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Home >> Lexus >> 2017 >> IS 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 144 (Automatic Transmission System (Aa81E, For 2GR-FKS) - Diagnostic Codes (2 Of 4)) >> AUTOMATIC TRANSMISSION SYSTEM (for 2GR-FKS) >> DTC P0745-7F: Pressure Control Solenoid "A" Actuator Stuck Off [10/2017 - 09/2019] >> Procedure

DTC P0745-7F: Pressure Control Solenoid "A" Actuator Stuck Off [10/2017 - 09/2019]: Procedure

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  1. CHECK DTC OUTPUT 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Transmission / Trouble Codes.

      Powertrain > Transmission > Trouble Codes 

    5. Read the DTCs using the Techstream.

      Result

      Result Proceed to
      Only DTCs P0745-7F and P2713-7F are output A
      Only DTCs P0745-7F and P0870-15 are output B
      P0745-7F, P0870-15, P2713-7F and other DTCs are output C

      HINT: 

      If DTCs other than P0745-7F, P0870-15 and P2713-7F are output, perform troubleshooting for those DTCs first.

    Result: 

    GO TO DTC P0870-15 FLOWCHART. Refer to  DTC P0870-15: Transmission Fluid Pressure Sensor/Switch Circuit Short to Battery or Open [10/2017 - 09/2019] 

    Result: 

    GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2017 - 09/2018]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2018 - 09/2019] 

    Result: 

    See step  2

  2. CLEAR DTC AND PERFORM RUNNING TEST 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2017 - ]

      Powertrain > Transmission > Clear DTCs 

      HINT: 

      Write down the currently output DTCs before clearing them.

    2. Start the engine, drive at a low vehicle speed and perform the inspection.

      Result

      Result Proceed to
      Vehicle cannot be driven
      (vehicle changes to neutral)
      A
      Vehicle can be driven
      (vehicle creep occurs)
      B

    Result: 

    See step  4

    Result: 

    See step  3

  3. INSPECT SHIFT SOLENOID VALVE SL1 
    1. Remove the shift solenoid valve SL1.
      GTY635585Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Shift Solenoid Valve SL1

      Refer to DISASSEMBLY [04/2013 - ]

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Terminal 1 of the shift solenoid valve SL1 - terminal 2 20°C (68°F) 5.0 to 5.6 Ω
    3. Connect a positive (+) lead from the battery with a 21 W bulb to terminal 1 and a negative (-) lead to terminal 2 of the shift solenoid valve connector. Check that the valve moves and makes an operating sound.

      OK

      Valve moves and makes an operating sound.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    See step  5

    Result: 

    NG 

    REPLACE SHIFT SOLENOID VALVE SL1. Refer to  COMPONENTS [10/2016 - ] 

  4. INSPECT SHIFT SOLENOID VALVE SLT 
    1. Remove the shift solenoid valve SLT.
      GTY677581Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Shift Solenoid Valve SLT

      Refer to DISASSEMBLY [04/2013 - ]

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Terminal 1 of the shift solenoid valve SLT - terminal 2 20°C (68°F) 5.0 to 5.6 Ω
    3. Connect a positive (+) lead from the battery with a 21 W bulb to terminal 1 and a negative (-) lead to terminal 2 of the shift solenoid valve connector. Check that the valve moves and makes an operating sound.

      OK

      Valve moves and makes an operating sound.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE SHIFT SOLENOID VALVE SLT. Refer to  COMPONENTS [10/2016 - ] 

    Result: 

    OK 

    See step  5

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

      Refer to REMOVAL [10/2016 - ]

      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 [10/2016 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY. Refer to  COMPONENTS [10/2016 - ]