DTC B2277: Detecting Vehicle Submersion [08/2013 - ]: Procedure

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR DTC
1. Clear the DTCs. Refer to DTC CHECK / CLEAR [08/2013 - ] .
2. Turn the power 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 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 [08/2013 - ]
END (USE SIMULATION METHOD TO CHECK). Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2013 - ]