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DTC P058A-01: Battery Monitor Module General Electrical Failure [12/2019 - 10/2022]: Procedure

  1. CHECK BATTERY STATE SENSOR ASSEMBLY INSTALLATION CONDITION 
    1. Check installation condition of the battery state sensor assembly.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    INSTALL THE BATTERY STATE SENSOR ASSEMBLY CORRECTLY. Refer to  INSTALLATION [12/2019 - 10/2022] 

    Result: 

    OK 

    See step  2

  2. CHECK CHARGING SYSTEM 

    Refer to ON-VEHICLE INSPECTION [12/2019 - 10/2022] 

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPAIR OR REPLACE CHARGING SYSTEM 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Check that the battery state sensor assembly connector is securely connected.

      OK

      The connector is securely connected.

    2. Disconnect the A51 battery state sensor assembly connector.
    3. Check the connector case and terminals for deformation or corrosion.

      OK

      No deformation or corrosion.

    4. Measure the voltage according to the value(s) in the table below.
      GTY904077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Battery State Sensor Assembly)

      Standard Voltage

      Tester Connection Condition Specified Condition
      A51-1 (+B) - Body ground Always 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BATTERY STATE SENSOR ASSEMBLY. Refer to  REMOVAL [12/2019 - 10/2022] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - BATTERY STATE SENSOR ASSEMBLY)