DTC B2451: Variation Code not Written [11/2020 - 11/2021]: Procedure

1. Synchronize the vehicle information.

   Refer to REGISTRATION [11/2020 - 11/2021]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Clear the DTCs.

   for Mono Camera Type :

   Body Electrical > HL AutoLeveling > Clear DTCs 

   for Stereo Camera Type:

   Body Electrical > AFS > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Check for DTCs.

   for Mono Camera Type :

   Body Electrical > HL AutoLeveling > Trouble Codes 

   for Stereo Camera Type:

   Body Electrical > AFS > Trouble Codes 

   HINT: 

   If the headlight ECU sub-assembly LH stores DTC B2451 even though the vehicle information has been synchronized, the headlight ECU sub-assembly LH may be malfunctioning.

   Result

   Result	Proceed to
   B2451 is not output	A
   B2451 is output	B

Result: 

A 

END (VEHICLE SPECIFICATIONS WERE NOT STORED) 

Result: 

B 

REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to  REMOVAL [11/2020 - 11/2021]