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DTC B2277: Detecting Vehicle Submersion: Procedure

  1. CHECK FOR TRACES OF WATER 
    1. Check the power management control ECU, peripheral components and wire harnesses for traces of water.
      RESULT

      Result Proceed to
      There are traces of water A
      There are no traces of water B

    B → See step   2 

    A → TAKE APPROPRIATE MEASURES AGAINST CAUSE OF WATER DAMAGE AND REPLACE POWER MANAGEMENT CONTROL ECU 

  2. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to  REMOVAL