MALFUNCTION DESCRIPTION
These DTCs indicate an abnormal resolver output signal. The cause of this malfunction may be one of the following:
Inverter with converter assembly internal circuit malfunction
The connectors are not connected properly
If any of these DTCs is output, a malfunction of the circuit board of the motor generator control ECU (MG ECU) or poor installation of a low voltage connector is suspected. It is not necessary to inspect the motor resolver.
Refer to the system description for the Motor Resolver Circuit.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | Note |
|---|---|---|---|---|---|---|
| P0C5016 | Drive Motor "A" Position Sensor Circuit "A" Circuit Voltage Below Threshold | The value of the motor resolver sin phase signal is lower than the low side threshold.
(1 trip detection logic) |
·
Inverter with converter assembly ·
Wire harness or connector |
Comes on | Master Warning:
Comes on |
SAE Code:
P0C52 |
| P0C5017 | Drive Motor "A" Position Sensor Circuit "A" Circuit Voltage Above Threshold | The value of the motor resolver sin phase signal is higher than the high side threshold.
(1 trip detection logic) |
·
Inverter with converter assembly ·
Wire harness or connector |
Comes on | Master Warning:
Comes on |
SAE Code:
P0C53 |
| P0C5A16 | Drive Motor "A" Position Sensor Circuit "B" Circuit Voltage Below Threshold | The value of the motor resolver cos phase signal is lower than the low side threshold.
(1 trip detection logic) |
·
Inverter with converter assembly ·
Wire harness or connector |
Comes on | Master Warning:
Comes on |
SAE Code:
P0C5C |
| P0C5A17 | Drive Motor "A" Position Sensor Circuit "B" Circuit Voltage Above Threshold | The value of the motor resolver cos phase signal is higher than the high side threshold.
(1 trip detection logic) |
·
Inverter with converter assembly ·
Wire harness or connector |
Comes on | Master Warning:
Comes on |
SAE Code:
P0C5D |
The motor generator control ECU monitors the motor 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 motor resolver. If a malfunction is detected, the motor generator control ECU will illuminate the MIL and store a DTC.
| Related DTCs | P0C52 (INF P0C5016): Out of range
P0C53 (INF P0C5017): Out of range P0C5C (INF P0C5A16): Out of range P0C5D (INF P0C5A17): Out of range |
| Required sensors/components | Motor resolver |
| Frequency of operation | Continuous |
| Duration | TMC's intellectual property |
| MIL operation | 1 driving cycle |
| Sequence of operation | None |
| The monitor will run whenever the following DTCs are not stored | TMC's intellectual property |
| Other conditions belong to TMC's intellectual property | - |
| TMC's intellectual property | - |
| Motor generator control ECU | DTC P0C52 (INF P0C5016) is not detected
DTC P0C53 (INF P0C5017) is not detected DTC P0C5C (INF P0C5A16) is not detected DTC P0C5D (INF P0C5A17) is not detected |
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.
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
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]
[*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.
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.
Refer to the precautions before inspecting high voltage circuit.
After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
When disconnecting and reconnecting the auxiliary battery.
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
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.
P0C5016, P0C5017, P0C5A16 or P0C5A17 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.)
| 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 | ||
| 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 | ||
| P1CB038 | Drive Motor "A" Position Sensor REF Signal Frequency Incorrect | ||
| 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 | ||
| 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
C