DTC B2277: Detecting Vehicle Submersion (07/2015 -): Procedure

CHECK FOR DTC
1. Clear the DTCs (Refer to DTC CHECK / CLEAR (07/2015 -) ).
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.
Result: OK

OK

USE SIMULATION METHOD TO CHECK

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING (07/2015 -) )

Result: NG

NG

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

(Refer to REMOVAL (07/2015 -) )