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

DTC Code DTC Name
P0560 System Voltage

DESCRIPTION

The battery supplies electricity to the ECM even when the ignition switch is in the OFF position. 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 illuminates the MIL and sets the DTC.

DTC No. DTC Detection Condition Trouble Area
P0560

Condition (a) or (b) continues:

(a) Significant decrease in battery voltage

(b) Open in back-up power source circuit

(1 trip detection logic)

  • Open in back-up power source circuit

  • EFI fuse

  • Battery

  • ECM

Tech Tips

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

WIRING DIAGRAM

A01E1GVE02

INSPECTION PROCEDURE

Note

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.

PROCEDURE


  1. CHECK FUSE (EFI FUSE)


    1. A01E1UOE01

      Remove the EFI fuse from the engine room junction block.

    2. Measure the resistance of the EFI fuse.

      Standard resistance
      Below 1 Ω

    NG

    CHECK FOR SHORTS IN ALL HARNESSES AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE

    OK

  2. INSPECT ECM (BATT VOLTAGE)


    1. A01DXHUE16

      Measure the voltage of the E6 and E7 ECM connectors.

      Standard voltage
      Tester Connection Specified condition
      BATT (E6-2) - E1 (E7-7) 11 to 14 V

    OK

    REPLACE ECM Click here

    NG

  3. CHECK HARNESS AND CONNECTOR (ECM - EFI FUSE, EFI FUSE - BATTERY)


    1. A01E2ZAE01

      Check the harness and the connector between the EFI fuse and ECM.


      1. Disconnect the E6 ECM connector.

      2. Remove the EFI fuse from the engine room junction block.

      3. Measure the resistance.

        Standard resistance (Check for open)
        Tester Connection Specified Condition
        BATT (E6-2) - EFI fuse (2) Below 1 Ω
        Standard resistance (Check for short)
        Tester Connection Specified Condition
        BATT (E6-2) or EFI fuse (2) - Body ground 10 kΩ or higher

    2. Check the harness and the connector between the EFI fuse and battery.


      1. Remove the EFI fuse from the engine room junction block.

      2. Disconnect the positive battery terminal.

      3. Measure the resistance.

        Standard resistance (Check for open)
        Tester Connection Specified Condition
        Battery positive terminal - EFI fuse (1) Below 1 Ω
        Standard resistance (Check for short)
        Tester Connection Specified Condition
        Battery positive terminal or EFI fuse (1) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT BATTERY


    1. Check that the battery is not depleted.

      OK
      Battery is not depleted

    NG

    REPLACE BATTERY

    OK

    CHECK AND REPLACE ENGINE ROOM RELAY BLOCK