HYBRID BATTERY SYSTEM, Diagnostic DTC:P0A97-123

DTC Code DTC Name
P0A97-123 Hybrid Battery Pack Cooling Fan 2 Performance / Stuck OFF

DESCRIPTION


DTC No. INF Code DTC Detection Condition Trouble Area
P0A97 123 The speed of the battery cooling blower assembly (No. 1) is not within the specified range (1 trip detection/2 trip detection)

  • Battery cooling blower assembly (No. 1)

  • Battery smart unit

  • Power management control ECU

  • No. 1 hybrid battery intake duct

  • No. 2 hybrid battery intake duct

  • Wire harness or connector

Tech Tips

The above DTC can be stored while the battery cooling blower assembly operates. When performing a reproduction test, drive the vehicle until "Temp of batt TB7to12" is stored in the Freeze Frame Data and then start the battery cooling blower assembly. This DTC is not detected when performing an Active Test of "Driving the Battery Cooling Fan".

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0A84-123 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.

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 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

  2. CHECK DUCT AND BLOWER


    1. Remove the rear deck trim cover Click here.

    2. Remove the rear seat cushion assembly Click here.

    3. A0042CUE01
      Text in Illustration
      *1 No. 2 Hybrid Battery Intake Duct
      *2 No. 1 Hybrid Battery Intake Duct
      *3 Battery Cooling Blower Assembly

      Check that the No. 1 hybrid battery intake duct, No. 2 hybrid intake duct and battery cooling blower are not disconnected, damaged, or clogged with foreign objects, and that the acoustical materials have not peeled.

      OK
      The duct and blower are not disconnected, damaged, or clogged with foreign objects and the acoustical materials have not peeled.

    4. Install the rear seat cushion assembly.

    5. Install the rear deck trim cover.


    NG

    CORRECT THE PROBLEM

    OK

  3. CLEAR DTC (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. Clear the DTCs and freeze frame data Click here.

    5. Perform a road test to charge and discharge the HV battery.

      Tech Tips

      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 GTS from the DLC3.

    7. Turn the power switch off.


    NEXT

  4. CHECK BATTERY COOLING BLOWER ASSEMBLY (NO. 1)


    1. Remove the rear deck trim cover Click here.

    2. Connect the GTS to the DLC3.

    3. Turn the power switch on (IG).

    4. Enter the following menu items: Powertrain / Hybrid Control / Active Test / Driving the Battery Cooling Fan.

      Note

      If the active test cannot be performed, skip it and proceed to the next step to check the Data List values (VMF Fan Motor Voltage 1, VMF Fan Motor Voltage 2). In accordance with fail-safe system operation, the power management control ECU sends a command to operate the battery cooling fan.

    5. Select each air volume mode (1 to 6) in the Battery Cooling Fan active test to operate the battery cooling blower assembly.

    6. Enter the following menus: All Data / VMF Fan Motor Voltage 1, VMF Fan Motor Voltage 2.

    7. Check that the Data List value (VMF Fan Motor Voltage 1) is abnormal while operating the cooling fans (battery cooling blower assemblies). (*1)

    8. Turn the power switch off.

    9. A0041Q1E01
      Text in Illustration
      *1 Battery Cooling Blower Assembly (No. 0)
      *2 Battery Cooling Blower Assembly (No. 1)

      Switch the battery cooling blower assembly (No. 0) with one of the battery cooling blower assembly (No. 1).

    10. Turn the power switch on (IG).

    11. Enter the following menu items: Powertrain / Hybrid Control / Active Test / Driving the Battery Cooling Fan.

      Note

      If the active test cannot be performed, skip it and proceed to the next step to check the Data List values (VMF Fan Motor Voltage 1, VMF Fan Motor Voltage 2). In accordance with fail-safe system operation, the power management control ECU sends a command to operate the battery cooling fan.

    12. Select each air volume mode (1 to 6) in the Battery Cooling Fan active test to operate the battery cooling blower assembly.

    13. Enter the following menus: All Data / VMF Fan Motor Voltage 1, VMF Fan Motor Voltage 2.

    14. Check if the blower assembly (from *1 above) malfunctions in a different location while operating the cooling fans (battery cooling blower assemblies) using the Active Test.

      Result
      Result Proceed to
      Malfunction is not reproduced in same blower when it is moved to another location A
      Malfunction is reproduced in same blower when it is moved to another location B

    15. Disconnect the GTS from the DLC3.

    16. Turn the power switch off.

    17. Return the battery cooling blower assemblies to their original positions.


    B

    REPLACE BATTERY COOLING BLOWER ASSEMBLY (NO. 1) Click here

    A

  5. CHECK HARNESS AND CONNECTOR (BATTERY COOLING BLOWER ASSEMBLY (NO. 1) - POWER MANAGEMENT CONTROL ECU)


    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 rear deck trim cover Click here.

    3. Disconnect the S18 battery cooling blower assembly (No. 1) connector.

    4. Disconnect the A20 power management control ECU connector Click here.

    5. A0040XKE26
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Battery Cooling Blower Assembly (No. 1))
      *b

      Rear view of wire harness connector

      (to Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Specified Condition
      S18-3 (SI1) or A20-28 (SI02) - Body ground 10 kΩ or higher
      S18-3 (SI1) - A20-28 (SI02) Below 1 Ω

    6. Reconnect the S18 battery cooling blower assembly (No. 1) connector.

    7. Install the rear deck trim cover.

    8. Reconnect the A20 power management control ECU connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK POWER MANAGEMENT CONTROL ECU (GROUND SHORT CHECK)


    1. Remove the power management control ECU Click here.

    2. A0042HRE20
      Text in Illustration
      *a

      Component without harness connected

      (Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A20-28 (SI02) - L5-5 (E01) Power switch off 10 kΩ or higher
      A20-28 (SI02) - L6-5 (E02) Power switch off 10 kΩ or higher

    3. Install the power management control ECU.


    NG

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    OK

  7. 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 vehicle battery shield panel Click here.

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

    4. A0043YOE02

      Disconnect the u2 and c5 battery smart unit connectors.

    5. A0043C3E03
      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.
      u2-21 (TB6) - u2-9 (GB6) 6
      u2-22 (TB7) - u2-10 (GB7) 7
      u2-13 (TB8) - u2-1 (GB8) 8
      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. A0043HOE03
      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
      u2-21 (TB6) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      u2-21 (TB6) - c5- 6 (AM) Power switch off 10 kΩ or more
      u2-21 (TB6) - c5- 9 (GND) Power switch off 10 kΩ or more
      u2-9 (GB6) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      u2-9 (GB6) - c5- 6 (AM) Power switch off 10 kΩ or more
      u2-9 (GB6) - c5- 9 (GND) Power switch off 10 kΩ or more
      u2-22 (TB7) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      u2-22 (TB7) - c5- 6 (AM) Power switch off 10 kΩ or more
      u2-22 (TB7) - c5- 9 (GND) Power switch off 10 kΩ or more
      u2-10 (GB7) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      u2-10 (GB7) - c5- 6 (AM Power switch off 10 kΩ or more
      u2-10 (GB7) - c5- 9 (GND) Power switch off 10 kΩ or more
      u2-13 (TB8) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      u2-13 (TB8) - c5- 6 (AM) Power switch off 10 kΩ or more
      u2-13 (TB8) - c5- 9 (GND) Power switch off 10 kΩ or more
      u2-1 (GB8) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      u2-1 (GB8) - c5- 6 (AM) Power switch off 10 kΩ or more
      u2-1 (GB8) - c5- 9 (GND) Power switch off 10 kΩ or more

    7. Reconnect the u2 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. 3 HYBRID VEHICLE SUPPLY STACK SUB-ASSEMBLY Click here

    OK

  8. CHECK HARNESS AND CONNECTOR ((BATTERY TEMPERATURE SENSOR)

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    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 upper hybrid battery cover sub-assembly Click here.

    3. A0043YOE02

      Disconnect the u2 and c5 battery smart unit connectors.

    4. A004246E01

      Disconnect the connector B.

    5. A0041J8E01
      Text in Illustration
      *a

      Front view of No. 4 hybrid vehicle supply stack sub-assembly connector

      (Intermediate wire harness connector)

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

      Tester Connection
      Tester Connection Battery Temperature Sensor No.
      B-6 (TB9) - B-1 (GB9) 9
      B-7 (TB10) - B-2 (GB10) 10
      B-8 (TB11) - B-3 (GB11) 11
      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. A00444YE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Battery Smart Unit)
      *b

      Front view of No. 4 hybrid vehicle supply stack sub-assembly connector

      (Intermediate wire harness connector)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B-6 (TB9) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      B-6 (TB9) - c5-6 (AM) Power switch off 10 kΩ or more
      B-6 (TB9) - c5- 9 (GND) Power switch off 10 kΩ or more
      B-1 (GB9) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      B-1 (GB9) - c5- 6 (AM) Power switch off 10 kΩ or more
      B-1 (GB9) - c5- 9 (GND) Power switch off 10 kΩ or more
      B-7 (TB10) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      B-7 (TB10) - c5- 6 (AM) Power switch off 10 kΩ or more
      B-7 (TB10) - c5- 9 (GND) Power switch off 10 kΩ or more
      B-2 (GB10) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      B-2 (GB10) - c5- 6 (AM) Power switch off 10 kΩ or more
      B-2 (GB10) - c5- 9 (GND) Power switch off 10 kΩ or more
      B-8 (TB11) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      B-8 (TB11) - c5- 6 (AM) Power switch off 10 kΩ or more
      B-8 (TB11) - c5- 9 (GND) Power switch off 10 kΩ or more
      B-3 (GB11) - c5- 12 (IGCT) Power switch off 10 kΩ or more
      B-3 (GB11) - c5- 6 (AM) Power switch off 10 kΩ or more
      B-3 (GB11) - c5- 9 (GND) Power switch off 10 kΩ or more

    7. Reconnect the connector B.

    8. Install the No. 1 hybrid vehicle battery carrier bracket sub-assembly.


    NG

    REPLACE NO. 4 HYBRID VEHICLE SUPPLY STACK SUB-ASSEMBLY Click here

    OK

  9. 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 vehicle battery shield panel Click here.

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

    4. A0043YOE02

      Disconnect the u2 and c5 battery smart unit connectors.

    5. A0043C3E04
      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.
      u2-14 (TB9) - u2-2 (GB9) 9
      u2-15 (TB10) - u2-3 (GB10) 10
      u2-17 (TB11) - u2-5 (GB11) 11
      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. A0043HOE04
      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
      u2-14 (TB9) - c5- 12 (IGCT) Power switch off 10 kΩ or higher
      u2-14 (TB9) - c5- 6 (AM) Power switch off 10 kΩ or higher
      u2-14 (TB9) - c5- 9 (GND) Power switch off 10 kΩ or higher
      u2-2 (GB9) - c5- 12 (IGCT) Power switch off 10 kΩ or higher
      u2-2 (GB9) - c5- 6 (AM) Power switch off 10 kΩ or higher
      u2-2 (GB9) - c5- 9 (GND) Power switch off 10 kΩ or higher
      u2-15 (TB10) - c5- 12 (IGCT) Power switch off 10 kΩ or higher
      u2-15 (TB10) - c5- 6 (AM) Power switch off 10 kΩ or higher
      u2-15 (TB10) - c5- 9 (GND) Power switch off 10 kΩ or higher
      u2-3 (GB10) - c5- 12 (IGCT) Power switch off 10 kΩ or higher
      u2-3 (GB10) - c5- 6 (AM) Power switch off 10 kΩ or higher
      u2-3 (GB10) - c5- 9 (GND) Power switch off 10 kΩ or higher
      u2-17 (TB11) - c5- 12 (IGCT) Power switch off 10 kΩ or higher
      u2-17 (TB11) - c5- 6 (AM) Power switch off 10 kΩ or higher
      u2-17 (TB11) - c5- 9 (GND) Power switch off 10 kΩ or higher
      u2-5 (GB11) - c5- 12 (IGCT) Power switch off 10 kΩ or higher
      u2-5 (GB11) - c5- 6 (AM) Power switch off 10 kΩ or higher
      u2-5 (GB11) - c5- 9 (GND) Power switch off 10 kΩ or higher
      u2-23 (TC2) - c5- 12 (IGCT) Power switch off 10 kΩ or higher
      u2-23 (TC2) - c5- 6 (AM) Power switch off 10 kΩ or higher
      u2-23 (TC2) - c5- 9 (GND) Power switch off 10 kΩ or higher
      u2-11 (GC2) - c5- 12 (IGCT) Power switch off 10 kΩ or higher
      u2-11 (GC2) - c5- 6 (AM) Power switch off 10 kΩ or higher
      u2-11 (GC2) - c5- 9 (GND) Power switch off 10 kΩ or higher
      u2-24 (TC3) - c5- 12 (IGCT) Power switch off 10 kΩ or higher
      u2-24 (TC3) - c5- 6 (AM) Power switch off 10 kΩ or higher
      u2-24 (TC3) - c5- 9 (GND) Power switch off 10 kΩ or higher
      u2-12 (GC3) - c5- 12 (IGCT) Power switch off 10 kΩ or higher
      u2-12 (GC3) - c5- 6 (AM) Power switch off 10 kΩ or higher
      u2-12 (GC3) - c5- 9 (GND) Power switch off 10 kΩ or higher

    7. Reconnect the u2 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. 3 HYBRID VEHICLE SUPPLY STACK SUB-ASSEMBLY Click here

    OK

    REPLACE BATTERY SMART UNIT Click here