SFI SYSTEM, Diagnostic DTC:P0560

DTC Code DTC Name
P0560 System Voltage

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 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 sets 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

  • ECM

Tech Tips

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

WIRING DIAGRAM

A01600NE15

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 FUSE (EFI FUSE)


    1. A015YXDE13

      Remove the EFI fuse from the engine room No. 2 relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      EFI fuse Always Below 1 Ω

    3. Reinstall the EFI fuse.


    NG

    REPLACE FUSE (EFI FUSE)

    OK

  2. INSPECT INTEGRATION NO.1 RELAY


    1. A015ZUHE01

      Remove the integration relay from engine room No. 2 relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2A-5 - 2C-1 Always Below 1 Ω

    3. Reinstall the integration relay.


    NG

    REPLACE INTEGRATION NO.1 RELAY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (ECM - INTEGRATION RELAY)


    1. A015Z8AE01

      Disconnect the cable from the battery negative terminal and positive terminal.

    2. Disconnect the ECM connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      A5-7 (BATT) - Battery positive terminal Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A5-7 (BATT) or Battery positive terminal - Body ground Always 10 kΩ or higher

    4. Reconnect the ECM connector.

    5. Reconnect the cable to the battery positive terminal and negative terminal.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - INTEGRATION RELAY)

    OK

  4. INSPECT BATTERY


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

      OK
      Battery is not depleted.

    NG

    REPLACE BATTERY

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here