Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Hybrid/EV Battery Current Sensor "A"/"B" Signal Compare Failure (P0B1362)

Toyota Corolla Cross (2022-2024) Service Manual / Engine & Hybrid System / Hybrid / Battery Control / Hybrid Battery System / Hybrid/EV Battery Current Sensor "A"/"B" Signal Compare Failure (P0B1362)

DESCRIPTION

Refer to the description for DTC P0ABF11.

Click here

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

Note

P0B1362

Hybrid/EV Battery Current Sensor "A"/"B" Signal Compare Failure

A battery current sensor is malfunctioning.*

(1 trip detection logic)

  • HV battery junction block assembly
  • Battery ECU assembly
  • Wire harness or connector

Comes on

Master Warning:

Comes on

SAE Code: P0B13

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

MONITOR DESCRIPTION

If the battery ECU assembly detects a malfunction in a battery current sensor, the battery ECU assembly will illuminate the MIL and store a DTC.

MONITOR STRATEGY

Related DTCs

P0B13 (INF P0B1362): Current sensor malfunction

Required sensors/components

Battery current sensor

Frequency of operation

Continuous

Duration

TMC's intellectual property

MIL operation

Immediately

Sequence of operation

None

TYPICAL ENABLING CONDITIONS

The monitor will run whenever the following DTCs are not stored

TMC's intellectual property

Other conditions belong to TMC's intellectual property

-

TYPICAL MALFUNCTION THRESHOLDS

TMC's intellectual property

-

COMPONENT OPERATING RANGE

Battery ECU assembly

DTC P0B13 (INF P0B1362) is not detected

CONFIRMATION DRIVING PATTERN

HINT:

  • 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.

    Click here

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here

  1. Connect the GTS to the DLC3.
  2. Turn the ignition switch to ON and turn the GTS on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off and wait for 2 minutes or more.
  5. Turn the ignition switch to ON and turn the GTS on.
  6. Drive the vehicle on urban roads for approximately 10 minutes.[*1]

    HINT:

    [*1]: Normal judgment procedure.

    The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

  7. Enter the following menus: Powertrain / HV Battery / Utility / All Readiness.
  8. Check the DTC judgment result.

    HINT:

    • 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 the normal judgment procedure again.

CAUTION / NOTICE / HINT

CAUTION:

Refer to the precautions before inspecting high voltage circuit.

Click here

NOTICE:

  • After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

    Click here

  • When disconnecting and reconnecting the auxiliary battery

    HINT:

    When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

    Click here

PROCEDURE

1.

CHECK DTC OUTPUT (HV BATTERY, HYBRID CONTROL)

(a) Check for DTCs.

Powertrain > HV Battery > Trouble Codes Powertrain > Hybrid Control > Trouble Codes

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

(b) Turn the ignition switch off.

B

GO TO DTC CHART (HYBRID BATTERY SYSTEM)

C

GO TO DTC CHART (HYBRID CONTROL SYSTEM)

A

2.

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

Click here

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

3.

REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY

Click here

NEXT

4.

CLEAR DTC (HV BATTERY)

(a) Clear the DTCs and freeze frame data.

Powertrain > HV Battery > Clear DTCs

(b) Drive the vehicle on urban roads for approximately 10 minutes.

NEXT

5.

CHECK DTC OUTPUT (HV BATTERY)

(a) Check for DTCs.

Powertrain > HV Battery > Trouble Codes

Result

Proceed to

DTCs are not output.

A

P0B1362 is also output.

B

(b) Turn the ignition switch off.

A

END

B

REPLACE BATTERY ECU ASSEMBLY

    READ NEXT:

     Hybrid/EV Battery State of Charge High (P0C3000)

    DESCRIPTION The battery ECU assembly monitors the operation of the hybrid battery system and will store this DTC if it detects a malfunction. DTC No. Detection Item DTC Detection Condit

     Hybrid/EV Battery Energy Control Module Hybrid/EV Battery Monitor Performance (P0E2D00)

    DESCRIPTION The battery ECU assembly detects the voltage of each HV battery cell. The battery ECU assembly monitors its internal HV battery cell voltage detection circuits to detect malfunctions. If t

     Hybrid Battery Stack 2 Cell Voltage Detection Voltage Out of Range (P1A001C,P301A1C)

    DESCRIPTION The HV battery is composed of 60 cells (3.7 V each) in series. The battery ECU assembly monitors the voltage of each HV battery cell to detect malfunctions of the HV battery. DTC No

    SEE MORE:

     Mayday Battery

    Removal REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL) Procedure Part Name Code 1 TELEMATICS TRANSCEIVER 86741A - - - 2 TRANSCEIVER COVER

     Outer Mirror Indicator (Module "A" Side) Circuit Short to Battery (C1AB512)

    DESCRIPTION This DTC is stored when the blind spot monitor sensor RH (A) detects a short to +B in the outer rear view mirror indicator RH. DTC No. Detection Item DTC Detection Condition Trouble Area C1AB512 Outer Mirror Indi

    © 2020-2024 Copyright www.tcorollacross.com