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HYBRID BATTERY SYSTEM, Diagnostic DTC:P0B1362

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DTC Code DTC Name
P0B1362 Hybrid/EV Battery Current Sensor "A"/"B" Signal Compare Failure
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DESCRIPTION

Refer to the description for DTC P0ABF11.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0B1362 Hybrid/EV Battery Current Sensor "A"/"B" Signal Compare Failure

A battery current sensor is malfunctioning. *1

(1 trip detection logic)

  • HV battery junction block assembly

  • Battery ECU assembly

 Comes on

Master Warning Light:

Comes on

*1: The difference in output of the main and sub battery current sensors is large.

Table 1. Related Data List
DTC No. Data List
P0B1362 Hybrid Battery Current
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CONFIRMATION DRIVING PATTERN

Tip:

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

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  1. Connect the GTS to the DLC3.

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

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

  4. Turn the power switch off and wait for 2 minutes or more.

  5. Turn the power switch on (IG) and turn the GTS on.

  6. Drive the vehicle on urban roads for approximately 10 minutes.

  7. Enter the following menus: Powertrain / HV Battery / Utility / All Readiness.

  8. Check the DTC judgment result.

    Tip:

    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE, perform driving pattern again.

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CAUTION / NOTICE / HINT

CAUTION:

  • B004STG

    Before the following operations are conducted, take precautions to prevent electric shock by turning the power switch off, wearing insulated gloves, and removing the service plug grip from HV battery.


    • Inspecting the high-voltage system

    • Disconnecting the low voltage connector of the inverter with converter assembly

    • Disconnecting the low voltage connector of the HV battery

  • B004Y5N

    To prevent electric shock, make sure to remove the service plug grip to cut off the high voltage circuit before servicing the vehicle.

  • B004SX1

    After removing the service plug grip from the HV battery, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.

  • B004W3JC06
    *a Without waiting for 10 minutes

    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.

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    Tip:

    Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and the electric vehicle charger assembly.

  • Make sure to insulate the high-voltage connectors and terminals of the HV battery with insulating tape after removing it.

    If the HV battery stored without insulating the connectors and terminals, electric shock or fire may result.

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.

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PROCEDURE


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    CHECK DTC OUTPUT (HV BATTERY, HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

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

    4. Check for DTCs.


      1. Powertrain > HV Battery > Trouble Codes



      1. Powertrain > Hybrid Control > Trouble Codes


      Result
      Result Proceed to
      "P0B1362" only is output, or DTCs except the ones in the table below are also output. A
      DTCs of hybrid battery system in the table below are output. B
      DTCs of hybrid control system in the table below are output. C
      System Relevant DTC
      Hybrid battery system P060A47 Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure
      P060B49 Hybrid/EV Battery Energy Control Module A/D Processing Internal Electronic Failure
      P060687 Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message
      Hybrid control system P0A1F94 Hybrid/EV Battery Energy Control Module Unexpected Operation

    5. Turn the power switch off.


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    CHECK HARNESS AND CONNECTOR (BATTERY ECU ASSEMBLY - HV BATTERY JUNCTION BLOCK ASSEMBLY)

    Result
    Proceed to
    OK
    NG
    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    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 upper No. 1 hybrid battery cover sub-assembly.

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    3. B004V2KN04

      Disconnect the e4 battery ECU assembly connector.

      Note:

      Before disconnecting the connector, check that it is not loose or disconnected.

    4. B004XPQN04

      Disconnect the e1 battery current sensor connector from the HV battery junction block assembly.

      Note:

      Before disconnecting the connector, check that it is not loose or disconnected.

    5. B004UNQC04
      *a

      Front view of wire harness connector

      (to HV Battery Junction Block Assembly (Battery Current Sensor))
      *b

      Rear view of wire harness connector

      (to Battery ECU Assembly)

      Measure the resistance according to the value(s) in the tables below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      e4-19(VIB) - e1-1(VIB) Always Below 1 Ω
      e4-38(IB1) - e1-2(IB1) Always Below 1 Ω
      e4-37(GIB) - e1-3(GIB) Always Below 1 Ω
      e4-18(IB0) - e1-4(IB0) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      e4-19(VIB) or e1-1(VIB) - Body ground and other terminals Always 10 kΩ or higher
      e4-38(IB1) or e1-2(IB1) - Body ground and other terminals Always 10 kΩ or higher
      e4-37(GIB) or e1-3(GIB) - Body ground and other terminals Always 10 kΩ or higher
      e4-18(IB0) - e1-4(IB0) - Body ground and other terminals Always 10 kΩ or higher

    6. Reconnect the e1 battery current sensor connector to the HV battery junction block assembly.

    7. Reconnect the e4 battery ECU assembly connector.

    8. Install the upper No. 1 hybrid battery cover sub-assembly.

      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS AND CONNECTOR

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    REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY

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    Result
    Proceed to
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