DTC B2790: ID BOX EEPROM Malfunction [12/2019 - 11/2023]: Procedure

1. Replace the ID code box (immobiliser code ECU) with a new one.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

   HINT: 

   Refer to Registration.

   Refer to REGISTRATION [12/2019 - 10/2021] , or refer to REGISTRATION [10/2021 - 11/2023]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Clear the DTCs.

   Body Electrical > Smart Key > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Register the recognition codes to the ECUs.

   HINT: 

   Refer to Registration.

   Refer to REGISTRATION [12/2019 - 10/2021] , or refer to REGISTRATION [10/2021 - 11/2023]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Register the ECU communication ID codes.

   HINT: 

   Refer to Registration.

   Refer to REGISTRATION [12/2019 - 10/2021] , or refer to REGISTRATION [10/2021 - 11/2023]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  5

1. Check for DTCs.

   Body Electrical > Smart Key > Trouble Codes 

   HINT: 

   Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.

   Result

   Result	Proceed to
   DTC B2790 is not output.	A
   DTC B2790 is output.	B

Result: 

A 

END (ID CODE BOX (IMMOBILISER CODE ECU) WAS DEFECTIVE) 

Result: 

B 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [12/2019 - 11/2023]