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Home >> Toyota >> 2011 >> Camry Base, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 107 (Hybrid Battery Control (Hybrid) (Diagnostic Codes (P0A1F-123 - U029A-123)) >> Hybrid Battery System >> DTC P0A7F-123: Hybrid Battery Pack Deterioration >> Procedure

DTC P0A7F-123: Hybrid Battery Pack Deterioration: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK FOR DTCS (DTC P0A1F-123 IS OUTPUT) 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
    4. Check if DTCs are output.

      Result

      DTC P0A1F-123 is output.

    YES → GO TO INSPECTION PROCEDURE RELEVANT TO OUTPUT DTC 

    NO: 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 Techstream to the DLC3.
    3. Turn the power switch on (READY).
    4. Select the following menu items: Powertrain / Hybrid Control / Data List / Battery Block Vol - V01 to V17.
    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 V17") while fully depressing the accelerator pedal.
    9. Compare the battery block voltages ("Battery Block Vol - V01 to V17") between the even and odd number groups in each combination shown in the table below.
      Even number group Odd 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 - V14 Battery Block Vol - V17←→Battery Block Vol - V14
    10. Check if the difference in voltage of each combination is 0.3 V or more.

      Result

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

      HINT: 

      Difference in voltage of each combination may be 0.3 V or more due to a battery smart unit internal error.

    B → See step   3 

    A → See step   4 

  3. REPLACE HV BATTERY. Refer to  REMOVAL 
  4. REPLACE BATTERY SMART UNIT. Refer to  REMOVAL 
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