Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Drive Motor "A" Phase U Current Sensor Circuit Short to Battery (P0BE512,P0BE514,P0BE51F,P0BE912,P0BE914,P0BE91F,P0BED12,P0BED14,P0BED1F)

Toyota Corolla Cross (2022-2024) Service Manual / Engine & Hybrid System / Hybrid / Battery Control / Motor Generator Control System / Drive Motor "A" Phase U Current Sensor Circuit Short to Battery (P0BE512,P0BE514,P0BE51F,P0BE912,P0BE914,P0BE91F,P0BED12,P0BED14,P0BED1F)

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

Note

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

SAE Code:

P0BE8

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

SAE Code:

P0BE7

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, P0E5717, P0D3319, P1C5D19, P1C5F19 or P1C5E19 is stored.

(1 trip detection logic)

  • Inverter with converter assembly
  • Wire harness or connector

Does not come on

Master Warning:

Does not come on

SAE Code:

P1C40

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

SAE Code:

P0BEC

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

SAE Code:

P0BEB

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, P0E5717, P0D3319, P1C5D19, P1C5F19 or P1C5E19 is stored.

(1 trip detection logic)

  • Inverter with converter assembly
  • Wire harness or connector

Does not come on

Master Warning:

Does not come on

SAE Code:

P1C41

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

SAE Code:

P0BF0

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

SAE Code:

P0BEF

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, P0E5717, P0D3319, P1C5D19, P1C5F19 or P1C5E19 is stored.

(1 trip detection logic)

  • Inverter with converter assembly
  • Wire harness or connector

Does not come on

Master Warning:

Does not come on

SAE Code:

P1C42

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

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

    Click here

  1. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  2. Turn the ignition switch off and wait for 2 minutes or more.
  3. Turn the ignition switch to ON and wait for 5 seconds or more. [*1]
  4. Turn the ignition switch to ON (READY) and wait for 5 seconds or more. [*2]
  5. Depress the accelerator pedal of the vehicle with the engine stopped and the shift lever in P to start the engine. [*3]
  6. Drive the vehicle forward with the shift lever in D for 5 m (16 ft.) or more. [*4]
  7. 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.

  8. Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.
  9. 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

HINT:

  • P0BE512, P0BE514, P0BE51F, P0BE912, P0BE914, P0BE91F, P0BED12, P0BED14 and P0BED1F may be output as a result of the malfunction indicated by the DTCs in table below.
    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.)

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

PROCEDURE

1.

CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR)

Click here

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

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