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Home >> Lexus >> 2009 >> GS 450h >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (Diagnostic Codes (P0AE6-225 - U0424-537)) >> 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

  1. CHECK HARNESS AND CONNECTOR (HV CONTROL ECU - INVERTER WITH CONVERTER ASSEMBLY) 
    WARNING:

    Be sure to wear insulated gloves.

    1. Turn the power switch off and remove the service plug grip. Refer to PRECAUTION .
      Fig 1: Identifying A54 And A60 Connectors Terminals
      GTY146600Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

    2. Disconnect connector A54 from the hybrid vehicle control ECU.
    3. Disconnect connector A60 from the inverter with converter assembly.
    4. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Specified Condition
      HSDN (A54-73) - HSDN (A60-6) 10 kΩ or more

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  2. CHECK INVERTER WITH CONVERTER ASSEMBLY 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 2: Identifying A60 Connector Terminals
      GTY137759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance

      Tester Connection Specified Condition
      HSDN (A60-6) - Body ground 2.65 to 3.55 kΩ

    NG → REPLACE INVERTER WITH CONVERTER ASSEMBLY 

    OK → See step   3 

  3. REPLACE HYBRID VEHICLE CONTROL ECU. Refer to  COMPONENTS