OPERATION HISTORY DATA [12/2013 - ]
- OPERATION HISTORY DATA HINT: The power management control ECU records inappropriate operations performed by the driver and the number of abnormal conditions that have been input to the ECU as operation history data. Connect the Techstream to the DLC3. Turn the ignition switch to ON (IG). Turn the Techstream on. Enter the following menus: Powertrain / Hybrid Control / Data List. Enter the menu to view the number of inappropriate operations or controls that have been performed. HINT: Latest Operation: Among the past occurrences, the number of inappropriate operations or controls that have been performed during the most recent 1 trip detection. Latest Trip: The number of trips after the occurrence of Latest Operation. Operation before Latest: The number of occurrences during the trip previous to the Latest Operation. Trip before Latest: The number of trips after the occurrence of Operation before Latest. INAPPROPRIATE OPERATION AND HISTORY DATA Tester Display Count Condition Shift Gear before READY Shift lever moved with READY indicator blinking N Range Control in Half Shift Shift position cannot be determined N Range Control by Busy Shift N position control performed due to frequent shifting operation Step Accelerator in N Range Accelerator pedal depressed in N position Auxiliary Battery Low Auxiliary battery voltage below 9.5 V (Ignition switch cannot be turned ON (READY)) HV ECU Intermittent Problems Instantaneous open circuit at +B terminal of power management control ECU MG2 (Motor) Temperature High Motor (MG2) temperature exceeded 162°C(323.6°F) MG1 (Generator) Temperature High Generator (MG1) temperature exceeded 168°C(384.4°F) MG2 (Motor) Inverter Temperature High Motor inverter temperature rose and HV system overheat was indicated MG1 (Generator) Inverter Temperature High Generator inverter temperature rose and HV system overheat was indicated Main Battery Low Voltage HV battery state of charge dropped below 30% Resistor Over Heat System main resistor that is connected to SMRP (precharge system main relay) was overheated Coolant Heating HV coolant temperature exceeded 65°C (149°F) Converter Heating Boost converter temperature rose and HV system overheat was indicated Shift Backward Direction Shifted to R while moving forward or to D or B while moving in reverse Prevention Control of Staying Engine speed stays in resonance frequency band Accelerator and Brake Depress Both accelerator and brake pedals depressed
DESCRIPTION
The atmospheric pressure sensor mounted on the MG ECU circuit board detects the atmospheric pressure. This reading is used to perform system control that considers vehicle usage conditions.
Scheme 226
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0069 | 273 | Difference between the atmospheric pressure value of the atmosphere pressure sensor in the inverter with converter assembly and the manifold absolute pressure sensor assembly exceeds a specified value and the same condition recurs after 3 hours or more when driving in EV drive mode. (1 trip detection logic) | Inverter with converter assembly Manifold absolute pressure sensor ECM Wire harness or connector |
| DTC No. | Data List |
|---|---|
| P0069-273 | MAP Atmosphere Pressure |
RELATED DATA LIST
Scheme 227
The MG ECU stores this DTC when the cam position signal pulse input from the ECM is abnormal.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0343 | 747 | GI signal is not input for 2 sec. or more while the engine is running.* (1 trip detection logic) | SFI system Inverter with converter assembly ECM Wire harness or connector |
HINT
*: When this DTC is stored, vibration may occur when the engine is stopped.
| DTC No. | Data List |
|---|---|
| P0343-747 | Crank Position Engine Revolution |
RELATED DATA LIST
Scheme 228
- Battery power is constantly supplied to the BATT terminal of the power management control ECU to allow DTCs and freeze frame data to be retained in memory even though the ignition switch is turned off. The back-up power is supplied even when the ignition switch is off.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0560 | 117 | Malfunction in the power management control ECU back-up power source circuit (1 trip detection logic) | Auxiliary battery ECU-B NO. 2 fuse Wire harness or connector Power management control ECU |
| DTC No. | Data List |
|---|---|
| P0560-117 | +B |
RELATED DATA LIST
MONITOR DESCRIPTION
If a period of time has elapsed with a low voltage at the BATT terminal of the power management control ECU, the hybrid vehicle control ECU will determine that a malfunction has occurred in the back-up power supply system, and set a DTC. The MIL will illuminate the next time the engine is started.
The power management control ECU monitors its internal operation and it will set this DTC when it detects an internal malfunction. If this DTC is output, replace the power management control ECU.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P060B | 134 | ECU internal malfunction (Built-in ADC failure) (1 trip detection logic) | Power management control ECU |
| 135 | |||
| 570 |
The power management control ECU performs diagnostic tests to verify proper operation of internal ECU systems. One of these monitors the rationality of internal analog (signal) to digital conversions. The power management control ECU monitors the internal A/D (Analog/Digital converter) value. If there is an A/D converter malfunction, the power management control ECU will illuminate the MIL and set a DTC.
The power management control ECU monitors the ST signal received from the ignition or starter switch assembly. When an error is detected in the ST signal, this DTC is stored.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0617 | 142 | Although the ignition switch is off, the power management control ECU receives a ST signal. (1 trip detection logic) | Power management control ECU Wire harness or connector Ignition or starter switch assembly |
Scheme 229
The power management control ECU monitors its internal operation and it will set this DTC when it detects an internal malfunction. If this DTC is output, replace the power management control ECU.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P062F | 143 | ECU internal error (EEPROM error) (1 trip detection logic) | Power management control ECU |
| 165 |
The power management control ECU monitors its internal operation. If the internal operation is malfunctioning, the power management control ECU illuminates the MIL and sets a DTC.
The power management control ECU monitors voltage of 5 V power supply (VC) used for the sensors. If the power management control ECU detects a malfunction, it will set a DTC.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P06A4 | 209 | VC power-supply voltage is lower than 4.2 V (1 trip detection logic) | Power management control ECU |
| P06A5 | 210 | VC power-supply voltage is higher than 5.8 V (1 trip detection logic) |
The shift lever position sensor can send 7 different switch signals to the power management control ECU. The power management control ECU uses the signals to detect the shift lever position (P, R, N, D, or B). The power management control ECU also uses this information to determine intended direction of travel (forward or reverse).
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0705 | 757 | Shift sensor circuit malfunction (abnormal pattern) A malfunction in the P, R, N, D or B circuit is detected based on the shift sensor input pattern. (1 trip detection logic) | Wire harness or connector Shift lever position sensor Power management control ECU |
| DTC No. | Data List |
|---|---|
| P0705-757 | Shift Sensor Shift Pos Shift Sensor SW-P Shift Sensor SW-R Shift Sensor SW-PR Shift Sensor SW-N Shift Sensor SW-DB1 Shift Sensor SW-DB2 Shift Sensor SW-PNB |
RELATED DATA LIST
Scheme 230
The power management control ECU detects HV coolant temperature using the coolant temperature sensor built into the inverter with converter assembly. The power management control ECU uses signals from the coolant temperature sensor to check the effectiveness of the inverter cooling system. If necessary, the power management control ECU will limit inverter output to help prevent inverter overheating. The power management control ECU also detects malfunctions in the sensor based on the HV coolant temperature sensor values. The inverter with converter assembly detects malfunctions in the HV coolant temperature sensor and its wiring.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A01 | 726 | Abnormal deviation in inverter coolant temperature sensor output. Both of the following conditions are met for 10 seconds or more: The difference between the estimated coolant (for inverter) temperature and the temperature sensor output is large. Coolant (for inverter) temperature is too high. (1 trip detection logic) | Inverter cooling system Cooling fan system Inverter with converter assembly |
| P0A04 | 725 | Sudden change in HV coolant temperature sensor output or hunting: Unusual sudden change in HV coolant temperature sensor output occurs and the offset continues for a certain period of time. Unusual sudden change in HV coolant temperature sensor output occurs repeatedly. (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P0A01-726 | Inverter Coolant Water Temperature Ambient Temperature W/P Run Control Duty Inverter W/P Revolution |
| P0A04-725 |
RELATED DATA LIST
Refer to the description for DTC P0A01-726. Refer to DESCRIPTION.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A02 | 719 | Short to GND in the HV coolant temperature sensor circuit (1 trip detection logic) | Inverter with converter assembly |
| P0A03 | 720 | Open or short to +B in the HV coolant temperature sensor circuit (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P0A02-719 | Inverter Coolant Water Temperature |
| P0A03-720 |
RELATED DATA LIST
The DC/DC converter converts the DC 144 V of the HV battery into DC 12 V in order to supply power to areas such as the vehicle's lighting, audio, and ECU systems. In addition, it charges the auxiliary battery. A transistor bridge circuit initially converts DC 144 V into alternating current, and a transformer lowers its voltage. Then, it is rectified and smoothed (into DC) and converted into DC 12 V. The DC/DC converter controls the output voltage in order to keep a constant voltage at the terminals of the auxiliary battery.
The power management control ECU uses the NODD signal line to transmit a stop command to the DC/DC converter and receive signals indicating the normal or abnormal condition of the 12 V charging system. If the vehicle is being driven with an inoperative DC/DC converter, the voltage of the auxiliary battery will drop, which will prevent the continued operation of the vehicle. Therefore, the power management control ECU monitors the operation of the DC/DC converter and alerts the driver if it detects a malfunction.
Scheme 231
This DTC is stored when the DC/DC converter circuit has a malfunction or its operation is prohibited by a fail-safe function, or the auxiliary battery voltage drops to 11 V or less with the ignition switch to ON (READY). A signal indicating an auxiliary battery malfunction is sent from the DC/DC converter to the power management control ECU via the NODD signal line.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area | Master Warning Light | MIL |
|---|---|---|---|---|---|
| P0A08 | 264 | The DC/DC converter is malfunctioning (charging has stopped) or the auxiliary battery voltage drops to 11 V or less. (1 trip detection logic) | Wire harness or connector Inverter cooling system Hybrid vehicle transaxle assembly Motor cable Inverter with converter assembly Fusible link (DC/DC) Power management control ECU | Comes on | Does not come on |
| DTC No. | Data List |
|---|---|
| P0A08-264 | +B Inverter Coolant Water Temperature Inverter Temp- (MG1) Inverter Temp- (MG2) Motor Temp No1 Motor Temp No2 Short Wave Highest Val |
RELATED DATA LIST
The following items can be helpful when performing repair
Data List
- Ready Signal
- State of Charge (All Bat)
- Prohibit DC/DC conv sig
Operation History Data
- Coolant Heating
- Auxiliary Battery Low
HINT
- If the NODD signal line is open or shorted to ground, DC/DC converter control will be prohibited and the auxiliary battery voltage will be approximately 12 V (or less).
- When the transistor in the power management control ECU is on, a signal is sent to the inverter via the NODD signal circuit to prohibit DC/DC converter control. When the transistor in the inverter is on, a malfunction signal is sent to the power management control ECU.
Scheme 232
Refer to the wiring diagram for DTC P0AA6-526. Refer to WIRING DIAGRAM.
Refer to the description for DTC P0A08-264. Refer to DESCRIPTION.
If the power management control ECU detects a malfunction related to the DC/DC converter, it uses the NODD signal line to transmit a stop command to the DC/DC converter. The power management control ECU also receives signals indicating a normal or abnormal condition of the 12 V charging system from the inverter with converter assembly.
If the vehicle is being driven with an inoperative DC/DC converter, the voltage of the auxiliary battery will drop, which will prevent the continued operation of the vehicle. Therefore, the power management control ECU monitors the operation of the DC/DC converter and alerts the driver if it detects a malfunction.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A09 | 265 | Open or GND short in NODD signal circuit of DC/DC converter (1 trip detection logic) | Wire harness or connector Inverter with converter assembly Power management control ECU |
The DC/DC converter varies output voltage based on voltage change signals (VLO signal line) received from the power management control ECU.
If the vehicle is being driven with an inoperative DC/DC converter, the voltage of the auxiliary battery will drop, which will prevent the continued operation of the vehicle. Therefore, the power management control ECU monitors the operation of the DC/DC converter and alerts the driver if it detects a malfunction.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A09 | 591 | Open or short to ground in the signal line of DC/DC converter (VLO) (1 trip detection logic) | Wire harness or connector Inverter with converter assembly Power management control ECU |
Scheme 233
- When the power management control ECU detects that a safety device (interlock) is operated, such as when the service plug grip, inverter terminal cover or connector cover assembly is removed, it will prohibit hybrid system operation or shut off the system main relay. There are three safety devices in three different locations. The first safety device is located at the service plug grip. The second one is located at the frame wire that is connected to the inverter with converter assembly. The third one is located at the inverter terminal cover where the motor cable is connected to the inverter with converter assembly. If the service plug grip, inverter terminal cover, or frame wire is removed, the interlock signal line will be open. If the vehicle is being driven, this condition will be determined to be an open circuit and the system main relays will not be shut off. If the safety devices are re-installed correctly, the system will return to normal when the ignition switch is turned on (IG).
- The system main relay will be turned off from the next trip after the open is detected until the condition returns to normal.
| DTC No. | INF Code | DTC Detection Condition | Trouble Are |
|---|---|---|---|
| P0A0D | 350 | Either of the following conditions is met: With the vehicle stopped, the service plug grip, inverter terminal cover or another part with a safety device was removed. With the vehicle stopped, the interlock signal line became open. (1 trip detection logic) | Wire harness or connector Power management control ECU Service plug grip Inverter with converter assembly Frame wire Inverter terminal cover |
| P0A0D | 351 | Interlock signal line opens while the vehicle is being driven (at 5 km/h or more) (1 trip detection logic) |
Scheme 234
If an engine malfunction occurs, an engine malfunction signal is sent from the ECM to the management control ECU. When the power management control ECU receives this signal, it sets a DTC and performs fail-safe control.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A0F | 204 | Signal indicating abnormality is received from the ECM (abnormal engine output) Actual engine torque is very low compared to the target torque. (1 trip detection logic) | SFI system |
| 205 | Signal indicating abnormality is received from the ECM (engine unable to start) (1 trip detection logic) | ||
| 206 | Signal indicating abnormality is received from the ECM (engine component malfunctioning, drop in torque) (1 trip detection logic) | ||
| 524 | Signal indicating abnormality is received from the ECM (abnormal NE signal) (1 trip detection logic) | ||
| 525 | Signal indicating abnormality is received from the ECM (abnormal GI signal) (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P0A0F-204 | Main Request Power Actual Engine Torque (SFI System) Engine Revolution Generator(MG1) Torq Generator(MG1) Rev |
| P0A0F-205 | |
| P0A0F-206 | |
| P0A0F-524 | Engine Revolution |
| P0A0F-525 | Engine Revolution Crank Position |
RELATED DATA LIST
The following items can be helpful when performing repairs
Data List
- Ready Signal
- State of Charge (All Bat)
- +B
HINT
- The power management control ECU stores DTC P0A0F-204, 205, 206, 524 or 525 when it receives a signal from the ECM indicating abnormal engine power, engine starting malfunction, engine performance deterioration (running out of fuel), crank angle sensor circuit DTCs or cam position sensor circuit DTCs.
- If the engine cannot start, the vehicle is driven using EV drive mode. However, if the vehicle is continuously driven using only EV drive mode, the HV battery will be discharged and the vehicle will not be able to be driven.
- If any of these DTCs are output, it is required to repair the EFI system in accordance with the DTC or to add a sufficient amount of fuel. Hybrid control system DTCs SFI system related DTCs P0A0F-204 (Abnormal engine output) P3190 (Poor Engine Power) P0A0F-205 (Engine unable to start) P3191 (Engine does not Start) P0A0F-206 (Engine component malfunctioning, drop in torque) P0171 (System Too Lean(Bank 1)) P0172 (System Too Rich(Bank 1)) P0606 (ECM / PCM Processor) P060E (Internal Control Module Throttle Position Performance) P0A0F-524 (Abnormal NE signal) P0335 (Crankshaft Position Sensor "A" Circuit) P0A0F-525 (Abnormal GI signal) P0340 (Camshaft Position Sensor Circuit Malfunction)
If the power management control ECU detects that the engine or transaxle gear has seized, the power management control ECU will perform fail-safe control. Also, if a substance or object is preventing the engine or transaxle internal components from rotating, the power management control ECU will perform fail-safe control.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A0F | 238 | The engine does not start even though it is being cranked while driving (engine or transmission input components malfunction) (1 trip detection logic) | Hybrid vehicle transaxle assembly Transmission input damper assembly Power management control ECU Engine |
| DTC No. | Data List |
|---|---|
| P0A0F-238 | Engine Revolution Generator(MG1) Torq Generator(MG1) Rev Vehicle Spd Motor(MG2) Revolution |
RELATED DATA LIST
Scheme 235
Refer to the description for DTC P0A08-264. Refer to DESCRIPTION.
If the power management control ECU detects a malfunction related to the DC/DC converter, it uses the NODD signal line to transmit a stop command to the DC/DC converter. The power management control ECU also receives signals indicating a normal or abnormal condition of the 12 V charging system from the inverter with converter assembly.
If the vehicle is being driven with an inoperative DC/DC converter, the voltage of the auxiliary battery will drop, which will prevent the continued operation of the vehicle. Therefore, the power management control ECU monitors the operation of the DC/DC converter and alerts the driver if it detects a malfunction.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A10 | 263 | Short to +B in the DC/DC converter NODD signal line (1 trip detection logic) | Wire harness or connector Inverter with converter assembly Power management control ECU |
Refer to the description for DTC P0A09-591. Refer to DESCRIPTION.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A10 | 592 | Short to +B in the DC/DC converter VLO signal line (1 trip detection logic) | Wire harness or connector Inverter with converter assembly Power management control ECU |
The MG ECU located in the inverter with converter assembly monitors its internal operation and it will set DTCs when it detects malfunctions. If any of the following DTCs are output, replace the inverter with converter assembly.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A1A | 151 | MG ECU internal malfunction Run pulse signal cycle deviation or stop (1 trip detection logic) | Inverter with converter assembly |
| 155 | MG ECU internal malfunction A/D converter malfunction (1 trip detection logic) | ||
| 156 | MG ECU internal malfunction CPU ROM-RAM error (1 trip detection logic) | ||
| 658 | MG ECU internal malfunction Calculation check error (1 trip detection logic) | ||
| 659 | MG ECU internal malfunction Communication error (from generator (MG1) to motor (MG2)) (1 trip detection logic) | ||
| 791 | MG ECU internal malfunction R/D converter communication error (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P0A1A-791 | Generator (MG1) Rev |
| P0A1A-151 P0A1A-155 P0A1A-156 P0A1A-658 P0A1A-659 |
RELATED DATA LIST
The MG ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In one of those tests, the MG ECU checks the result of the generator CPU self-test. If the MG ECU detects a "Fail" from the generator CPU self-test, it will conclude that there is an internal malfunction in the generator CPU. The power management control ECU will illuminate the MIL and set a DTC.
The MG ECU located in the inverter with converter assembly monitors its internal operation and it will set DTCs when it detects malfunctions. If any of the following DTCs are output, replace the inverter with converter assembly.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A1A | 166 | MG ECU internal malfunction R/D converter NM stop error (1 trip detection logic) | Inverter with converter assembly |
The MG ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In this diagnostic monitor, the MG ECU checks for an R/D (Resolver/Digital Converter) malfunction involving the generator resolver. If MG ECU detects an R/D error, it will conclude that there is an internal malfunction involving the generator resolver. The power management control ECU will illuminate the MIL and set a DTC.
The MG ECU located in the inverter with converter assembly monitors its internal operation and detects the following malfunctions.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A1A | 200 | Generator resolver angle error The difference between the resolver angle for control and estimated resolver angle exceeds the allowable limit. (1 trip detection logic) | Inverter with converter assembly Hybrid vehicle transaxle assembly Wire harness or connector |
| 792 | Resolver REF signal cycle error Excitation signal (REF signal) for resolver angle detection cycle error (1 trip detection logic) | ||
| 793 | Resolver REF signal oscillation stop error An error is detected when the excitation signal (REF signal) for resolver angle detection is not output. (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P0A1A-200 | Generator (MG1) Rev |
| P0A1A-792 | |
| P0A1A-793 |
RELATED DATA LIST
The MG ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In this diagnostic monitor, the MG ECU checks for an R/D (Resolver/Digital Converter) malfunction involving the generator resolver. If MG ECU detects an R/D error, it will conclude that there is an internal malfunction involving the generator resolver. The power management control ECU will illuminate the MIL and set a DTC.
The MG ECU located in the inverter with converter assembly monitors its internal operation and it will set DTCs when it detects malfunctions. If any of the following DTCs are output, replace the inverter with converter assembly.
HINT
The term "drive motor A" indicates MG2.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A1B | 163 | MG ECU internal malfunction IPM positive power source error (1 trip detection logic) | Inverter with converter assembly |
| 164 | MG ECU internal malfunction IPM negative power source error (1 trip detection logic) | ||
| 192 | MG ECU internal malfunction A/D converter malfunction (1 trip detection logic) | ||
| 193 | MG ECU internal malfunction CPU ROM-RAM error (1 trip detection logic) | ||
| 511 | MG ECU internal malfunction Standard voltage for analog signal offset (+2.5 V) error (1 trip detection logic) | ||
| 512 | MG ECU internal malfunction Standard voltage for analog signal (+5 V) error (1 trip detection logic) | ||
| 661 | MG ECU internal malfunction Communication error (from motor (MG2) to generator (MG1)) (1 trip detection logic) | ||
| 786 | MG ECU internal malfunction Calculation check error (1 trip detection logic) | ||
| 794 | MG ECU internal malfunction R/D converter communication error (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P0A1B-794 | Motor (MG2) Revolution |
| P0A1B-163 P0A1B-164 P0A1B-192 P0A1B-193 P0A1B-511 P0A1B-512 P0A1B-661 P0A1B-786 |
RELATED DATA LIST
The MG ECU (in the inverter with converter assembly) performs many diagnostic tests to verify proper operation of internal ECU systems. In one of those tests, the MG ECU checks the result of the motor CPU self-test. If the MG ECU detects a "Fail" from the motor CPU self-test, it will conclude that there is an internal malfunction in the motor CPU. The power management control ECU will illuminate the MIL and set a DTC.
The MG ECU located in the inverter with converter assembly monitors its internal operation and detects malfunctions.
HINT
The term "drive motor A" indicates motor (MG2).
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A1B | 168 | Motor resolver angle error The difference between the resolver angle for control and estimated resolver angle exceeds the allowable limit. (1 trip detection logic) | Inverter with converter assembly Hybrid vehicle transaxle assembly Wire harness or connector |
| 795 | Resolver REF signal cycle error Excitation signal (REF signal) for resolver angle detection cycle error (1 trip detection logic) | ||
| 796 | Resolver REF signal oscillation stop error An error is detected when the excitation signal (REF signal) for resolver angle detection is not detected. (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P0A1B-168 | Motor (MG2) Revolution |
| P0A1B-795 | |
| P0A1B-796 |
RELATED DATA LIST
The MG ECU (in the inverter with converter assembly) performs many diagnostic tests to verify proper operation of internal ECU systems. In one of those tests, the MG ECU checks for an R/D (Resolver/ Digital converter) malfunction involving the motor resolver. If the MG ECU detects an R/D converter error, it will conclude that there is an internal malfunction involving the motor resolver. The power management control ECU will illuminate the MIL and set a DTC.
The MG ECU located in the inverter with converter assembly monitors its internal operation and it will set DTCs when it detects malfunctions. If any of the following DTCs are output, replace the inverter with converter assembly.
HINT
The term "drive motor A" indicates MG2.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A1B | 198 | MG ECU internal malfunction R/D converter NM stop error (1 trip detection logic) | Inverter with converter assembly |
The MG ECU (in the inverter with converter assembly) performs many diagnostic tests to verify proper operation of internal ECU systems. In one of those tests, the MG ECU checks for an R/D (Resolver/ Digital converter) malfunction involving the motor resolver. If the MG ECU detects an R/D converter error, it will conclude that there is an internal malfunction involving the motor resolver. The power management control ECU will illuminate the MIL and set a DTC.
The power management control ECU monitors its internal operation, it will set DTCs and perform fail-safe control when it detects the following malfunctions. If any of the following DTCs are output, replace the power management control ECU.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A1D | 144 | ECU internal error (1 trip detection logic) | Power management control ECU |
The power management control ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In one of these tests, the power management control ECU performs a self-test. If the power management control ECU detects an internal problem during this self-test, it will conclude that there is an internal malfunction. The power management control ECU will illuminate the MIL and set a DTC.
The power management control ECU monitors its internal operation, it will set DTCs and perform fail-safe control when it detects the following malfunctions. If any of the following DTCs are output, replace the power management control ECU.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A1D | 148 | ECU internal error (1 trip detection logic) | Power management control ECU |
The power management control ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In one of these tests, the power management control ECU performs a self-test. If the power management control ECU detects an internal problem during this self-test, it will conclude that there is an internal malfunction. The power management control ECU will illuminate the MIL and set a DTC.
The power management control ECU monitors its internal operation, it will set DTCs and perform fail-safe control when it detects the following malfunctions. If any of the following DTCs are output, replace the power management control ECU.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A1D | 162 | ECU internal error (1 trip detection logic) | Power management control ECU |
| 821 | |||
| 822 | |||
| 823 |
The power management control ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In one of these tests, the power management control ECU checks the communication bus off count and the message register of the CAN (Controller Area Network) controller. If the power management control ECU detects an error in the communication bus off count or message register, it will conclude that there is a malfunction in the power management control ECU. The power management control ECU will illuminate the MIL and set a DTC.
The power management control ECU monitors its internal operation, it will set DTCs and perform fail-safe control when it detects the following malfunctions. If any of the following DTCs are output, replace the power management control ECU.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A1D | 187 | ECU internal error (1 trip detection logic) | Power management control ECU |
The power management control ECU performs diagnostic tests to verify proper operation of internal and external ECU systems. In one of these tests, the power management control ECU monitors specific RAM circuits of the power management control ECU. If the power management control ECU detects an error in the RAM circuits, it will conclude that there is an internal malfunction in the power management control ECU. The power management control ECU will illuminate the MIL and set a DTC.
The power management control ECU monitors its internal operation, it will set DTCs and perform fail-safe control when it detects the following malfunctions. If any of the following DTCs are output, replace the power management control ECU.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A1D | 721 | ECU internal error (1 trip detection logic) | Power management control ECU |
| 722 | |||
| 723 | |||
| 787 | |||
| 818 |
The power management control ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In one of these tests, the power management control ECU checks the result of the ECM self-test. If the power management control ECU detects a "Fail" from the ECM self-test, it will conclude that there is an internal malfunction in the ECM. The power management control ECU will illuminate the MIL and set a DTC.
The resistance of the thermistor built into the motor temperature sensor changes in accordance with changes in motor (MG2) temperature. The lower the motor (MG2) temperature, the higher the thermistor resistance. Conversely, the higher the motor (MG2) temperature, the lower the resistance.
HINT
The term "drive motor A" indicates motor (MG2).
Scheme 236
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A2B | 250 | Motor temperature sensor output does not increase under conditions in which the value should increase, or output does not decrease under conditions in which the value should decrease. (1 trip detection logic) | Hybrid vehicle transaxle assembly (Motor temperature sensor) |
| P0A2E | 248 | Sudden change in motor temperature sensor output or hunting Unusual sudden change in motor temperature sensor output occurs and offset condition continues for a certain period of time, or unusual change in motor temperature sensor output occurs repeatedly. (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P0A2B-250 | Motor Temp No1 |
| P0A2E-248 |
RELATED DATA LIST
Refer to the description for DTC P0A2B-250. Refer to DESCRIPTION.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A2C | 247 | Short to GND or short in the motor temperature sensor circuit (1 trip detection logic) | Wire harness or connector Power management control ECU Hybrid vehicle transaxle assembly (Motor temperature sensor) |
| P0A2D | 249 | Open or short to +B in the motor temperature sensor circuit (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P0A2C-247 | Motor Temp No1 |
| P0A2D-249 |
RELATED DATA LIST
HINT
After confirming that DTC P0A2C-247 or P0A2D-249 is output, use the Techstream to check "Motor Temp No1" in the power management control ECU Data List.
| Displayed Temperature | Malfunction |
|---|---|
| 40°C (-40°F) | Open circuit or short to +B |
| 215°C (419°F) | Short circuit or short to GND |
Scheme 237
The resistance of the thermistor built into the generator temperature sensor changes in accordance with changes in generator (MG1) temperature. The lower the generator (MG1) temperature, the higher the thermistor resistance. Conversely, the higher the generator (MG1) temperature, the lower the resistance.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A37 | 260 | Generator temperature sensor output does not increase in which the value should increase, or output does not decrease under conditions in which the value should decrease. (1 trip detection logic) | Hybrid vehicle transaxle assembly (Generator temperature sensor) |
| P0A3A | 258 | Sudden change in generator temperature sensor output or hunting Unusual sudden change in generator temperature sensor output occurs and offset condition continues for a certain period of time, or unusual change in motor temperature sensor output occurs repeatedly. (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P0A37-260 | Motor Temp No2 |
| P0A3A-258 |
RELATED DATA LIST
Refer to the description for DTC P0A37-260. Refer to DESCRIPTION.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A38 | 257 | Short to GND or short in the generator temperature sensor circuit (1 trip detection logic) | Wire harness or connector Power management control ECU Hybrid vehicle transaxle assembly (Generator temperature sensor) |
| P0A39 | 259 | Open or short to +B in the generator temperature sensor circuit (1 trip detection logic) |
| DTC No. | Data List |
|---|---|
| P0A38-257 | Motor Temp No2 |
| P0A39-259 |
RELATED DATA LIST
HINT
After confirming that DTC P0A38-257 or P0A39-259 is output, use the Techstream to check "Motor Temp No2" in the power management control ECU Data List.
| Displayed Temperature | Malfunction |
|---|---|
| 40°C (-40°F) | Open circuit or short to +B |
| 215°C (419°F) | Short circuit or short to GND |
Scheme 238
A resolver is a sensor that is used to detect the position of the magnetic poles of the rotor in motor generator. Knowing the position of the poles is indispensable for ensuring precise control of motor (MG2) and generator (MG1).
Each resolver contains a stator that has an excitation coil and 2 detection coils (S, C). The gap between the stator and rotor changes as the rotor turns because the rotor is oval shaped. An alternating current with a predetermined frequency flows through the excitation coil, and detection coils S and C output alternating currents in accordance with the sensor rotor position.
The MG ECU located in the inverter with converter assembly detects the absolute position of the rotor according to the phases of detection coils S and C and the heights of their waveforms. Furthermore, the CPU calculates the amount of change in the position within a predetermined length of time, in order to use the resolver as a speed sensor.
The MG ECU monitors signals output from the motor resolver and detects malfunctions.
HINT
The term "drive motor A" indicates motor (MG2).
Scheme 239
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A3F | 243 | Interphase short in the motor resolver circuit. Short circuit between signal lines of motor resolver phases is electrically detected. (1 trip detection logic) | Inverter with converter assembly Hybrid vehicle transaxle assembly Wire harness or connector |
| P0A40 | 500 | Motor resolver output signal is out of the normal range (amplitude is too large or too small). (1 trip detection logic) | |
| P0A41 | 245 | Open or short in the motor resolver circuit. Motor resolver signal is out of the normal range (signal output amplitude is extremely small). (1 trip detection logic) |
The MG ECU monitors the motor resolver output signal. If the MG 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 power management control ECU will illuminate the MIL and set a DTC.
A resolver is a sensor that is used to detect the position of the magnetic poles of the rotor in motor generator. Knowing the position of the poles is indispensable for ensuring precise control of motor (MG2) and generator (MG1).
Each resolver contains a stator that has an excitation coil and 2 detection coils (S, C). The gap between the stator and rotor changes as the rotor turns because the rotor is oval shaped. An alternating current with a predetermined frequency flows through the excitation coil, and detection coils S and C output alternating currents in accordance with the sensor rotor position.
The MG ECU located in the inverter with converter assembly detects the absolute position of the rotor according to the phases of detection coils S and C and the heights of their waveforms. Furthermore, the CPU calculates the amount of change in the position within a predetermined length of time, in order to use the resolver as a speed sensor.
The MG ECU monitors signals output from the generator resolver and detects malfunctions.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A4B | 253 | Interphase short in the generator resolver circuit. Short circuit between signal lines of generator resolver phases is electrically detected. (1 trip detection logic) | Inverter with converter assembly Hybrid vehicle transaxle assembly Wire harness or connector |
| P0A4C | 513 | Generator resolver output signal is out of the normal range (amplitude is too large or too small). (1 trip detection logic) | |
| P0A4D | 255 | Open or short in the generator resolver circuit. Generator resolver signal is out of the normal range (signal output amplitude is extremely small). (1 trip detection logic) |
The MG ECU monitors the generator resolver output signal. If the MG ECU detects output signals that are out of the normal range or specification, it will conclude that there is a malfunction of the generator resolver. If a malfunction is detected, the power management control ECU will illuminate the MIL and set a DTC.
The MG ECU located in the inverter with converter assembly monitors its internal operation and it will set DTCs when it detects malfunctions.
HINT
The term "drive motor A" indicates MG2.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A51 | 174 | Motor current sensor high resolution circuit signal is out of range or there is a difference between it and the motor current sensor low resolution circuit current value. (1 trip detection logic) | Inverter with converter assembly |
The MG ECU located in the inverter with converter assembly monitors the motor inverter current sensors. P0A60 and P0A63 indicate malfunctions in current sensors, and they do not indicate malfunctions in the high-voltage system.
HINT
The term "drive motor A" indicates motor (MG2).
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A60 | 288 | Malfunction in motor inverter current sensor (phase V sub sensor)* (1 trip detection logic) | Inverter with converter assembly |
| 290 | Malfunction in motor inverter current sensor (phase V main sensor)* (1 trip detection logic) | ||
| 294 | Malfunction in motor inverter current sensor (performance problem or open of phase V sensors)* Detects an abnormal condition when the difference between the output of the phase V main sensor and phase V sub sensor is larger than the standard. (1 trip detection logic) | ||
| 501 | Malfunction in motor inverter current sensor (phase V main and sub sensors offset)* (1 trip detection logic) | ||
| P0A63 | 296 | Malfunction in motor inverter current sensor (phase W sub sensor)* (1 trip detection logic) | |
| 298 | Malfunction in motor inverter current sensor (phase W main sensor)* (1 trip detection logic) | ||
| 302 | Malfunction in motor inverter current sensor (performance problem or open of phase W sensors)* Detects an abnormal condition when the difference between the output of the phase W main sensor and phase W sub sensor is larger than the standard. (1 trip detection logic) | ||
| 502 | Malfunction in motor inverter current sensor (phase W main and sub sensors offset)* (1 trip detection logic) |
- *: Stores a DTC when the current sensor signal is out of the normal range.
The power management control ECU monitors the motor inverter current sensor. If the power management control ECU detects a current sensor fault, it will illuminate the MIL and set a DTC.
The MG ECU located in the inverter with converter assembly monitors the generator inverter current sensors. P0A72 and P0A75 indicate malfunctions in the current sensors, and they do not indicate malfunctions in the high-voltage system.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A72 | 326 | Malfunction in generator inverter current sensor (phase V sub sensor)* (1 trip detection logic) | Inverter with converter assembly |
| 328 | Malfunction in generator inverter current sensor (phase V main sensor)* (1 trip detection logic) | ||
| 333 | Malfunction in generator inverter current sensor (performance problem or open of phase V sensors)* Detects an abnormal condition when the difference between the output of the phase V main sensor and phase V sub sensor is larger than the standard. (1 trip detection logic) | ||
| 515 | Malfunction in generator inverter current sensor (phase V main and sub sensors offset)* (1 trip detection logic) | ||
| P0A75 | 334 | Malfunction in generator inverter current sensor (phase W sub sensor)* (1 trip detection logic) | |
| 336 | Malfunction in generator inverter current sensor (phase W main sensor)* (1 trip detection logic) | ||
| 341 | Malfunction in generator inverter current sensor (performance problem or open of phase W sensors)* Detects an abnormal condition when the difference between the output of the phase W main sensor and phase W sub sensor is larger than the standard. (1 trip detection logic) | ||
| 516 | Malfunction in generator inverter current sensor (phase W main and sub sensors offset)* (1 trip detection logic) |
- *: Stores a DTC when the current sensor signal is out of the normal range.
The power management control ECU monitors the generator inverter current sensor. If the power management control ECU detects a current sensor fault, it will illuminate the MIL and set a DTC.
See also:
• COMPONENTS [12/2013 - ]