MOTOR GENERATOR CONTROL SYSTEM, Diagnostic DTC:P0A6012, P0A6014, P0A601C, P0A601F, P0A6312, P0A6314, P0A631C, P0A631F

Info Added 2017-10-06

DTC Code DTC Name
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
P0A601F Drive Motor "A" Phase V Current(High Resolution) Circuit Intermittent
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
P0A631F Drive Motor "A" Phase W Current(High Resolution) Circuit Intermittent

DESCRIPTION

The motor generator control ECU (MG ECU), which is built into the inverter with converter assembly, monitors its internal operation and will store DTCs if it detects a malfunction.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0A6012 Drive Motor "A" Phase V Current(High Resolution) Circuit Short to Battery

Motor phase V current sensor high resolution signal circuit (short to +B)

(MIV)

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

 Does not come on

Master Warning Light:

Comes on
P0A6014 Drive Motor "A" Phase V Current(High Resolution) Circuit Short to Ground or Open

Motor phase V current sensor high resolution signal circuit (short to ground or open)

(MIV)

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

 Does not come on

Master Warning Light:

Comes on
P0A601C Drive Motor "A" Phase V Current(High Resolution) Circuit Voltage Out of Range

Motor phase V current sensor high resolution signal circuit (out of range)

(MIV)

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

 Does not come on

Master Warning Light:

Comes on
P0A601F Drive Motor "A" Phase V Current(High Resolution) Circuit Intermittent

Out of range detected in motor current sensor when DTC P0C7917, P0D3319, P1C5D19 or P1C5F19 is stored.

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

 Does not come on

Master Warning Light:

Does not come on
P0A6312 Drive Motor "A" Phase W Current(High Resolution) Circuit Short to Battery

Motor phase W current sensor high resolution signal circuit (short to +B)

(MIW)

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

 Does not come on

Master Warning Light:

Comes on
P0A6314 Drive Motor "A" Phase W Current(High Resolution) Circuit Short to Ground or Open

Motor phase W current sensor high resolution signal circuit (short to ground or open)

(MIW)

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

 Does not come on

Master Warning Light:

Comes on
P0A631C Drive Motor "A" Phase W Current(High Resolution) Circuit Voltage Out of Range

Motor phase W current sensor high resolution signal circuit (out of range)

(MIW)

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

 Does not come on

Master Warning Light:

Comes on
P0A631F Drive Motor "A" Phase W Current(High Resolution) Circuit Intermittent

Out of range detected in motor current sensor when DTC P0C7917, P0D3319, P1C5D19 or P1C5F19 is stored.

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

 Does not come on

Master Warning Light:

Does not come on

CONFIRMATION DRIVING PATTERN

Tech Tips

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


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

  8. 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 driving pattern again.

CAUTION / NOTICE / HINT

CAUTION:


  • B0048QQ

    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

  • A005NJP

    To prevent electric shock, make sure to remove the service plug grip to cut off the high voltage circuit before servicing the vehicle.

  • A005NAH

    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.

  • B0048M5C01
    *a Without waiting for 10 minutes

    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

    Tech Tips

    Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

Note

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.

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PROCEDURE


  1. CHECK DTC OUTPUT (MOTOR GENERATOR CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

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

    4. Check for DTCs.


      Powertrain > Motor Generator > Trouble Codes
      Result
      Result Proceed to
      P0A6012, P0A6014, P0A601C, P0A601F, P0A6312, P0A6314, P0A631C or P0A631F only is output, or DTCs except the ones in the table below are also output. A
      Any of the following DTCs including pending DTCs are also output. B
      Malfunction Content Relevant DTC
      Power source circuit malfunction 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
      System malfunction P0A7873 Drive Motor "A" Inverter Actuator Stuck Closed

      Tech Tips


      • P0A6012, P0A6014, P0A601C, P0A601F, P0A6312, P0A6314, P0A631C or P0A631F may be output as a result of the malfunctions 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 (MOTOR GENERATOR 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. A005MZX

      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

      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.


    A

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR