HYBRID BATTERY SYSTEM, Diagnostic DTC:P0A9C-123, P0AC6-123, P0ACB-123, P3065-123

DTC Code DTC Name
P0A9C-123 Battery Temperature Sensor "A" Range / Performance
P0AC6-123 Battery Temperature Sensor "B" Range / Performance
P0ACB-123 Battery Temperature Sensor "C" Range / Performance
P3065-123 Battery Temperature Sensor Range / Performance Stuck "A"

DESCRIPTION

Refer to the description for DTC P0A9D-123.

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DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
P0A9C-123 Battery Temperature Sensor "A" Range / Performance

The performance of battery temperature sensor 0 is abnormal and its output is stuck.

(2 trip detection logic)

  • Battery voltage sensor

  • EV battery

  • Wire harness or connector

Master Warning Light:

Comes on
P0AC6-123 Battery Temperature Sensor "B" Range / Performance

The performance of battery temperature sensor 1 is abnormal and its output is stuck.

(2 trip detection logic)

  • Battery voltage sensor

  • EV battery

  • Wire harness or connector

Master Warning Light:

Comes on
P0ACB-123 Battery Temperature Sensor "C" Range / Performance

The performance of battery temperature sensor 2 is abnormal and its output is stuck.

(2 trip detection logic)

  • Battery voltage sensor

  • EV battery

  • Wire harness or connector

Master Warning Light:

Comes on
P3065-123 Battery Temperature Sensor Range / Performance Stuck "A"

The performance of any battery temperature sensor is abnormal, and the difference in output between it and other battery temperature sensors is excessively large.

(1 trip detection logic)

  • Battery voltage sensor

  • EV battery

  • Wire harness or connector

Master Warning Light:

Comes on
Related Data List
DTC No. Data List

  • P0A9C-123

  • P0AC6-123

  • P0ACB-123

  • P3065-123

 Temperature of Battery TB1 to TB3

The following items can be helpful when performing repairs:


Tech Tips

After leaving the vehicle for 1 day, the values of data monitor item "Temperature of Battery TB1 to TB3" should be equal to the outside temperature. Comparison of the values of "Temperature of Battery TB1 to TB3" at this time can be used to check for a malfunction.

WIRING DIAGRAM

B000ZK1E01

CAUTION / NOTICE / HINT

CAUTION:


  • B006JFB
    B006JM4

    Before the following operations are conducted, take precautions to prevent electric shock by turning the power switch off, wearing insulated gloves, and removing the service plug grips from both FC stack assembly and EV battery.


    • Inspecting the high-voltage system

    • Disconnecting the low voltage connector of the inverter with converter assembly

    • Disconnecting the low voltage connector of the EV battery

    • Disconnecting the low voltage connector of the FC stack assembly

    • Disconnecting the low voltage connector of the FC converter assembly

      Tech Tips

      No removal order is specified for the service plug grips of the FC stack assembly and EV battery.

  • B006JBZ

    After removing the service plug grip from the EV battery, 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 grip from the FC stack assembly, store it in a safe location and use the "HIGH-VOLTAGE, DO NOT TOUCH" sign to notify other technicians that you are working on the high-voltage system.

  • B000ZMTC04
    *a Without waiting for 10 minutes

    After removal of the service plug grips of both FC stack assembly and EV battery, wait for at least 10 minutes before touching the high-voltage connectors and 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

    At least 10 minutes are necessary to discharge the high-voltage capacitors inside the inverter with converter assembly and FC stack assembly.

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

  • When reinstalling the service plug grip to the FC stack assembly or the EV battery, slide the lever of the service plug until the letters "UNLOCK" are completely hidden, and insert it firmly.

    Click here

  • When the vehicle is parked with the power switch off, if the FC control ECU judges that the FC stack temperature will go below 0°C (32°F), it activates the FC air compressor, hydrogen pump and FC cooling water pump for a maximum of 180 seconds and drains water from the FC stack assembly. When performing inspection or repairs with the power switch off (not on (IG) or on (READY)), disconnect the cable from the negative (-) auxiliary battery terminal before performing work (If the auxiliary battery voltage is needed to conduct inspection, warm up the FC system beforehand).

Tech Tips


  • If DTC P0A9C-123, P0AC6-123 or P0ACB-123 is output, clear the DTCs, perform the following procedure, and check that the same DTC (including pending DTC) is not output after the repair.


    1. Drive the vehicle for approximately 10 minutes according to the freeze frame data items "Vehicle Speed", "Accelerator Degree", "Temperature of Battery TB1 to TB3" and "Power Resource IB".


      1. Check that the difference in output between each battery temperature sensor is not excessively large.

      2. Check that the output of each battery temperature sensor varies.

  • If DTC P3065-123 is output, clear the DTCs, perform the following procedure, and check that the same DTC is not output after the repair.


    1. Turn the power switch on (IG) and wait for 10 seconds or more.


      • Check that the difference in output between each battery temperature sensor is not excessively large.

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

PROCEDURE


  1. CHECK DTC OUTPUT (EV)

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

    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / EV / Trouble Codes.

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

    5. Read output DTCs.


      Powertrain > EV > Trouble Codes
      Result
      Result Proceed to
      P0AFC-123 is not output. A
      P0AFC-123 is also output. B

    6. Turn the power switch off.

    7. Disconnect the GTS from the DLC3.


    B

    GO TO DTC CHART (P0AFC-123) Click here

    A

  2. CHECK EV BATTERY (BATTERY TEMPERATURE SENSOR)

    CAUTION:

    Be sure to wear insulated gloves.


    1. Check that the service plug grip is not installed to FC stack assembly and EV battery.

      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 luggage compartment front trim cover.

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    3. Remove the rear seatback assembly.

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    4. Disconnect the battery voltage sensor connector.

      Note

      Before disconnecting the connector, check that it is not loose or disconnected.

    5. B000ZT9C03
      *a

      Rear view of wire harness connector

      (to Battery Voltage Sensor)

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

      Tester Connection
      Tester Connection Battery Temperature Sensor
      z16-4 (TB0) - z16-10 (GB0) 0
      z16-3 (TB1) - z16-9 (GB1) 1
      z16-2 (TB2) - z16-8 (GB2) 2

      Note

      When taking a measurement with a tester, do not apply excessive force to the tester probe to avoid damaging the holder.

      Standard Resistance
      Thermistor Temperature Switch 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. Measure the resistance according to the value(s) in the table below.

      B000ZSHC15
      *a

      Rear view of wire harness connector

      (to Battery Voltage Sensor)

      		 - -
      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      z16-4 (TB0) - P29-3 (IGCT) Power switch off 10 kΩ or higher
      z16-4 (TB0) - P29-6 (GND) Power switch off 10 kΩ or higher
      z16-10 (GB0) - P29-3 (IGCT) Power switch off 10 kΩ or higher
      z16-10 (GB0) - P29-6 (GND) Power switch off 10 kΩ or higher
      z16-3 (TB1) - P29-3 (IGCT) Power switch off 10 kΩ or higher
      z16-3 (TB1) - P29-6 (GND) Power switch off 10 kΩ or higher
      z16-9 (GB1) - P29-3 (IGCT) Power switch off 10 kΩ or higher
      z16-9 (GB1) - P29-6 (GND) Power switch off 10 kΩ or higher
      z16-2 (TB2) - P29-3 (IGCT) Power switch off 10 kΩ or higher
      z16-2 (TB2) - P29-6 (GND) Power switch off 10 kΩ or higher
      z16-8 (GB2) - P29-3 (IGCT) Power switch off 10 kΩ or higher
      z16-8 (GB2) - P29-6 (GND) Power switch off 10 kΩ or higher
      z16-1(TC0) - P29-3(IGCT) Power switch off 10 kΩ or higher
      z16-1(TC0) - P29-6(GND) Power switch off 10 kΩ or higher
      z16-7(GC0) - P29-3(IGCT) Power switch off 10 kΩ or higher
      z16-7(GC0) - P29-6(GND) Power switch off 10 kΩ or higher

      Note

      When taking a measurement with a tester, do not apply excessive force to the tester probe to avoid damaging the holder.

    7. Reconnect the battery voltage sensor connectors.

    8. Install the rear seatback assembly.

    9. Install the luggage compartment front trim cover.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BATTERY VOLTAGE SENSOR Click here

    NG

  3. CHECK HARNESS AND CONNECTOR (BATTERY TEMPERATURE SENSOR)

    CAUTION:

    Be sure to wear insulated gloves.


    1. Check that the service plug grip is not installed to FC stack assembly and EV battery.

      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 luggage compartment front trim cover.

      Click here

    3. Remove the rear seatback assembly.

      Click here

    4. Check the wire harness and connectors of the battery temperature sensor for abnormalities by sight and touch.

      Specified Condition
      There are no open or short circuits in the wire harness and connectors. There are no short circuits to other wire harnesses.

      Tech Tips

      As the battery harness is not available as a supply part, if the harness cannot be repaired, replace the EV battery.

    5. Install the luggage compartment front trim cover.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE EV BATTERY Click here

    NG

    REPAIR HARNESS OR CONNECTOR (BATTERY TEMPERATURE SENSOR)