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Home >> Toyota >> 2012 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 115 (Hybrid Vehicle Control System (Diagnostic Codes (P0ADB-227 - U0424-537) & Circuit Tests)) (Hybrid)) >> Hybrid Control System >> DTC P3232-749: Short to GND in Blocking of HV Gate Connection >> Procedure

DTC P3232-749: Short to GND in Blocking of HV Gate Connection: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - INVERTER WITH CONVERTER) 
    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 ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

    2. Disconnect connector A64 from the inverter with converter assembly.
    3. Disconnect connector A66 from the hybrid vehicle control ECU.
    4. Measure the resistance according to the value(s) in the table below.
      Fig 1: Checking Harness And Connector (Hybrid Vehicle Control ECU - Inverter With Converter)
      GTY305712Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      A66-31 (HSDN) or A64-40 (HSDN) - Body ground and other terminals Ignition switch off 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Hybrid Vehicle Control ECU)
      *b Front view of wire harness connector
      (to Inverter with Converter Assembly)
    5. Connect the hybrid vehicle control ECU connector.
    6. Connect the inverter with converter assembly connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  2. 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 ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.

    2. Disconnect connector A64 from the inverter with converter assembly.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 2: Checking Inverter With Converter Assembly
      GTY299806Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      A64-40 (HSDN) - Body ground Ignition switch off 2.65 to 3.55 kΩ
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Inverter with Converter Assembly)
    4. Connect the inverter with converter assembly connector.

    NG → See step   4 

    OK → See step   3 

  3. REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  REMOVAL 
  4. REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to  REMOVAL