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DTC B2277: Detecting Vehicle Submersion [09/2014 - ]: Description

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*).
  • Submersion of power management control ECU
  • Power management control ECU
Wait 300 seconds after connecting the cable to the negative (-) auxiliary battery terminal.
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. -
RELATED DATA LIST AND ACTIVE TEST ITEMS

DTC Data List Item Active Test Item
B2277 - -