DTC B2277: Detecting Vehicle Submersion [08/2019 - ]: Description
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.
This DTC is stored when a malfunction in the water submersion detection circuit inside the certification ECU (smart key ECU assembly) is detected.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| B2277 | Detecting Vehicle Submersion | Water submersion detected by the water submersion detection circuit inside the certification ECU (smart key ECU assembly). (1-trip detection logic*) | Certification ECU (smart key ECU assembly) | DTC Output Confirmation Operation:
|
- *: Only detected while a malfunction is present.
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| The engine switch cannot be turned off and the engine cannot be started. | - |
RELATED DATA LIST AND ACTIVE TEST ITEMS
| DTC No. | Data List and Active Test |
|---|---|
| B2277 | - |