DTC B15F7: Certification ECU Vehicle Information Reading/Writing Process Malfunction [10/2019 - 07/2022]: Procedure

1. Use the Techstream to check if the CAN communication system is functioning normally.
   1. for Gasoline Model:

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - 07/2022]

   2. for HV Model:

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - ]

   OK

   CAN communication DTCs are not output.

   Result

   Result	Proceed to
   OK	A
   NG (for Gasoline Model)	B
   NG (for HV Model)	C

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - 07/2022] 

Result: 

C 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - 07/2022] 

Result: 

A 

See step  2

1. Check if the smart access system with push-button start (for Entry Function) is malfunctioning.
   1. for Gasoline Model:

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - 07/2022]

   2. for HV Model:

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - 07/2022]

   HINT: 

   Customization may not be possible depending on the malfunction in the smart access system with push-button start (for Entry Function).

   OK

   No malfunctions are present in the smart access system with push-button start (for Entry Function).

   Result

   Result	Proceed to
   OK	A
   NG (for Gasoline Model)	B
   NG (for HV Model)	C

Result: 

B 

GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function). Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - 07/2022] 

Result: 

C 

GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function). Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - 07/2022] 

Result: 

A 

See step  3

1. Display the "Vehicle customization" screen.
2. Make a note of the customizable items for each certification ECU related system.

   HINT: 

   The items shown as customizable via the audio and visual 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 multi-display with the items on the Techstream, check the customize parameters list for the smart access system with push-button start (for Entry Function) related items that can be customized via the multi-display screen.
      1. for Gasoline Model:

         Refer to CUSTOMIZE PARAMETERS [10/2018 - 07/2022]

      2. for HV Model:

         Refer to CUSTOMIZE PARAMETERS [10/2018 - ]

3. Using the Techstream, check that it is possible to change the settings of the customize parameters that are available for customization via the multi-display screen.

   OK

   The items available for customization via the multi-display screen can be customized successfully using the Techstream.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2019 - 07/2022] 

Result: 

NG 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [10/2018 - 07/2022]