DTC B2451: Vehicle Specifications have not been Stored [03/2017 - ]: Procedure

1. Synchronize the vehicle information.

   Refer to REGISTRATION [03/2017 - 04/2020] , or refer to REGISTRATION [04/2020 - 05/2023] , or refer to REGISTRATION [05/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Turn the engine switch on (IG).
2. Check for DTCs.

   Refer to DTC CHECK / CLEAR [03/2017 - 05/2023] , or refer to DTC CHECK / CLEAR [05/2023 - ]

   Body Electrical > HL AutoLeveling > Trouble Codes 

   OK

   DTC B2451 is not output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (VEHICLE SPECIFICATIONS WERE NOT STORED) 

Result: 

NG 

REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to  REMOVAL [03/2017 - 05/2023]  , or refer to  REMOVAL [05/2023 - ]