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Home >> Lexus >> 2013 >> IS 250C Base >> Repair and Diagnosis (Single Page) >> Electrical >> Starter >> Smart Access System (Keyless Start) (Diagnostics & Circuit Tests) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (For Start Function) >> DTC B2277: Detecting Vehicle Submersion >> Procedure

DTC B2277: Detecting Vehicle Submersion: Procedure

  1. CHECK FOR DTC 
    1. Clear the DTC. Refer to DTC CHECK/CLEAR [08/2012 - ] .
    2. Turn the engine switch on (IG).
    3. After 330 seconds have elapsed, check for DTCs.

      Result

      Result Proceed to
      DTC B2277 is not output. A
      DTC B2277 is output. B

      HINT: 

      If there are any signs that water was present, before replacing the power source control ECU, take measures to prevent any further water entry.

    B → See step   2 

    A → See step   3 

  2. REPLACE POWER SOURCE CONTROL ECU. Refer to  REMOVAL [08/2012 - ] 
  3. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2012 - ]