LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2009 >> LS 600hL >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Hybrid Battery Control) >> 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 or 20 Becomes Weak >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR DTCS (DTC P0A1F-123 IS OUTPUT) 
    1. Connect the intelligent tester or Techstream to the DLC3
    2. Turn the power switch on (IG)
    3. Select the following menu items.
      1. Intelligent tester-Select DIAGNOSIS/OBD/MOBD / HV ECU / DTC INFO / CURRENT CODES.
      2. Techstream - Select Powertrain / Hybrid Control / Trouble Codes.
    4. Check if DTCs are output

      Result 

      RESULT REFERENCE

      Result Proceed to
      P0A1F-123 is not output A
      DTC P0A1F-123 is also output. B

    B: Go to DTC CHART (P0A1F-123)  (See DIAGNOSTIC TROUBLE CODE CHART  )

    A: Go to next step 

  2. CHECK BATTERY SMART UNIT 
    1. Ensure the safety of the areas in front and at the back of the vehicle
    2. Connect the intelligent tester or Techstream to the DLC3.
    3. Turn the power switch on (READY)
    4. Select the following menu items:
      1. Intelligent tester - Select. DIAGNOSIS / OBD/MOBD / HV ECU / DATA LIST / V1 to 20 BATT BLOCK.
      2. Techstream - Select. Powertrain / Hybrid Control / Data List / Battery Block Vol - V01 to V20
    5. Fully warm up the engine and turn the air conditioning off
    6. Firmly depress the brake pedal with your left foot
    7. Move the shift lever to the D position
    8. Record each battery block voltage in the data list ("Battery Block Vol - V01 to V20") while fully depressing the accelerator pedal
    9. 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
      VOLTAGE SPECIFICATION

      Odd number group Even number group Battery block voltages to be compared
      Battery Block Vol - V01 Battery Block Vol - V02 Battery Block Vol - V01 - Battery Block Vol - V02
      Battery Block Vol - V03 Battery Block Vol-V04 Battery Block Vol - V03 - Battery Block Vol - V04
      Battery Block Vol - V05 Battery Block Vol-V06 Battery Block Vol - V05 - Battery Block Vol - V06
      Battery Block Vol - V07 Battery Block Vol - V08 Battery Block Vol - V07 - Battery Block Vol - V08
      Battery Block Vol - V09 Battery Block Vol-V10 Battery Block Vol - V09 - Battery Block Vol - V10
      Battery Block Vol - V11 Battery Block Vol - V12 Battery Block Vol - V11 - Battery Block Vol - V12
      Battery Block Vol - V13 Battery Block Vol - V14 Battery Block Vol - V13 - Battery Block Vol - V14
      Battery Block Vol - V15 Battery Block Vol-V16 Battery Block Vol - V15 - Battery Block Vol - V16
      Battery Block Vol - V17 Battery Block Vol - V18 Battery Block Vol - V17 - Battery Block Vol - V18
      Battery Block Vol - V19 Battery Block Vol - V20 Battery Block Vol - V19 - Battery Block Vol - V20
    10. Check if the difference in voltage of each combination is 0 3 V or more.

      Result 

      RESULT REFERENCE

      Result Proceed to
      Difference in voltage of each combination is less than 0.3 V. A
      Difference in voltage of each combination is 0.3 V or more. B

      HINT:

      • Difference in voltage of each combination may be 0 3 V or more due to a battery smart unit internal error
      • Refer to the wiring diagram for DTC P0A80-123 (See DTC P0A80-123 REPLACE HYBRID BATTERY PACK  ).

    B: REPLACE BATTERY SMART UNIT  (See REMOVAL  )

    A: REPLACE HV BATTERY  (See HV BATTERY  )

scientia non olet · About LEMON Manuals