Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - 3UR-FE ENGINE CONTROL

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT BATTERY

CHECK BATTERY TERMINAL

INSPECT ECM (BATT VOLTAGE)

CHECK WHETHER DTC OUTPUT RECURS

DTC 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.

DTC CodeDTC Detection ConditionTrouble Area
P0560An open in the ECM back up power source circuit (1 trip detection logic).
Open in back up power source circuit
Battery
Battery terminals
EFI MAIN fuse
ECM
  • HINT:
  • If DTC P0560 is stored, the ECM does not store other DTCs or the data stored in the ECM is partly cleared.

WIRING DIAGRAM

Dtc P0560 System Voltage. 3UR-FE ENGINE CONTROL. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

INSPECTION PROCEDURE

  • NOTICE:
  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.
  • HINT:
  • 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.INSPECT BATTERY

Check that the battery is not depleted ().

  • OK:
  • Battery is not depleted.
NG
REPLACE BATTERY
OK
2.CHECK BATTERY TERMINAL

Check that the battery terminals are not loose or corroded.

  • OK:
  • Battery terminals are not loose or corroded.
NG
REPAIR BATTERY TERMINAL
OK
3.INSPECT ECM (BATT VOLTAGE)
Dtc P0560 System Voltage. 3UR-FE ENGINE CONTROL. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Disconnect the A38 ECM connector.

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

  • Standard Voltage:
  • Tester ConnectionConditionSpecified Condition
    A38-1 (BATT) - Body groundAlways11 to 14 V
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
4.CHECK WHETHER DTC OUTPUT RECURS

Connect the intelligent tester to the DLC3.

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

Clear DTCs ().

Turn the engine switch off and turn the tester off.

Start the engine and turn the tester on.

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

Read DTCs.

Result
ResultProceed to
P0560 is outputA
No DTC is outputB
B
CHECK FOR INTERMITTENT PROBLEMS ()
A
REPLACE ECM ()
3UR-FE ENGINE CONTROL
Land Cruiser URJ200 URJ202 GRJ200 VDJ200
SFI SYSTEM