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Home >> Ford >> 2021 >> Explorer Limited Hybrid, RWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Electric Powertrain Control - 3.3L DURATEC-V6 - Hybrid (BP) (2 Of 2) >> Diagnosis And Testing >> Electric Powertrain Control >> Pinpoint Tests >> Pinpoint Test C : P0563

Pinpoint Test C : P0563

  1. Normal Operation and Fault Conditions 

    REFER to: Electric Powertrain Control - System Operation and Component Description .

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    SOBDMC P0563:00 System Voltage High: No Sub Type Information This DTC sets when the internal processor voltages are greater than a calibrated range.

    Possible Sources 

    • External excessive voltage
    • 24-volt jump start
    • Inverter System Controller (ISC)

  2. C1 CHECK THE INVERTER SYSTEM CONTROLLER (ISC) CIRCUIT FOR VOLTAGE

    • Ignition OFF.

    • Disconnect Inverter System Controller (ISC) C1458A.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1458A-K3
      GFD513962Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 10.5 V? 

    Yes  GO to  C2
    No  REFER to: Charging System . To diagnose the low voltage symptom. Using a diagnostic scan tool, clear the Inverter System Controller (ISC) DTCs.

  3. C2 CHECK THE INVERTER SYSTEM CONTROLLER (ISC) CIRCUIT FOR VOLTAGE

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1458A-K3 
      GFD513962Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage less than 16V? 

    Yes  GO to  C3
    No  REFER to: Charging System . To diagnose the high voltage symptom. Using a diagnostic scan tool, clear the Inverter System Controller (ISC) DTCs.

  4. C3 CHECK FOR INVERTER SYSTEM CONTROLLER (ISC) DIAGNOSTIC TROUBLE CODES (DTCS)

    • Using a diagnostic scan tool, clear the Inverter System Controller (ISC) DTCs.

    • Allow the Inverter System Controller (ISC) to complete a normal power down sequence.

    • Using a diagnostic scan tool, perform the Inverter System Controller (ISC) self-test.

    Was DTC P0563 read from the Inverter System Controller (ISC)? 

    Yes  DTC P0563 frequently sets after the vehicle has been jump-started. Clearing DTCs is expected to clear this DTC, if the DTC continuously returns, INSTALL a new Inverter System Controller (ISC). REFER to: Inverter System Controller [SOBDMC] .
    No  Test is complete, no faults were found.
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