DTC B2277: Detecting Vehicle Submersion: Procedure

CHECK FOR WATER DAMAGE
1. Check the main body ECU, peripheral components, and wire harnesses for traces of water.
  OK
  
  There are no traces of water.
NG → TAKE APPROPRIATE MEASURES AGAINST CAUSE OF WATER DAMAGE AND REPLACE MAIN BODY ECU

OK: Go to next step
CHECK DTC OUTPUT
1. Delete the DTCs. Refer to DTC CHECK / CLEAR .
  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 MAIN BODY ECU

OK → END