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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 P0894: Transmission Component Slipping; DTC P2714: Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT) [04/2013 - 08/2015] >> Procedure

DTC P0894: Transmission Component Slipping; DTC P2714: Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT) [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 P0894 is output
      • Only P0894 and P2714 are output
      		 A
      P0894, P2714 and other DTCs are output B

      HINT: 

      If any DTCs other than P0894 and P2714 are output, perform troubleshooting for those DTCs first.

    Result: 

    B 

    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: 

    A 

    See step  2

  2. PERFORM ACTIVE TEST USING TECHSTREAM 
    NOTE:
    • Perform the test at the normal operating ATF (Automatic Transmission Fluid) temperature: 50 to 80°C (122 to 176°F)
    • Be careful to prevent SST hose from interfering with the exhaust pipe.
    • This check must be conducted after checking and adjusting engine.
    • Perform under condition that A/C is OFF.

    HINT: 

    Using the Techstream to perform Active Test allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Test early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Test.

    1. Turn the engine switch off.
    2. Lift the vehicle up.
    3. Remove the test plug on the transmission case center right side and connect SST.
      GTY456281Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • SST: 09992-00095 
        1. 09992-00231
        2. 09992-00271
    4. Lower the vehicle.
    5. Fully apply the parking brake and chock the 4 wheels.
    6. Connect the Techstream to the DLC3.
    7. Start the engine.
    8. Warm up the ATF (Automatic Transmission Fluid).
    9. Measure the line pressure when the engine is idling.
    10. Turn the Techstream on.
    11. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Solenoid (SLT).
    12. According to the display on the Techstream, perform the "Active Test".
    13. Measure the line pressure with SST.

      Powertrain > Engine > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Activate the Solenoid (SLT) Operate shift solenoid valve SLT and raise line pressure ON or OFF
      HINT: 
      • OFF: Line pressure up (when Active Test "Activate the Solenoid (SLT)" performed, ECM commands shift solenoid valve SLT to turn off)
      • ON: No action (normal operation)
      		 [Vehicle Condition]
      • IG ON
      • Engine idling

      Powertrain > Engine > Active Test 

      Tester Display
      Activate the Solenoid (SLT)

      "Activate the Solenoid (SLT)" in the Active Test is performed to check the line pressure changes by connecting the SST to the automatic transmission, which is used in the HYDRAULIC TEST as well.

      Refer to HYDRAULIC TEST [04/2013 - 08/2015]

      HINT: 

      The pressure values in Active Test and HYDRAULIC TEST are different from each other.

      OK

      The line pressure changes as specified when performing the Active Test.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  11

    Result: 

    OK 

    See step  3

  3. PERFORM ACTIVE TEST USING TECHSTREAM 

    HINT: 

    Using the Techstream to perform Active Test allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Test early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Test.

    1. Warm up the engine.
    2. Turn the engine switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the engine switch on (IG).
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Shift Position.
    7. According to the display on the Techstream, perform the "Active Test".

      HINT: 

      While driving, the shift position can be forcibly changed with the Techstream. Comparing the shift position commanded by the Active Test with the actual shift position enables you to confirm the problem.

      Refer to FAIL-SAFE CHART [04/2013 - 08/2015]

      Powertrain > Engine > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Control the Shift Position Operate shift solenoid valves and set each shift position
      • Press "→" button: Shift up
      • Press "←" button: Shift down
      		 Possible to check operation of the shift solenoid valves.
      [Vehicle Condition]
      50 km/h (30 mph) or less

      Powertrain > Engine > Active Test 

      Tester Display
      Control the Shift Position

      HINT: 

      • This test can be conducted when the vehicle speed is 50 km/h (31 mph) or less.
      • The 4th to 5th and 5th to 6th up-shifts must be performed with the accelerator pedal released.
      • The 6th to 5th and 5th to 4th down-shifts must be performed with the accelerator pedal released.
      • Do not operate the accelerator pedal for at least 2 seconds after shifting and do not shift successively.
      • The shift position commanded by the ECM is shown in the Data List (Shift Status) display on the Techstream.
    8. Compare the ECM gear shift command and the actual gear position.

      Result

      ECM Commanded Gear 1st 2nd 3rd 4th 5th 6th Proceed to
      Actual gear during malfunction Shift solenoid S1: Stuck ON*1 2nd 2nd 3rd 4th 5th 6th A
      Shift solenoid S1: Stuck OFF 1st 1st 3rd 4th 5th N*2
      Shift solenoid S2: Stuck ON 1st 2nd 2nd 4th 6th 6th B
      Shift solenoid S2: Stuck OFF 3rd 3rd 3rd 4th 5th 5th
      Shift solenoid S3: Stuck ON 1st 2nd 3rd 3rd N*2 N*2 C
      Shift solenoid S3: Stuck OFF 3rd 4th 4th 4th 5th 6th
      Shift solenoid S4: Stuck ON*3 1st 2nd 3rd 4th 5th 6th D
      Shift solenoid S4: Stuck OFF 1st 2nd 3rd 4th 4th 4th
      Actual gear position when normal 1st 2nd 3rd 4th 5th 6th E

      *1: When shift solenoid S1 is stuck ON, the vehicle cannot drive in reverse.

      *2: Neutral

      *3: When shift solenoid S4 is stuck ON, gear shifting is normal.

    Result: 

    B 

    See step  7

    Result: 

    C 

    See step  8

    Result: 

    D 

    See step  9

    Result: 

    E 

    See step  11

    Result: 

    A 

    See step  4

  4. INSPECT SHIFT SOLENOID VALVE S1 
    1. Remove the shift solenoid valve S1.
      GTY461563Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Shift Solenoid Valve S1
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Solenoid Connector (S1) - Solenoid Body (S1) 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 S1. Refer to  COMPONENTS [04/2013 - 08/2015] 

    Result: 

    OK 

    See step  5

  5. 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: 

    NG 

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

    Result: 

    OK 

    See step  6

  6. INSPECT TORQUE CONVERTER ASSEMBLY 
    1. Check the torque converter assembly.

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

      OK

      The torque converter assembly operates normally.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

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

    Result: 

    NG 

    REPLACE TORQUE CONVERTER ASSEMBLY. Refer to  COMPONENTS [04/2013 - 08/2015] 

  7. 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: 

    OK 

    See step  5

    Result: 

    NG 

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

  8. INSPECT SHIFT SOLENOID VALVE S3 
    1. Remove the shift solenoid valve S3.
      GTY461562Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Shift Solenoid Valve S3
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Solenoid Connector (S3) - Solenoid Body (S3) 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: 

    OK 

    See step  5

    Result: 

    NG 

    REPLACE SHIFT SOLENOID VALVE S3. Refer to  COMPONENTS [04/2013 - 08/2015] 

  9. INSPECT SHIFT SOLENOID VALVE S4 
    1. Remove the shift solenoid valve S4.
      GTY463911Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Shift Solenoid Valve S4
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      Solenoid Connector (S4) - Solenoid Body (S4) 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 S4. Refer to  COMPONENTS [04/2013 - 08/2015] 

    Result: 

    OK 

    See step  10

  10. INSPECT SHIFT SOLENOID VALVE SL2 
    1. Remove the shift solenoid valve SL2.
      GTY470364Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Shift Solenoid Valve SL2
    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 1 and the negative (-) lead to terminal 2 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 

    See step  5

    Result: 

    NG 

    REPLACE SHIFT SOLENOID VALVE SL2. Refer to  COMPONENTS [04/2013 - 08/2015] 

  11. INSPECT SHIFT SOLENOID VALVE SLT 
    1. Remove the shift solenoid valve SLT.
      GTY458949Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Shift Solenoid Valve SLT
    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 

    See step  5

    Result: 

    NG 

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

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