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Home >> Lexus >> 2012 >> CT 200h F Sport >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Battery System (Diagnostic Codes (P0A7F-123 - U029A-123)) >> Hybrid Battery System >> DTC P0AC0-123: Hybrid Battery Pack Current Sensor Circuit Range / Performance >> Procedure

DTC P0AC0-123: Hybrid Battery Pack Current Sensor Circuit Range / Performance: Procedure

  1. CHECK DTC OUTPUT (HV) See step   1 

    B → GO TO  DIAGNOSTIC TROUBLE CODE CHART 

    A: Go to next step 

  2. REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY 
    1. Replace the hybrid battery junction block assembly. Refer to COMPONENTS .

    NEXT: Go to next step 

  3. CLEAR DTC (HV) 
    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. Clear the DTCs and freeze frame data. Refer to DTC CHECK / CLEAR .
    5. Perform a road test to charge and discharge the HV battery.

      HINT: 

      2 trip detection logic is used. After the first road test, turn the power switch off and perform a road test again.

    6. Disconnect the Techstream from the DLC3.

    NEXT: Go to next step 

  4. RECONFIRM DTC OUTPUT (HV) 
    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. Refer to DTC CHECK / CLEAR .

      Result

      Result Proceed to
      DTCs P0AC0-123 is not output. A
      DTCs P0AC0-123 is output. B
    5. Disconnect the Techstream from the DLC3.

    B → See step   5 

    A → RECOVERY TO NORMAL 

  5. REPLACE BATTERY SMART UNIT. Refer to  COMPONENTS