Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026Q1L
Model Year Start: 2023 Model: Corolla HV Prod Date Range: [09/2022 -           ]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): P062F44; Hybrid/EV Powertrain Control Module EEPROM Data Memory Failure; 2023 - 2025 MY Corolla HV [09/2022 -        ]

DTC

P062F44

Hybrid/EV Powertrain Control Module EEPROM Data Memory Failure

DESCRIPTION

The hybrid vehicle control ECU monitors its internal operation and will store these DTCs when it detects an internal malfunction. If these DTCs are output, replace the hybrid vehicle control ECU.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P062F44

Hybrid/EV Powertrain Control Module EEPROM Data Memory Failure

ECU internal malfunction

(EEPROM error)

(1 trip detection logic)

Hybrid vehicle control ECU

Comes on

Master Warning:

Does not come on

MONITOR DESCRIPTION

The hybrid vehicle control ECU monitors its internal operation. If the internal operation is malfunctioning, the hybrid vehicle control ECU illuminates the MIL and stores a DTC.

MONITOR STRATEGY

Related DTCs

P062F (INF P062F44): Internal control module EEPROM functional

Required sensors/components

Hybrid vehicle control ECU

Frequency of operation

Continuous

Duration

TMC's intellectual property

MIL operation

Immediately / 1 driving cycle

Sequence of operation

None

TYPICAL ENABLING CONDITIONS

The monitor will run whenever the following DTCs are not stored

TMC's intellectual property

Other conditions belong to TMC's intellectual property

-

TYPICAL MALFUNCTION THRESHOLDS

TMC's intellectual property

-

COMPONENT OPERATING RANGE

Hybrid vehicle control ECU

DTC P062F (INF P062F44) is not detected

CONFIRMATION DRIVING PATTERN

HINT:

  • After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

    Click here 2023 - 2025 MY Corolla HV [09/2022 -        ]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): UTILITY

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here 2023 - 2025 MY Corolla HV [09/2022 -        ]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): DTC CHECK / CLEAR

  1. Connect the GTS to the DLC3.
  2. Turn the ignition switch to ON and turn the GTS on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off and wait for 2 minutes or more.
  5. Turn the ignition switch to ON and turn the GTS on.
  6. With ignition switch to ON and wait for 15 seconds or more. [*1]

    HINT:

    [*1]: Normal judgment procedure.

    The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

  7. Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
  8. Check the DTC judgment result.

    HINT:

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
    • If the judgment result shows INCOMPLETE, perform the normal judgment procedure again.

CAUTION / NOTICE / HINT

NOTICE:

  • Be sure to check that the applicable DTC is output from the hybrid control system.
  • There is a possibility that the DTC P062F44 is issued from the ECUs of the ECM and hybrid vehicle control ECU. Use GTS to conduct a health check to confirm which ECU the DTC is issued from and then inspect the related system.

PROCEDURE

1.

CHECK DTC OUTPUT (HEALTH CHECK)

(a) Enter the following menus: System Select / Health Check.

(b) Check for DTCs.

Result

Proceed to

P062F44 is output from the hybrid control system.

A

P062F44 is output from any system other than the hybrid control system.

B

(c) Turn the ignition switch off.

A

REPLACE HYBRID VEHICLE CONTROL ECU

B

GO TO PERFORM DIAGNOSIS FOR RESPECTIVE SYSTEM