DTC B15F8: D-Seat ECU Vehicle Information Reading/Writing Process Malfunction [03/2017 - 05/2023]: Procedure

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

   Refer to DIAGNOSIS SYSTEM [03/2017 - 06/2019] , or refer to DIAGNOSIS SYSTEM [06/2019 - 04/2020] , or refer to DIAGNOSIS SYSTEM [04/2020 - 11/2021] , or refer to DIAGNOSIS SYSTEM [11/2021 - 10/2022] , or refer to DIAGNOSIS SYSTEM [10/2022 - 05/2023]

   OK

   CAN communication DTCs are not output.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - 09/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 05/2023] 

Result: 

OK 

See step  2

1. Check if the front power seat control system is malfunctioning.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - ]

   HINT: 

   Customization may not be possible depending on the malfunction in the front power seat control system.

   OK

   No malfunctions are present in the front power seat control system.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO FRONT POWER SEAT CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - ] 

Result: 

OK 

See step  3

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [03/2017 - 06/2019] , or refer to DTC CHECK / CLEAR [06/2019 - 04/2020] , or refer to DTC CHECK / CLEAR [04/2020 - 10/2022] , or refer to DTC CHECK / CLEAR [10/2022 - 05/2023]

   Body Electrical > Navigation System > Clear DTCs 

2. Recheck for DTCs and check that no DTCs are output.

   Refer to DTC CHECK / CLEAR [03/2017 - 06/2019] , or refer to DTC CHECK / CLEAR [06/2019 - 04/2020] , or refer to DTC CHECK / CLEAR [04/2020 - 10/2022] , or refer to DTC CHECK / CLEAR [10/2022 - 05/2023]

   Body Electrical > Navigation System > Trouble Codes 

   OK

   No DTCs are output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - 04/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2020 - 05/2023] 

Result: 

NG 

REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [03/2017 - 05/2023]