MOTOR GENERATOR CONTROL SYSTEM, Diagnostic DTC:P314F1F

DTC SUMMARY

1. MALFUNCTION DESCRIPTION

   This DTC is stored if the value of "VL Voltage" fluctuates excessively. The cause of this malfunction may be one of the following:

   Area	Main Malfunction Description
   Hybrid vehicle transmission assembly	Open or short circuit in the motor or generator coils Motor (MG2) or generator (MG1) internal malfunction (iron particles or damage from foreign objects)
   Resolver	Open or short circuit in the motor resolver or generator resolver circuit
   Inverter	Inverter internal circuit malfunction Malfunction in ECU that controls the inverter Malfunction in sensor for inverter control (current sensor)
   HV battery high-voltage line circuit	Open in HV floor under wire

DESCRIPTION

For a description of the inverter.

Click here

CONFIRMATION DRIVING PATTERN

1. Connect the GTS to the DLC3.

2. Turn the power switch on (IG) and turn the GTS on.

3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

4. Turn the power switch off and wait for 2 minutes or more.

5. Turn the power switch on (IG) and turn the GTS on.

6. With power switch on (IG) and wait for 5 seconds or more.

7. Turn the power switch on (READY) and wait for 5 seconds or more.

8. Drive the vehicle on urban roads for approximately 10 minutes.

9. Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.

10. Check the DTC judgment result.

    Tech Tips

    
    

    • 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 HV Battery High-voltage Line Circuit.

Click here

Refer to the wiring diagram for the Inverter Low-voltage Circuit.

Click here

CAUTION / NOTICE / HINT

PROCEDURE

1. CHECK DTC OUTPUT

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the power switch on (IG).

   3. Enter the following menus: Powertrain / Hybrid Control and Motor Generator / Trouble Codes.

   4. Check for DTCs.

      
      Powertrain > Hybrid Control > Trouble Codes
      Powertrain > Motor Generator > Trouble Codes
      Powertrain > HV Battery > Trouble Codes

      Result
      Result Proceed to P314F1F only is output, or DTCs except the ones in the tables 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

      Table 1
      Malfunction Content System Relevant DTC Insulation Malfunction Hybrid control system P1C7C49 Hybrid/EV Battery Voltage System Isolation (A/C Area) Internal Electronic Failure P1C7D49 Hybrid/EV Battery Voltage System Isolation (Hybrid/EV Battery Area) Internal Electronic Failure P1C7E49 Hybrid/EV Battery Voltage System Isolation (Transaxle Area) Internal Electronic Failure P1C7F49 Hybrid/EV Battery Voltage System Isolation (Direct Current Area) Internal Electronic Failure System Main Relay or High Voltage Circuit Malfunction Hybrid control system P0AD911 Hybrid/EV Battery Positive Contactor Circuit Short to Ground P0AD915 Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery or Open P0ADD11 Hybrid/EV Battery Negative Contactor Circuit Short to Ground P0ADD15 Hybrid/EV Battery Negative Contactor Circuit Short to Auxiliary Battery or Open P1C8449 High Voltage Power Resource Circuit Short during Ready ON HV Battery Malfunction Hybrid battery control system 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 P1A8000 Hybrid/EV Battery Stack 1 Delta SOC High P1A8100 Hybrid/EV Battery Stack 1 Delta SOC High (Extreme) P1A8500 Hybrid/EV Battery Stack 2 Delta SOC High P1A8600 Hybrid/EV Battery Stack 2 Delta SOC High (Extreme) 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 U115087 Lost Communication with Hybrid Powertrain Control Module (Hybrid/EV Battery Local Bus) Missing Message 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 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
      Table 2 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 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 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 P0E0412 Generator Phase V Current Sensor Circuit Short to Battery P0E0414 Generator Phase V Current Sensor Circuit Short to Ground or Open P0E0428 Generator Phase V Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure P0E0812 Generator Phase W Current Sensor Circuit Short to Battery P0E0814 Generator Phase W Current Sensor Circuit Short to Ground or Open P0E0828 Generator Phase W Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure P0E3116 DC/DC Converter Voltage Sensor "A" (VL) Circuit Voltage Below Threshold P0E3117 DC/DC Converter Voltage Sensor "A" (VL) Circuit Voltage Above Threshold P1C3C62 Drive Motor "A" Phase V Current Sensor Correlation Signal Compare Failure P1C4928 Drive Motor "A" Phase V Current Sensor "B" Signal Bias Level Out of Range / Zero Adjustment Failure P1C4914 Drive Motor "A" Phase V Current Sensor "B" Circuit Short to Ground or Open P1C4912 Drive Motor "A" Phase V Current Sensor "B" Circuit Short to Battery P1C3D62 Drive Motor "A" Phase W Current Sensor Correlation Signal Compare Failure P1C4E14 Drive Motor "A" Phase W Current Sensor "B" Circuit Short to Ground or Open P1C4E12 Drive Motor "A" Phase W Current Sensor "B" Circuit Short to Battery P1C4E28 Drive Motor "A" Phase W Current Sensor "B" Signal Bias Level Out of Range / Zero Adjustment Failure P1C3E62 Generator Phase V Current Sensor Correlation Signal Compare Failure P1C5328 Generator Phase V Current Sensor "B" Signal Bias Level Out of Range / Zero Adjustment Failure P1C5314 Generator Phase V Current Sensor "B" Circuit Short to Ground or Open P1C5312 Generator Phase V Current Sensor "B" Circuit Short to Battery P1C3F62 Generator Phase W Current Sensor Correlation Signal Compare Failure P1C5828 Generator Phase W Current Sensor "B" Signal Bias Level Out of Range / Zero Adjustment Failure P1C5814 Generator Phase W Current Sensor "B" Circuit Short to Ground or Open P1C5812 Generator Phase W Current Sensor "B" Circuit Short to Battery P1CAC49 Generator Position Sensor Internal Electronic Failure P1CAD49 Drive Motor "A" Position Sensor Internal Electronic Failure P1CAF38 Generator Position Sensor REF Signal Cycle Malfunction Signal Frequency Incorrect P1CB038 Drive Motor "A" Position Sensor REF Signal Frequency Incorrect Hybrid control system P0C7600 Hybrid/EV Battery System Discharge Time Too Long P0D2D1C Drive Motor "A" Inverter Voltage Sensor Voltage Out of Range P0E311C Boosting Converter Voltage Sensor "A" Voltage Out of Range System Malfunction Motor generator control system P0A7872 Drive Motor "A" Inverter Actuator Stuck Open P0A7A72 Generator Inverter Actuator Stuck Open 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 Hybrid control system P0AA649 Hybrid/EV Battery Voltage System Isolation Internal Electronic Failure

      Tech Tips

      
      

      • P314F1F may be output as a result of the malfunction indicated by the DTCs above.

      
      

      1. The chart above is listed in inspection order of priority.

      2. 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.)

   5. Turn the power switch off.

   
   

   B

   GO TO DTC CHART (HYBRID CONTROL SYSTEM) Click here

   C

   GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM) Click here

   D

   GO TO DTC CHART (HYBRID BATTERY CONTROL SYSTEM) Click here

   A

2. CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR)

   Result
   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

   CAUTION:

   Be sure to wear insulated gloves.

   
   

   1. Check that the service plug grip is not installed.

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

   2. Check the connection condition of the low voltage connectors of the inverter with converter assembly and the contact pressure of each terminal. Check the terminals for deformation, and the connector for water and foreign matter.

      Click here

      

      *A

      for LHD

      *B

      for RHD

      Note

      Before disconnecting the connector, confirm that it is properly connected by checking that the claws of the lock levers are engaged and that the connector cannot be pulled off.

      OK
      - The connector is connected securely.
      - The terminals are not deformed and are connected securely.
      - No water or foreign matter in the connector.

      Result
      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

      Tech Tips

      When connecting the connector, connect it with the lock levers raised. Rotate each lock lever downward and make sure that the connector is securely connected. When a lock lever is fully lowered, a click will be heard as its claw engages. After the click is heard, pull up on the connector to confirm that it is securely connected.

   
   

   B

   CONNECT SECURELY

   C

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   A

3. CHECK GENERATOR RESOLVER CIRCUIT

   Click here

   Result
   Proceed to NEXT

   
   

   NEXT

4. CHECK MOTOR RESOLVER CIRCUIT

   Click here

   Result
   Proceed to NEXT

   
   

   NEXT

5. CHECK GENERATOR HIGH-VOLTAGE CIRCUIT

   Click here

   Result
   Proceed to NEXT

   
   

   NEXT

6. CHECK MOTOR HIGH-VOLTAGE CIRCUIT

   Click here

   Result
   Proceed to NEXT

   
   

   NEXT

7. CHECK HV BATTERY HIGH-VOLTAGE LINE CIRCUIT

   Click here

   Result
   Proceed to NEXT

   
   

   NEXT

8. CHECK INVERTER LOW-VOLTAGE CIRCUIT

   Click here

   Tech Tips

   If the "Inverter Low-voltage Circuit" inspection results are normal, perform the next step.

   Result
   Proceed to NEXT

   
   

   NEXT

   REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here