
  9. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Clear the DTCs Click here.

    3. Turn the ignition switch off for 30 seconds or more.

    4. Turn the ignition switch to ON for 3 seconds.

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

    6. Confirm that the DTC is not output again.


    NEXT