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, 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
P308A-123 Hybrid Battery Voltage Sensor All Circuits Low

DESCRIPTION


DTC No. INF Code DTC Detection Condition Trouble Area

P0B3D

P0B42

P0B47

P0B4C

P0B51

P0B56

P0B5B

P0B60

P0B65

P0B6A

P0B6F

P308A

 123 Each battery block voltage becomes less than 2.0 V (open) (1 trip detection)

  • Battery smart unit

  • HV battery

Tech Tips

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

CAUTION / NOTICE / HINT

CAUTION:


  • Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, turn the ignition switch off and 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.

  • When disposing of an HV battery, make sure to return it through an authorized collection agent who is capable of handling it safely. If the HV battery is returned via the manufacturer specified route, it will be returned properly and in a safe manner by an authorized collection agent.

Note

After turning the ignition 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 FOR DTCS (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Read output DTCs Click here.

      Result
      Result Proceed to
      P0AFC-123 or P0A95-123 is not output. A
      P0AFC-123 or P0A95-123 is also output. B

    5. Turn the ignition switch off.


    B

    GO TO DTC CHART (HYBRID BATTERY SYSTEM) Click here

    A

  2. CHECK CONNECTOR CONNECTION CONDITION

    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 ignition switch to ON (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the No. 1 hybrid battery shield sub-assembly Click here.

    3. A004FHLE03

      Check the connections of the battery smart unit connector.

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

    4. Install the No. 1 hybrid battery shield sub-assembly.


    NG

    CONNECT SECURELY

    OK

  3. REPLACE BATTERY SMART UNIT

    Click here


    NEXT

  4. CLEAR DTC (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON (IG).

    3. Check that the shift lever is in P.

    4. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    5. Clear the DTCs and freeze frame data Click here.

    6. Turn the ignition switch off.

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


    NEXT

  5. RECONFIRM DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Read output DTCs Click here.

      Result
      Result Proceed to
      HV battery temperature sensor DTCs for this diagnostic procedure are not output A
      HV battery temperature sensor DTCs for this diagnostic procedure are output B

      Note

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

    5. Turn the ignition switch off.


    A

    RETURN TO NORMAL OPERATION

    B

    REPLACE HV BATTERY Click here