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SFI SYSTEM, Diagnostic DTC:P0560

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DTC Code DTC Name
P0560 System Voltage
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DESCRIPTION

The battery supplies electricity to the ECM even when the engine 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
Tip:

If DTC P0560 is set, the ECM does not store other DTCs.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

Tip:

Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

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PROCEDURE


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    CHECK HARNESS AND CONNECTOR (EFI FUSE - ECM)


    1. A01CECWE01

      Disconnect the ECM connector.

    2. Remove the EFI fuse from the engine room 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 fuse) - A8-20 (BATT) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      2 (EFI fuse) or A8-20 (BATT) - Body ground Always 10 kΩ or higher

    4. Reconnect the ECM connector.

    5. Reinstall the EFI fuse.


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    INSPECT BATTERY


    1. Check the battery voltage.

      Battery voltage
      11 to 14 V

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    CHECK BATTERY TERMINAL


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

      OK
      Battery terminals are not loose or corroded.

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    REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI FUSE - ECM)

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    REPLACE BATTERY

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    REPAIR OR REPLACE BATTERY TERMINAL

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    CHECK FOR INTERMITTENT PROBLEMSClick here