Toyota Corolla Cross: Drive Motor "B" Phase U-V-W Current Sensor Signal Compare Failure (P0BFE62,P1C681F)
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- Current sensor malfunction
- Inverter with converter assembly internal circuit malfunction
DESCRIPTION
|
DTC No. | Detection Item |
DTC Detection Condition |
Trouble Area | MIL |
Warning Indicate | Note |
|---|---|---|---|---|---|---|
|
P0BFE62 | Drive Motor "B" Phase U-V-W Current Sensor Signal Compare Failure |
Rear motor inverter current sensor characteristic malfunction: The value of the total output of the U, V and W phase current sensors exceeds the threshold.*1 (1 trip detection logic) |
| Comes on |
Master Warning: Comes on |
SAE Code: P0BFE |
|
P1C681F | Drive Motor "B" Phase U-V-W Current Sensor Circuit Intermittent |
The value of the total output of the U, V and W phase current sensors exceeds the threshold detected 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: P1C68 |
HINT:
*1: Under normal conditions, the value of the total output of the U, V and W phase current sensors is approximately 0.
MONITOR DESCRIPTION
If the value of the total output of the U, V and W phase current sensors exceeds a threshold, a malfunction will be detected, the motor generator control ECU will illuminate the MIL and store a DTC.
MONITOR STRATEGY
|
Related DTCs | P0BFE (INF P0BFE62): Signal Compare Failure |
|
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 | 1 driving cycle |
|
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 P0BFE (INF P0BFE62) 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
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- 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 (READY). [*1]
- Move the shift lever to D, and then accelerate until the vehicle speed is 20 km/h (12.5 mph) and the accelerator position is approximately 25%. [*2]
HINT:
[*1] to [*2]: 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.
WIRING DIAGRAM
Refer to the wiring diagram for the Rear Motor High-voltage Circuit.
Click here
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.
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- 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:
- P0BFE62 or P1C681F 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 | |
|---|---|---|---|
|
Insulation malfunction |
Hybrid control system |
P1C7C49 | Hybrid/EV Battery Voltage System Isolation (A/C Area) Internal Electronic Failure |
|
P1C7D49 | Hybrid/EV Battery Voltage System Isolation (Hybrid/EV Battery Area) Internal Electronic Failure | ||
|
P1C7E49 | Hybrid/EV Battery Voltage System Isolation (Transaxle Area) Internal Electronic Failure | ||
|
P1C7F49 | Hybrid/EV Battery Voltage System Isolation (Direct Current Area) Internal Electronic Failure | ||
|
P1C8049 | Hybrid/EV Battery Voltage System Isolation (Rear Motor Area) Internal Electronic Failure | ||
|
High voltage system malfunction |
Hybrid control system |
P0AA649 | Hybrid/EV Battery Voltage System Isolation Internal Electronic Failure |
|
Malfunction Content | System |
Relevant DTC | |
|---|---|---|---|
|
Microcomputer malfunction |
Hybrid control system |
P0A1B49 | Drive Motor "A" Control Module Internal Electronic Failure |
|
Motor generator control system |
P0A1C47 | Drive Motor "B" Control Module Watchdog / Safety MCU Failure | |
|
P0A1C49 | Drive Motor "B" Control Module Internal Electronic Failure | ||
|
P1C2B1C | Drive Motor "A" Control Module A/D Converter Circuit Voltage Out of Range | ||
|
P1C2B49 | Drive Motor "A" Control Module A/D Converter Circuit Internal Electronic Failure | ||
|
P1C2B71 | Drive Motor "A" Control Module A/D Converter Circuit Actuator Stuck | ||
|
P1C2C1C | Drive Motor "B" Control Module AD Converter Circuit Voltage Out of Range | ||
|
P1C2C49 | Drive Motor "B" Control Module AD Converter Internal Electronic Failure | ||
|
P1C2C71 | Drive Motor "B" Control Module A/D Converter Circuit Actuator Stuck | ||
|
P310B83 | Communication Error from Drive Motor "A" to Drive Motor "B" Value of Signal Protection Calculation Incorrect | ||
|
P310B86 | Communication Error from Drive Motor "A" to Drive Motor "B" Signal (Some Circuit Quantity, Reported via Serial Data) Invalid | ||
|
P310B87 | Communication Error from Drive Motor "A" to Drive Motor "B" Missing Message | ||
|
Power source circuit malfunction |
Motor generator control system |
P06B01C | Generator Control Module Position Sensor REF Power Source Circuit Voltage Out of Range |
|
P06B31C | Drive Motor "B" Control Module Position Sensor REF Power Source Circuit Voltage Out of Range | ||
|
P06D61C | Generator Control Module Offset Power Circuit Voltage Out of Range | ||
|
P19F91C | Drive Motor "B" Control Module Offset Power Circuit Voltage Out of Range | ||
|
Communication malfunction |
Motor generator control system |
U11B387 | Lost Communication with Hybrid/EV Powertrain Control Module (ch5) Missing Message |
|
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 |
| B | .gif) | CONNECT SECURELY |
| C | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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|
2. | CHECK REAR MOTOR HIGH-VOLTAGE CIRCUIT |
Click here
HINT:
If the "Rear Motor High-voltage Circuit" inspection results are normal, perform the next step.
| NEXT | | REPLACE INVERTER WITH CONVERTER ASSEMBLY |
READ NEXT:
Drive Motor "A" Circuit Current Out of Range (P0BFF1D)
DTC SUMMARY MALFUNCTION DESCRIPTION This DTC is stored when the motor generator control system is malfunctioning and current does not flow as commanded. The cause of this malfunction may be one of the
Drive Motor "B" System Circuit Current Out of Range (P0C021D)
DTC SUMMARY MALFUNCTION DESCRIPTION This DTC is stored when the rear motor control system is malfunctioning and current does not flow as commanded. The cause of this malfunction may be one of the foll
Drive Motor "A" Execution Torque Performance (P0C1900)
DTC SUMMARY MALFUNCTION DESCRIPTION This DTC indicates that the motor torque execution value does not correspond to the torque command value sent from the hybrid vehicle control ECU to the motor (MG2)
SEE MORE:
Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Correlation Signal Cross Coupled (P21352B)
DESCRIPTION Refer to DTC P012011. Click here
DTC No. Detection Item
DTC Detection Condition Trouble Area
MIL Note
P21352B Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Correlation Signal Cross Coupled
The difference between the output voltage of VTA1
Lubrication System
On-vehicle InspectionON-VEHICLE INSPECTION PROCEDURE
1. CHECK ENGINE OIL LEVEL (a) Warm up and stop the engine, then wait for 5 minutes.
(b) Check that the engine oil level is between the low level and full level marks on the engine oil level dipstick.
If the level is low, check for engine oil
