DTC B2788: IG2 Signal Malfunction [09/2022 - ]: Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

CLEAR DTC

Clear the DTCs.

Body Electrical > Smart Key > Clear DTCs

Result

Proceed to
NEXT

Result:

See step 2

CHECK FOR DTC

Check for DTCs.

Body Electrical > Smart Key > Trouble Codes

DTC B2788 is not output.

Result

Proceed to
OK
NG

Result:

END

Result:

REPLACE ID CODE BOX (IMMOBILISER CODE ECU). Refer to REMOVAL [09/2022 - ]