HYBRID BATTERY SYSTEM, Diagnostic DTC:P0A82-123

DTC Code DTC Name
P0A82-123 Hybrid Battery Pack Cooling Fan 1 Performance / Stuck OFF

DESCRIPTION


DTC No. INF Code DTC Detection Condition Trouble Area
P0A82 123 The speed of the battery cooling blower assembly is not within the specified range (1 trip detection)

  • Battery cooling blower assembly

  • Battery smart unit

  • Power management control ECU

  • Intake duct

  • Wire harness or connector

  • Exhaust duct

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 TB1to6" 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.

CAUTION / NOTICE / HINT

CAUTION:


  • Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, 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.

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 FOR DTCS (HV)


    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. Turn the power switch off.


    B

    GO TO DTC CHART (P0AFC-123) Click here

    A

  2. CHECK DUCT AND BLOWER


    1. Remove the console box assembly Click here.

    2. Turn over the front floor carpet.

    3. A005DN9E02
      Text in Illustration
      *1 Intake Duct
      *2 Hybrid Cooling Blower Assembly
      *3 No. 2 Intake Duct
      *4 No. 4 Intake Duct
      *5 Exhaust Duct

      Check that the duct and battery cooling blower are not disconnected, damaged, or clogged with foreign matter, and that the acoustical materials have not peeled.

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

    4. Install the front floor carpet.

    5. Install the console box assembly.


    NG

    CORRECT THE PROBLEM

    OK

  3. CHECK HARNESS AND CONNECTOR (BATTERY COOLING BLOWER - BATTERY SMART UNIT)

    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 front seat assembly RH.


    3. Turn over the front floor carpet.

    4. Remove the No. 1 hybrid battery shield sub-assembly Click here.

    5. Disconnect the S30 battery cooling blower assembly connector.

    6. B005XEOE02

      Disconnect the L144 battery smart unit connector.

    7. B005Z0QE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Battery Cooling Blower Assembly)
      *b

      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
      S30-2 (VM0) - L144-8 (VM) Power switch off Below 1 Ω
      S30-2 (VM0) or L144-8 (VM) - Body ground Power switch off 10 kΩ or higher

    8. Connect the cable to the negative (-) auxiliary battery terminal.

    9. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      S30-2 (VM0) - Body ground Power switch on (IG) Below 1 V

      Note

      If the power switch is turned on (IG) with the connectors disconnected, other DTCs will be stored. Be sure to clear the DTCs after the inspection.

      Tech Tips

      As there might be an intermittent malfunction, inspect the following items even if the measured voltage is as specified.

      Check that each connector between the battery voltage sensor and battery cooling blower assembly is not loose or disconnected.

    11. Turn the power switch off.

    12. Disconnect the cable from the negative (-) auxiliary battery terminal.

    13. Reconnect the L144 battery smart unit connector.

    14. Reconnect the S30 battery cooling blower assembly connector.

    15. Install the No. 1 hybrid battery shield sub-assembly.

    16. Install the front floor carpet.

    17. Install the front seat assembly RH.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (BATTERY COOLING BLOWER - POWER MANAGEMENT CONTROL ECU)


    1. Remove the front seat assembly RH.


    2. Turn over the front floor carpet.

    3. Disconnect the S30 battery cooling blower assembly connector.

    4. Disconnect the A21 power management control ECU connector.

    5. B005YDHE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Battery Cooling Blower Assembly)
      *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 Condition Specified Condition
      S30-3 (SI0) - A21-29 (SI0) Power switch off Below 1 Ω
      S30-3 (SI0) or A21-29 (SI0) - Body ground Power switch off 10 kΩ or higher

    6. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      S30-3 (SI0) - Body ground Power switch on (IG) Below 1 V

      Note

      If the power switch is turned on (IG) with the connectors disconnected, other DTCs will be stored. Be sure to clear the DTCs after the inspection.

    8. Turn the power switch off.

    9. Reconnect the A21 power management control ECU connector.

    10. Reconnect the S30 battery cooling blower assembly connector.

    11. Install the front floor carpet.

    12. Install the front seat assembly RH.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Remove the power management control ECU Click here.

    2. A005E0ME02
      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
      A21-29 (SI0) - L5-5 (E01) Power switch off 10 kΩ or higher
      A21-29 (SI0) - 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

  6. READ VALUE USING GTS (VMF FAN MOTOR VOLTAGE)


    1. Remove the front seat assembly RH.


    2. Turn over the front floor carpet.

    3. Connect the cable to the negative (-) auxiliary battery terminal.

    4. Connect the GTS to the DLC3.

    5. Turn the power switch on (IG).

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

    7. Clear the DTCs and freeze frame data Click here.

    8. Enter the following menus: Powertrain / Hybrid Control / Active Test / Driving the Battery Cooling Fan.

    9. Enter the following menus: Powertrain / Hybrid Control / Data List / All Data / VMF Fan Motor Voltage 1.

    10. Select each air volume mode (1 to 6) in the "Driving the Battery Cooling Fan" Active Test to operate the battery cooling blower assembly.

      Note

      If the Active Test cannot be performed, skip it and proceed to the next step to check the frequency value. In accordance with fail-safe system operation, the hybrid vehicle control ECU assembly sends a command to operate the battery cooling fan assembly.

    11. B005XPQE02
      Text in Illustration
      *a

      Component with harness connected

      (Battery Cooling Blower Assembly)
      *b

      Rear view of wire harness connector

      (to Battery Cooling Blower Assembly)

      While the cooling fan is operating, compare the value in the Data List (Cooling Fan Frequency1) with the frequency value that was actually measured at the battery cooling blower assembly connector.

      Standard
      Tester Connection Condition
      S30-2 (VM0) - S30-4 (GND0) Battery cooling blower assembly is operating
      Result
      Result Proceed to
      The value in the Data List (VMF Fan Motor Voltage 1) and the actual measurement value at the battery cooling blower assembly connector are below 1 V. A
      Other than above. B

      Tech Tips

      Compare the values in each air volume mode (1 to 6). If the Active Test cannot be performed, compare the values only in the current air volume mode.

    12. Turn the power switch off.

    13. Install the front floor carpet.

    14. Install the front seat assembly RH.


    B

    CHECK BATTERY SMART UNIT (VOLTAGE) Click here

    A

  7. CHECK BATTERY SMART UNIT

    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 shield sub-assembly Click here.

    3. B005XEOE02

      Disconnect the L144 battery smart unit connector.

    4. Connect the cable to the negative (-) auxiliary battery terminal.

    5. Connect the GTS to the DLC3.

    6. Turn the power switch on (IG).

    7. Enter the following menus: Powertrain / Hybrid Control / Active Test / Driving the Battery Cooling Fan.

    8. Select air volume mode 6 in the "Driving the Battery Cooling Fan" Active Test to operate the battery cooling blower assembly.

      Note

      If the Active Test cannot be performed, skip it and proceed to the next step to check fan operates and air is sucked. In accordance with fail-safe system operation, the power management control ECU sends a command to operate the battery cooling fan.

    9. B005ZN5E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Battery Cooling Blower Assembly)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      L144-8 (VM) - L144-4 (GND) Battery cooling blower is operating 1 V or more

      Note

      If the power switch is turned on (IG) with the connectors disconnected, other DTCs will be stored. Be sure to clear the DTCs after the inspection.

    10. Turn the power switch off.

    11. Disconnect the cable from the negative (-) auxiliary battery terminal.

    12. Reconnect the L144 battery smart unit connector.

    13. Install the No. 1 hybrid battery shield sub-assembly.


    OK

    REPLACE BATTERY SMART UNIT Click here

    NG

    REPLACE BATTERY COOLING BLOWER ASSEMBLY Click here

  8. CHECK BATTERY SMART UNIT (VOLTAGE)


    1. Remove the front seat assembly RH.


    2. Turn over the front floor carpet.

    3. Connect the GTS to the DLC3.

    4. Turn the power switch on (IG).

    5. Enter the following menus: Powertrain / Hybrid Control / Active Test / Driving the Battery Cooling Fan.

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

    7. Select each air volume mode (1 to 6) in the "Driving the Battery Cooling Fan" Active Test to operate the battery cooling blower assembly.

      Note

      If the Active Test cannot be performed, skip it and proceed to the next step to check voltage. In accordance with fail-safe system operation, the power management control ECU sends a command to operate the battery cooling fan.

    8. B005XPQE02
      Text in Illustration
      *a

      Component with harness connected

      (Battery Cooling Blower Assembly)
      *b

      Front view of wire harness connector

      (to Battery Cooling Blower Assembly)

      While the cooling fan is operating, compare the value in the data list (VMF Fan Motor Voltage 1) with the voltage value that was actually measured at the battery cooling blower assembly connector.

      Standard
      Tester Connection Condition Specified Condition
      S30-2 (VM0) - S30-4 (GND0) Battery cooling blower is operating Difference between the value in the Data List (VMF Fan Motor Voltage 1) and the actual measurement value is 1 V or less.

      Tech Tips

      Compare the values in each air volume mode (1 to 6). If the active test cannot be performed, compare the values only in the current air volume mode.

    9. Turn the power switch off.

    10. Install the front floor carpet.

    11. Install the front seat assembly RH.


    OK

    REPLACE BATTERY COOLING BLOWER ASSEMBLY Click here

    NG

    REPLACE BATTERY SMART UNIT Click here