SFI SYSTEM (w/o EGR System), Diagnostic DTC:P0560

DTC Code DTC Name
P0560 System Voltage

DESCRIPTION

The battery supplies electricity to the ECM even when the power 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 stored ECM data 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.

WIRING DIAGRAM

A01NG67E05

INSPECTION PROCEDURE

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. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. 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 MAIN FUSE - ECM)


    1. Disconnect the ECM connector.

    2. Remove the EFI MAIN 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 MAIN fuse) - A76-15 (BATT) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      2 (EFI MAIN fuse) or A76-15 (BATT) - Body ground Always 10 kΩ or higher

    4. Reconnect the ECM connector.

    5. Reinstall the EFI MAIN fuse.


    NG

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

    OK

  2. INSPECT BATTERY


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

      OK
      Battery is not depleted.

    NG

    REPLACE BATTERY Click here

    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

    CHECK FOR INTERMITTENT PROBLEMS Click here