DTC B2277: Detecting Vehicle Submersion [12/2013 - ]: Procedure

CHECK FOR DTC
1. Clear the DTCs. Refer to DTC CHECK / CLEAR [12/2013 - ] .
2. Turn the power switch on (IG).
3. After 330 seconds have elapsed, check if the DTC has been output again.
  OK
  
  DTC B2277 is not output
  
  HINT:
  
  If there are any signs that water was present, before replacing the power management control ECU, take measures to prevent any further water entry.
NG → See step 2

OK → See step 3
REPLACE POWER MANAGEMENT CONTROL ECU. Refer to REMOVAL [12/2013 - ]
END (USE SIMULATION METHOD TO CHECK). Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - ]