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DTC B2277: Detecting Vehicle Submersion [10/2018 - ]: Description

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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: 
  1. Wait 300 seconds after connecting the cable to the negative (-) auxiliary battery terminal.
  1. *: 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. -
RELATED DATA LIST AND ACTIVE TEST ITEMS

DTC No. Data List and Active Test
B2277 -
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