DTC P062F-46: Hybrid/EV Powertrain Control Module EEPROM Calibration / Parameter Memory Failure [11/2018 - 08/2020]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Utility / Vehicle Control History (RoB).

   Powertrain > Hybrid Control > Utility 

   Tester Display
   Vehicle Control History (RoB)

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

   Result

   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

5. Turn the power switch off.

Result: 

B 

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY. Refer to  REMOVAL [11/2018 - 02/2019]  , or refer to  REMOVAL [02/2019 - 10/2019]  , or refer to  REMOVAL [10/2019 - 08/2020] 

Result: 

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Read the Freeze Frame Data of DTC P062F-46.

   HINT: 

   The value of the Freeze Frame Data item Auxiliary Battery 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.
4. 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.
5. Compare the values in the Freeze Frame Data and the Vehicle Control History.

   Result

   Result	Proceed to
   The total distance driven is the same.	A
   The total distance driven is not the same.	B

6. Turn the power switch off.

Result: 

B 

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY. Refer to  REMOVAL [11/2018 - 02/2019]  , or refer to  REMOVAL [02/2019 - 10/2019]  , or refer to  REMOVAL [10/2019 - 08/2020] 

Result: 

A 

See step  3

1. 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.
2. 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.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

See step  5

Result: 

NG 

See step  4

Result

Result: 

NEXT 

See step  5

See step  3

Result

Result: 

NEXT 

See step  6

1. Connect the Techstream to the DLC3.
2. Turn the power switch off and wait for 2 minutes or more.
3. Turn the power switch on (IG) and turn the Techstream on.
4. With power switch on (IG) and wait for 15 seconds or more.
5. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
6. Check if DTCs are output.

   Powertrain > Hybrid Control > Trouble Codes 

   Result

   Result	Proceed to
   P062F-46 is not output.	A
   P062F-46 is output.	B

7. Turn the power switch off.

Result: 

A 

END 

Result: 

B 

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY. Refer to  REMOVAL [11/2018 - 02/2019]  , or refer to  REMOVAL [02/2019 - 10/2019]  , or refer to  REMOVAL [10/2019 - 08/2020]