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. DTC Detection Condition Trouble Area
P0A82-123

The battery cooling blower assembly is malfunctioning and the actual speed is not within the specified range of the target speed calculated by the ECU.* (1 trip detection logic)

*: This DTC is not stored when "VMF Fan Motor Voltage" is too low or high.

  • Battery cooling blower assembly

  • Battery voltage sensor

  • Power management control ECU

  • Hybrid battery intake duct

  • Harness or connector
Related Data List
DTC No. Data List
P0A82-123

  • Cooling Fan 0

  • Cooling Fan Mode 1

  • Cooling Fan Frequency 1

Tech Tips

"Cooling Fan Frequency 1" is detected when the battery cooling blower assembly is operating and its value changes in proportion to the battery cooling blower assembly rotation speed.

WIRING DIAGRAM

Refer to the wiring diagram for DTC P0A84-123 Click here.

INSPECTION PROCEDURE

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 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.

Tech Tips


  • After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

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

    4. Turn the battery cooling blower assembly off, then operate it in fan mode 1 through 6.

  • Operation of the battery cooling blower can be confirmed by checking if air is sucked into the air intake port of the intake duct.

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
      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. 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 room partition pad Click here.

    3. Check that the No. 1 hybrid battery intake duct or No. 6 hybrid battery intake duct are not disconnected, damaged, or clogged with foreign matter.

      A01FVKFE01
      Text in Illustration
      *1 No. 1 Hybrid Battery Intake Duct *2 No. 6 Hybrid Battery Intake Duct

    4. Remove the front luggage compartment trim cover Click here.

    5. A01FQ0WE01
      Text in Illustration
      *1 No. 3 Hybrid Battery Intake Duct
      *2 Battery Cooling Blower Assembly

      Check that the No. 3 hybrid battery intake duct and battery cooling blower assembly are not disconnected, damaged, or clogged with foreign matter.

    6. Install the front luggage compartment trim cover.

    7. Install the No. 1 room partition pad.


    NG

    CORRECT THE PROBLEM

    OK

  3. CHECK HARNESS AND CONNECTOR (BATTERY VOLTAGE SENSOR - BATTERY COOLING BLOWER ASSEMBLY)

    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 upper hybrid battery cover sub-assembly Click here.

    3. Disconnect the m5 battery voltage sensor connector.

    4. Disconnect the X8 battery cooling blower assembly connector.

    5. A01FSTCE01
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Battery Voltage Sensor)
      *b

      Rear view of wire harness connector

      (to Battery Cooling Blower Assembly)

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

      Standard Resistance (Check for Open)
      Tester Connection Switch Condition Specified Condition
      m5-5 (FP0) - X8-2 (FP0) Power switch off Below 1 Ω
      m5-5 (FP0) or X8-2 (FP0) - Body ground Power switch off 10 kΩ or higher

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

    7. Turn the power switch on (IG).

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

      Standard Voltage:
      Tester Connection Switch Condition Specified Condition
      X8-2 (FP0) - 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.

    9. Turn the power switch off.

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

    11. Reconnect the X8 battery cooling blower assembly connector.

    12. Reconnect the m5 battery voltage sensor connector.

    13. Install the upper hybrid battery cover sub-assembly.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Remove the front luggage compartment trim cover Click here.

    2. Disconnect the N91 power management control ECU connector.

    3. Disconnect the X8 battery cooling blower assembly connector.

    4. A01FS6OE07
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)
      *b

      Rear view of wire harness connector

      (to Battery Cooling Blower Assembly)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      N91-17 (SI0) or X8-3 (SI0) - Body ground Power switch off 10 kΩ or higher
      N91-17 (SI0) - X8-3 (SI0) Power switch off Below 1 Ω

    5. Reconnect the X8 battery cooling blower assembly connector.

    6. Reconnect the N91 power management control ECU connector.

    7. Install the front luggage compartment trim cover.


    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. A01FVXUE24
      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 Switch Condition Specified Condition
      N91-17 (SI0) - N91-5 (E01) Power switch off 10 kΩ or higher
      N91-17 (SI0) - N92-5 (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. CHECK BATTERY VOLTAGE SENSOR (FREQUENCY)

    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 luggage compartment trim cover Click here.

    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 DTCs and freeze frame data.

      Note

      When DTCs are cleared, freeze frame data and INF codes are also cleared.

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

      Tester Display Measurement Item Control Range Restrict Condition
      Driving the Battery Cooling Fan Battery cooling blower assembly operation and blower volume can be checked The battery cooling blower assembly can be turned off or operated in fan mode 1 through 6 -

    9. Enter the following menus: All Data / Cooling Fan Frequency1.

    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 frequency. In accordance with fail-safe system operation, the power management control ECU sends a command to operate the battery cooling fan.

    11. A01FTMTE01
      Text in Illustration
      *a

      Component with harness connected

      (Battery Cooling Blower Assembly)
      *b

      Rear view of battery cooling blower assembly connector

      (to Wire Harness Connector)

      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 Specified Condition
      X8-2 (FP0) - X8-4 (GND0) Battery cooling blower assembly is operating Difference between the value in the Data List (Cooling Fan Frequency1) and the actual measurement value is 10 % or less.

      Note

      Turning the power switch on (IG) with the service grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.

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

    14. Install the front luggage compartment trim cover.


    NG

    REPLACE BATTERY VOLTAGE SENSOR Click here

    OK

    REPLACE BATTERY COOLING BLOWER ASSEMBLY Click here