DTC P0563 System Voltage High (4JJ3 with DPD)

Note

  • Jump starting or overcharging by the battery charger may cause this DTC to be set.

1. Engine control system check

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) Diagnostic system check-engine controls".

2. Vehicle maintenance check

1) Check if the battery charger has been recently connected to the battery. Is the battery charger connected to the battery?

Yes

=>Go to Repair verification.

No

=>Go to Ignition voltage check.

3. Ignition voltage check

1) Connect the scan tool.

2) Start the engine.

3) Observe the Ignition Voltage parameter on the scan tool. Is the Ignition Voltage parameter less than or equal to the specified value?

Value: 16.0 V

Yes

Go to Intermittent conditions of engine.

Refer to "202.Engine 15D.Symptom(4JJ3 with DPD) intermittent conditions of engine".

No

=>Go to Charging system inspection.

4. Charging system inspection

1) Inspect the charging system. Is the result normal?

Refer to "202.Engine 15C.Functional Inspection(4JJ3 with DPD) charging system check".

Yes

=>Go to ECM ground inspection.

No

Repair the charging system.

=>Go to Repair verification.

5. ECM ground inspection

1) Inspect the ECM ground section for corrosion or improper installation. Is the result normal?

Yes

=>Go to ECM harness connector inspection.

No

Repair the ground point as necessary.

=>Go to Repair verification.

6. ECM harness connector inspection

1) Inspect for poor connections at the ECM harness connector (pin 1 of C9). Is the connection status normal?

Refer to "RHD Engine Control (4JJ3 with DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "LHD Engine Control (4JJ3 with DPD)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Yes

=>Go to Repair verification.

No

Repair the connections as necessary.

=>Go to Repair verification.

7. Repair verification

1) Clear the DTC with a scan tool.

2) Turn OFF the ignition switch for 1 minute or more.

3) Start the engine.

4) Observe the Ignition Voltage parameter on the scan tool. Is the Ignition Voltage parameter less than or equal to the specified value?

Value: 16.0 V

Yes

Observe the DTC information with a scan tool.

No

=>Go to Charging system inspection.