DTC B2277: Detecting Vehicle Submersion [08/2014 - ]: Procedure

CHECK FOR DTC
1. Clear the DTCs. Refer to DTC CHECK / CLEAR [08/2014 - ] .
2. Turn the engine switch on (IG).
3. After 330 seconds have elapsed, check for DTCs.
  OK
  
  DTC B2277 is not output
  
  HINT:
  
  If there are any signs that water was present, before replacing the certification ECU (smart key ECU assembly), take measures to prevent any further water entry.
NG → See step 2

OK → See step 3
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to REMOVAL [08/2014 - ]
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2014 - ]