DTC B2451: Vehicle Specifications have not been Stored [06/2015 - ]: Procedure

1. Register vehicle information for the headlight light control ECU sub-assembly LH.

   Refer to INITIALIZATION [06/2015 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [06/2015 - 11/2018] , or refer to DTC CHECK / CLEAR [11/2018 - ]

   Body Electrical > HL AutoLeveling > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Turn the power switch on (IG).
2. Turn on the headlights using the headlight dimmer switch.
3. Check for DTCs.

   Refer to DTC CHECK / CLEAR [06/2015 - 11/2018] , or refer to DTC CHECK / CLEAR [11/2018 - ]

   Body Electrical > HL AutoLeveling > Trouble Codes 

   Result

   Result	Proceed to
   DTC B2451 output does not occur	A
   DTC B2451 output occurs	B

Result: 

A 

END (NORMAL AFTER VEHICLE INFORMATION REGISTERED) 

Result: 

B 

REPLACE HEADLIGHT LIGHT CONTROL ECU SUB-ASSEMBLY LH. Refer to  DISASSEMBLY [06/2015 - ]