Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000001N33D
Model Year Start: 2021 Model: Corolla Prod Date Range: [04/2020 - 09/2022]
Title: HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): P0BE512,...,P0BED1F; Drive Motor "A" Phase U Current Sensor Circuit Short to Battery; 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]

DTC

P0BE512

Drive Motor "A" Phase U Current Sensor Circuit Short to Battery

DTC

P0BE514

Drive Motor "A" Phase U Current Sensor Circuit Short to Ground or Open

DTC

P0BE51F

Drive Motor "A" Phase U Current Sensor Circuit Intermittent

DTC

P0BE912

Drive Motor "A" Phase V Current Sensor Circuit Short to Battery

DTC

P0BE914

Drive Motor "A" Phase V Current Sensor Circuit Short to Ground or Open

DTC

P0BE91F

Drive Motor "A" Phase V Current Sensor Circuit Intermittent

DTC

P0BED12

Drive Motor "A" Phase W Current Sensor Circuit Short to Battery

DTC

P0BED14

Drive Motor "A" Phase W Current Sensor Circuit Short to Ground or Open

DTC

P0BED1F

Drive Motor "A" Phase W Current Sensor Circuit Intermittent

DTC SUMMARY

MALFUNCTION DESCRIPTION

These DTCs indicate that the current sensor value is abnormal. The cause of this malfunction may be one of the following:

Internal inverter malfunction

  • Inverter with converter assembly internal circuit malfunction

Inverter low-voltage circuit malfunction

  • The connectors are not connected properly

DESCRIPTION

The motor generator control ECU (MG ECU), which is built into the inverter with converter assembly, monitors the motor inverter current sensor. These DTCs indicate the malfunction of current sensors and do not indicate a malfunction of the high-voltage system.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P0BE512

Drive Motor "A" Phase U Current Sensor Circuit Short to Battery

Malfunction in motor inverter current sensor (phase U main sensor)

(Short to +B)

(1 trip detection logic)
  • Inverter with converter assembly
  • Wire harness or connector

Comes on

Master Warning:

Comes on

P0BE514

Drive Motor "A" Phase U Current Sensor Circuit Short to Ground or Open

Malfunction in motor inverter current sensor (phase U main sensor)

(Open or short to ground)

(1 trip detection logic)
  • Inverter with converter assembly
  • Wire harness or connector

Comes on

Master Warning:

Comes on

P0BE51F

Drive Motor "A" Phase U Current Sensor Circuit Intermittent

Short to +B, open or short to ground detected in motor inverter current sensor (phase U main sensor) when DTC P0C7917, P0D3319, P1C5D19 or P1C5F19 is stored.

(1 trip detection logic)
  • Inverter with converter assembly
  • Wire harness or connector

Does not come on

Master Warning:

Does not come on

P0BE912

Drive Motor "A" Phase V Current Sensor Circuit Short to Battery

Malfunction in motor inverter current sensor (phase V main sensor)

(Short to +B)

(1 trip detection logic)
  • Inverter with converter assembly
  • Wire harness or connector

Comes on

Master Warning:

Comes on

P0BE914

Drive Motor "A" Phase V Current Sensor Circuit Short to Ground or Open

Malfunction in motor inverter current sensor (phase V main sensor)

(Open or short to ground)

(1 trip detection logic)
  • Inverter with converter assembly
  • Wire harness or connector

Comes on

Master Warning:

Comes on

P0BE91F

Drive Motor "A" Phase V Current Sensor Circuit Intermittent

Short to +B, open or short to ground detected in motor inverter current sensor (phase V main sensor) when DTC P0C7917, P0D3319, P1C5D19 or P1C5F19 is stored.

(1 trip detection logic)
  • Inverter with converter assembly
  • Wire harness or connector

Does not come on

Master Warning:

Does not come on

P0BED12

Drive Motor "A" Phase W Current Sensor Circuit Short to Battery

Malfunction in motor inverter current sensor (phase W main sensor)

(Short to +B)

(1 trip detection logic)
  • Inverter with converter assembly
  • Wire harness or connector

Comes on

Master Warning:

Comes on

P0BED14

Drive Motor "A" Phase W Current Sensor Circuit Short to Ground or Open

Malfunction in motor inverter current sensor (phase W main sensor)

(Open or short to ground)

(1 trip detection logic)
  • Inverter with converter assembly
  • Wire harness or connector

Comes on

Master Warning:

Comes on

P0BED1F

Drive Motor "A" Phase W Current Sensor Circuit Intermittent

Short to +B, open or short to ground detected in motor inverter current sensor (phase W main sensor) when DTC P0C7917, P0D3319, P1C5D19 or P1C5F19 is stored.

(1 trip detection logic)
  • Inverter with converter assembly
  • Wire harness or connector

Does not come on

Master Warning:

Does not come on

MONITOR DESCRIPTION

The motor generator control ECU monitors the motor inverter current sensor. If the motor generator control ECU detects a malfunction, it will illuminate MIL and store a DTC.

MONITOR STRATEGY

Related DTCs

P0BE8 (INF P0BE512): Drive Motor "A" Phase U Current Sensor Range check (High voltage)

P0BE7 INF (P0BE514): Drive Motor "A" Phase U Current Sensor Range check (Low voltage)

P0BEC (INF P0BE912): Drive Motor "A" Phase V Current Sensor Range check (High voltage)

P0BEB (INF P0BE914): Drive Motor "A" Phase V Current Sensor Range check (Low voltage)

P0BF0 (INF P0BED12): Drive Motor "A" Phase W Current Sensor Range check (High voltage)

P0BEF (INF P0BED14): Drive Motor "A" Phase W Current Sensor Range check (Low voltage)

Required sensors/components

Motor inverter phase U current sensor

Motor inverter phase V current sensor

Motor inverter phase W 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

Motor generator control ECU

DTC P0BE8 (INF P0BE512) is not detected

DTC P0BE7 (INF P0BE514) is not detected

DTC P0BEC (INF P0BE912) is not detected

DTC P0BEB (INF P0BE914) is not detected

DTC P0BF0 (INF P0BED12) is not detected

DTC P0BEF (INF P0BED14) 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 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): UTILITY

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

    Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): DTC CHECK / CLEAR

  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 and wait for 2 minutes or more.
  5. Turn the power switch on (IG) and turn the Techstream on.
  6. With power switch on (IG) and wait for 5 seconds or more. [*1]
  7. Turn the power switch on (READY) with the shift lever in P and wait for 5 seconds or more. [*2]
  8. Depress the accelerator pedal of the vehicle with the engine stopped and the shift lever in P to start the engine. [*3]
  9. Drive the vehicle forward with the shift lever in D for 5 m (16 ft.) or more. [*4]
  10. Drive the vehicle backward with the shift lever in R for 5 m (16 ft.) or more. [*5]

    HINT:

    [*1] to [*5]: Normal judgment procedure.

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

  11. Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.
  12. 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 or N/A, perform the normal judgment procedure again.

CAUTION / NOTICE / HINT

CAUTION:

  • 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
  • To prevent electric shock, make sure to remove the service plug grip to cut off the high voltage circuit before servicing the vehicle.
  • 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.
  • 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 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): PRECAUTION

    HINT:

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

    *a

    Without waiting for 10 minutes

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 2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

PROCEDURE

1.

CHECK DTC OUTPUT (MOTOR GENERATOR CONTROL)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Motor Generator / Trouble Codes.

(d) Check for DTCs.

Powertrain > Motor Generator > Trouble Codes

Result

Proceed to

P0BE512, P0BE514, P0BE51F, P0BE912, P0BE914, P0BE91F, P0BED12, P0BED14 and P0BED1F only is output, or DTCs except the ones in the table below are also output.

A

Any of the following DTCs including pending DTCs are also output.

B

Malfunction Content

Relevant DTC

Power source circuit malfunction

P06B01C

Generator Control Module Position Sensor REF Power Source Circuit Voltage Out of Range

P06D61C

Generator Control Module Offset Power Circuit Voltage Out of Range

System malfunction

P0A7873

Drive Motor "A" Inverter Actuator Stuck Closed

HINT:

  • P0BE512, P0BE514, P0BE51F, P0BE912, P0BE914, P0BE91F, P0BED12, P0BED14 and P0BED1F may be output as a result of the malfunction indicated by the DTCs above.
    1. The chart above is listed in inspection order of priority.
    2. Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)

(e) Turn the power switch off.

B

GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM)

A

2.

CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR)

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): P033500,P033531; Crankshaft Position Sensor "A"+

Result

Proceed to

OK

A

NG (The connector is not connected securely.)

B

NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.)

C
A

REPLACE INVERTER WITH CONVERTER ASSEMBLY

B

CONNECT SECURELY
C

REPAIR OR REPLACE HARNESS OR CONNECTOR