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 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 disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals.

    Tech Tips

    Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

Note

After the power switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 60 seconds before disconnecting the cable from the negative (-) battery terminal.

PROCEDURE


  1. CHECK FOR DTCS (DTC P0AFC-123 IS OUTPUT)


    1. Connect the intelligent tester 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 intelligent tester from the DLC3.


    B

    GO TO DTC CHART

    A

  2. CHECK DUCT AND BLOWER


    1. Remove the upper hybrid battery cover sub-assembly Click here.

    2. A01JCUZE01
      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.

    3. Install the upper hybrid battery cover sub-assembly Click here.


    NG

    CORRECT THE PROBLEM

    OK

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


    1. Disconnect the cable from the negative (-) 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 the A21 connector from the power management control ECU Click here.

    4. Remove the No. 1 hybrid vehicle battery carrier bracket sub-assembly Click here.

    5. A01JBKD

      Disconnect the S14 connector from the battery cooling blower assembly.

    6. A01JALME01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Battery Cooling Blower Assembly)
      *2

      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
      S14-3 (SI0) or A21-29 (SI0) - Body ground 10 kΩ or higher
      S14-3 (SI0) - A21-29 (SI0) Below 1 Ω

    7. Connect the S14 connector to the battery cooling blower assembly.

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

    9. Connect the A21 connector to the power management control ECU Click here.

    10. Connect the cable to the negative (-) 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. A01JA0CE02
      Text in Illustration
      *1

      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
      A21-29 (SI0) - L5-5 (E01) 10 kΩ or higher
      A21-29 (SI0) - L6-5 (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. Disconnect the cable from the negative (-) 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. Remove the No. 1 hybrid vehicle battery carrier bracket sub-assembly Click here.

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

    5. Connect the intelligent tester to the DLC3.

    6. 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.

      • If the power switch is turned on (IG) with the service plug grip removed, DTC P0A0D-350 for the interlock switch system will be stored. If this DTC is output, clear the DTC using the intelligent tester Click here.

    7. 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.

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

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

    10. A01J9E5E01
      Text in Illustration
      *1

      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
      S14-2 (VM0) - S14-4 (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.

    11. Install the No. 1 hybrid vehicle battery carrier bracket sub-assembly Click here.


    NG

    REPLACE BATTERY SMART UNIT Click here

    OK

    REPLACE BATTERY COOLING BLOWER ASSEMBLY Click here