FixVault

DTC B2277 Detecting Vehicle Submersion: Description

This DTC is output when the submersion circuit monitor inside the power source control ECU detects that the vehicle is submerged in water.

DTC DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
B2277 Submersion circuit monitor inside power source control ECU detects that vehicle is submerged in water Power source control ECU
  1. CHECK FOR DTC 
    1. Delete the DTC (See DIAGNOSIS SYSTEM  ).

      HINT:

      After all DTCs are cleared, check if the trouble occurs again 30 seconds after the engine switch is turned on (IG).

    2. Check for DTCs again.

      OK: No DTC is output. 

    NG : REPLACE POWER SOURCE CONTROL ECU 

    OK : CHECK INTERMITTENT PROBLEMS