| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000026PXO |
| 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): P0C6416,...,P0C6917; Generator Position Sensor Circuit "A" Circuit Voltage Below Threshold; 2023 - 2025 MY Corolla HV [09/2022 - ] | ||
|
DTC |
P0C6416 |
Generator Position Sensor Circuit "A" Circuit Voltage Below Threshold |
|
DTC |
P0C6417 |
Generator Position Sensor Circuit "A" Circuit Voltage Above Threshold |
|
DTC |
P0C6916 |
Generator Position Sensor Circuit "B" Circuit Voltage Below Threshold |
|
DTC |
P0C6917 |
Generator Position Sensor Circuit "B" Circuit Voltage Above Threshold |
DTC SUMMARY
MALFUNCTION DESCRIPTION
These DTCs indicate an abnormal resolver output signal. 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
HINT:
If any of these DTCs is output, a malfunction of the MG ECU circuit board or poor installation of a low voltage connector is suspected. It is not necessary to inspect the motor resolver.
DESCRIPTION
Refer to the system description for the Generator Resolver Circuit.
Click here
![2023 - 2025 MY Corolla HV [09/2022 - ]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): Generator Resolver Circuit+](/t3Portal/stylegraphics/info.gif)
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Warning Indicate |
Note |
|---|---|---|---|---|---|---|
|
P0C6416 |
Generator Position Sensor Circuit "A" Circuit Voltage Below Threshold |
The value of the generator resolver sin phase signal is lower than the low side threshold. (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
SAE Code: P0C66 |
|
P0C6417 |
Generator Position Sensor Circuit "A" Circuit Voltage Above Threshold |
The value of the generator resolver sin phase signal is higher than the high side threshold. (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
SAE Code: P0C67 |
|
P0C6916 |
Generator Position Sensor Circuit "B" Circuit Voltage Below Threshold |
The value of the generator resolver cos phase signal is lower than the low side threshold. (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
SAE Code: P0C6B |
|
P0C6917 |
Generator Position Sensor Circuit "B" Circuit Voltage Above Threshold |
The value of the generator resolver cos phase signal is higher than the high side threshold. (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
SAE Code: P0C6C |
MONITOR DESCRIPTION
The motor generator control ECU monitors the Generator resolver output signal. If the motor generator control ECU detects output signals that are out of the normal range or specification, it will conclude that there is a malfunction in the Generator resolver. If a malfunction is detected, the motor generator control ECU will illuminate the MIL and store a DTC.
MONITOR STRATEGY
|
Related DTCs |
P0C66 (INF P0C6416): Out of range P0C67 (INF P0C6417): Out of range P0C6B (INF P0C6916): Out of range P0C6C (INF P0C6917): Out of range |
|
Required sensors/components |
Generator resolver |
|
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 P0C66 (INF P0C6416) is not detected DTC P0C67 (INF P0C6417) is not detected DTC P0C6B (INF P0C6916) is not detected DTC P0C6C (INF P0C6917) 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) 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:
- If the problem symptom cannot be reproduced, performing a road test on a road on which the vehicle tends to vibrate will make it easier to reproduce the symptom.
- If the resolver is malfunctioning, the vehicle may not drive smoothly.
- When inspecting the connectors, if it is difficult to judge if a connector was disconnected, deformed or improperly secured, disconnect and reconnect the connector and then check for DTCs again. Check if the same DTC is output. If the same DTC is not output, improper connection of connectors is suspected.
- As a malfunction detection threshold may be exceeded when performing the vibration or heat connector inspections, make sure to perform the following inspection to check that the DTC was not stored due to the malfunction of a part.
-
P0C6416, P0C6417, P0C6916 or P0C6917 may be output as a result of the malfunction 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 |
||
Table 2
|
Malfunction Content |
System |
Relevant DTC |
|
|---|---|---|---|
|
Microcomputer malfunction |
Motor generator control system |
P0A1A47 |
Generator Control Module Watchdog / Safety MC Failure |
|
P0A1A49 |
Generator Control Module Internal Electronic Failure |
||
|
P1C2A1C |
Generator A/D Converter Circuit Circuit Voltage Out of Range |
||
|
P1C2A49 |
Generator A/D Converter Circuit Internal Electronic Failure |
||
|
P1C2A71 |
Generator A/D Converter Circuit Actuator Stuck |
||
|
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 |
||
|
P1CAF38 |
Generator Position Sensor REF Signal Cycle Malfunction Signal Frequency Incorrect |
||
|
P313483 |
Communication Error from Drive Motor "A" to Generator Value of Signal Protection Calculation Incorrect |
||
|
P313486 |
Communication Error from Drive Motor "A" to Generator Signal Invalid |
||
|
P313487 |
Communication Error from Drive Motor "A" to Generator Missing Message |
||
|
Hybrid control system |
P0A1B49 |
Drive Motor "A" Control Module Internal Electronic Failure |
|
|
Power source circuit malfunction |
Motor generator control system |
P19F81C |
Generator Control Module Offset Power Circuit Voltage Out of Range |
|
P26DF1C |
Generator Control Module Position Sensor REF Power Source Circuit Voltage Out of Range |
||
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 |
|
|