DTC SUMMARY
MALFUNCTION DESCRIPTION
This DTC indicates that current does not flow as commanded due to a generator output circuit malfunction. The cause of this malfunction may be one of the following:
DESCRIPTION
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
---|---|---|---|---|---|
P0A7A72 | Generator Inverter Actuator Stuck Open | Malfunction is detected when offset component occurs in current flowing through generator with one phase open malfunction (1 trip detection logic) |
| Comes on | Master Warning Light: Comes on |
MONITOR DESCRIPTION
The motor generator control ECU monitors the generator. If the motor generator control ECU detects a malfunction of the generator, the ECU will illuminate the MIL and store a DTC.
MONITOR STRATEGY
Related DTCs | P0A7A (INF:P0A7A72) : Generator Inverter Performance |
Required sensors/components | Generator 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 P0A7A (INF P0A7A72) is not detected |
CONFIRMATION DRIVING PATTERN
HINT:
Click here
Click here
HINT:
[*1]: 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 Generator High-voltage Circuit.
Click here
CAUTION / NOTICE / HINT
CAUTION:
Click here
*a | Without waiting for 10 minutes |
HINT:
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
Click here
PROCEDURE
1. | CHECK DTC OUTPUT |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Hybrid Control and Motor Generator / Trouble Codes.
(d) Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes Powertrain > Motor Generator > Trouble Codes Result | Proceed to |
---|---|
P0A7A72 only is output, or DTCs except the ones in the table below are also output. | A |
DTCs of hybrid control system in the tables below are output. | B |
DTCs of motor generator control system in the tables below are output. | C |
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 | ||
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 μC Failure |
P0A1A49 | Generator Control Module Internal Electronic Failure | ||
P0A1B1F | Generator Control Module Circuit Intermittent | ||
P1C2A1C | Generator A/D Converter Circuit Circuit Voltage Out of Range | ||
P1C2A49 | Generator A/D Converter Circuit Internal Electronic 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 | ||
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 | ||
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 | ||
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 | ||
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 | ||
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 | ||
P0BFD62 | Drive Motor "A" 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 | ||
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 | ||
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 | ||
Sensor and actuator circuit malfunction | Motor generator control system | 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 | ||
P1CAF38 | Generator Position Sensor REF Signal Cycle Malfunction Signal Frequency Incorrect | ||
P1CB038 | Drive Motor "A" Position Sensor REF Signal Frequency Incorrect | ||
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 |
HINT:
(e) Turn the power switch off.
B | GO TO DTC CHART (HYBRID CONTROL SYSTEM) |
C | GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM) |
|
2. | 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 |
|
3. | CHECK GENERATOR HIGH-VOLTAGE CIRCUIT |
Click here
HINT:
If the "Generator High-voltage Circuit" inspection results are normal, perform the next step.
NEXT | REPLACE INVERTER WITH CONVERTER ASSEMBLY |