Toyota Corolla Cross: Drive Motor A" Phase U-V-W Current Sensor Signal Compare Failure" (P0BFD62,P1C671F)
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 |
|---|---|---|---|---|---|---|
|
P0BFD62 | Drive Motor "A" Phase U-V-W Current Sensor Signal Compare Failure |
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: P0BFD |
|
P1C671F | Drive Motor "A" 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: P1C67 |
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 | P0BFD (INF P0BFD62): Signal Compare Failure |
|
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 | 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 P0BFD (INF P0BFD62) 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.
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- 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) with the shift lever in P and wait for 5 seconds or more. [*2]
- Press the HV EV CHG HOLD mode switch to enter HV drive mode. [*3]
- Depress the accelerator pedal of the vehicle with the engine stopped and the shift lever in P to start the engine. [*4]
- Drive the vehicle for approximately 10 minutes referring to the following freeze frame data item: "Vehicle Speed". [*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.
WIRING DIAGRAM
Refer to the wiring diagram for the Motor High-voltage Circuit.
Click here
CAUTION / NOTICE / HINT
CAUTION:
Refer to the precautions before inspecting high voltage circuit.
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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.
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HINT:
- P0BFD62 or P1C671F 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 |
Motor generator control system |
P0A1B47 | Drive Motor "A" Control Module Watchdog / Safety MC 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 | ||
|
Hybrid control system |
P0A1B49 | Drive Motor "A" Control Module Internal Electronic Failure | |
|
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 | ||
|
Communication malfunction |
Motor generator control system |
U11B387 | Lost Communication with Hybrid/EV Powertrain Control Module (ch5) Missing Message |
|
System malfunction |
Motor generator control system |
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 |
| B | .gif) | CONNECT SECURELY |
| C | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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|
2. | CHECK MOTOR HIGH-VOLTAGE CIRCUIT |
Click here
HINT:
If the "Motor High-voltage Circuit" inspection results are normal, perform the next step.
| NEXT | | REPLACE INVERTER WITH CONVERTER ASSEMBLY |
