HYBRID BATTERY SYSTEM, Diagnostic DTC:P0AD0-123

DTC Code DTC Name
P0AD0-123 Hybrid Battery Pack Cooling Fan 3 Performance / Stuck OFF

DESCRIPTION


DTC No. DTC Detection Condition Trouble Area
P0AD0-123 Speed of the battery cooling blower assembly (No. 2) is not within the specified range (1 trip detection)

  • Power management control ECU

  • Battery smart unit

  • Battery cooling blower assembly (No. 2)

  • Wire harness or connector

Tech Tips

Data List item VMF Battery Fan Voltage3 applies to battery cooling blower assembly (No. 2).

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

Tech Tips

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 for the time specified in the following table before disconnecting the cable from the negative (-) battery terminal.

Waiting Time before Disconnecting Cable from Negative (-) Battery Terminal
Specification Waiting Time
w/o Telematics transceiver 60 sec.
w/ Telematics transceiver 120 sec.

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 / Trouble Codes.

    4. Read output DTCs Click here.

      Result
      Result Proceed to
      P0AD0-123 only is output A
      P0AFC-123 is output B
      P0A84-123, P0A85-123, P0A99-123, P0A9A-123, P0AD2-123 and P0AD3-123 are output C

    5. Disconnect the intelligent tester from the DLC3.


    B

    GO TO DTC CHART

    C

    GO TO DTC CHART

    A

  2. CHECK BATTERY COOLING BLOWER ASSEMBLY (NO. 2)

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    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. A01ND3UE03

      Remove the battery cover and replace the battery cooling blower assembly (No. 2) with another battery cooling blower assembly Click here.

    4. Install the battery cover Click here.

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

    6. Connect the intelligent tester to the DLC3.

    7. Turn the power switch on (IG).

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

      Tech Tips

      When the power switch is turned on (IG) for the first time after reconnecting the battery, the battery cooling fans operate as an initial check. Therefore, even before the active test is performed, the malfunction may be reproduced as a result of the initial check.

    9. Check if the blower assembly malfunctions in a different location while operating the cooling fans (battery cooling blower assemblies).

      Result
      Result Proceed to
      The malfunction is reproduced in the same battery cooling blower. A
      The malfunction is reproduced in another battery cooling blower. B

    10. Disconnect the intelligent tester from the DLC3.

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


    B

    REPLACE BATTERY COOLING BLOWER ASSEMBLY (NO. 2) Click here

    A

  3. CHECK HARNESS AND CONNECTOR (BATTERY SMART UNIT - BATTERY COOLING BLOWER ASSEMBLY (NO. 2))

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    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 battery cover Click here.

    4. A01NF2NE03

      Disconnect the P50 connector from the battery cooling blower assembly (No. 2).

    5. Remove the battery smart unit Click here.

      Tech Tips

      Disconnect only the z29 connector of the battery smart unit.

    6. A01NELRE01
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to Battery Smart Unit)
      *2

      Front view of wire harness connector

      (to Battery Cooling Blower Assembly (No. 2))

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      z29-1(VM2) - P50-2(VM2) Power switch off Below 1 Ω

    7. Connect the P50 connector to the battery cooling blower assembly (No. 2).

    8. Install the battery smart unit Click here.

    9. Install the battery cover.

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


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - COOLING BLOWER (NO. 2))

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    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 battery cover Click here.

    4. A01NF2NE03

      Disconnect the P50 connector from the battery cooling blower assembly (No. 2).

    5. Disconnect the A80 connector from the power management control ECU.

      Tech Tips


    6. A01NGVQE05
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to Power Management Control ECU)
      *2

      Front view of wire harness connector

      (to Battery Cooling Blower Assembly (No. 2))

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

      Standard Resistance (Check for Open)
      Tester Connection Switch Condition Specified Condition
      A80-18(Sl2) - P50-3(Sl2) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Switch Condition Specified Condition
      P50-3(Sl2) - P50-4(GND2) Power switch off 10 kΩ or more
      P50-3(Sl2) - Body ground Power switch off 10 kΩ or more

    7. Connect the A80 connector to the power management control ECU.

      Tech Tips


    8. Connect the P50 connector to the battery cooling blower assembly (No. 2).

    9. Install the battery cover Click here.

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


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. READ VALUE USING INTELLIGENT TESTER (VM2 VOLTAGE)

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    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 battery cover Click here.

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

    5. Connect the intelligent tester to the DLC3.

    6. Using a service wire, connect terminals SI2 and GND2 of the battery cooling blower assembly connector.

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

    8. A01NHYHE03
      Text in Illustration
      *1

      Component with harness connected

      (Battery Cooling Blower Assembly (No. 2))

      While the cooling fans are operating, compare the value in the Data List (VMF Fan Motor Voltage 3) with the voltage value that was actually measured at the battery cooling blower assembly connector.

      Specified Condition
      Tester Connection Condition Specified Condition
      2 (VM2) - 4(GND2) Battery cooling blower is operating Difference between the value in the Data List (VMF Fan Motor Voltage 3) and the actual measurement value is 1 V or less.

      Note

      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.

      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    9. Turn the power switch off.

    10. Disconnect the intelligent tester from the DLC3.

    11. Install the battery cover Click here.


    B

    REPLACE POWER MANAGEMENT CONTROL ECU (for RHD) Click here

    C

    REPLACE BATTERY SMART UNIT Click here

    A

    REPLACE POWER MANAGEMENT CONTROL ECU (for LHD) Click here