HYBRID BATTERY SYSTEM, Diagnostic DTC:P0AE9-123, P0BC3-123, P0C34-123, P306A-123

DTC Code DTC Name
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
P306A-123 Hybrid Battery Temperature Sensor Range / Performance Stuck "B"

DESCRIPTION

Refer to the Description for DTC P0A9C-123 Click here.

DTC No. INF Code DTC Detection Condition Trouble Area
P0AE9 123 When the battery temperature sensor performance is abnormal (1 trip detection/2 trip detection)

  • No. 2 hybrid vehicle supply stack sub-assembly

  • Battery smart unit
P0BC3
P0C34
P306A

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0A9C-123 Click here.

INSPECTION PROCEDURE

CAUTION:


  • Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly or electric vehicle charger assembly, turn the power switch off. Also, 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 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 Click here.

    Tech Tips

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

  • When disposing of HV batteries and hybrid vehicle supply stack sub-assemblies, make sure to return them through an authorized collection agent who is capable of handling them safely. If they are returned via the manufacturer specified route, they will be returned properly and in a safe manner by an authorized collection agent.

  • Before returning the HV battery, make sure to perform recovery inspection Click here.

  • Before returning the hybrid vehicle supply stack sub-assembly, make sure to perform recovery inspection Click here.

  • Make a note of the output DTCs as some of them may be necessary for recovery inspection of the HV battery and hybrid vehicle supply stack sub-assemblies.

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 Click here.

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. Read output DTCs.

      Result
      Result Proceed to
      P31AB-123, P1A61-123 ,P1A64-123, P1A67-123 is not output A
      P31AB-123, P1A61-123 ,P1A64-123, P1A67-12 is output B

    5. Disconnect the GTS from the DLC3.

    6. Turn the power switch off.


    B

    GO TO DTC CHART (HYBRID BATTERY SYSTEM) Click here

    A

  2. 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. Read output DTCs Click here.

      Result
      Result Proceed to
      P0AFC-123 is not output. A
      P0AFC-123 is also output. B

    5. Disconnect the GTS from the DLC3.


    B

    GO TO DTC CHART (P0AFC-123) Click here

    A

  3. CHECK HV BATTERY (BATTERY TEMPERATURE SENSOR)

    CAUTION:

    Be sure to wear insulated gloves.


    1. Check that the service plug grip is not installed.

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the No. 1 hybrid battery intake duct Click here.

    3. Remove the No. 1 hybrid vehicle battery shield panel Click here.

    4. A0042VEE02

      Disconnect the j2 and c5 battery smart unit connectors.

    5. A0041AWE05
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Battery Smart Unit)

      Measure the resistance of the circuit for the malfunctioning sensor (battery temperature sensor 0 to 2).

      Tester Connection
      Tester Connection Battery Temperature Sensor No.
      j2-7 (TB3) - j2-17 (GB3) 3
      j2-6 (TB4) - j2-16 (GB4) 4
      j2-5 (TB5) - j2-15 (GB5) 5
      Standard Resistance
      Thermistor Temperature Condition Specified Condition
      0 °C (32 °F) Power switch off 26.7 to 27.8 kΩ
      25 °C (77 °F) Power switch off 9.9 to 10.1 kΩ
      40 °C (104 °F) Power switch off 5.73 to 5.92 kΩ
    6. A0041SCE04
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Battery Smart Unit)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      j2-7 (TB3) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      j2-7 (TB3) - c5- 6 (AM) Power switch off 10 kΩ or more
      j2-7 (TB3) - c5- 9 (GND) Power switch off 10 kΩ or more
      j2-17 (GB3) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      j2-17 (GB3) - c5- 6 (AM) Power switch off 10 kΩ or more
      j2-17 (GB3) - c5- 9 (GND) Power switch off 10 kΩ or more
      j2-6 (TB4) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      j2-6 (TB4) - c5- 6 (AM) Power switch off 10 kΩ or more
      j2-6 (TB4) - c5- 9 (GND) Power switch off 10 kΩ or more
      j2-16 (GB4) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      j2-16 (GB4) - c5- 6 (AM) Power switch off 10 kΩ or more
      j2-16 (GB4) - c5- 9 (GND) Power switch off 10 kΩ or more
      j2-5 (TB5) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      j2-5 (TB5) - c5- 6 (AM) Power switch off 10 kΩ or more
      j2-5 (TB5) - c5- 9 (GND) Power switch off 10 kΩ or more
      j2-15 (GB5) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      j2-15 (GB5) - c5- 6 (AM) Power switch off 10 kΩ or more
      j2-15 (GB5) - c5- 9 (GND) Power switch off 10 kΩ or more
      j2-2 (TC0) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      j2-2 (TC0) - c5- 6 (AM) Power switch off 10 kΩ or more
      j2-2 (TC0) - c5- 9 (GND) Power switch off 10 kΩ or more
      j2-12 (GC0) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      j2-12 (GC0) - c5- 6 (AM) Power switch off 10 kΩ or more
      j2-12 (GC0) - c5- 9 (GND) Power switch off 10 kΩ or more
      j2-1 (TC1) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      j2-1 (TC1) - c5- 6 (AM) Power switch off 10 kΩ or more
      j2-1 (TC1) - c5- 9 (GND) Power switch off 10 kΩ or more
      j2-11 (GC1) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      j2-11 (GC1) - c5- 6 (AM) Power switch off 10 kΩ or more
      j2-11 (GC1) - c5- 9 (GND) Power switch off 10 kΩ or more

    7. Reconnect the j2 and c5 battery smart unit connectors.

    8. Install the No. 1 hybrid battery intake duct.

    9. Install the No. 1 hybrid vehicle battery shield panel.


    NG

    REPLACE NO. 2 HYBRID VEHICLE SUPPLY STACK SUB-ASSEMBLY Click here

    OK

    REPLACE BATTERY SMART UNIT Click here