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, 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
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

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.

MONITOR DESCRIPTION

If the battery smart unit detects voltage drop in a battery module, the power management control ECU will illuminate the MIL and set a DTC.

MONITOR STRATEGY

Related DTCs P0B3D (INF 123) / P0B42 (INF 123) / P0B47 (INF 123) / P0B4C (INF 123) / P0B51 (INF 123) / P0B56 (INF 123) / P0B5B (INF 123) / P0B60 (INF 123) / P0B65 (INF 123) / P0B6A (INF 123) / P0B6F (INF 123) / P0B74 (INF 123) / P0B79 (INF 123) / P0B7E (INF 123) / P0B83 (INF 123) / P0A88 (INF123) / P0A8D (INF123) / P0B92 (INF123) / P308A (INF 123): Battery voltage sensor circuit malfunction (open)
Required sensors / components Battery smart unit
Frequency of operation Continuous
Duration TMC's intellectual property
MIL operation TMC's intellectual property
Sequence of operation None

TYPICAL ENABLING CONDITIONS

The monitor will run whenever the following DTCs are not present TMC's intellectual property
Other conditions belong to TMC's intellectual property -

TYPICAL MALFUNCTION THRESHOLDS

TMC's intellectual property -

COMPONENT OPERATING RANGE

Battery smart unit DTC P0B3D (INF 123) / P0B42 (INF 123) / P0B47 (INF 123) / P0B4C (INF 123) / P0B51 (INF 123) / P0B56 (INF 123) / P0B5B (INF 123) / P0B60 (INF 123) / P0B65 (INF 123) / P0B6A (INF 123) / P0B6F (INF 123) / P0B74 (INF 123) / P0B79 (INF 123) / P0B7E (INF 123) / P0B83 (INF 123) / P0A88 (INF123) / P0A8D (INF123) / P0B92 (INF123) / P308A (INF 123) is not detected

CONFIRMATION DRIVING PATTERN

  1. Connect the Techstream to the DLC3.

  2. Turn the power switch on (IG) and turn the Techstream on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the power switch off.

  5. Turn the power switch on (READY) and turn the Techstream on.

  6. Perform the universal trip.

  7. Enter the following menus: Powertrain / HV / Trouble Codes.

  8. Check that permanent DTCs are cleared.

    Tech Tips

    • If a permanent DTC is output, the system is malfunctioning.

    • If no permanent DTC is output, the system is normal.

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 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

    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 DTC OUTPUT (HYBRID CONTROL)

    1. Connect the Techstream 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 Techstream from the DLC3.

    B

    GO TO DTC CHART (HYBRID BATTERY SYSTEM)

    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. 2 hybrid vehicle battery shield panel Click here.

    3. Check the connections of the z7 connector of the battery smart unit.

      A011YIWE01
      OK
      The connectors are connected securely and there are no contact problems.

    4. Install the No. 2 hybrid vehicle battery shield panel.

    NG

    CONNECT SECURELY

    OK

  3. REPLACE BATTERY SMART UNIT

    Click here

    NEXT

  4. CLEAR DTC (HV)

    1. Connect the Techstream 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 Techstream from the DLC3.

    NEXT

  5. RECONFIRM DTC OUTPUT (HV)

    1. Connect the Techstream 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 temperature sensor DTCs for this diagnostic procedure are not output A
      Battery temperature sensor DTCs for this diagnostic procedure are output B

      Note

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

    5. Turn the power switch off.

    6. Disconnect the Techstream from the DLC3.

    B

    REPLACE HV BATTERY Click here

    A

    RETURN TO NORMAL OPERATION