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Home >> Lexus >> 2017 >> IS 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 82 (Automatic Transmission System (A960E) - Diagnostic Codes (2 Of 2) & Circuit Tests) >> Automatic Transmission System >> DTC P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU) [04/2013 - 06/2014] >> Procedure

DTC P2759: Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU) [04/2013 - 06/2014]: Procedure

WARNING: This page is about a different car, the 2015 Lexus IS 250 and 2014 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SLU) 
    1. Disconnect the transmission wire connector from the transmission.
      GTY468221Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Transmission Wire)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      12 (SLU+) - 4 (SLU-) 20°C (68°F) 5.0 to 5.6 Ω
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for short)

      Tester Connection Condition Specified Condition
      12 (SLU+) - Body ground Always 10 kΩ or higher
      4 (SLU-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  3

    Result: 

    OK 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) 
    1. Connect the transmission wire connector to the transmission.
    2. Disconnect the F3 ECM connector.
      GTY465779Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Rear view of wire harness connector
      (to ECM)
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      F3-3 (SLU+) - F3-2 (SLU-) 20°C (68°F) 5.0 to 5.6 Ω
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for short)

      Tester Connection Condition Specified Condition
      F3-3 (SLU+) - Body ground Always 10 kΩ or higher
      F3-2 (SLU-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  COMPONENTS [04/2013 - 08/2015] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  3. INSPECT SHIFT SOLENOID VALVE SLU 
    1. Remove the shift solenoid valve SLU.
      GTY469146Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Shift Solenoid Valve SLU
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 - 2 20°C (68°F) 5.0 to 5.6 Ω
    3. Connect the positive (+) lead with a 21 W bulb to terminal 2 and the negative (-) lead to terminal 1 of the solenoid valve connector, then check the movement of the valve.

      OK

      The solenoid makes an operating sound.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPAIR OR REPLACE TRANSMISSION WIRE. Refer to  COMPONENTS [04/2013 - 08/2015] 

    Result: 

    NG 

    REPLACE SHIFT SOLENOID VALVE SLU. Refer to  COMPONENTS [04/2013 - 08/2015] 

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