SFI SYSTEM, 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 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 will illuminate the MIL and store the DTC.

DTC No. DTC Detection Condition Trouble Area
P0560

Open in ECM back-up power source circuit

(1 trip detection logic)

  • Open in back-up power source circuit

  • Battery

  • Battery terminals

  • ECM

Tech Tips

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

MONITOR STRATEGY

Required Sensors/Components ECM
Frequency of Operation Continuous

TYPICAL MALFUNCTION THRESHOLDS

Battery voltage Below 3.5 V

CONFIRMATION DRIVING PATTERN


  1. Connect the intelligent tester to the DLC3.

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

  3. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation)

  4. Turn the ignition switch off and wait for at least 30 seconds.

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

  6. Wait 5 seconds or more.

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

  8. Read pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  9. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

  10. Input the DTC: P0560.

  11. Check the DTC judgment result.

    Tester Display Description
    NORMAL

    • DTC judgment completed

    • System normal
    ABNORMAL

    • DTC judgment completed

    • System abnormal
    INCOMPLETE

    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions
    N/A

    • Unable to perform DTC judgment

    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and the DTC judgment result again.

WIRING DIAGRAM

A01VL4XE01
A01VL4XE02

CAUTION / NOTICE / HINT

Note


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

  • After turning ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work Click here.

Tech Tips

Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions 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, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (ECM - BATTERY)


    1. Disconnect the cable from the negative (-) battery terminal.

    2. Disconnect the cable from the positive (+) battery terminal.

    3. Disconnect the ECM connector.

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A58-1 (BATT) - Battery positive (+) terminal Always Below 1 Ω
      A58-1 (BATT) or Battery positive (+) terminal - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT BATTERY


    1. Check that the battery is not depleted Click here.

      OK
      Battery is not depleted.

    NG

    REPLACE BATTERY

    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

    REPAIR OR REPLACE BATTERY TERMINAL

    OK

  4. CHECK WHETHER DTC OUTPUT RECURS (DTC P0560)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Clear the DTCs Click here.

    5. Turn the ignition switch off and wait for at least 30 seconds.

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

    7. Wait 5 seconds or more.

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

    9. Read DTCs.

      Result
      Result Proceed to
      DTC P0560 is output A
      DTC is not output B

    A

    REPLACE ECM Click here

    B

    CHECK FOR INTERMITTENT PROBLEMS Click here