DTC B278D: Malfunction of ID-BOX Recognition [08/2019 - ]: Procedure
WARNING: This page is about a different car, the 2022 Toyota Sequoia, 2021 Toyota Sequoia, and 2020 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
- CLEAR DTC
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Smart Key / Trouble Codes.
- Clear the DTCs.
Refer to DTC CHECK / CLEAR [08/2019 - ]
Result
Proceed to NEXT
Result:
NEXT
See step 2
- CHECK FOR DTC
- Enter the following menus: Body Electrical / Smart Key / Trouble Codes.
- Check for DTCs.
Refer to DTC CHECK / CLEAR [08/2019 - ]
HINT:
Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.
Result
Result Proceed to DTC B278D is not output. A DTC B278D is output. B
Result:
A
END
Result:
B
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to REMOVAL [08/2019 - ]