DTC B15F7: Certification ECU Vehicle Information Reading/Writing Process Malfunction [11/2018 - 10/2022]: Procedure

1. Use the Techstream to check if the CAN communication system is functioning normally.

   for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]

   for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 02/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [02/2019 - ]

   OK

   CAN communication DTCs are not output.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO CAN COMMUNICATION SYSTEM 

for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]

for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 02/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [02/2019 - ]

Result: 

OK 

See step  2

1. Check if the smart key system is malfunctioning.

   for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 08/2020] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2020 - 12/2021] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2021 - 10/2023]

   for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 02/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [02/2019 - 12/2021] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2021 - 10/2023]

   HINT: 

   Customization may not be possible depending on the malfunction in the smart key system.

   OK

   No malfunctions are present in the smart key system.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO SMART KEY SYSTEM 

for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 08/2020] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2020 - 12/2021] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2021 - 10/2023]

for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 02/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [02/2019 - 12/2021] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2021 - 10/2023]

Result: 

OK 

See step  3

1. Make a note of the customizable items for the certification ECU related system.

   HINT: 

   The items shown as customizable via the navigation system vehicle customization screen can also be changed using the Techstream. In the following step, the Techstream will be used.

   1. To match-up the items on the navigation system vehicle customization screen with the items on the Techstream, check the customize parameters list for the smart key system related items that can be customized via the navigation system vehicle customization screen.

      for Gasoline Model: Refer to CUSTOMIZE PARAMETERS [11/2018 - 08/2020] , or refer to CUSTOMIZE PARAMETERS [08/2020 - 10/2022]

      for HV Model: Refer to CUSTOMIZE PARAMETERS [11/2018 - 10/2022]

2. Using the Techstream, check that it is possible to change the settings of the customize parameters that are available for customization via the navigation system vehicle customization screen.

   OK

   The items available for customization via the navigation system vehicle customization screen can be customized successfully using the Techstream.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [11/2018 - 10/2022] 

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY 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]  , or refer to  REMOVAL [08/2020 - 12/2021]  , or refer to  REMOVAL [12/2021 - 10/2022]