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Home >> Toyota >> 2016 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (2GR-FXE) - Diagnostic Codes (7 Of 7) >> Hybrid Control System >> DTC P321E-318: All HV Gate Blocking Range/Performance [02/2014 - 11/2016] >> Procedure

DTC P321E-318: All HV Gate Blocking Range/Performance [02/2014 - 11/2016]: Procedure

  1. CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR) 

    Refer to PROCEDURE - Step 1

    Result

    Proceed to
    OK
    NG

    Result:  2

    NG 

    CONNECT SECURELY 

    Result:  1

    OK 

    See step  2

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

    Refer to PROCEDURE - Step 3

    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

    Result:  2

    B 

    CONNECT SECURELY 

    Result:  3

    C 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  1

    A 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INVERTER WITH CONVERTER ASSEMBLY) 
    WARNING:

    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 information because this may cause a malfunction.

    2. Disconnect the A60 power management control ECU connector.
    3. Disconnect the A46 inverter with converter assembly connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A60-30 (HSDN) or A46-40 (HSDN) - Body ground and other terminals Power switch off 10 kΩ or higher
      A60-30 (HSDN) - A46-40 (HSDN) Power switch off Below 1 Ω
      GTY450221Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to Power Management Control ECU)
      *b Front view of wire harness connector
      (to Inverter with Converter Assembly)
    5. Reconnect the A46 inverter with converter assembly connector.
    6. Reconnect the A60 power management control ECU connector.

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  1

    OK 

    See step  4

  4. CHECK INVERTER WITH CONVERTER ASSEMBLY 
    WARNING:

    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 information because this may cause a malfunction.

    2. Disconnect the A46 inverter with converter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY443341Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Inverter with Converter Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      A46-40 (HSDN) - A46-10 (GND1) Power switch off 2.65 to 3.55 kΩ
    4. Reconnect the A46 inverter with converter assembly connector.

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    REPLACE POWER MANAGEMENT CONTROL ECU. Refer to  COMPONENTS [02/2014 - 11/2016] 

    Result:  2

    NG 

    REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to  COMPONENTS [02/2014 - 11/2016] 

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