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Recovery Inspection [12/2023 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus TX 550h+ and 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT FOR ELECTROLYTE LEAK 
    WARNING:

    Be sure to wear insulated gloves and protective goggles.

    1. Position the HV supply battery assembly as shown in the illustration and leave it for 5 minutes.
      GTY998897Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 155 mm (6.10 in.) or more
    2. Check that no electrolyte is leaking from the HV supply battery assembly.

      OK

      There is no electrolyte leaking from the HV supply battery assembly.

      WARNING:
      • Perform this procedure in an area where the battery will not be exposed to fire.
      • Do not touch the HV supply battery assembly, unless absolutely necessary, as electrolyte may be leaking.
      NOTE:

      If there is an electrolyte leak, make sure to wear insulated gloves and goggles and clean it using a piece of cloth. Do not leave electrolyte-contaminated cloths unattended. Dispose of them according to law or local regulations.

      Result

      Result
      OK
      NG

    Result: 

    NG 

    DISCHARGING 

    Result: 

    OK 

    See step  2

  2. CHECK FOR DTCS 
    1. Check the previously recorded DTCs which resulted in replacement of the HV supply battery assembly.

      Result

      Result Proceed to
      DTC record not available. A
      The HV supply battery assembly was replaced due to a reason other than the DTCs listed in the following table. B
      The HV supply battery assembly was replaced due to one of the DTCs listed in the following table. C
      DTC No.
      P1A6017
      P1A6317
      P1A6617
      P31AA17
      P0C3000
      P31B300
      P1C7D49

    Result: 

    See step  5

    Result: 

    DISCHARGING 

    Result: 

    See step  3

  3. CHECK HV SUPPLY BATTERY ASSEMBLY VOLTAGE 
    WARNING:

    Be sure to wear insulated gloves.

    1. Measure the voltage according to the value(s) in the table below.
      GTY998798Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 HV Battery Main Cable (A) *2 HV Battery Main Cable (B)
      *3 Traction Battery Plug Cable (No. 3 HV Supply Stack Sub-Assembly) - -

      Standard Voltage

      Tester Connection Condition Specified Condition
      A - D Always Below 99.5 V
      B - C Below 298.6 V
      WARNING:

      Make sure not to cross the probes of the electrical tester.

      Result

      Result
      OK
      NG

    Result: 

    NG 

    DISCHARGING 

    Result: 

    OK 

    See step  4

  4. INSULATION INSPECTION OF HV SUPPLY BATTERY ASSEMBLY 
    WARNING:

    Be sure to wear insulated gloves.

    1. Using a megohmmeter set to 500 V, measure the insulation resistance according to the value(s) in the table below.
      NOTE:

      Be sure to set the megohmmeter to 500 V when performing this test. Using a setting higher than 500 V can result in damage to the component being inspected.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A - Battery Outer Case Always 1 MΩ or higher
      B - Battery Outer Case Always 1 MΩ or higher
      GTY1000884Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 HV Battery Main Cable (A)
      *2 HV Battery Main Cable (B)
      *a Battery Outer Case

      Result

      Result
      OK
      NG

    Result: 

    NG 

    DISCHARGING 

    Result: 

    OK 

    See step  5

  5. HV SUPPLY BATTERY ASSEMBLY VISUAL CHECK 
    WARNING:

    Be sure to wear insulated gloves.

    1. Check that the HV supply battery assembly is not deformed or damaged.

      OK

      The HV supply battery assembly is not deformed or damaged.

      Result

      Result
      OK
      NG

    Result: 

    OK 

    RETURN HV SUPPLY BATTERY ASSEMBLY 

    Result: 

    NG 

    DISCHARGING