DTC    P0B3D-123    Hybrid Battery Voltage Sensor "A" Circuit Low

DTC    P0B42-123    Hybrid Battery Voltage Sensor "B" Circuit Low

DTC    P0B47-123    Hybrid Battery Voltage Sensor "C" Circuit Low

DTC    P0B4C-123    Hybrid Battery Voltage Sensor "D" Circuit Low

DTC    P0B51-123    Hybrid Battery Voltage Sensor "E" Circuit Low

DTC    P0B56-123    Hybrid Battery Voltage Sensor "F" Circuit Low

DTC    P0B5B-123    Hybrid Battery Voltage Sensor "G" Circuit Low

DTC    P0B60-123    Hybrid Battery Voltage Sensor "H" Circuit Low

DTC    P0B65-123    Hybrid Battery Voltage Sensor "I" Circuit Low

DTC    P0B6A-123    Hybrid Battery Voltage Sensor "J" Circuit Low

DTC    P0B6F-123    Hybrid Battery Voltage Sensor "K" Circuit Low

DTC    P0B74-123    Hybrid Battery Voltage Sensor "L" Circuit Low

DTC    P0B79-123    Hybrid Battery Voltage Sensor "M" Circuit Low

DTC    P0B7E-123    Hybrid Battery Voltage Sensor "N" Circuit Low

DTC    P0B83-123    Hybrid Battery Voltage Sensor "O" Circuit Low

DTC    P308A-123    Hybrid Battery Voltage Sensor All Circuits Low

for Preparation Click here


DESCRIPTION

  1. Refer to the description for DTC P0A80-123 (Click here).

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
P308A-123
Each battery block voltage becomes less than 2.5 V (open) (1 trip detection)
  1. Battery smart unit
  2. HV battery

HINT:
  1. Values smaller than 2.0 V may not be shown in the Data List because a fail-safe value is substituted.
  2. Hybrid battery voltage sensor in the DTC titles refers to the battery smart unit.


INSPECTION PROCEDURE

CAUTION:
  1. 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.
  2. 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).

HINT:
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

NOTICE:
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).

1.CHECK DTC OUTPUT (HV)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Enter the following menus: Powertrain / Hybrid Control / DTC.

  1. Check if DTCs are output.

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

  1. Turn the power switch off.



B
GO TO DTC CHART (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.

    NOTICE:
    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.



    A217836E16

  1. Check the connections of the g1 connector of the battery smart unit.

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



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.

  1. Turn the power switch on (IG).

  1. Enter the following menus: Powertrain / Hybrid Control / DTC.

  1. Clear the DTCs and freeze frame data (Click here).

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

  1. Disconnect the intelligent tester from the DLC3.


NEXT


5.RECONFIRM DTC OUTPUT (HV)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Enter the following menus: Powertrain / Hybrid Control / DTC.

  1. 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

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

  1. Disconnect the intelligent tester from the DLC3.



B
REPLACE HV BATTERY (Click here)
A

RETURN TO NORMAL OPERATION