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 following:
Internal inverter malfunctionDESCRIPTION
DTC No. | Detection Item |
DTC Detection Condition |
Trouble Area | MIL |
Warning Indicate | Note |
---|---|---|---|---|---|---|
P0A7972 | Drive Motor "B" Inverter Actuator Stuck Open |
Malfunction is detected when offset component occurs in current flowing through motor with one phase open malfunction (1 trip detection logic) |
| Comes on |
Master Warning: Comes on |
SAE Code: P0A79 |
MONITOR DESCRIPTION
The motor generator control ECU monitors the rear motor circuit. If the motor generator control ECU detects a malfunction of the rear motor (MGR), the ECU will illuminate the MIL and store a DTC.
MONITOR STRATEGY
Related DTCs | P0A79 (INF:P0A7972): Open circuit malfunction |
Required sensors/components | Rear motor inverter |
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 P0A79 (INF P0A7972) is not detected |
CONFIRMATION DRIVING PATTERN
HINT:
Click here
Click here
HINT:
[*1] to [*2]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
HINT:
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.
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NOTICE:
Click here
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:
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 | ||
System main relay or high voltage circuit malfunction |
Hybrid control system |
P0AD911 | Hybrid/EV Battery Positive Contactor Circuit Short to Ground |
P0AD915 | Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery or Open | ||
P0ADD11 | Hybrid/EV Battery Negative Contactor Circuit Short to Ground | ||
P0ADD15 | Hybrid/EV Battery Negative Contactor Circuit Short to Auxiliary Battery or Open | ||
P1C8449 | High Voltage Power Resource Circuit Short during Ready ON |
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 | ||
P0A1B47 | Drive Motor "A" Control Module Watchdog / Safety MC Failure | ||
P0A1B1F | Generator Control Module Circuit Intermittent | ||
P0A1C47 | Drive Motor "B" Control Module Watchdog / Safety MCU Failure | ||
P0A1C49 | Drive Motor "B" 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 | ||
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 | ||
P310A83 | Communication Error from Drive Motor "B" to Drive Motor "A" Value of Signal Protection Calculation Incorrect | ||
P310A86 | Communication Error from Drive Motor "B" to Drive Motor "A" Signal (Some Circuit Quantity, Reported via Serial Data) Invalid | ||
P310A87 | Communication Error from Drive Motor "B" to Drive Motor "A" Missing Message | ||
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 | ||
P313383 | Communication Error from Generator to Drive Motor "A" Value of Signal Protection Calculation Incorrect | ||
P313386 | Communication Error from Generator to Drive Motor "A" Signal Invalid | ||
P313387 | Communication Error from Generator to Drive Motor "A" Missing Message | ||
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 | ||
P32BF83 | Lost Communication between Drive Motor "A" and "B" (Drive Motor "A") Value of Signal Protection Calculation Incorrect | ||
P32BF86 | Lost Communication between Drive Motor "A" and "B" (Drive Motor "A") Signal (Some Circuit Quantity, Reported via Serial Data) Invalid | ||
P32BF87 | Lost Communication between Drive Motor "A" and "B" (Drive Motor "A") Missing Message | ||
P32CF83 | Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Value of Signal Protection Calculation Incorrect | ||
P32CF86 | Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Signal (Some Circuit Quantity, Reported via Serial Data) Invalid | ||
P32CF87 | Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Missing Message | ||
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 |
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 | ||
P19F81C | Generator Control Module Offset Power Circuit Voltage Out of Range | ||
P19F91C | Drive Motor "B" Control Module Offset Power Circuit Voltage Out of Range | ||
P26DF1C | Generator Control Module Position Sensor REF Power Source Circuit Voltage Out of Range | ||
Sensor and actuator circuit malfunction |
Motor generator control system |
P0A3F16 | Drive Motor "A" Position Sensor Circuit Voltage Below Threshold |
P0A3F21 | Drive Motor "A" Position Sensor Signal Amplitude < Minimum | ||
P0A3F22 | Drive Motor "A" Position Sensor Signal Amplitude > Maximum | ||
P0A4516 | Drive Motor "B" Position Sensor Circuit Voltage Below Threshold | ||
P0A4521 | Drive Motor "B" Position Sensor Signal Amplitude < Minimum | ||
P0A4522 | Drive Motor "B" Position Sensor Signal Amplitude > Maximum | ||
P0A4B16 | Generator Position Sensor Circuit Voltage Below Threshold | ||
P0A4B21 | Generator Position Sensor Signal Amplitude < Minimum | ||
P0A4B22 | Generator Position Sensor Signal Amplitude > Maximum | ||
P0A6012 | Drive Motor "A" Phase V Current (High Resolution) Circuit Short to Battery | ||
P0A6014 | Drive Motor "A" Phase V Current (High Resolution) Circuit Short to Ground or Open | ||
P0A601C | Drive Motor "A" Phase V Current (High Resolution) Circuit Voltage Out of Range | ||
P0A6312 | Drive Motor "A" Phase W Current (High Resolution) Circuit Short to Battery | ||
P0A6314 | Drive Motor "A" Phase W Current (High Resolution) Circuit Short to Ground or Open | ||
P0A631C | Drive Motor "A" Phase W Current (High Resolution) Circuit Voltage Out of Range | ||
P0A6912 | Drive Motor "B" Phase V Current(High Resolution) Circuit Short to Battery | ||
P0A6914 | Drive Motor "B" Phase V Current(High Resolution) Circuit Short to Ground or Open | ||
P0A691C | Drive Motor "B" Phase V Current(High Resolution) Circuit Voltage Out of Range | ||
P0A6C12 | Drive Motor "B" Phase W Current(High Resolution) Circuit Short to Battery | ||
P0A6C14 | Drive Motor "B" Phase W Current(High Resolution) Circuit Short to Ground or Open | ||
P0A6C1C | Drive Motor "B" Phase W Current(High Resolution) Circuit Voltage Out of Range | ||
P0BE512 | Drive Motor "A" Phase U Current Sensor Circuit Short to Battery | ||
P0BE514 | Drive Motor "A" Phase U Current Sensor Circuit Short to Ground or Open | ||
P0BE528 | Drive Motor "A" Phase U Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure | ||
P0BE912 | Drive Motor "A" Phase V Current Sensor Circuit Short to Battery | ||
P0BE914 | Drive Motor "A" Phase V Current Sensor Circuit Short to Ground or Open | ||
P0BE928 | Drive Motor "A" Phase V Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure | ||
P0BED12 | Drive Motor "A" Phase W Current Sensor Circuit Short to Battery | ||
P0BED14 | Drive Motor "A" Phase W Current Sensor Circuit Short to Ground or Open | ||
P0BED28 | Drive Motor "A" Phase W Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure | ||
P0BF112 | Drive Motor "B" Phase U Current Sensor Circuit Short to Battery | ||
P0BF114 | Drive Motor "B" Phase U Current Sensor Circuit Short to Ground or Open | ||
P0BF128 | Drive Motor "B" Phase U Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure | ||
P0BF512 | Drive Motor "B" Phase V Current Sensor Circuit Short to Battery | ||
P0BF514 | Drive Motor "B" Phase V Current Sensor Circuit Short to Ground or Open | ||
P0BF528 | Drive Motor "B" Phase V Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure | ||
P0BF912 | Drive Motor "B" Phase W Current Sensor Circuit Short to Battery | ||
P0BF914 | Drive Motor "B" Phase W Current Sensor Circuit Short to Ground or Open | ||
P0BF928 | Drive Motor "B" Phase W Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure | ||
P0BFD62 | Drive Motor "A" Phase U-V-W Current Sensor Signal Compare Failure | ||
P0BFE62 | Drive Motor "B" Phase U-V-W Current Sensor Signal Compare Failure | ||
P0C5013 | Drive Motor "A" Position Sensor Circuit "A" Circuit Open | ||
P0C5016 | Drive Motor "A" Position Sensor Circuit "A" Circuit Voltage Below Threshold | ||
P0C5017 | Drive Motor "A" Position Sensor Circuit "A" Circuit Voltage Above Threshold | ||
P0C5513 | Drive Motor "B" Position Sensor Circuit "A" Circuit Open | ||
P0C5516 | Drive Motor "B" Position Sensor Circuit "A" Circuit Voltage Below Threshold | ||
P0C5517 | Drive Motor "B" Position Sensor Circuit "A" Circuit Voltage Above Threshold | ||
P0C5A13 | Drive Motor "A" Position Sensor Circuit "B" Circuit Open | ||
P0C5A16 | Drive Motor "A" Position Sensor Circuit "B" Circuit Voltage Below Threshold | ||
P0C5A17 | Drive Motor "A" Position Sensor Circuit "B" Circuit Voltage Above Threshold | ||
P0C5F13 | Drive Motor "B" Position Sensor Circuit "B" Circuit Open | ||
P0C5F16 | Drive Motor "B" Position Sensor Circuit "B" Circuit Voltage Below Threshold | ||
P0C5F17 | Drive Motor "B" Position Sensor Circuit "B" Circuit Voltage Above Threshold | ||
P0C6413 | Generator Position Sensor Circuit "A" Circuit Open | ||
P0C6416 | Generator Position Sensor Circuit "A" Circuit Voltage Below Threshold | ||
P0C6417 | Generator Position Sensor Circuit "A" Circuit Voltage Above Threshold | ||
P0C6913 | Generator Position Sensor Circuit "B" Circuit Open | ||
P0C6916 | Generator Position Sensor Circuit "B" Circuit Voltage Below Threshold | ||
P0C6917 | Generator Position Sensor Circuit "B" Circuit Voltage Above Threshold | ||
P0D2D16 | Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Below Threshold | ||
P0D2D17 | Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Above Threshold | ||
P0DFA62 | Generator Phase U-V-W Current Sensor Signal Compare Failure | ||
P0E0012 | Generator Phase U Current Sensor Circuit Short to Battery | ||
P0E0014 | Generator Phase U Current Sensor Circuit Short to Ground or Open | ||
P0E0028 | Generator Phase U Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure | ||
P0E0412 | Generator Phase V Current Sensor Circuit Short to Battery | ||
P0E0414 | Generator Phase V Current Sensor Circuit Short to Ground or Open | ||
P0E0428 | Generator Phase V Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure | ||
P0E0812 | Generator Phase W Current Sensor Circuit Short to Battery | ||
P0E0814 | Generator Phase W Current Sensor Circuit Short to Ground or Open | ||
P0E0828 | Generator Phase W Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure | ||
P0E3116 | DC/DC Converter Voltage Sensor "A" (VL) Circuit Voltage Below Threshold | ||
P0E3117 | DC/DC Converter Voltage Sensor "A" (VL) Circuit Voltage Above Threshold | ||
P0E5111 | DC/DC Converter Current Sensor Circuit Short to Ground | ||
P0E5115 | DC/DC Converter Current Sensor Circuit Short to Battery or Open | ||
P0E512A | DC/DC Converter Current Sensor Signal Stuck In Range | ||
P1CAC49 | Generator Position Sensor Internal Electronic Failure | ||
P1CAD49 | Drive Motor "A" Position Sensor Internal Electronic Failure | ||
P1CAE49 | Drive Motor "B" Position Sensor Internal Electronic Failure | ||
P1CAF38 | Generator Position Sensor REF Signal Cycle Malfunction Signal Frequency Incorrect | ||
P1CB038 | Drive Motor "A" Position Sensor REF Signal Frequency Incorrect | ||
P1CB138 | Drive Motor "B" Position Sensor REF Signal Frequency Incorrect | ||
P1CFF62 | Hybrid/EV Battery Current/DC/DC Converter Current Signal Compare Failure | ||
Hybrid control system | P0C7600 |
Hybrid/EV Battery System Discharge Time Too Long | |
P0D2D1C | Drive Motor "A" Inverter Voltage Sensor Voltage Out of Range | ||
P0E311C | Boosting Converter Voltage Sensor "A" Voltage Out of Range | ||
P1C2D62 | Hybrid/EV Battery "A" Voltage Sensor/Boosting Converter Voltage Sensor "A" Signal Compare Failure |
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 |
|
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 |