DTC B2277: Detecting Vehicle Submersion [08/2013 - ]: Description
WARNING: This page is about a different car, the 2014 Lexus ES 300h. 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 in the power management control ECU is detected.
HINT:
When the cable is disconnected and reconnected to the negative (-) auxiliary battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
| DTC Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2277 | The water submersion detection circuit in the power management control ECU detects water submersion (1-trip detection logic*). |
|
Wait 300 seconds after connecting the cable to the negative (-) auxiliary battery terminal. |
- *: 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 power switch cannot be turned off and the hybrid control system cannot be started. | - |