HYBRID BATTERY SYSTEM, Diagnostic DTC:P0A82-123

DTC Code DTC Name
P0A82-123 Hybrid Battery Pack Cooling Fan 1

DESCRIPTION


DTC No. 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

  • HV battery intake duct

  • Wire harness or connector

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 to prevent electrical shocks, such as wearing insulated gloves and removing the service plug grip. 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 DTC OUTPUT (HV)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / DTC.

    4. Check if DTCs are output.

      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 Click here

    A

  2. CHECK DUCT AND BLOWER


    1. A003VABE01
      Text in Illustration
      *1 No. 1 Hybrid Battery Intake Duct

      Check that the No. 1 hybrid battery 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.

    NG

    CORRECT THE PROBLEM

    OK

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


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

    2. 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.

    3. Disconnect connector A19 from the power management control ECU Click here.

    4. A003W1YE02

      Disconnect connector Q14 from the battery cooling blower assembly.

    5. A003XZ9E05
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Battery Cooling Blower Assembly)
      *b

      Rear view of wire harness connector

      (Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Specified Condition
      Q14-3 (SI0) or A19-29 (SI0) - Body ground 10 kΩ or higher
      Q14-3 (SI0) - A19-29 (SI0) Below 1 Ω

      Note

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

    6. Connect the battery cooling blower assembly connector.

    7. Connect the power management control ECU connector Click here.

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


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Remove the power management control ECU Click here.

    2. A003V6BE07
      Text in Illustration
      *a

      Component without harness connected

      (to Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Specified Condition
      A19-29 (SI0) - H3-5 (E01) 10 kΩ or higher
      A19-29 (SI0) - H4-5 (E02) 10 kΩ or higher

    3. Install the power management control ECU Click here.


    NG

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    OK

  5. READ VALUE USING INTELLIGENT TESTER


    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. Connect the intelligent tester to the DLC3.

    3. Turn the power switch on (IG).

      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.

      • Turning the power switch on (IG) with the service plug grip removed causes an interlock switch system DTC to be set. Use the intelligent tester to clear the DTCs Click here.

    4. Enter the following menus: 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 voltage. In accordance with fail-safe system operation, the power management control ECU sends a command to operate the battery cooling fan.

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

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

    7. A003ZIFE12
      Text in Illustration
      *a

      Component with harness connected

      (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
      Q14-2 (VM0) - Q14-4 (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.


    NG

    REPLACE BATTERY SMART UNIT Click here

    OK

    REPLACE BATTERY COOLING BLOWER ASSEMBLY Click here