DTC    P0560    System Voltage

для подготовки Нажмите здесь


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)
  1. Open in back-up power source circuit
  2. ECM

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


WIRING DIAGRAM


A122745E06


INSPECTION PROCEDURE

УКАЗАНИЕ:
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.

1.CHECK FUSE (EFI MAIN FUSE)
A153149E01

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

  1. Measure the resistance of the fuse.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    EFI MAIN fuse
    		Always
    		Below 1 Ω



NG
CHECK FOR SHORT IN ALL HARNESSES AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE
OK


2.INSPECT ECM (BATT VOLTAGE)


    A124678E34

  1. Measure the voltage according to the value(s) in the table below.

    Standard voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A14-7 (BATT) - E3-1 (E1)
    		Engine switch on (IG)
    		11 to 14 V



OK
REPLACE ECM (Нажмите здесь)
NG


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


    A150278E01

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

    1. Remove the EFI MAIN fuse from the engine room relay block.

    2. Disconnect the A14 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
      EFI MAIN fuse (2) - A14-7 (BATT)
      		Always
      		Below 1 Ω

      Standard resistance (Check for short):
      Tester Connection
      		Condition
      		Specified Condition
      EFI MAIN fuse (2) or A14-7 (BATT) - Body ground
      		Always
      		10 kΩ or higher

  1. Check the harness and the connector between the EFI MAIN fuse and battery.

    1. Remove the EFI MAIN fuse from the engine room relay block.

    2. Disconnect the positive battery terminal.

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

      Standard resistance (Check for open):
      Tester Connection
      		Condition
      		Specified Condition
      Battery positive terminal - EFI MAIN fuse (1)
      		Always
      		Below 1 Ω

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



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.INSPECT BATTERY

ПРИМЕЧАНИЕ:
When disconnecting and reconnecting the cable from the negative (-) battery terminal, the cowl top ventilator louver must also be removed and installed. Be sure to install the cowl top ventilator louver properly. If it is not installed properly, water may enter the engine room and cause malfunctions.

  1. Check that the battery is not depleted (see page Нажмите здесь).

    OK:
    Battery is not depleted.



NG
REPLACE BATTERY
OK

CHECK AND REPLACE ENGINE ROOM NO. 2 RELAY BLOCK