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Home >> Lexus >> 2017 >> IS 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 184 (Automatic Transmission System (A960E) - Diagnostic Codes (1 Of 2)) >> Automatic Transmission System >> DTC P0756: Shift Solenoid "B" Performance (Shift Solenoid Valve S2) [04/2013 - 08/2015] >> Procedure

DTC P0756: Shift Solenoid "B" Performance (Shift Solenoid Valve S2) [04/2013 - 08/2015]: 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. CHECK OTHER DTCS OUTPUT 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

      Powertrain > Engine > Trouble Codes 

    4. Read the DTCs using the Techstream.

      Result

      Result Proceed to
      Only DTC P0756 is output A
      P0756 and other DTCs are output B

      HINT: 

      If any DTCs other than P0756 are output, perform troubleshooting for those DTCs first.

    Result: 

    GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [04/2013 - 06/2014]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [06/2014 - 08/2015] 

    Result: 

    See step  2

  2. INSPECT SHIFT SOLENOID VALVE S2 
    1. Remove the shift solenoid valve S2.
      GTY468309Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Shift Solenoid Valve S2
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Solenoid Connector (S2) - Solenoid Body (S2) 20°C (68°F) 11 to 15 Ω
    3. Connect the positive (+) lead to the terminal of the solenoid connector, and the negative (-) lead to the solenoid body.

      OK

      The solenoid makes an operating sound.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE SHIFT SOLENOID VALVE S2. Refer to  COMPONENTS [04/2013 - 08/2015] 

    Result: 

    OK 

    See step  3

  3. INSPECT TRANSMISSION VALVE BODY ASSEMBLY 
    1. Check the transmission valve body assembly.

      Refer to REMOVAL [04/2013 - 08/2015]

      OK

      There is no foreign matter on each valve and they operate smoothly.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

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

    Result: 

    NG 

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