HYBRID BATTERY SYSTEM, Diagnostic DTC:P0B3D-123, P0B42-123, P0B47-123, P0B4C-123, P0B51-123, P0B56-123, P0B5B-123, P0B60-123, P0B65-123, P0B6A-123, P0B6F-123, P0B74-123, P0B79-123, P0B7E-123, P0B83-123, P0B88-123, P308A-123

DTC Code DTC Name
P0B3D-123 Hybrid Battery Voltage Sensor "A" Circuit Low
P0B42-123 Hybrid Battery Voltage Sensor "B" Circuit Low
P0B47-123 Hybrid Battery Voltage Sensor "C" Circuit Low
P0B4C-123 Hybrid Battery Voltage Sensor "D" Circuit Low
P0B51-123 Hybrid Battery Voltage Sensor "E" Circuit Low
P0B56-123 Hybrid Battery Voltage Sensor "F" Circuit Low
P0B5B-123 Hybrid Battery Voltage Sensor "G" Circuit Low
P0B60-123 Hybrid Battery Voltage Sensor "H" Circuit Low
P0B65-123 Hybrid Battery Voltage Sensor "I" Circuit Low
P0B6A-123 Hybrid Battery Voltage Sensor "J" Circuit Low
P0B6F-123 Hybrid Battery Voltage Sensor "K" Circuit Low
P0B74-123 Hybrid Battery Voltage Sensor "L" Circuit Low
P0B79-123 Hybrid Battery Voltage Sensor "M" Circuit Low
P0B7E-123 Hybrid Battery Voltage Sensor "N" Circuit Low
P0B83-123 Hybrid Battery Voltage Sensor "O" Circuit Low
P0B88-123 Hybrid Battery Voltage Sensor "P" Circuit Low
P308A-123 Hybrid Battery Voltage Sensor All Circuits Low

DESCRIPTION


DTC No. DTC Detection Condition Trouble Area

P0B3D-123

P0B42-123

P0B47-123

P0B4C-123

P0B51-123

P0B56-123

P0B5B-123

P0B60-123

P0B65-123

P0B6A-123

P0B6F-123

P0B74-123

P0B79-123

P0B7E-123

P0B83-123

P0B88-123

P308A-123

 Each battery block voltage becomes less than 2.5 V (open) (1 trip detection)

  • Battery smart unit

  • HV battery assembly

Tech Tips


  • Values smaller than 2.0 V may not be shown in the Data List because a fail-safe value is substituted.

  • Hybrid battery voltage sensor in the DTC titles refers to the battery smart unit.

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 (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 CONNECTOR CONNECTION CONDITION

    CAUTION:

    Be sure to wear insulated gloves.


    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. A01NFZCE05
      Text in Illustration
      *1 Battery Smart Unit

      Check the connections of the z25 connector of the battery smart unit.

      OK
      The connectors are connected securely and there are no contact problems.

    5. Install the battery cover Click here.

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


    NG

    CONNECT SECURELY

    OK

  3. REPLACE BATTERY SMART UNIT


    1. Replace the battery smart unit Click here.


    NEXT

  4. CLEAR DTC (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. Clear the DTCs and freeze frame data Click here.

    5. Perform a road test to charge and discharge the HV battery assembly.

    6. Disconnect the intelligent tester from the DLC3.


    NEXT

  5. RECONFIRM 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
      Battery voltage sensor DTCs for this diagnostic procedure are not output A
      Battery voltage sensor DTCs for this diagnostic procedure are output B

      Tech Tips

      Turning the power switch on (IG) with the service plug grip removed causes an interlock switch system DTC (P0A0D-350) to be set. Use the intelligent tester to clear the DTCs Click here.

    5. Disconnect the intelligent tester to the DLC3.


    B

    REPLACE HV BATTERY ASSEMBLY Click here

    A

    RETURNS TO NORMAL OPERATION