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Home >> Toyota >> 2019 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Automatic Transmission (U660F) - Diagnostic Codes & Circuit Tests) >> Automatic Transaxle System >> DTC P2714: Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT) [12/2013 - 11/2016] >> Procedure

DTC P2714: Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT) [12/2013 - 11/2016]: Procedure

WARNING: This page is about a different car, the 2016 Toyota Highlander, 2015 Toyota Highlander, and 2014 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P2714) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / ECT / Trouble Codes.

      Powertrain > ECT > Trouble Codes 

    5. Read the DTCs using the Techstream.

      Result

      Result Proceed to
      Only DTC P2714 is output A
      P2714 and other DTCs are output B

      HINT: 

      If a solenoid is stuck ON, DTCs for several solenoids including the malfunctioning solenoid will be detected.

    Result:  2

    B 

    See step  4

    Result:  1

    A 

    See step  2

  2. INSPECT SHIFT SOLENOID VALVE SLT 
    1. Remove shift solenoid valve SLT.
      GTY423887Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 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 a battery positive (+) lead with a 21 W bulb to terminal 2 and a negative (-) lead to terminal 1 of the solenoid valve connector. Then check that the valve moves and makes an operating sound.

      OK

      Valve moves and makes an operating sound.

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    REPLACE SHIFT SOLENOID VALVE SLT. Refer to  COMPONENTS [12/2013 - 11/2016] 

    Result:  1

    OK 

    See step  3

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

      Refer to REMOVAL [12/2013 - 11/2016]

      OK

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

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    REPLACE AUTOMATIC TRANSAXLE ASSEMBLY. Refer to  COMPONENTS [12/2013 - 11/2016] 

    Result:  2

    NG 

    REPLACE TRANSMISSION VALVE BODY ASSEMBLY. Refer to  COMPONENTS [12/2013 - 11/2016] 

  4. PERFORM ACTIVE TEST USING TECHSTREAM (SHIFT SOLENOID VALVE SLT) 
    NOTE:
    • Perform a test at the normal operating Automatic Transmission Fluid (ATF) temperature: 50 to 80°C (122 to 176°F)
    • Be careful to prevent the SST hose from contacting the exhaust pipe.
    • This check must be conducted after checking and adjusting the engine.
    • Perform the test with the air conditioning off.

    HINT: 

    Using the Techstream to perform Active Tests 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 Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

    1. Turn the ignition switch off.
    2. Lift the vehicle up.
    3. Remove the test plug on the transmission case center right side and connect SST.
      GTY452266Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • SST: 09992-00095 
        • 09992-00231
        • 09992-00271
    4. Lower the vehicle.
    5. Fully apply the parking brake and chock all 4 wheels.
    6. Connect the Techstream to the DLC3.
    7. Start the engine.
    8. Warm up the Automatic Transmission Fluid (ATF).
    9. Measure the line pressure when the engine is idling.
    10. Turn the Techstream on.
    11. Enter the following menus: Powertrain / ECT / Active Test.
    12. Follow the instructions on the Techstream and perform the Active Test.
    13. Measure the line pressure with SST.

      Powertrain > ECT > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Activate the Solenoid (SLT) Operates shift solenoid SLT to raise the line pressure. ON/OFF
      HINT: 
      ON: No action (normal operation)
      OFF: Line pressure up (When the Active Test of "Activate the Solenoid (SLT)" is performed, the TCM commands the SLT solenoid to turn off).      		 [Vehicle Condition]
      • Vehicle Stopped
      • IDL: ON

      Powertrain > ECT > Active Test 

      Tester Display
      Activate the Solenoid (SLT)
      • "Activate the Solenoid (SLT)" in the Active Test is performed to check that the line pressure changes by connecting SST to the automatic transaxle. The same SST is used in the Hydraulic Test as well.

        Refer to HYDRAULIC TEST [12/2013 - 11/2016]

      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:  2

    NG 

    See step  2

    Result:  1

    OK 

    See step  5

  5. PERFORM ACTIVE TEST USING TECHSTREAM (SHIFTING TEST) 
    NOTE:

    This test should always be performed with at least 2 people.

    1. Warm up the engine.
    2. Turn the ignition switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the ignition switch to ON.
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / ECT / Active Test.
    7. According to the display on the Techstream, perform the Active Test.

      HINT: 

      Comparing the gear commanded by the Active Test with the actual gear enables confirmation of the problem.

      Refer to FAIL-SAFE CHART [12/2013 - 11/2016]

      Powertrain > ECT > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Control the Shift Position Operates the shift solenoid valves to allow gears to selected manually.
      • Press "→" button: Upshift occurs
      • Press "←" button: Downshift occurs
      		 Can be used to check the operation of the shift solenoid valves.
      Upshifts and downshifts should be performed consecutively. A 10-second interval is required between gear changes.
      Do not downshift at high speeds. Doing so will damage the automatic transaxle.
      [Vehicle Condition]
      50 km/h (30 mph) or less

      Powertrain > ECT > Active Test 

      Tester Display
      Control the Shift Position
      NOTE:
      • This test can be conducted when the vehicle is stopped.
      • When shifting gears using the Active Test function, do not operate the accelerator pedal for 2 seconds before and after shifting gears.

      HINT: 

      The gear commanded by the TCM is shown in the Data List / Shift Status display on the Techstream.

    8. Check the vehicle speed and the gear when the engine speed is 1000 rpm.

      HINT: 

      Because the torque converter clutch has not engaged, it may be difficult to obtain the speeds specified in 4th, 5th, and 6th gear, however a difference of speed should still be evident following each gear change.

      Standard

      1st 2nd 3rd 4th 5th 6th
      8 to 12 km/h (5 to 7.5 mph) 15 to 19 km/h (9.3 to 11.8 mph) 21 to 25 km/h (13.0 to 15.5 mph) 31 to 35 km/h (19.3 to 21.7 mph) 44 to 48 km/h (27.3 to 29.8 mph) 52 to 56 km/h (32.3 to 34.8 mph)
    9. Compare the TCM commanded gear and the actual gear.

      Result

      Actual Gear during Malfunction TCM Commanded Gear Proceed to
      1st 2nd 3rd 4th 5th 6th
      Shift solenoid SL1 Stuck ON 1st 2nd 3rd 4th 4th 4th A
      Stuck OFF N*1 N*1 N*1 N*1 5th 6th
      Shift solenoid SL2 Stuck ON 4th 4th 4th 4th 5th 6th B
      Stuck OFF 1st 2nd 3rd 1st N*1 N*1
      Shift solenoid SL3 Stuck ON 2nd 2nd 3rd 4th 5th 6th C
      Stuck OFF 1st 1st 3rd 4th 5th N*1
      Shift solenoid SL4 Stuck ON*3 3rd 3rd 3rd 4th 5th 5th D
      Stuck OFF 1st 2nd 1st 4th N*1 6th
      Shift solenoid SLT Stuck ON N*2 N*2 N*2 N*2 N*2 N*2 E
      Stuck OFF*3 1st 2nd 3rd 4th 5th 6th

      HINT: 

      • *1: Neutral
      • *2: If shift solenoid SLT is stuck on, the line pressure will be low. Therefore, the amount of torque that can be transmitted by each gear is lower than the normal limit. When the engine power exceeds this lowered limit, the engine speed will increase freely.
      • *3: When shift solenoid SLT is stuck off, gear shifting is normal.

    Result:  1

    A 

    GO TO DTC CHART (RELATED SHIFT SOLENOID VALVE (SL1) PERFORMANCE DTC P0746). Refer to  DTC P0746: Pressure Control Solenoid "A" Performance (Shift Solenoid Valve SL1) [12/2013 - 11/2016]  

    Result:  2

    B 

    GO TO DTC CHART (RELATED SHIFT SOLENOID VALVE (SL2) PERFORMANCE DTC P0776). Refer to  DTC P0776: Pressure Control Solenoid "B" Performance (Shift Solenoid Valve SL2) [12/2013 - 11/2016]  

    Result:  3

    C 

    GO TO DTC CHART (RELATED SHIFT SOLENOID VALVE (SL3) PERFORMANCE DTC P0796). Refer to  DTC P0796: Pressure Control Solenoid "C" Performance (Shift Solenoid Valve SL3) [12/2013 - 11/2016]  

    Result:  4

    D 

    GO TO DTC CHART (RELATED SHIFT SOLENOID VALVE (SL4) PERFORMANCE DTC P2808). Refer to  DTC P2808: Pressure Control Solenoid "G" Performance (Shift Solenoid Valve SL4) [12/2013 - 11/2016]  

    Result:  5

    E 

    See step  2

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