DTC P0560 System Voltage
Description
While the ignition switch is off, battery voltage is supplied to terminal BATT of the ECM for storing DTCs and fuel injection feedback learning values.
Toyota fault code list DTC P0560
DTC No. | DTC Detection Condition | Trouble Area |
P0560 | Condition (a) or (b) continues: (a) Significant decrease in battery voltage (b) Open in back-up power source circuit (1 trip detection logic) |
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HINT:
If DTC P0560 appears, the ECM does not store other DTCs.
Wiring diagram

Inspection procedure
1.CHECK WIRE HARNESS (ECM - INTEGRATION RELAY) |
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Disconnect the A12 ECM connector.
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Remove the intelligent relay from the engine room No. 1 relay block.
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Measure the resistance of the wire harness side connectors.
Standard resistance:
Tester Connection Specified Condition A12-2 (BATT) - 1A-1 Below 1 ? A12-2 (BATT) or 1A-1 - Body ground 10 k? or higher -
Reconnect the ECM connector.
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Reinstall the integration relay.
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OK | |
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