Lexus ES: DC/DC Converter Stuck On (P0A949E,P0D3319)
DTC SUMMARY
MALFUNCTION DESCRIPTION
This DTC indicates that a large current flowed in the boost converter. The cause of this malfunction may be one of the following:
| Area | Main Malfunction Description |
|---|---|
| Hybrid vehicle transaxle assembly |
|
| Resolver | Open or short circuit in the motor resolver or generator resolver |
| Inverter |
|
| Inverter cooling system |
|
DESCRIPTION
For a description of the boost converter.
Click here .gif)
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P0A949E | DC/DC Converter Stuck On | Boost converter fail signal detected (circuit malfunction) (1 trip detection logic) |
| Comes on | Master Warning Light: Comes on |
| P0D3319 | DC/DC Converter Circuit Current Above Threshold | Boost converter fail signal detected: A malfunction is detected in any of the boost converter components (inverter, hybrid vehicle transaxle, motor generator control ECU, etc.). (1 trip detection logic) |
| Comes on | Master Warning Light: Comes on |
| DTC No. | Data List |
|---|---|
| P0A949E P0D3319 | Emergency Shutdown Signal |
MONITOR DESCRIPTION
If excessive amperage flows through the boost converter, the boost converter will transmit a boost converter fail signal to the motor generator control ECU. Upon receiving this signal, the motor generator control ECU will illuminate the MIL and set a DTC.
MONITOR STRATEGY
| Related DTCs | P0A94 (INF P0A949E): FCV detection (Circuit malfunction) P0D33 (INF P0D3319): FCV detection (Over current malfunction) |
| Required sensors/components | Boost converter |
| 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 P0A94 (INF P0A949E) is not detected DTC P0D33 (INF P0D3319) is not detected |
CONFIRMATION DRIVING PATTERN
HINT:
-
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Click here
-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG) and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off and wait for 2 minutes or more.
- Turn the power switch on (IG) and turn the Techstream on.
- With power switch on (IG) and wait for 5 seconds or more. [*1]
- Turn the power switch on (READY) and wait for 5 seconds or more. [*2]
-
Depress the accelerator pedal of the vehicle with the engine stopped and the shift lever in P to start the engine. [*3]
NOTICE:
As the state of charge of the HV battery may be low after driving in fail-safe mode, it will automatically be charged for 5 to 10 minutes with power switch on (READY) after repairs have been performed.
HINT:
- Check that there are no abnormalities (abnormal sounds, coolant leaks, etc.).
-
[*1] to [*3]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.
-
Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.
WIRING DIAGRAM
Refer to the wiring diagram for the Generator Resolver Circuit.
Click here
Refer to the wiring diagram for the Motor Resolver Circuit.
Click here
Refer to the wiring diagram for the Generator High-voltage Circuit.
Click here
Refer to the wiring diagram for the Motor High-voltage Circuit.
Click here
Refer to the wiring diagram for the Inverter Low-voltage Circuit.
Click here
Refer to the wiring diagram for the Cooling System.
Click here
CAUTION / NOTICE / HINT
CAUTION:
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-
Before the following operations are conducted, take precautions to prevent electric shock by turning the power switch off, wearing insulated gloves, and removing the service plug grip from HV battery.
- Inspecting the high-voltage system
- Disconnecting the low voltage connector of the inverter with converter assembly
- Disconnecting the low voltage connector of the HV battery
-
To prevent electric shock, make sure to remove the service plug grip to cut off the high voltage circuit before servicing the vehicle.
-
After removing the service plug grip from the HV battery, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
-
After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.
Click here
HINT:
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
*a
Without waiting for 10 minutes
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
- After troubleshooting and repairing all output DTCs, be sure to replace the inverter with converter assembly. (The inverter with converter assembly may have been broken or damaged due to overheating.)
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, Motor Generator and HV Battery / Trouble Codes.
(d) Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes Powertrain > Motor Generator > Trouble Codes Powertrain > HV Battery > Trouble Codes| Result | Proceed to |
|---|---|
| P0A949E or P0D3319 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 |
| DTCs of hybrid battery control system in the tables below are output. | D |
| 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 Battery or Open | ||
| P0ADD11 | Hybrid/EV Battery Negative Contactor Circuit Short to Ground | ||
| P0ADD15 | Hybrid/EV Battery Negative Contactor Circuit Short to Battery or Open | ||
| P1C8449 | High Voltage Power Resource Circuit Short during Ready ON | ||
| HV Battery Malfunction | Hybrid battery control system | P056014 | System Voltage (BATT) Circuit Short to Ground or Open |
| P060629 | Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Signal Invalid | ||
| P060687 | Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message | ||
| P060A47 | Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure | ||
| P060A87 | Hybrid/EV Battery Energy Control Module Processor from Monitoring Processor Missing Message | ||
| P060B16 | Hybrid/EV Battery Energy Control Module A/D Processing Circuit Voltage Below Threshold | ||
| P060B49 | Hybrid/EV Battery Energy Control Module A/D Processing Internal Electronic Failure | ||
| P0ABF11 | Hybrid/EV Battery Current Sensor "A" Circuit Short to Ground | ||
| P0ABF15 | Hybrid/EV Battery Current Sensor "A" Circuit Short to Auxiliary Battery or Open | ||
| P0ABF28 | Hybrid/EV Battery Current Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure | ||
| P0ABF2A | Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range | ||
| P0B0E11 | Hybrid/EV Battery Current Sensor "B" Circuit Short to Ground | ||
| P0B0E15 | Hybrid/EV Battery Current Sensor "B" Circuit Short to Auxiliary Battery or Open | ||
| P0B1362 | Hybrid/EV Battery Current Sensor "A"/"B" Signal Compare Failure | ||
| P0E2D00 | Hybrid/EV Battery Energy Control Module Hybrid/EV Battery Monitor Performance | ||
| P1A001C | Hybrid Battery Stack 2 Cell Voltage Detection Voltage Out of Range | ||
| P1A6017 | Hybrid/EV Battery Stack 2 Cell Circuit Voltage Above Threshold | ||
| P1A6116 | Hybrid/EV Battery Stack 2 Cell Circuit Voltage Below Threshold | ||
| P1A8100 | Hybrid/EV Battery Stack 1 Delta SOC High (Extreme) | ||
| P1A8600 | Hybrid/EV Battery Stack 2 Delta SOC High (Extreme) | ||
| P1AC413 | Hybrid/EV Battery Stack 1 Current Interrupt Device Circuit Open | ||
| P1AC49E | Hybrid/EV Battery Stack 1 Current Interrupt Device Stuck On | ||
| P1AC513 | Hybrid/EV Battery Stack 2 Current Interrupt Device Circuit Open | ||
| P1AC59E | Hybrid/EV Battery Stack 2 Current Interrupt Device Stuck On | ||
| P1AFD00 | Flying Capacitor Circuit Voltage Out of Range | ||
| P1AFD1C | Flying Capacitor/Internal Control Module Hybrid/EV Battery Monitor Voltage Out of Range | ||
| P1CBB12 | Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Auxiliary Battery | ||
| P1CBB14 | Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Ground or Open | ||
| P1CC81E | Hybrid/EV Battery Stack 1 Voltage Difference Out of Range | ||
| P1CC91E | Hybrid/EV Battery Stack 2 Voltage Difference Out of Range | ||
| P301A1C | Hybrid Battery Stack 1 Cell Voltage Detection Voltage Out of Range | ||
| P31AA17 | Hybrid/EV Battery Stack 1 Cell Circuit Voltage Above Threshold | ||
| P31AB16 | Hybrid/EV Battery Stack 1 Cell Circuit Voltage Below Threshold | ||
| P31B300 | Hybrid/EV Battery Voltage High | ||
| P33DA1E | Hybrid/EV Battery Stack 1 Circuit Resistance Out of Range | ||
| P33DB1E | Hybrid/EV Battery Stack 2 Circuit Resistance Out of Range | ||
| P33E01B | Hybrid/EV Battery Stack 1 Circuit Resistance Above Threshold | ||
| P33E11B | Hybrid/EV Battery Stack 2 Circuit Resistance Above Threshold | ||
| P33EC16 | (Extreme) Hybrid/EV Battery Stack 1 Cell Circuit Voltage Below Threshold | ||
| P33ED16 | (Extreme) Hybrid/EV Battery Stack 2 Cell Circuit Voltage Below Threshold | ||
| U029387 | Lost Communication with Hybrid/EV Powertrain Control Module Missing Message | ||
| U115087 | Lost Communication with Hybrid Powertrain Control Module (Hybrid/EV Battery Local Bus) Missing Message | ||
| HV Battery Malfunction | Hybrid control system | P0A1F94 | Hybrid/EV Battery Energy Control Module Unexpected Operation |
| P0ABF00 | Hybrid/EV Battery Current Sensor "A" Circuit Range/Performance | ||
| P0B231C | Hybrid/EV Battery "A" Voltage Sensor Circuit Voltage Out of Range | ||
| U011187 | Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing Message | ||
| U117587 | Lost Communication with Hybrid/EV Battery Energy Control Module "A" (Powertrain Bus) Missing Message | ||
| 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 | ||
| Communication malfunction | Motor generator control system | P312487 | Lost Communication between Drive Motor "A" and HV ECU Missing Message |
| Hybrid control system | P312387 | Lost Communication with Drive Motor Control Module "A" from Hybrid/EV Control Module Missing Message | |
| 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 | ||
| P0E5128 | DC/DC Converter Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure | ||
| 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 | ||
| P1CFF62 | Hybrid/EV Battery Current/DC/DC Converter Current Signal Compare Failure | ||
| Hybrid control system | P0C7600 | Hybrid/EV Battery System Discharge Time Too Long | |
| P0D2D1C | Drive Motor "A" Inverter after Boosting Voltage Sensor Circuit Voltage Out of Range | ||
| P0E311C | Drive Motor "A" Inverter before Boosting Voltage Sensor Circuit Voltage Out of Range | ||
| System malfunction | Motor generator control system | P0A9000 | Drive Motor "A" Performance |
| P0A9200 | Hybrid Generator Performance | ||
| P0BFF1D | Drive Motor "A" Circuit Current Out of Range | ||
| P0C1900 | Drive Motor "A" Execution Torque Performance | ||
| P0CA300 | DC/DC Converter Step Up Voltage Performance | ||
| P0E7100 | Generator Execution Torque Performance | ||
| P1CA51D | Hybrid Generator Circuit Current Out of Range | ||
| P314F1F | DC/DC Converter Voltage Sensor "A" (VL) Circuit Intermittent | ||
| P31531D | DC/DC Converter Current Sensor Circuit Current Out of Range | ||
| Hybrid control system | P0A9300 | Inverter "A" Cooling System Performance | |
| P0AA649 | Hybrid/EV Battery Voltage System Isolation Internal Electronic Failure | ||
| P0C7396 | Motor Electronics Coolant Pump "A" Component Internal Failure | ||
| P314A31 | Motor Electronics Coolant Pump "A" No Signal | ||
| Relevant DTC | |
|---|---|
| P0A3F1F | Drive Motor "A" Position Sensor Circuit Intermittent |
| P0A4B1F | Generator Position Sensor Circuit Intermittent |
| P0A601F | Drive Motor "A" Phase V Current (High Resolution) Circuit Intermittent |
| P0A631F | Drive Motor "A" Phase W Current (High Resolution) Circuit Intermittent |
| P0BE51F | Drive Motor "A" Phase U Current Sensor Circuit Intermittent |
| P0BE91F | Drive Motor "A" Phase V Current Sensor Circuit Intermittent |
| P0BED1F | Drive Motor "A" Phase W Current Sensor Circuit Intermittent |
| P0C501F | Drive Motor "A" Position Sensor Circuit "A" Circuit Intermittent |
| P0C5A1F | Drive Motor "A" Position Sensor Circuit "B" Circuit Intermittent |
| P0C641F | Generator Position Sensor Circuit "A" Circuit Intermittent |
| P0C691F | Generator Position Sensor Circuit "B" Circuit Intermittent |
| P0D2D1F | Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Intermittent |
| P0E001F | Generator Phase U Current Sensor Circuit Intermittent |
| P0E041F | Generator Phase V Current Sensor Circuit Intermittent |
| P0E081F | Generator Phase W Current Sensor Circuit Intermittent |
| P0E311F | DC/DC Converter Voltage Sensor "A" (VL) Circuit Intermittent |
| P0E511F | DC/DC Converter Current Sensor Circuit Intermittent |
| P1C601F | Generator Control Module Position Sensor REF Power Source Circuit Intermittent |
| P1C621F | Generator Control Module Offset Power Circuit Intermittent |
| P1C641F | Generator Control Module Circuit Intermittent |
| P1C651F | Generator Control Module Circuit Intermittent |
| P1C671F | Drive Motor "A" Phase U-V-W Current Sensor Circuit Intermittent |
| P1C691F | Generator Phase U-V-W Current Sensor Circuit Intermittent |
| P31241F | Lost Communication between Drive Motor "A" and HV ECU Circuit Intermittent |
HINT:
-
P0A949E or P0D3319 may be output as a result of the malfunction indicated by the DTCs above.
- The chart above is listed in inspection order of priority.
- Check DTCs that are output at the same time by following the listed order. (The main cause of the malfunction can be determined without performing unnecessary inspections.)
- If DTC P0A949E is output, replace the inverter with converter assembly after completing repairs.
(e) Turn the power switch off.
| B | .gif) | GO TO DTC CHART (HYBRID CONTROL SYSTEM) |
| C | | GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM) |
| D | | GO TO DTC CHART (HYBRID BATTERY SYSTEM) |
|
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| 2. | CHECK FREEZE FRAME DATA AND DIAGNOSIS RELATED INFORMATION |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Motor Generator / Utility / Diagnosis Related Information.
Powertrain > Motor Generator > Utility| Tester Display |
|---|
| Diagnosis Related Information |
(d) Enter the following menus: Powertrain / Motor Generator / Trouble Codes.
Powertrain > Motor Generator > Trouble Codes(e) Read the diagnosis related information and freeze frame data of DTC P0A949E or P0D3319.
| Result | Proceed to |
|---|---|
| DTC P312487 is listed in Diagnosis Related Information. | A |
| DTC P312487 is not listed in Diagnosis Related Information and the value of freeze frame data item Emergency Shutdown Signal is ON. | B |
| Other than above | C |
(f) Turn the power switch off.
| A | | GO TO DTC CHART (P312487) |
| B | | GO TO DTC CHART (P321E9F) |
|
| 3. | CHECK FREEZE FRAME DATA |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Motor Generator / Trouble Codes.
Powertrain > Motor Generator > Trouble Codes(d) Read the freeze frame data of DTC P0A949E or P0D3319.
| Result | Proceed to |
|---|---|
| Boosting Converter Temperature (Upper) and Boosting Converter Temperature 1 (Lower) is 120 °C (248 °F) or more | A |
| Other than above | B |
(e) Turn the power switch off.
| B | | GO TO STEP 5 |
|
| 4. | CHECK COOLING SYSTEM |
Click here
| NEXT | | GO TO STEP 5 |
| 5. | 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 |
|
| 6. | CHECK GENERATOR RESOLVER CIRCUIT |
Click here
|
| 7. | CHECK MOTOR RESOLVER CIRCUIT |
Click here
|
| 8. | CHECK GENERATOR HIGH-VOLTAGE CIRCUIT |
Click here
|
| 9. | CHECK MOTOR HIGH-VOLTAGE CIRCUIT |
Click here
|
| 10. | CHECK INVERTER LOW-VOLTAGE CIRCUIT |
Click here
HINT:
If the "Inverter Low-voltage Circuit" inspection results are normal, perform the next step.
|
| 11. | CHECK FREEZE FRAME DATA |
(a) Read the freeze frame data for DTC P0A949E or DTC P0D3319.
NOTICE:
As freeze frame data is stored immediately before and after a DTC is stored, make sure to only read the values for the moment the DTC was stored ("0(s)").
| Result | Proceed to |
|---|---|
| "Inverter Input Current" is less than 50 A. | A |
| "Inverter Input Current" is 50 A or more. | B |
(b) Turn the power switch off.
| A | | REPLACE INVERTER WITH CONVERTER ASSEMBLY |
| B | | REPLACE INVERTER WITH CONVERTER ASSEMBLY, HV BATTERY JUNCTION BLOCK ASSEMBLY AND HYBRID BATTERY TERMINAL BLOCK |
READ NEXT:
Drive Motor Inverter Temperature Sensor "A" Circuit Short to Ground (P0AED11,P0AED15)
DESCRIPTION The motor generator control ECU (MG ECU), which is built into in the inverter with converter assembly, detects the temperature of the motor inverter using the motor inverter temperature se
Drive Motor Inverter Temperature Sensor "A" Circuit Voltage Out of Range (P0AED1C)
DTC SUMMARY MALFUNCTION DESCRIPTION These DTCs indicate that the motor inverter temperature sensor value is abnormal. The cause of this malfunction may be one of the following: Internal inverter malf
Drive Motor "A" Phase U Current Sensor Circuit Short to Battery (P0BE512,...,P0BED1F)
DTC SUMMARY MALFUNCTION DESCRIPTION These DTCs indicate that the current sensor value is abnormal. The cause of this malfunction may be one of the following: Internal inverter malfunction
Inverter
SEE MORE:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the audio and visual system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS
When troubleshooting, check that the problem symptoms
Components
COMPONENTS
ILLUSTRATION
*1
FRONT DISC BRAKE ANTI-SQUEAL SHIM KIT
*2
FRONT DISC BRAKE PAD
*3
FRONT DISC BRAKE CYLINDER ASSEMBLY
*4
FRONT DISC BRAKE PAD WEAR INDICATOR PLATE
*5
