| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000026QHS |
| Model Year Start: 2023 | Model: Corolla HV | Prod Date Range: [09/2022 - ] |
| Title: HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): P0BF112,...,P0BF91F; Drive Motor "B" Phase U Current Sensor Circuit Short to Battery; 2023 - 2025 MY Corolla HV [09/2022 - ] | ||
|
DTC |
P0BF112 |
Drive Motor "B" Phase U Current Sensor Circuit Short to Battery |
|
DTC |
P0BF114 |
Drive Motor "B" Phase U Current Sensor Circuit Short to Ground or Open |
|
DTC |
P0BF11F |
Drive Motor "B" Phase U Current Sensor Circuit Intermittent |
|
DTC |
P0BF512 |
Drive Motor "B" Phase V Current Sensor Circuit Short to Battery |
|
DTC |
P0BF514 |
Drive Motor "B" Phase V Current Sensor Circuit Short to Ground or Open |
|
DTC |
P0BF51F |
Drive Motor "B" Phase V Current Sensor Circuit Intermittent |
|
DTC |
P0BF912 |
Drive Motor "B" Phase W Current Sensor Circuit Short to Battery |
|
DTC |
P0BF914 |
Drive Motor "B" Phase W Current Sensor Circuit Short to Ground or Open |
|
DTC |
P0BF91F |
Drive Motor "B" 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:
Inverter internal 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 rear 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 |
|---|---|---|---|---|---|---|
|
P0BF112 |
Drive Motor "B" Phase U Current Sensor Circuit Short to Battery |
Malfunction in rear motor inverter current sensor (phase U main sensor) (Short to +B) (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
SAE Code: P0BF4 |
|
P0BF114 |
Drive Motor "B" Phase U Current Sensor Circuit Short to Ground or Open |
Malfunction in rear motor inverter current sensor (phase U main sensor) (Open or short to ground) (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
SAE Code: P0BF3 |
|
P0BF11F |
Drive Motor "B" Phase U Current Sensor Circuit Intermittent |
Short to +B, open or short to ground detected in rear motor inverter current sensor (phase U main sensor) when DTC P0C7917, P0E5717, P0D3319, P1C5D19, P1C5F19 or P1C5E19 is stored. (1 trip detection logic) |
|
Does not come on |
Master Warning: Does not come on |
SAE Code: P1C43 |
|
P0BF512 |
Drive Motor "B" Phase V Current Sensor Circuit Short to Battery |
Malfunction in rear motor inverter current sensor (phase V main sensor) (Short to +B) (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
SAE Code: P0BF8 |
|
P0BF514 |
Drive Motor "B" Phase V Current Sensor Circuit Short to Ground or Open |
Malfunction in rear motor inverter current sensor (phase V main sensor) (Open or short to ground) (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
SAE Code: P0BF7 |
|
P0BF51F |
Drive Motor "B" Phase V Current Sensor Circuit Intermittent |
Short to +B, open or short to ground detected in rear motor inverter current sensor (phase V main sensor) when DTC P0C7917, P0E5717, P0D3319, P1C5D19, P1C5F19 or P1C5E19 is stored. (1 trip detection logic) |
|
Does not come on |
Master Warning: Does not come on |
SAE Code: P1C44 |
|
P0BF912 |
Drive Motor "B" Phase W Current Sensor Circuit Short to Battery |
Malfunction in rear motor inverter current sensor (phase W main sensor) (Short to +B) (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
SAE Code: P0BFC |
|
P0BF914 |
Drive Motor "B" Phase W Current Sensor Circuit Short to Ground or Open |
Malfunction in rear motor inverter current sensor (phase W main sensor) (Open or short to ground) (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
SAE Code: P0BFB |
|
P0BF91F |
Drive Motor "B" Phase W Current Sensor Circuit Intermittent |
Short to +B, open or short to ground detected in rear motor inverter current sensor (phase W main sensor) when DTC P0C7917, P0E5717, P0D3319, P1C5D19, P1C5F19 or P1C5E19 is stored. (1 trip detection logic) |
|
Does not come on |
Master Warning: Does not come on |
SAE Code: P1C45 |
MONITOR DESCRIPTION
The motor generator control ECU monitors the rear 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 |
P0BF4 (INF P0BF112): Drive Motor "B" Phase U Current Sensor Range check (High voltage) P0BF3 INF (P0BF114): Drive Motor "B" Phase U Current Sensor Range check (Low voltage) P0BF8 (INF P0BF512): Drive Motor "B" Phase V Current Sensor Range check (High voltage) P0BF7 (INF P0BF514): Drive Motor "B" Phase V Current Sensor Range check (Low voltage) P0BFC (INF P0BF912): Drive Motor "B" Phase W Current Sensor Range check (High voltage) P0BFB (INF P0BF914): Drive Motor "B" Phase W Current Sensor Range check (Low voltage) |
|
Required sensors/components |
Rear motor inverter phase U current sensor Rear motor inverter phase V current sensor Rear 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 P0BF4 (INF P0BF112) is not detected DTC P0BF3 INF (P0BF114) is not detected DTC P0BF8 (INF P0BF512) is not detected DTC P0BF7 (INF P0BF514) is not detected DTC P0BFC (INF P0BF912) is not detected DTC P0BFB (INF P0BF914) 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
![2023 - 2025 MY Corolla HV [09/2022 - ]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): UTILITY](/t3Portal/stylegraphics/info.gif)
-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off and wait for 2 minutes or more.
- Turn the ignition switch to ON and wait for 5 seconds or more. [*1]
- Turn the ignition switch to ON (READY) and wait for 5 seconds or more. [*2]
- Depress the accelerator pedal of the vehicle with the engine stopped and the shift lever in P to start the engine. [*3]
- Drive the vehicle forward with the shift lever in D for 5 m (16 ft.) or more. [*4]
-
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.
- Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.
-
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:
P0BF112, P0BF114, P0BF11F, P0BF512, P0BF514, P0BF51F, P0BF912, P0BF914 or P0BF91F may be output as a result of the malfunctions indicated by the DTCs in table below.
- The chart above is listed in inspection order of priority.
- 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 |
System |
Relevant DTC |
|
|---|---|---|---|
|
Power source circuit malfunction |
Motor generator control system |
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 |
Motor generator control system |
P0A7973 |
Drive Motor "B" 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 |
|
| B |
|
CONNECT SECURELY |
| C |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|