HYBRID CONTROL SYSTEM, Diagnostic DTC:P0A60-288, P0A60-290, P0A60-294, P0A60-501, P0A63-296, P0A63-298, P0A63-302, P0A63-502

DTC Code DTC Name
P0A60-288 Drive Motor "A" Phase V Current
P0A60-290 Drive Motor "A" Phase V Current
P0A60-294 Drive Motor "A" Phase V Current
P0A60-501 Drive Motor "A" Phase V Current
P0A63-296 Drive Motor "A" Phase W Current
P0A63-298 Drive Motor "A" Phase W Current
P0A63-302 Drive Motor "A" Phase W Current
P0A63-502 Drive Motor "A" Phase W Current

DTC SUMMARY


  1. MALFUNCTION DESCRIPTION

    These DTCs indicate the current sensor value is abnormal. The cause of this malfunction may be one of the following:


      Internal inverter malfunction

    • Inverter with converter assembly internal circuit malfunction


      Inverter low-voltage circuit malfunction

    • The connectors are not connected properly

DESCRIPTION

The MG ECU, which is built into the inverter with converter assembly, monitors the main and sub sensors of the drive motor inverter current sensor. P0A60 and P0A63 indicate malfunctions in current sensors, and do not indicate malfunctions in the high-voltage system.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
P0A60-288 Drive Motor "A" Phase V Current

Malfunction in drive motor inverter current sensor (phase V sub sensor)*

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

Master Warning Light:

Comes on
P0A60-290 Drive Motor "A" Phase V Current

Malfunction in drive motor inverter current sensor (phase V main sensor)*

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

Master Warning Light:

Comes on
P0A60-294 Drive Motor "A" Phase V Current

Malfunction in drive motor inverter current sensor (performance problem or open phase V):*

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)

  • Inverter with converter assembly

  • Wire harness or connector

Master Warning Light:

Comes on
P0A60-501 Drive Motor "A" Phase V Current

Malfunction in drive motor inverter current sensor (phase V main and sub sensors offset)*

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

Master Warning Light:

Comes on
P0A63-296 Drive Motor "A" Phase W Current

Malfunction in drive motor inverter current sensor (phase W sub sensor)*

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

Master Warning Light:

Comes on
P0A63-298 Drive Motor "A" Phase W Current

Malfunction in drive motor inverter current sensor (phase W main sensor)*

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

Master Warning Light:

Comes on
P0A63-302 Drive Motor "A" Phase W Current

Malfunction in drive motor inverter current sensor (performance problem or open phase W):*

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)

  • Inverter with converter assembly

  • Wire harness or connector

Master Warning Light:

Comes on
P0A63-502 Drive Motor "A" Phase W Current

Malfunction in drive motor inverter current sensor (phase W main and sub sensors offset)*

(1 trip detection logic)

  • Inverter with converter assembly

  • Wire harness or connector

Master Warning Light:

Comes on

*: DTC is stored when the current sensor signal is out of the normal range.

CAUTION / NOTICE / HINT

CAUTION:


  • B006JFB
    B006JM4

    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 grips from both FC stack assembly and EV battery.


    • Inspecting the high-voltage system

    • Disconnecting the low voltage connector of the inverter with converter assembly

    • Disconnecting the low voltage connector of the EV battery

    • Disconnecting the low voltage connector of the FC stack assembly

    • Disconnecting the low voltage connector of the FC converter assembly

      Tech Tips

      No removal order is specified for the service plug grips of the FC stack assembly and EV battery.

  • B006JBZ

    After removing the service plug grip from the EV 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 grip from the FC stack assembly, store it in a safe location and use the "HIGH-VOLTAGE, DO NOT TOUCH" sign to notify other technicians that you are working on the high-voltage system.

  • B000ZMTC04
    *a Without waiting for 10 minutes

    After removal of the service plug grips of both FC stack assembly and EV battery, wait for at least 10 minutes before touching the high-voltage connectors and 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

    At least 10 minutes are necessary to discharge the high-voltage capacitors inside the inverter with converter assembly and FC stack 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.

    Click here

  • When reinstalling the service plug grip to the FC stack assembly or the EV battery, slide the lever of the service plug until the letters "UNLOCK" are completely hidden, and insert it firmly.

    Click here

  • When the vehicle is parked with the power switch off, if the FC control ECU judges that the FC stack temperature will go below 0°C (32°F), it activates the FC air compressor, hydrogen pump and FC cooling water pump for a maximum of 180 seconds and drains water from the FC stack assembly. When performing inspection or repairs with the power switch off (not on (IG) or on (READY)), disconnect the cable from the negative (-) auxiliary battery terminal before performing work (If the auxiliary battery voltage is needed to conduct inspection, warm up the FC system beforehand).

Tech Tips

After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Turn the power switch on (IG) and wait for 5 seconds or more.

  2. Turn the power switch on (READY) with the shift lever in P and wait for 5 seconds or more.

  3. Move the shift lever to N and wait for 5 seconds or more.

  4. Connect the GTS to the DLC3.

  5. Enter the following menus: Powertrain / FC / Data List / FC Mode, FC Intermittent Operation.

  6. Move the shift lever to P, turn the power switch on (READY) and wait until the FC system is started. Waiting for at least 2 minutes is required after turning the power switch on (READY).


    • FC system is started: "FC Working" is displayed for the Data List (FC) item "FC Mode" and "FC Intermittent Operation" is OFF.

  7. Drive the vehicle forward with the shift lever in D for 5 m (16 ft.) or more.

  8. Drive the vehicle backward with the shift lever in R for 5 m (16 ft.) or more.

PROCEDURE


  1. CHECK DTC OUTPUT (EV)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / EV / Trouble Codes.

    4. Check for DTCs.


      Powertrain > EV > Trouble Codes
      Result
      Result Proceed to
      P0A60 or P0A63 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 P0A1B-163, 164, 511, 512 Drive Motor "A" Control Module

      Tech Tips

      P0A60 or P0A63 may be output as a result of the malfunction indicated by the DTCs above.

    5. Turn the power switch off.


    B

    GO TO DTC CHART 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 to FC stack assembly and EV battery.

      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. A01MFWK

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

      Click here

      Note

      Before disconnecting the connector, confirm that it is properly connected by checking that the locking claws are engaged and that the connector does not pull out.

      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

    A

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR