DESCRIPTION
The Power management control ECU monitors its internal operation, it will set DTCs and perform fail-safe control when it detects the following malfunctions.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0C30 | 390 | Charge control error Charging of the HV battery continues even after charging is prohibited when the hybrid system is malfunctioning and "State of Charge (All Bat)" has reached the upper limit. (1 trip detection logic) | Power management control ECU |
| DTC No. | Data List |
|---|---|
| P0C30-390 | State of Charge (All Bat) Charge Control Value Power Resource IB Battery too High Time |
RELATED DATA LIST
The MG ECU located in the inverter with converter assembly detects the temperature of the boost converter using the temperature sensor built into the boost converter. If necessary, the MG ECU will limit inverter output to help prevent boost converter overheating. The power management control ECU also detects malfunctions in the sensor based on the temperature sensor values. The inverter with converter assembly detects malfunctions in the boost converter temperature sensor and its wiring.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0C39 | 626 | Boost converter temperature (upper) calculated by the power management control ECU is different from the actual temperature for 10 seconds or more, and the boost converter temperature (upper) is too high. (1 trip detection logic) | Inverter cooling system Cooling fan system Inverter with converter assembly |
| P0C3C | 625 | Sudden change in boost converter temperature (upper) sensor output or hunting: Either of the following conditions is met: Unusual sudden change in boost converter temperature sensor (upper) output occurs and the offset continues for a certain period of time.* Unusual sudden change in boost converter temperature sensor (upper) output occurs repeatedly.* (1 trip detection logic) |
HINT
*: If only DTC P0C3C-625 is output, a temperature sensor malfunction is more likely to be the cause than a sudden change in actual temperature.
| DTC No. | Data List |
|---|---|
| P0C39-626 | DC/DC Cnv Temp (Upper) DC/DC Cnv Temp (Lower) |
| P0C3C-625 | DC/DC Cnv Temp (Upper) DC/DC Cnv Temp (Lower) |
RELATED DATA LIST
The following items can be helpful when performing repairs
Data List
- Total Distance Traveled
Operation History Data
- Converter Heating
The MG ECU detects the temperature of the boost converter using the temperature sensor built into the boost converter. The boost converter using the temperature sensor outputs voltage which changes between 0.5 and 4.5 V in response to a change in temperature. The higher the boost converter temperature, the lower the output voltage. Conversely, the lower the boost converter temperature, the higher the output voltage. The MG ECU limit load based on signals sent from the boost converter temperature sensor to help prevent overheating. The MG ECU also detects malfunctions in the boost converter temperature sensor and its wiring.
Scheme 189
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0C3A | 621 | Open or short to GND in the boost converter temperature sensor (upper) signal circuit (1 trip detection logic) | Inverter with converter assembly |
| P0C3B | 622 | Short to +B in the boost converter temperature sensor (upper) signal circuit (1 trip detection logic) | |
| P0C3F | 623 | Open or short to GND in the boost converter temperature sensor (lower) signal circuit (1 trip detection logic) | |
| P0C40 | 624 | Short to +B in the boost converter temperature sensor (lower) signal circuit (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P0C3A-621 | DC/DC Cnv Temp (Upper) |
| P0C3B-622 | |
| P0C3F-623 | DC/DC Cnv Temp (Lower) |
| P0C40-624 |
RELATED DATA LIST
The MG ECU located in the inverter with converter assembly detects the temperature of the boost converter using the temperature sensor built into the boost converter. If necessary, the MG ECU will limit inverter output to help prevent boost converter overheating. The power management control ECU also detects malfunctions in the sensor based on the temperature sensor values. The inverter with converter assembly detects malfunctions in the boost converter temperature sensor and its wiring.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0C3E | 628 | Boost converter temperature (lower) calculated by the power management control ECU is different from the actual temperature for 10 seconds or more, and the boost converter temperature (lower) is too high. (1 trip detection logic) | Inverter cooling system Cooling fan system Inverter with converter assembly |
| P0C41 | 627 | Sudden change in boost converter temperature sensor (lower) output or hunting: Either of the following conditions is met: Unusual sudden change in boost converter temperature sensor (lower) output occurs and the offset continues for a certain period of time.* Unusual sudden change in boost converter temperature sensor (lower) output occurs repeatedly.* (1 trip detection logic) |
HINT
*: If only DTC P0C41-627 is output, a temperature sensor malfunction is more likely to be the cause than a sudden change in actual temperature.
| DTC No. | Data List |
|---|---|
| P0C3E-628 | DC/DC Cnv Temp (Upper) DC/DC Cnv Temp (Lower) |
| P0C41-627 | DC/DC Cnv Temp (Upper) DC/DC Cnv Temp (Lower) |
RELATED DATA LIST
The following items can be helpful when performing repairs
Data List
- Total Distance Traveled
Operation History Data
- Converter Heating
The inverter water pump assembly transmits rotation revolution speed information to the power management control ECU. The power management control ECU monitors the revolution speed and detects malfunctions.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0C73 | 776 | The inverter water pump assembly revolution speed is abnormally high or low (or stop) for 1 minute or more. Or the inverter water pump assembly stops intermittently after abnormal revolution speed is detected. (1 trip detection logic) | Inverter cooling system Wire harness or connector Inverter water pump assembly Power management control ECU |
| DTC No. | Data List |
|---|---|
| P0C73-776 | Inverter W/P Revolution W/P Run Control Duty*1 Ready Signal |
RELATED DATA LIST
The following items can be helpful when performing repairs
Data List
- Inverter Coolant Water Temperature
- Ambient Temperature
- *1: This Data List item is related to the inverter water pump assembly.
| DTC No. | Active Test |
|---|---|
| P0C73-776 | Activate the Water Pump*2 |
RELATED ACTIVE TEST
- *2: This is an Active Test of the inverter water pump assembly.
MONITOR DESCRIPTION
The power management control ECU monitors revolution of the inverter water pump assembly. If there is an abnormality in revolution, the power management control ECU will illuminate the MIL and set a DTC.
Refer to the description for DTC P0A78-266. Refer to DESCRIPTION.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0C76 | 523 | The inverter voltage (VH) does not drop during discharge. (Discharge: Offsetting of the residual voltage pressure in the high-voltage side after ignition switch is turned off) (1 trip detection logic) | Inverter with converter assembly Wire harness or connector Power management control ECU |
HINT
When the ignition switch is turned off from ON (READY), the MG ECU applies current to motor (MG2) in a way that does not generate torque, in order to discharge the residual voltage in the inverter. When the hybrid system is normal, the VH value is almost 0 V after discharge. This DTC will be stored if the VH value is more than the specified value after discharge.
Scheme 190
| DTC No. | Data List |
|---|---|
| P0C76-523 | VL-Voltage before Boosting |
RELATED DATA LIST
The following items can be helpful when performing repairs
Data List
- Ready Signal
The power management control ECU receives a signal that indicates a collision from the airbag sensor assembly to detect a collision. After detecting a collision, the power management control ECU shuts off the high voltage systems for safety.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P1606 | 308 | Collision detection A block signal is received from the airbag sensor assembly. (1 trip detection logic) | Airbag sensor assembly Power management control ECU Supplemental restraint systems |
| 317 | Collision detection Multiple wiring malfunctions occur simultaneously. (1 trip detection logic) | Power management control ECU Supplemental restraint systems |
HINT
If P1606-308 or 317 is output, the vehicle cannot start unless the DTCs are cleared using the Techstream.
| DTC No. | Data List |
|---|---|
| P1606-308 | Collision Signal (Airbag) Normal Signal for A/B ECU |
| P1606-317 |
RELATED DATA LIST
The accelerator pedal position sensor is mounted on the accelerator pedal to detect how much the pedal is depressed. This is a non-contact sensor with hall elements. There are 2 outputs from the sensor. One is used to detect the accelerator pedal position and the other is used as a confirmation to allow the detection of a malfunction in the sensor itself. Voltage is output from the accelerator pedal position sensor to terminals VPA1 and VPA2 of the power management control ECU. This voltage varies from 0 to 5 V in accordance with the accelerator pedal position. Terminal VPA2 is primarily used to detect a malfunction in the sensor itself. The power management control ECU determines the current accelerator pedal position and controls the hybrid control system based on signals received by terminals VPA1 and VPA2.
Scheme 191
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P2120 | 152 | Main sensor circuit wiring malfunction or level is not stable Main sensor voltage is 0.4 V or less or 4.8 V or more for a certain period of time. (Both of the following conditions are met: The main sensor voltage is 0.4 V or less for a certain period of time and 4.8 V or more for a certain period of time.) (1 trip detection logic) | Wire harness or connector Accelerator pedal sensor assembly Power management control ECU |
| P2121 | 106 | Internal error of the main sensor Main sensor output changes rapidly (detected when there are no circuit malfunctions such as an open or short). (1 trip detection logic) | |
| P2122 | 104 | Open or short to GND in the main sensor circuit The main sensor voltage is 0.4 V or less for 0.5 seconds. (1 trip detection logic) | |
| P2123 | 105 | Short to +B in the main sensor circuit The main sensor voltage is 4.8 V or more for 2 seconds. (1 trip detection logic) | |
| P2125 | 153 | Sub sensor circuit wiring malfunction or level is not stable When the main sensor circuit is normal, the sub sensor voltage is 1.2 V or less or 4.8 V or more for a certain period of time. (Both of the following conditions are met: Sub sensor voltage is 1.2 V or less for a certain period of time, and the main sensor is normal and sub sensor voltage is 4.8 V or more for a certain period of time.) (1 trip detection logic) | |
| P2126 | 109 | Internal error of the sub sensor Sub sensor output changes rapidly (detected when there are no circuit malfunctions such as an open or short). (1 trip detection logic) | |
| P2127 | 107 | Open or short to GND in the sub sensor circuit The sub sensor voltage is 1.2 V or less for 0.5 seconds. (1 trip detection logic) | |
| P2128 | 108 | Short to +B in the sub sensor circuit Main sensor is normal and sub sensor voltage is 4.8 V or more for 2 seconds. (1 trip detection logic) | |
| P2138 | 110 | Difference between the main sensor value and sub sensor value is large. (1 trip detection logic) | |
| 154 | Main or sub sensor circuit wiring malfunction The difference in voltage between the main sensor and sub sensor is 0.02 V or less, or a low output malfunction continues in both the main and sub sensors for a certain period of time. (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P2120-152 | Accel Pedal Pos #1 Accel Pedal Pos #2 |
| P2121-106 | |
| P2122-104 | |
| P2123-105 | |
| P2125-153 | |
| P2126-109 | |
| P2127-107 | |
| P2128-108 | |
| P2138-110 | |
| P2138-154 |
RELATED DATA LIST
Scheme 192
Refer to the description for DTC P0069-273. Refer to DESCRIPTION.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P2228 | 268 | Open or short to GND in the atmospheric pressure sensor (1 trip detection logic) | Inverter with converter assembly |
| P2229 | 269 | Short to +B in the atmospheric pressure sensor (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P2228-268 | Atmosphere Pressure MAP |
| P2229-269 |
RELATED DATA LIST
This DTC indicates that the power management control ECU monitors the +B power source voltage to detect an instantaneous interruption.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P2511 | 149 | When the ignition switch to ON (READY), the power management control ECU is reset due to an instantaneous interruption of power source. (1 trip detection logic) | Wire harness or connector Power management control ECU |
w/ Smart Key System
The power source and HV CPU processors and their functions are integrated into the power management control ECU. The power source CPU and HV CPU use CAN communication to communicate with each other inside the power management control ECU. The power source CPU controls the opening and closing of the IG2 relay. The HV CPU detects that the IG2 relay is stuck ON (closed) based on relay operation information received from the power source CPU via CAN communication.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P2532 | 772 | Although the power management control ECU is sending a signal to open the IG2 relay, voltage is applied to the IG2 terminal. Although the power switch is turned off, the HV control system is not turned off. (1 trip detection logic) | Power management control ECU No. 1 integration relay (IG2 relay) Wire harness or connector |
w/o Smart Key System
The power management control ECU detects that the IG2 relay is stuck ON (closed) based on IG signals received from the main body ECU via CAN communication.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P2532 | 772 | When communication from ECUs with an IG1 power source is interrupted and power source voltage is still applied to terminal IG2. | Fuse (ECU-IG NO. 1, ECU-IG NO. 2) Wire harness or connector Instrument panel junction block assembly Power management control ECU No. 1 integration relay (IG2 relay) Ignition or starter switch assembly |
HINT
If DTC P2532-772 is stored, the vehicle will turn off.
Scheme 193
The power management control ECU alerts the driver and performs fail-safe control based on error signals received from the battery smart unit. This DTC is set when the SOC (state of charge) of the HV battery starts to drop as a result of leaving the shift lever in N, running out of fuel, or a malfunction in the hybrid control system.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3000 | 388 | Discharging prohibited Due to a problem such as an HV system malfunction, discharging of the HV battery continues even after discharging was prohibited when the SOC reached the low limit.. (1 trip detection logic) | Fuel level HV battery |
| DTC No. | Data List |
|---|---|
| P3000-388 | State of Charge (All Bat) Discharge Control Value Power Resource IB DC Inhibit Time |
RELATED DATA LIST
The following items can be helpful when performing repairs
Data List
- Engine Revolution
- Vehicle Spd
- Engine Run Time
- +B
- Ready Signal
- Power Resource VB
- Shift Sensor Shift Pos
- SOC after IG-ON
- Status of Charge Max
- Status of Charge Min
Operation History Data
- Main Battery Low Voltage
The power management control ECU alerts the driver and performs fail-safe control based on error signals received from the battery smart unit.
This DTC is set if the HV battery is discharged excessively or the hybrid control system malfunctions.
HINT
If the HV battery voltage has dropped due to a malfunction in other components such as the inverter with converter assembly or the hybrid vehicle transaxle assembly, recharging the HV battery will restore the voltage. If the HV battery voltage has dropped excessively after the vehicle was left for a long time, the HV battery will need to be replaced.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3000 | 389 | Malfunction is received from the battery voltage sensor Voltage of a battery block drops drastically. (1 trip detection logic) | Engine Hybrid vehicle transaxle assembly HV battery |
| DTC No. | Data List |
|---|---|
| P3000-389 | Battery Block Vol -V01 to V16 State of Charge (All Bat) Power Resource VB Power Resource IB Engine Revolution |
RELATED DATA LIST
The following items can be helpful when performing repairs
Data List
- Vehicle Spd
- Engine Run Time
- +B
- Ready Signal
- Shift Sensor Shift Pos
- SOC after IG-ON
- Status of Charge Min
Operation History Data
- Main Battery Low Voltage
The power management control ECU monitors its internal operation and detects the following malfunction.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3000 | 603 | The HV battery temperature becomes too high due to a malfunction in the HV system. (1 trip detection logic) | Power management control ECU HV battery |
| DTC No. | Data List |
|---|---|
| P3000-603 | Temp of Batt TB1 to TB3 Inhaling Air Temp Ambient Temperature Power Resource IB State of Charge (All Bat) Cooling Fan Mode1 Cooling Fan 0 Hot Temperature Time |
RELATED DATA LIST
The following items can be helpful when performing repairs
Data List
- Vehicle Spd
- Engine Run Time
- Ready Signal
Refer to the description for DTC P0AE6-225. Refer to DESCRIPTION.
The power management control ECU monitors the high-voltage wiring between the HV battery and the inverter with converter assembly and detects the following malfunction.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3004 | 131 | Although an SMR on request was sent when the ignition switch is operated, the voltage after boosting did not increase. High-voltage circuit malfunctions between the HV battery and inverter with converter assembly. The EV electric battery fuse is blown, the service plug grip is removed, the system main resistor is blown, SMRG is turned off, SMRP or SMRB remains open, or the high-voltage cable has an open circuit. (2 trip detection logic) | Hybrid battery junction block assembly Frame wire Inverter with converter assembly HV battery Wire harness or connector |
HINT
The DTC is stored when the EV electric battery fuse is blown, the service plug grip is removed, the system main resistor is blown or SMRP or SMRB remains open.
| DTC No. | Data List |
|---|---|
| P3004-131 | VH-Voltage after Boosting Power Resource VB |
RELATED DATA LIST
The following items can be helpful when performing repairs
Data List
- Ready Signal
- VL-Voltage before Boosting
- Inter Lock Switch
- SMRP Status
- SMRB Status
- SMRG Status
- SMRP Control Status
- SMRB Control Status
- SMRG Control Status
Refer to the description for DTC P0AE6-225. Refer to DESCRIPTION.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3004 | 132 | Although an SMR on request was sent when the ignition switch is operated, the voltage did not increase after boosting. High-voltage circuit malfunctions between the HV battery and inverter with converter assembly. The EV electric battery fuse is blown, the service plug grip is removed, the system main resistor is blown, SMRG is turned off, SMRP or SMRB remains open, or the high-voltage cable has an open circuit. (1 trip detection logic) | Hybrid battery junction block assembly Frame wire Inverter with converter assembly Power management control ECU HV battery Wire harness or connector |
HINT
The DTC is stored when the EV electric battery fuse is blown, the service plug grip is removed, the system main resistor is blown or SMRP or SMRB remains open.
| DTC No. | Data List |
|---|---|
| P3004-132 | VH-Voltage after Boosting Power Resource VB |
RELATED DATA LIST
The following items can be helpful when performing repairs
Data List
- Ready Signal
- VL-Voltage before Boosting
- Inter Lock Switch
- SMRP Status
- SMRB Status
- SMRG Status
- SMRP Control Status
- SMRB Control Status
- SMRG Control Status
The power management control ECU monitors its internal operation, it will set DTCs and perform fail-safe control when it detects the following malfunctions.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3004 | 133 | Battery overcurrent or overload current occurs due to a malfunction in the high-voltage circuit between the hybrid system, battery and inverter. (1 trip detection logic) | Power management control ECU |
| DTC No. | Data List |
|---|---|
| P3004-133 | Power Resource IB Power Resource VB VL-Voltage before Boosting VH-Voltage after Boosting |
RELATED DATA LIST
The following item can be helpful when performing repairs
Data List
- Ready Signal
Refer to the description for DTC P0AE6-225. Refer to DESCRIPTION.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3004 | 800 | High-voltage circuit malfunctions between the HV battery and inverter with converter assembly. Excessive overcurrent occurs during precharge (time from when SMRP turns on until SMRG turns on). (1 trip detection logic) | Wire harness or connector No. 4 engine wire Compressor with motor assembly Inverter with converter assembly Hybrid battery junction block assembly Frame wire Power management control ECU |
| 801 | High-voltage circuit malfunctions between the HV battery and inverter with converter assembly. Minimal overcurrent occurs during precharge (time from when SMRP turns on until when SMRG turns on). (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P3004-800 | VH-Voltage after Boosting Power Resource VB |
| P3004-801 |
RELATED DATA LIST
The following items can be helpful when performing repairs
Data List
- VL-Voltage before Boosting
- Power Resource IB
- Ready Signal
Refer to the description for DTC P0AE6-225. Refer to DESCRIPTION.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3004 | 803 | High-voltage circuit malfunctions between the HV battery and inverter with converter assembly. When the power switch is on (READY), both "VLVoltage before Boosting" and "VH-Voltage after Boosting" drop abnormally. The EV electric battery fuse is blown, the service plug grip is removed, SMRB or SMRG remains open, or the highvoltage cable has an open circuit. (1 trip detection logic) | Hybrid battery junction block assembly Wire harness or connector |
| DTC No. | Data List |
|---|---|
| P3004-803 | VH-Voltage after Boosting VL-Voltage before Boosting Power Resource VB Power Resource IB |
RELATED DATA LIST
The following item can be helpful when performing repairs
Data List
- Ready Signal
- The power management control ECU detects a problem in the collision signal line from the airbag sensor assembly and alerts the driver.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3107 | 213 | Short to GND in the communication circuit Communication from the airbag sensor assembly stopped and Circuit Low has been detected for a certain period. (1 trip detection logic) | Wire harness or connector Airbag sensor assembly Power management control ECU |
| DTC No. | Data List |
|---|---|
| P3107-213 | Collision Signal (Airbag) |
RELATED DATA LIST
Scheme 194
- Refer to the description for DTC P3107-213. Refer to «DESCRIPTION»(ref-651315-S27210314542014081900000).
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3107 | 214 | Open or short to +B in the communication circuit (1 trip detection logic) | Wire harness or connector Airbag sensor assembly Power management control ECU |
| DTC No. | Data List |
|---|---|
| P3107-214 | Collision Signal (Airbag) |
RELATED DATA LIST
Refer to the description for DTC P3107-213. Refer to DESCRIPTION.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3107 | 215 | Abnormal communication signal Communication from the airbag sensor assembly stopped and High output stuck has been detected for a certain period. (1 trip detection logic) | Wire harness or connector Airbag sensor assembly Power management control ECU |
| DTC No. | Data List |
|---|---|
| P3107-215 | Collision Signal (Airbag) |
RELATED DATA LIST
- The power management control ECU detects a wiring malfunction in the serial communication line between it and the compressor with motor assembly.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3108 | 536 | Communication error (air conditioning system to hybrid control system). Error in communication data from the A/C inverter. Although an air conditioning inverter shutdown signal is sent, the air conditioning inverter does not shutdown. (1 trip detection logic) | Wire harness or connector Compressor with motor assembly Power management control ECU |
| DTC No. | Data List |
|---|---|
| P3108-536 | A/C Consumption Pwr Aircon Gate Status |
RELATED DATA LIST
Scheme 195
The power management control ECU monitors the IGCT relay and detects the following malfunction.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3110 | 223 | IGCT relay stuck on (+B short) IGCT relay is stuck on or a short to B+ exists. Power to the HV ECU does not shut down when the ignition switch is turned off. (1 trip detection logic) | Wire harness or connector IGCT relay Power management control ECU |
Scheme 196
The hybrid vehicle transaxle assembly consists of the power split planetary gear unit, generator, motor, and the motor speed reduction planetary gear unit. The power split planetary gear unit uses a planetary gear to split engine output in accordance with driving requests while the vehicle is driven or the HV battery is charged. motor assists engine output while increasing vehicle drive force. motor also converts the energy, which would otherwise be consumed in the form of heat during normal braking, into electrical energy. This recovered energy is put back into the HV battery to perform regenerative braking. MG1 generates power, which is used for charging the HV battery or driving motor, and also regulates the amount of electricity being generated. In addition, generator is used as a starter motor to start the engine.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3147 | 239 | Drive force from motor (MG2) or the engine cannot be transmitted to the wheels. The engine, generator (MG1), motor (MG2) or hybrid vehicle transmission assembly does not run smoothly due to a mechanical malfunction. (1 trip detection logic) | Engine Hybrid vehicle transaxle assembly Wire harness or connector Power management control ECU Transmission input damper assembly |
| 241 | Hybrid vehicle transmission malfunction (input system lock) When the vehicle is stopped, an engine cranking signal is sent but the generator (MG1) does not rotate. Generator (MG1) or the engine does not rotate, or the planetary gear unit is malfunctioning. (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P3147-239 | Motor(MG2) Revolution Motor(MG2) Torq M(MG2) Trq Exec Val Generator(MG1) Rev Generator(MG1) Torq G(MG1) Trq Exec Val Engine Revolution Calculate Load |
| P3147-241 |
RELATED DATA LIST
The following items can be helpful when performing repairs
Data List
- Ready Signal
- Vehicle Spd
- Accelerator Degree
- Shift Sensor Shift Pos
Refer to the description for DTC P3147-239. Refer to DESCRIPTION.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P3147 | 240 | Generator (MG1) locked Generator (MG1) does not rotate when the vehicle is being driven in EV drive mode. (1 trip detection logic) | Hybrid vehicle transaxle assembly |
| 242 | Planetary gear locked The 3 planetary gears rotate all together, not individually. The planetary gear carrier is seized. (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P3147-240 | Motor(MG2) Revolution Motor(MG2) Torq M(MG2) Trq Exec Val Generator(MG1) Rev Generator(MG1) Torq G(MG1) Trq Exec Val Engine Revolution Calculate Load |
| P3147-242 |
RELATED DATA LIST
The following items can be helpful when performing repairs
Data List
- Ready Signal
- Vehicle Spd
- Accelerator Degree
- Shift Sensor Shift Pos
Refer to the description for DTC P0C73-776. Refer to DESCRIPTION.
The inverter water pump assembly sends the water pump speed (measured value) signal to the power management control ECU. If the inverter water pump speed (measured value) signal is not sent to the power management control ECU when the power switch is on (READY), this DTC is stored.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P314A | 828 | The water pump speed signal is not sent to the power management control ECU when the ignition switch is turned on (READY) or water pump revolution speed is extremely low or stop.*1 (1 trip detection logic) | Wire harness or connector Power management control ECU Inverter water pump assembly IGCT NO. 3 fuse |
- *1: Malfunction (open, short to +B or short to ground) in the speed signal line from the inverter water pump assembly or inverter water pump assembly power source circuit malfunction is suspected.
- A malfunction (open, short to +B or short to ground) in the speed signal line from the inverter water pump assembly to the power management control computer is detected.
- A malfunction in the inverter water pump assembly power source circuit is detected.
- A malfunction in the +B line or speed signal line to the inverter water pump assembly is detected.
- A malfunction in the inverter water pump assembly power source circuit or power management control computer power source circuit is detected.
| DTC No. | Data List |
|---|---|
| P314A-828 | Inverter W/P Revolution*2 W/P Run Control Duty*2 Ready Signal |
RELATED DATA LIST
- *2: This Data List item is related to the inverter water pump assembly.
| DTC No. | Active Test |
|---|---|
| P314A-828 | Activate the Water Pump*3 |
RELATED ACTIVE TEST
- *3: This is an Active Test of the inverter water pump assembly.
The power management control ECU monitors speed of the inverter water pump assembly. If the water pump speed signal is not sent to the power management control ECU, the power management control ECU will illuminate the MIL and set a DTC.
The power management control ECU sends a block signal to the motor generator control ECU (MG ECU) to shutdown the power supply to the motor. When the system is not in the on (READY) state, it sends an HSDN (MG shutdown signal) signal from the power management control ECU to the motor generator control ECU (MG ECU) to check the function of the HV gate block. When a malfunction is detected in the HV gate block function, DTCs are stored.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P321E | 318 | An open or ground short in the HV gate block signal circuit when the gate is operating. When the HV gate block function check is performed (when the ignition switch is turned from on (READY) to off), the inverter voltage (VH) drops and current flows in the inverter. (Both generator (MG1) and motor (MG2) are malfunctioning.) (1 trip detection logic) | Wire harness or connector Power management control ECU Inverter with converter assembly |
| DTC No. | Data List |
|---|---|
| P321E-318 | VH-Voltage after Boosting Ready Signal Emergency Shutdown |
RELATED DATA LIST
Scheme 197
Refer to the description for DTC P321E-318. Refer to DESCRIPTION.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P321F | 319 | An open or ground short in the HV gate block signal circuit when the gate is operating When the HV gate block function check is performed (when the ignition switch is turned from on (READY) to off), the inverter voltage (VH) drops and current flows in the inverter. (Either generator (MG1) or motor (MG2) is malfunctioning.) (1 trip detection logic) | Inverter with converter assembly |
| DTC No. | Data List |
|---|---|
| P321F-319 | VH-Voltage after Boosting Ready Signal Emergency Shutdown |
RELATED DATA LIST
If the MG ECU located in the inverter with converter assembly is reset due to a problem with the power source in the inverter, the power management control ECU will set this DTC.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P324E | 788 | Error in reset signal from the inverter assembly power source IC If internal power source voltage drops below the normal CPU operating voltage or the ROM/RAM is malfunctioning, the power source IC resets the MG ECU and stores this DTC. (1 trip detection logic) | Wire harness or connector Inverter with converter assembly Power management control ECU |
Scheme 198
- The power management control ECU transmits and receives signals via CAN communication to and from the ECM, skid control ECU assembly, main body ECU, airbag sensor assembly, and air conditioning amplifier assembly.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0100 | 530 | Problem with CAN communication between the ECM and power management control ECU (CAN communication system malfunction) (1 trip detection logic) | CAN communication system |
| U0129 | 527 | Problem with CAN communication (V BUS) between the skid control ECU assembly and power management control ECU (CAN communication system malfunction) (1 trip detection logic) | |
| 528 | Problem with CAN communication between the skid control ECU assembly and power management control ECU (CAN communication system malfunction) (1 trip detection logic) | ||
| U0140 | 146 | Problem with CAN communication between the main body ECU and power management control ECU (CAN communication system malfunction) (1 trip detection logic) | |
| U0151 | 763 | Problem with CAN communication between airbag sensor assembly and power management control ECU (CAN communication system malfunction) (1 trip detection logic) | |
| U0164 | 827 | Problem with CAN communication between air conditioning amplifier assembly and power management control ECU (CAN communication system malfunction) (1 trip detection logic) | |
| U1107 | 436 | Problem with CAN communication between the power source ECU and power management control ECU (CAN communication system malfunction) (1 trip detection logic) |
If the power management control ECU detect problem with CAN communication with the ECU, it will illuminate the MIL and set a DTC.
- For a description of the inverter. Refer to «DESCRIPTION»(ref-651327-S31105488832014081900000). The MG ECU, which is built into in the inverter with converter assembly, controls motor (MG2) based on commands from the power management control ECU. The MG ECU monitors communication data and detects malfunctions. The power management control ECU monitors communication data and detects malfunctions. A communication error between the MG ECU and power management control ECU.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0110 | 159 | Error in reception from inverter with converter assembly (MG ECU) via serial communication (out of communication standard) (1 trip detection logic) | Wire harness or connector Inverter with converter assembly Motor cable Hybrid vehicle transaxle assembly Power management control ECU PCU fuse |
| 656 | Error in reception from inverter with converter assembly (MG ECU) via serial communication (out of communication standard) (1 trip detection logic) | ||
| 657 | Error in reception from inverter with converter assembly (MG ECU) via serial communication (no reception) (1 trip detection logic) |
The MG ECU, which is built into in the inverter with converter assembly, controls motor (MG2) based on commands from the power management control ECU.
The motor generator control ECU (MG ECU) monitors communication data and detects malfunctions. A communication error between the MG ECU and power management control ECU is detected.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0110 | 160 | Error in signal transmission to the inverter with converter assembly (MG ECU) via serial communication (no transmission, out of communication standard) (1 trip detection logic) | Wire harness or connector Inverter with converter assembly Hybrid vehicle transaxle assembly Motor cable Power management control ECU |
If there is a malfunction in the air conditioning amplifier assembly, DTC U0424-537 will be stored.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0424 | 537 | Air conditioning amplifier assembly malfunction The power management control ECU receives a communication error signal from the air conditioning amplifier assembly. (1 trip detection logic) | Air conditioning amplifier assembly |
If ISC learning has not been performed, noise may occur in the hybrid vehicle transaxle assembly.
If noise occurs, initialize the learned values and perform idle learning.
When the vehicle is being driven with the accelerator pedal depressed, depressing the brake pedal without releasing the accelerator pedal will activate the brake override system to restrict driving torque. The conditions for activating the brake override system as well as the items that are controlled are explained below.
Scheme 199
Activation Conditions
- Vehicle is being driven at or above a specified speed.
- The accelerator pedal is depressed beyond a specified level, and then the brake pedal is depressed.
Note. Brake override control may not be performed depending on the relationship between accelerator pedal angle and vehicle speed.
Items Controlled
- Driving torque is restricted.
HINT
During brake override system control, the value for the accelerator pedal angle (which is used for hybrid control) is forcibly reduced to a specified value. For this reason, the Data List value for Accelerator Degree (the value used for driving torque control) will be replaced with a specified value regardless of the actual accelerator pedal angle (Accel Pedal Pos #1, Accel Pedal Pos #2).
Deactivation Conditions
Deactivation occurs when either of the following conditions is met
- The master cylinder pressure decreases below a specified value.
- The actual accelerator pedal angle increases or decreases beyond the specified range.
The EV drive mode signal is sent to the power management control ECU. This signal is then transmitted from the power management control ECU via CAN to the combination meter assembly to illuminate the EV mode indicator light.
Scheme 200
When selecting ECO drive mode, the ECO mode switch (eco switch assembly) operation signal is sent to the air conditioning amplifier assembly. Following this, ECO drive mode control is activated for the heater and air conditioning system.
Scheme 201
If the ignition switch is on (IG), the power management control ECU applies current to the MREL terminal to turn the IGCT relay on. This supplies power to the +B1 and +B2 terminals.
Scheme 202
See also:
• COMPONENTS [12/2013 - ]
• REMOVAL [12/2013 - ] - Step 7