HYBRID BATTERY SYSTEM, Diagnostic DTC:P0AC0-123

DTC Code DTC Name
P0AC0-123 Hybrid Battery Pack Current Sensor Circuit Range / Performance

DESCRIPTION

Refer to the description for DTC P0ABF-123.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0AC0-123 Hybrid Battery Pack Current Sensor Circuit Range / Performance

The offset value of the battery current sensor is excessively high, or the battery current sensor output is stuck.

(1 trip detection logic)

  • Battery voltage sensor

  • Hybrid battery junction block assembly

 Comes on

Master Warning Light:

Comes on
Related Data List
DTC No. Data List
P0AC0-123 Batt Pack Current Val

CAUTION / NOTICE / HINT

CAUTION:


  • Before inspecting the high-voltage system, take safety precautions to prevent electrical shocks, such as wearing insulated gloves and removing the service plug grip. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.

  • After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.

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    Tech Tips

    Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

  • When disposing of an HV battery, make sure to return it through an authorized collection agent who is capable of handling it safely. If the HV battery is returned via the manufacturer specified route, it will be returned properly and in a safe manner by an authorized collection agent.

Note

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

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Tech Tips

After the repair, clear the DTCs, perform the following operations, and check that no DTCs (including pending DTCs) are output.


  1. Drive the vehicle on urban roads for approximately 10 minutes.

PROCEDURE


  1. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Check and record any HV system DTCs, INF codes and freeze frame data.

    5. Read output DTCs.


      Powertrain > Hybrid Control > Trouble Codes
      Result
      Result Proceed to
      Only DTC P0AC0-123 is output or DTC P0AC0-123 and DTCs other than those in the following table are output. A
      Any of the DTCs in the following table are output at the same time. B
      Relevant DTC
      P0A95-123 High Voltage Fuse
      P0ABF-123 Hybrid Battery Pack Current Sensor Circuit
      P0AC1-123 Hybrid Battery Pack Current Sensor Circuit Low
      P0AC2-123 Hybrid Battery Pack Current Sensor Circuit High
      P0AFC-123 Hybrid Battery Pack Sensor Module
      P0B3D-123, P0B42-123, P0B47-123, P0B4C-123, P0B51-123, P0B56-123, P0B5B-123, P0B60-123, P0B65-123, P0B6A-123, P0B6F-123, P0B74-123, P0B79-123, P0B7E-123, P0B83-123, P0B88-123, P0B8D-123, P0B92-123 Hybrid Battery Voltage Sensor "A - R" Circuit Low

    6. Turn the power switch off.

    7. Disconnect the GTS from the DLC3.


    B

    GO TO DTC CHART (HYBRID BATTERY SYSTEM) Click here

    A

  2. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

      Note

      Do not turn the power switch on (READY).

    3. Enter the following menus: Powertrain / Hybrid Control / Data List / Battery Block Vol -V01 to V17.


      Powertrain > Hybrid Control > Data List
      Tester Display
      Battery Block Vol -V01
      Battery Block Vol -V02
      Battery Block Vol -V03
      Battery Block Vol -V04
      Battery Block Vol -V05
      Battery Block Vol -V06
      Battery Block Vol -V07
      Battery Block Vol -V08
      Battery Block Vol -V09
      Battery Block Vol -V10
      Battery Block Vol -V11
      Battery Block Vol -V12
      Battery Block Vol -V13
      Battery Block Vol -V14
      Battery Block Vol -V15
      Battery Block Vol -V16
      Battery Block Vol -V17

      Note

      Select "Battery Block Vol -V01 to V17" only. (Do not select any other Data List items.)

    4. Check the voltage of each "Battery Block Vol" of "Battery Block Vol -V01 to V17" in the Data List with the power switch on (IG).

      B002KQAE04
      Specified Condition
      Any "Battery Block Vol" changes by 0.3 V or more, 60 seconds after the power switch is turned on (IG). (The difference between the maximum and minimum voltage is 0.3 V or more.)
      Result
      Result Proceed to
      The change in voltage of any "Battery Block Vol" is 0.3 V or more. A
      Other than above B

    5. Turn the power switch off.

    6. Disconnect the GTS from the DLC3.


    A

    REPLACE BATTERY VOLTAGE SENSOR Click here

    B

    REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY Click here