DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT FUSE (EFI MAIN)
CHECK HARNESS AND CONNECTOR (ENGINE ROOM RELAY BLOCK - ECM, BATTERY)
INSPECT BATTERY
CHECK BATTERY TERMINAL
CHECK WHETHER DTC OUTPUT RECURS
REPLACE ECM
CHECK FOR SHORTS IN ALL HARNESSES AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE
REPAIR OR REPLACE HARNESS OR CONNECTOR
REPLACE BATTERY
REPAIR OR REPLACE BATTERY TERMINAL
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
DTC P0560 System Voltage
DESCRIPTION
The battery supplies electricity to the ECM even when the ignition 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 ECM 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.
P0560| DTC Detection Drive Pattern | DTC Detection Condition | Trouble Area |
| Ignition switch ON for 3 seconds | The voltage at terminal BATT drops excessively for 3 seconds and part of the stored values in the ECU are initialized (1 trip detection logic). | Open in back up power source circuit (to BATT terminal)
Battery
Battery terminals
EFI MAIN fuse
ECM
|
Related Data List| DTC No. | Data List |
| P0560 | Battery Voltage |
- If DTC P0560 is stored, the ECM does not store other DTCs or the data stored in the ECM is partly erased.
WIRING DIAGRAM
INSPECTION PROCEDURE
- After replacing the ECM, the new ECM needs registration () and initialization ().
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.
When the ignition switch is ON, even though +B voltage is present, when the voltage at terminal BATT (power supply for maintaining memorized values in the ECM) drops excessively, a DTC is stored.
| 1.INSPECT FUSE (EFI MAIN) |
Remove the EFI MAIN fuse from the engine room relay block.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| EFI MAIN Fuse | Always | Below 1 Ω |
| 2.CHECK HARNESS AND CONNECTOR (ENGINE ROOM RELAY BLOCK - ECM, BATTERY) |
Check the harness and the connector between the EFI MAIN fuse and ECM.
Remove the EFI MAIN fuse from the engine room relay block.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance (Check for Open):
for LHD| Tester Connection | Condition | Specified Condition |
| EFI MAIN fuse (2) - A38-20 (BATT) | Always | Below 1 Ω |
for RHD| Tester Connection | Condition | Specified Condition |
| EFI MAIN fuse (2) - A52-20 (BATT) | Always | Below 1 Ω |
- Standard Resistance (Check for Short):
for LHD| Tester Connection | Condition | Specified Condition |
| EFI MAIN fuse (2) or A38-20 (BATT) - Body ground | Always | 10 kΩ or higher |
for RHD| Tester Connection | Condition | Specified Condition |
| EFI MAIN fuse (2) or A52-20 (BATT) - Body ground | Always | 10 kΩ or higher |
Check the harness and the connector between the EFI MAIN fuse and battery.
Remove the EFI MAIN fuse from the engine room relay block.
Disconnect the cable from the positive (+) battery terminal.
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 |
Check that the battery is not depleted.
- OK:
- Battery is not depleted.
Check that the battery terminals are not loose or corroded.
- OK:
- Battery terminals are not loose or corroded.
| 5.CHECK WHETHER DTC OUTPUT RECURS |
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON and turn the tester on.
Turn the ignition switch off.
Turn the ignition switch to ON for 3 seconds.
Enter the following menus: Powertrain / Engine / DTC.
Read the DTCs.
Result| Result | Proceed to |
| P0560 is output | A |
| No DTC is output | B |
| 7.CHECK FOR SHORTS IN ALL HARNESSES AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE |
| 8.REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 10.REPAIR OR REPLACE BATTERY TERMINAL |
| 11.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED |
Connect the intelligent tester to the DLC3.
Turn the ignition switch off.
Turn the ignition switch to ON for 3 seconds.
Enter the following menus: Powertrain / Engine / DTC.
Confirm that the DTC is not output again.
