HYBRID BATTERY SYSTEM, Diagnostic DTC:P0A9C-123, P0AC6-123, P0ACB-123, P0AE9-123, P0BC3-123, P0C34-123, P3065-123, P306A-123

DTC Code DTC Name
P0A9C-123 Hybrid Battery Temperature Sensor "A" Range / Performance
P0AC6-123 Hybrid Battery Temperature Sensor "B" Range / Performance
P0ACB-123 Hybrid Battery Temperature Sensor "C" Range / Performance
P0AE9-123 Hybrid Battery Temperature Sensor "D" Range / Performance
P0BC3-123 Hybrid Battery Temperature Sensor "E" Range / Performance
P0C34-123 Hybrid Battery Temperature Sensor "F" Range / Performance
P3065-123 Hybrid Battery Temperature Sensor Range/Performance Stuck "A"
P306A-123 Hybrid Battery Temperature Sensor Range/Performance Stuck "B"

DESCRIPTION

Refer to the description for DTC P0A9D-123 Click here.

DTC Code DTC Detection Condition Trouble Area

P0A9C-123

P0AC6-123

P0ACB-123

P0AE9-123

P0BC3-123

P0C34-123

P3065-123

P306A-123

 When the battery temperature sensor performance is abnormal (1 trip detection/2 trip detection)

  • HV battery (Battery temperature sensor)

  • Battery smart unit

CAUTION / NOTICE / HINT

CAUTION:


  • Before inspecting the high-voltage system, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. 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 disconnecting 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.

Tech Tips

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

PROCEDURE


  1. CHECK FOR DTCS (DTC P0AFC-123 IS OUTPUT)


    1. Connect the intelligent tester 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
      Result Proceed to
      P0AFC-123 is not output. A
      P0AFC-123 is output. B

    B

    GO TO DTC (P0AFC-123) Click here

    A

  2. CHECK CONNECTOR CONNECTION CONDITION (BATTERY TEMPERATURE SENSOR)


    1. A000W2X

      Remove the HV battery Click here.

    2. Check the connection of the battery temperature sensor connector (intermediate connector).

      OK
      The connector is connected securely and there are no contact problems.

    NG

    CONNECT SECURELY

    OK

  3. CHECK CONNECTOR CONNECTION CONDITION (BATTERY SMART UNIT)

    CAUTION:

    Be sure to wear insulated gloves.


    1. A000XSV

      Check the connection of connector z87 of the battery smart unit.

      OK
      The connector is connected securely and there are no contact problems.

      Tech Tips

      For the removal and installation procedures related to the battery smart unit connector inspection, Click here.


    NG

    CONNECT SECURELY

    OK

  4. CHECK HV BATTERY (BATTERY TEMPERATURE SENSOR)

    CAUTION:

    Be sure to wear insulated gloves.


    1. Place the HV battery in the vehicle so that measurements can be made at the battery smart unit connector.

      Note

      Make sure all the covers are installed to the HV battery when placing it in the vehicle, and then remove the covers again after the HV battery is in place.

      Tech Tips


      • Follow the installation procedures to the point where the HV battery is set in the vehicle Click here.

      • Do not install the service plug grip.

    2. Reconnect all the connectors that were disconnected when the HV battery was removed.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the power switch on (IG).

    5. Select the following menu items: Powertrain / Hybrid Control / Data List / Temp of Batt TB 1 to 6.

      Tech Tips

      "Temp of Batt TB 1 to 6" in the Data List represents battery temperature sensors 0 to 5.

    6. Read the data list.

      Tech Tips


      • Record the 6 displayed "Temp of Batt TB" values (1 to 6) in order to compare the data list values with the values to be actually measured at connector z87 of the battery smart unit.

      • If the power switch is turned on (IG) with the service plug grip removed, DTC P0A0D-350 for the interlock switch system will be set. If this DTC is output, clear the DTC using the intelligent tester Click here.

    7. A000VS7E02
      *1 Rear view of wire harness connector: (to Battery Smart Unit)

      Disconnect the z87 battery smart unit connector.

    8. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Battery temperature sensor 0)
      Tester Connection Condition Specified Condition
      z87-7 (TB0) - z87-17 (GB0) Thermistor temperature: 0°C (32°F) 27.3 to 28.4 kΩ
      z87-7 (TB0) - z87-17 (GB0) Thermistor temperature: 25°C (77°F) 9.9 to 10.1 kΩ
      z87-7 (TB0) - z87-17 (GB0) Thermistor temperature: 40°C (104°F) 5.72 to 5.90 kΩ
      Standard Resistance (Battery temperature sensor 1)
      Tester Connection Condition Specified Condition
      z87-6 (TB1) - z87-16 (GB1) Thermistor temperature: 0°C (32°F) 27.3 to 28.4 kΩ
      z87-6 (TB1) - z87-16 (GB1) Thermistor temperature: 25°C (77°F) 9.9 to 10.1 kΩ
      z87-6 (TB1) - z87-16 (GB1) Thermistor temperature: 40°C (104°F) 5.72 to 5.90 kΩ
      Standard Resistance (Battery temperature sensor 2)
      Tester Connection Condition Specified Condition
      z87-5 (TB2) - z87-15 (GB2) Thermistor temperature: 0°C (32°F) 27.3 to 28.4 kΩ
      z87-5 (TB2) - z87-15 (GB2) Thermistor temperature: 25°C (77°F) 9.9 to 10.1 kΩ
      z87-5 (TB2) - z87-15 (GB2) Thermistor temperature: 40°C (104°F) 5.72 to 5.90 kΩ
      Standard Resistance (Battery temperature sensor 3)
      Tester Connection Condition Specified Condition
      z87-4 (TB3) - z87-14 (GB3) Thermistor temperature: 0°C (32°F) 27.3 to 28.4 kΩ
      z87-4 (TB3) - z87-14 (GB3) Thermistor temperature: 25°C (77°F) 9.9 to 10.1 kΩ
      z87-4 (TB3) - z87-14 (GB3) Thermistor temperature: 40°C (104°F) 5.72 to 5.90 kΩ
      Standard Resistance (Battery temperature sensor 4)
      Tester Connection Condition Specified Condition
      z87-3 (TB4) - z87-13 (GB4) Thermistor temperature: 0°C (32°F) 27.3 to 28.4 kΩ
      z87-3 (TB4) - z87-13 (GB4) Thermistor temperature: 25°C (77°F) 9.9 to 10.1 kΩ
      z87-3 (TB4) - z87-13 (GB4) Thermistor temperature: 40°C (104°F) 5.72 to 5.90 kΩ
      Standard Resistance (Battery temperature sensor 5)
      Tester Connection Condition Specified Condition
      z87-2 (TB5) - z87-12 (GB5) Thermistor temperature: 0°C (32°F) 27.3 to 28.4 kΩ
      z87-2 (TB5) - z87-12 (GB5) Thermistor temperature: 25°C (77°F) 9.9 to 10.1 kΩ
      z87-2 (TB5) - z87-12 (GB5) Thermistor temperature: 40°C (104°F) 5.72 to 5.90 kΩ

      Note

      If time passes after confirming the temperatures in the data list, the HV battery internal temperature may change.

    9. Compare the recorded "Temp of Batt TB" values and the actual measured values.

      OK
      There is almost no difference between the recorded "Temp of Batt TB" values and the actual measured values.

    OK

    REPLACE HV BATTERY Click here

    NG

    REPLACE BATTERY SMART UNIT Click here