Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GCMQ
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 09/2022]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): P062F46; Hybrid/EV Powertrain Control Module EEPROM Calibration / Parameter Memory Failure; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]

DTC

P062F46

Hybrid/EV Powertrain Control Module EEPROM Calibration / Parameter 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

P062F46

Hybrid/EV Powertrain Control Module EEPROM Calibration / Parameter Memory Failure

Either of the following conditions is met:

  • ECU internal malfunction

    (EEPROM error)

  • The power switch is turned off when the auxiliary battery voltage is 9.5 V or less.

(1 trip detection logic)
  • Hybrid vehicle control ECU
  • Auxiliary battery

Comes on

Master Warning: Comes 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 P062F46): Internal Control Module EEPROM Error

Required sensors/components

Hybrid vehicle control ECU

Frequency of operation

Continuous

Duration

TMC's intellectual property

MIL operation

Immediately

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 P062F46) 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 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): UTILITY

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

    Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): DTC CHECK / CLEAR

  1. Connect the Techstream to the DLC3.
  2. Turn the power switch on (IG) and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the power switch off and wait for 2 minutes or more.
  5. Turn the power switch on (IG) and turn the Techstream on.
  6. With power switch on (IG) 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 or N/A, 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.

PROCEDURE

1.

CHECK DATA (VEHICLE CONTROL HISTORY (HYBRID CONTROL))

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Utility / Vehicle Control History (RoB).

Powertrain > Hybrid Control > Utility

Tester Display

Vehicle Control History (RoB)

(d) Read and record the vehicle control history (Hybrid Control).

Result

Proceed to

Auxiliary Battery Voltage Low (HV) or Auxiliary Battery Voltage Low (Inverter) is stored.

A

Auxiliary Battery Voltage Low (HV) and Auxiliary Battery Voltage Low (Inverter) are not stored.

B

(e) Turn the power switch off.

B

REPLACE HYBRID VEHICLE CONTROL ECU 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL

A

2.

CHECK DATA (FREEZE FRAME DATA (HYBRID CONTROL) AND VEHICLE CONTROL HISTORY (HYBRID CONTROL))

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Read the freeze frame data of DTC P062F46.

HINT:

The value of the Freeze Frame Data item BATT Voltage immediately after the power switch is turned on (IG) may be 16.00 V (15.99 V), however this does not indicate a malfunction.

(1) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

Powertrain > Hybrid Control > Trouble Codes

(2) According to the display on the Techstream, read the data of the Freeze Frame Data and make a note of the value of Total Distance Traveled.

(d) Read the data recorded in the Vehicle Control History item (Auxiliary Battery Voltage Low (HV) or Auxiliary Battery Voltage Low (Inverter)) which was stored when the auxiliary battery voltage dropped below the threshold.

(1) Enter the following menus: Powertrain / Hybrid Control / Utility / Vehicle Control History (RoB).

Powertrain > Hybrid Control > Utility

Tester Display

Vehicle Control History (RoB)

(2) According to the display on the Techstream, read the Vehicle Control History data and make a note of the value of Total Distance Traveled.

(e) Compare the values in the Freeze Frame Data and the Vehicle Control History.

Result

Proceed to

The total distance driven is the same.

A

The total distance driven is not the same.

B

(f) Turn the power switch off.

B

REPLACE HYBRID VEHICLE CONTROL ECU 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL

A

3.

CHECK AUXILIARY BATTERY VOLTAGE

(a) Turn the power switch off and turn on the high beam headlights for 30 seconds. This will remove the surface charge from the auxiliary battery.

(b) Measure the auxiliary battery voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

Positive (+) auxiliary battery terminal - Negative (-) auxiliary battery terminal

20°C (68°F), Power switch off

12.0 V or higher

HINT:

This DTC may be stored when the power switch is turned off when the auxiliary battery voltage is low. In this case, when the auxiliary battery voltage is no longer low, after the power switch is turned on (IG) and then off several times, the vehicle will be judged as normal and the master warning will turn off.

OK

GO TO STEP 5

NG

4.

RECHARGE OR REPLACE AUXILIARY BATTERY
NEXT

5.

CLEAR DTC (HYBRID CONTROL)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

(d) Clear the DTCs.

Powertrain > Hybrid Control > Clear DTCs

(e) Turn the power switch off and wait for 2 minutes or more.

NEXT

6.

SIMULATION TEST

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG) and turn the Techstream on.

(c) With power switch on (IG) and wait for 15 seconds or more.

(d) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

(e) Check if DTCs are output.

Powertrain > Hybrid Control > Trouble Codes

Result

Proceed to

P062F46 is not output.

A

P062F46 is output.

B

(f) Turn the power switch off.

A

END
B

REPLACE HYBRID VEHICLE CONTROL ECU 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL