SFI SYSTEM(w/ EGR 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 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 illuminates the MIL and stores the DTC.

Tip:

If DTC P0560 is stored, the ECM does not store other DTCs and the data stored in the ECM is partly cleared.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Memory

P0560

System Voltage

Open in the ECM backup power source circuit (1 trip detection logic).

  • Open in backup power source circuit

  • Battery

  • Battery terminals

  • EFI fuse

  • ECM

Comes on

DTC stored

MONITOR STRATEGY

Required Sensors/Components (Main)

ECM

Frequency of Operation

Continuous

TYPICAL MALFUNCTION THRESHOLDS

ECM power source

Below 3.5 V

Stand-by RAM

Initialized

CONFIRMATION DRIVING PATTERN

  1. Turn the engine switch on (IG) and wait for 5 seconds or more.

WIRING DIAGRAM

A227108E07

CAUTION / NOTICE / HINT

Note:

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

Tip:

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 (ECM - BATTERY)

    1. Disconnect the ECM connector.

    2. Disconnect the cable from the positive (+) battery terminal.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G44-24 (BATT) - Battery positive (+) terminal

      Always

      Below 1 Ω

      G44-24 (BATT) or Battery positive (+) terminal - Body ground

      Always

      10 kΩ or higher

      Result

      Result

      OK

      NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT BATTERY

    1. Check that the battery is not depleted.

      Click here

      OK

      Battery is not depleted.

      Result

      Result

      OK

      NG
    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.

      Result

      Result

      OK

      NG
    NG

    REPAIR BATTERY TERMINAL

    OK

  4. CHECK WHETHER DTC OUTPUT RECURS

    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the tester on.

    4. Clear DTCs.

      Click here

      Powertrain > Engine and ECT > Clear DTCs

    5. Turn the engine switch off.

    6. Turn the engine switch on (IG) and turn the tester on.

    7. Wait 5 seconds or more.

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

    9. Read DTCs.

      Powertrain > Engine and ECT > Trouble Codes

      Result

      Result

      Proceed to

      P0560 is output

      A

      No DTC is output

      B
    A

    REPLACE ECM

    Click here

    B

    CHECK FOR INTERMITTENT PROBLEMS

    Click here