Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM1000000026PXF |
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): P0BFD62,P1C671F; Drive Motor A" Phase U-V-W Current Sensor Signal Compare Failure"; 2023 - 2025 MY Corolla HV [09/2022 - ] |
DTC
|
P0BFD62
|
Drive Motor A" Phase U-V-W Current Sensor Signal Compare Failure"
|
DTC
|
P1C671F
|
Drive Motor "A" Phase U-V-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
-
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)
|
-
Inverter with converter assembly
-
Motor cable
-
Hybrid vehicle transaxle assembly
-
Wire harness or connector
|
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)
|
-
Inverter with converter assembly
-
Motor cable
-
Hybrid vehicle transaxle assembly
-
Wire harness or connector
|
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
-
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) 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.
Click here
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.)
Table 1
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
|
Table 2
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 |
|
CONNECT SECURELY
|
C |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
A
|
|
|
2.
|
CHECK MOTOR HIGH-VOLTAGE CIRCUIT
|
Click here
HINT:
If the "Motor High-voltage Circuit" inspection results are normal, perform the next step.
|