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Home >> Lexus >> 2015 >> GS 450h Base >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Battery Management Systems >> Hybrid Battery System (Diagnostic Codes) >> Hybrid Battery System >> DTC P3011-123: Battery Block 1 Becomes Weak; DTC P3012-123: Battery Block 2 Becomes Weak; DTC P3013-123: Battery Block 3 Becomes Weak; DTC P3014-123: Battery Block 4 Becomes Weak; DTC P3015-123: Battery Block 5 Becomes Weak; DTC P3016-123: Battery Block 6 Becomes Weak; DTC P3017-123: Battery Block 7 Becomes Weak; DTC P3018-123: Battery Block 8 Becomes Weak; DTC P3019-123: Battery Block 9 Becomes Weak; DTC P3020-123: Battery Block 10 Becomes Weak; DTC P3021-123: Battery Block 11 Becomes Weak; DTC P3022-123: Battery Block 12 Becomes Weak; DTC P3023-123: Battery Block 13 Becomes Weak; DTC P3024-123: Battery Block 14 Becomes Weak; DTC P3025-123: Battery Block 15 Becomes Weak; DTC P3026-123: Battery Block 16 Becomes Weak; DTC P3027-123: Battery Block 17 Becomes Weak; DTC P3028-123: Battery Block 18 Becomes Weak; DTC P3029-123: Battery Block 19 Becomes Weak; DTC P302F-123: Battery Block 20 Becomes Weak [09/2014 - 10/2015] >> Procedure
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DTC P3011-123: Battery Block 1 Becomes Weak; DTC P3012-123: Battery Block 2 Becomes Weak; DTC P3013-123: Battery Block 3 Becomes Weak; DTC P3014-123: Battery Block 4 Becomes Weak; DTC P3015-123: Battery Block 5 Becomes Weak; DTC P3016-123: Battery Block 6 Becomes Weak; DTC P3017-123: Battery Block 7 Becomes Weak; DTC P3018-123: Battery Block 8 Becomes Weak; DTC P3019-123: Battery Block 9 Becomes Weak; DTC P3020-123: Battery Block 10 Becomes Weak; DTC P3021-123: Battery Block 11 Becomes Weak; DTC P3022-123: Battery Block 12 Becomes Weak; DTC P3023-123: Battery Block 13 Becomes Weak; DTC P3024-123: Battery Block 14 Becomes Weak; DTC P3025-123: Battery Block 15 Becomes Weak; DTC P3026-123: Battery Block 16 Becomes Weak; DTC P3027-123: Battery Block 17 Becomes Weak; DTC P3028-123: Battery Block 18 Becomes Weak; DTC P3029-123: Battery Block 19 Becomes Weak; DTC P302F-123: Battery Block 20 Becomes Weak [09/2014 - 10/2015]: Procedure

  1. CHECK DTC OUTPUT (HYBRID CONTROL) 

    See step  1

    Result:  B

    B 

    GO TO DTC CHART (P0AFC-123) 

    (See service information). Refer to DTC P0AFC-123: Hybrid Battery Pack Sensor Module [09/2014 - ] )

    Result:  A

    A 

    See step  2

  2. READ VALUE USING TECHSTREAM (VB01 - VB20) 
    1. Ensure the safety of the areas in front and at the back of the vehicle.
    2. Apply the parking brake and secure the wheels using chocks.
    3. Connect the Techstream to the DLC3.
    4. Turn the power switch on (READY).
    5. Fully warm up the engine and turn the air conditioning off.
    6. Enter the following menus: Powertrain / Hybrid Control / Data List / Battery Block Vol -V01 to V20.
    7. Firmly depress the brake pedal with your left foot.
    8. Move the shift lever to D.
    9. Record each battery block voltage from the Data List "Battery Block Vol -V01 to V20" while fully depressing the accelerator pedal.
    10. Compare the battery block voltages "Battery Block Vol -V01 to V20" between the even and odd number groups in each combination shown in the table below.
      TABLE 1

      Circuit A Battery Block Circuit B Battery Block Condition
      Battery Block Vol - V01 (VB1) Battery Block Vol - V02 (VB2) "Battery Block Vol - V01" - "Battery Block Vol - V02" = 0.3 V or more
      Battery Block Vol - V04 (VB4) Battery Block Vol - V03 (VB3) "Battery Block Vol - V04" - "Battery Block Vol - V03" = 0.3 V or more
      Battery Block Vol - V05 (VB5) Battery Block Vol - V06 (VB6) "Battery Block Vol - V05" - "Battery Block Vol - V06" = 0.3 V or more
      Battery Block Vol - V08 (VB8) Battery Block Vol - V07 (VB7) "Battery Block Vol - V08" - "Battery Block Vol - V07" = 0.3 V or more
      Battery Block Vol - V09 (VB9) Battery Block Vol - V10 (VB10) "Battery Block Vol - V09" - "Battery Block Vol - V10" = 0.3 V or more
      Battery Block Vol - V12 (VB12) Battery Block Vol - V11 (VB11) "Battery Block Vol - V12" - "Battery Block Vol - V11" = 0.3 V or more
      Battery Block Vol - V13 (VB13) Battery Block Vol - V14 (VB14) "Battery Block Vol - V13" - "Battery Block Vol - V14" = 0.3 V or more
      Battery Block Vol - V16 (VB16) Battery Block Vol - V15 (VB15) "Battery Block Vol - V16" - "Battery Block Vol - V15" = 0.3 V or more
      Battery Block Vol - V17 (VB17) Battery Block Vol - V18 (VB18) "Battery Block Vol - V17" - "Battery Block Vol - V18" = 0.3 V or more
      Battery Block Vol - V20 (VB20) Battery Block Vol - V19 (VB19) "Battery Block Vol - V20" - "Battery Block Vol - V19" = 0.3 V or more
      TABLE 2

      Circuit A Battery Block Circuit B Battery Block Condition
      Battery Block Vol - V01 (VB1) Battery Block Vol - V02 (VB2) "Battery Block Vol - V02" - "Battery Block Vol - V01" = 0.3 V or more
      Battery Block Vol - V04 (VB4) Battery Block Vol - V03 (VB3) "Battery Block Vol - V03" - "Battery Block Vol - V04" = 0.3 V or more
      Battery Block Vol - V05 (VB5) Battery Block Vol - V06 (VB6) "Battery Block Vol - V06" - "Battery Block Vol - V05" = 0.3 V or more
      Battery Block Vol - V08 (VB8) Battery Block Vol - V07 (VB7) "Battery Block Vol - V07" - "Battery Block Vol - V08" = 0.3 V or more
      Battery Block Vol - V09 (VB9) Battery Block Vol - V10 (VB10) "Battery Block Vol - V10" - "Battery Block Vol - V09" = 0.3 V or more
      Battery Block Vol - V12 (VB12) Battery Block Vol - V11 (VB11) "Battery Block Vol - V11" - "Battery Block Vol - V12" = 0.3 V or more
      Battery Block Vol - V13 (VB13) Battery Block Vol - V14 (VB14) "Battery Block Vol - V14" - "Battery Block Vol - V12" = 0.3 V or more
      Battery Block Vol - V16 (VB16) Battery Block Vol - V15 (VB15) "Battery Block Vol - V15" - "Battery Block Vol - V16" = 0.3 V or more
      Battery Block Vol - V17 (VB17) Battery Block Vol - V18 (VB18) "Battery Block Vol - V17" - "Battery Block Vol - V18" = 0.3 V or more
      Battery Block Vol - V20 (VB20) Battery Block Vol - V19 (VB19) "Battery Block Vol - V20" - "Battery Block Vol - V19" = 0.3 V or more
      GTY528021Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      When an internal malfunction occurs in the battery smart unit, this symptom (difference in voltage of 0.3 V or more for all 10 pairs of blocks) will occur.

      Result

      Result Proceed to
      All conditions in table 1 are met. A
      All conditions in table 2 are met.
      Other than above B
    11. Turn the power switch off.

    Result:  A

    A 

    REPLACE BATTERY SMART UNIT 

    (See service information). Refer to REMOVAL [09/2014 - 10/2015] )

    Result:  B

    B 

    See step  3

  3. CHECK DTC OUTPUT (HYBRID CONTROL) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
    4. Read output DTCs.
      RESULT

      Result Proceed to
      P3018-123 is not output. A
      P3018-123 is output. B

      HINT: 

      DTC P3018-123 may also be stored if there is foreign matter, etc. adhering to the connecting part of the service grip.

    5. Turn the power switch off.

    Result:  A

    A 

    REPLACE HV BATTERY 

    (See service information). Refer to REMOVAL [09/2014 - 10/2015] )

    Result:  B

    B 

    REPLACE HV BATTERY AND SERVICE PLUG GRIP 

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