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, P0B8D-123, P0B92-123, P0B97-123, P0B9C-123, P0BA1-123, 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
P0B8D-123 Hybrid Battery Voltage Sensor "Q" Circuit Low
P0B92-123 Hybrid Battery Voltage Sensor "R" Circuit Low
P0B97-123 Hybrid Battery Voltage Sensor "S" Circuit Low
P0B9C-123 Hybrid Battery Voltage Sensor "T" Circuit Low
P0BA1-123 Hybrid Battery Voltage Sensor "U" 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

P0B74

P0B79

P0B7E

P0B83

P0B88

P0B8D

P0B92

P0B97

P0B9C

P0BA1

P308A

 123 Each battery block voltage becomes less than 2.5 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.

  • 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 removing the service plug grip, wait 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

    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 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 FOR DTCS (HYBRID CONTROL)


    1. Connect the GTS 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 or P0A95-123 is not output. A
      P0AFC-123 or P0A95-123 is also output. B

    5. Turn the power switch off.

    6. Disconnect the GTS from the DLC3.


    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 power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

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

    3. A01FS7SE02

      Check the connections of the connector of the battery smart unit Click here.

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

    4. Install the No. 4 hybrid vehicle battery carrier bracket sub-assembly.


    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 GTS 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.

    6. Disconnect the GTS from the DLC3.


    NEXT

  5. RECONFIRM DTC OUTPUT (HV)


    1. Connect the GTS 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

    5. Turn the power switch off.

    6. Disconnect the GTS from the DLC3.


    B

    REPLACE HV BATTERY Click here

    A

    RETURN TO NORMAL OPERATION