Pinpoint Test E: DTC P0563

High-Voltage Converter/Inverter

Pinpoint Tests

Pinpoint Test E: DTC P0563

Refer to Wiring Diagram Set 12 (Escape/Mariner, Escape Hybrid/Mariner Hybrid), Charging System for schematic and connector information. Diagrams By Number

Normal Operation

The PCM monitors the 12-volt battery system voltage through the Smart Junction Box (SJB) and will set a DTC if the system voltage rises above a set threshold.

- DTC P0563 (System Voltage High) - If the PCM detects a voltage from the charging system higher than 15.2 volts with vehicle speed above 8 km/h (5 mph), this DTC will be set.

This pinpoint test is intended to diagnose the following:
- 12-volt battery jump started or incorrectly charged
- Customer-installed accessory
- DC/DC converter


PINPOINT TEST E: DTC P0563

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E1 CHECK VOLTAGE AT THE DC/DC CONVERTER

- START the vehicle (Ready Indicator Light ON).
- Turn off the headlamps, blower and any other accessories.
- Measure the voltage of the battery.





- Is the voltage less than 16 volts?

Yes
GO to E2.

No
GO to E3.

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E2 TEST BATTERY CONDITION

- Ignition OFF.
- Carry out the battery condition test. Pinpoint Tests Refer to Battery, Mounting and Cables Testing and Inspection.

- Did the battery pass the condition test?

Yes
GO to E4.

No
DTC P0563 was most likely set due to the 12-volt battery being recently jump started or incorrectly charged using a battery charger. INSTALL a new battery. CLEAR the DTC. REPEAT the self-tests. TEST the system for normal operation. If DTC P0563 is still present, GO to E3.

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E3 INSPECT VEHICLE ACCESSORIES

- Ignition OFF.
- Inspect the vehicle and disable any customer installed accessories.
- START the vehicle (Ready Indicator Light ON).
- Measure the voltage of the battery.





- Is the voltage less than 16 volts?

Yes
COMMUNICATE the accessory concern to the customer. CLEAR the DTC. REPEAT the self-tests. TEST the system for normal operation.

No
GO to E4.

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E4 CLEAR DTCs AND CARRY OUT SELF-TEST OF THE PCM

- Ignition ON.
- Connect the scan tool.
- Using the scan tool, clear the PCM DTCs.
- Enter the following diagnostic mode on the scan tool: Self Test - PCM.
- Is DTC P0563 reported in the PCM?

Yes
INSTALL a new DC/DC converter. REFER to Direct Current/Direct Current (DC/DC) Converter Direct Current/Direct Current (DC/DC) Converter. REPEAT the self-test. TEST the system for normal operation.

No
The concern is not present at this time. DTC P0563 was most likely set due to the 12-volt battery being recently jump started or incorrectly charged using a battery charger. CLEAR the DTC. REPEAT the self-test. TEST the system for normal operation.

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