DTC B2451: Variation Code not Written [02/2019 - 12/2021]: Procedure

WARNING: This page is about a different car, the 2021 Toyota RAV4, 2020 Toyota RAV4, and 2019 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

SYNCHRONIZE VEHICLE INFORMATION

Synchronize the vehicle information.

Refer to INITIALIZATION [02/2019 - 12/2021]

Result

Proceed to
NEXT

Result:

See step 2

CLEAR DTC

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / AFS / Clear DTCs.

Clear the DTCs.

Body Electrical > AFS > Clear DTCs

Result

Proceed to
NEXT

Result:

See step 3

CHECK FOR DTC

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / AFS / Trouble Codes.

Check for DTCs.

Body Electrical > AFS > Trouble Codes

DTC B2451 is not output.

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

Proceed to
OK
NG

Result:

END (VEHICLE SPECIFICATIONS WERE NOT STORED)

Result:

REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to REMOVAL [02/2019 - 12/2021]