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Home >> Toyota >> 2010 >> Prius PHV >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 111 (Smart Key System (Start Function) (Diagnostic Codes & Circuit Tests) (Except PHV)) >> SMART KEY SYSTEM (for Start Function) >> DTC B2277: Detecting Vehicle Submersion >> Inspection Procedure >> Procedure
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Inspection Procedure: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK FOR DTC 
    1. Clear the DTC. Refer to DTC CHECK / CLEAR .
    2. Turn the power switch on (IG).
    3. After 330 seconds have elapsed, check if the DTC has been set 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 

  2. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to  REMOVAL 
  3. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING