DTC B2790-46: ID-BOX Calibration / Parameter Memory Failure [11/2023 - ]: Procedure

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

   HINT: 

   Refer to REMOVAL [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Using the GTS, 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.

   Refer to REGISTRATION [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Register the ECU communication ID codes.

   Refer to REGISTRATION [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  5

1. Using the GTS, check if DTC is output.

   Body Electrical > Smart Key > Trouble Codes 

   Result

   Result	Proceed to
   B2790-46 is output	A
   B2790-46 is not output	B

Result: 

A 

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

Result: 

B 

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