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 set 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 set, the ECM does not store other DTCs or the data stored in the ECM may have been cleared.

CONFIRMATION DRIVING PATTERN


  1. Turn the ignition switch to ON and wait for 5 seconds or more.

WIRING DIAGRAM

A005KWZE04

CAUTION / NOTICE / HINT

Note

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

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, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (EFI NO. 3 FUSE - ECM)


    1. Disconnect the ECM connector.

    2. Remove the EFI NO. 3 fuse from the engine room main relay block.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      2 (EFI NO. 3 fuse) - A58-1 (BATT) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      2 (EFI NO. 3 fuse) or A58-1 (BATT) - Body ground Always 10 kΩ or higher

    4. Reconnect the ECM connector.

    5. Reinstall the EFI NO. 3 fuse.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI NO. 3 FUSE - ECM)

    OK

  2. INSPECT BATTERY


    1. Check that the battery is not depleted.

      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


    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 turn the tester off.

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

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

    8. Read the 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