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AUTOMATIC TRANSMISSION SYSTEM(for 3UR-FE), Diagnostic DTC:P2714

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DTC Code DTC Name
P2714 Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT)
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DESCRIPTION

Shift solenoid valve SLT controls the transmission line pressure for smooth transmission operation based on signals from the throttle position sensor and vehicle speed sensor. The ECM adjusts the current to shift solenoid valve SLT to control the hydraulic line pressure coming from the primary regulator valve. Appropriate line pressure assures smooth shifting with varying engine outputs.

DTC Code DTC Detection Condition Trouble Area
P2714 The ECM detects a malfunction in shift solenoid valve SLT (ON side) according to the difference in speed of the turbine and output shaft, and also by the oil pressure (1 trip detection logic).

  • Shift solenoid valve SLT remains open or closed

  • Shift solenoid valve S1, S2, S3, S4 or SL2 remains open or closed

  • Gear 6 incorrect ratio (sequence valve) or 1-2 shift valve is stuck

  • Valve body is blocked

  • Automatic transmission (clutch, brake, gear, etc.)
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MONITOR DESCRIPTION

The ECM calculates the amount of heat absorbed by the friction material based on the difference in speed (clutch slippage) between the turbine and output shaft. The ECM illuminates the MIL and stores this DTC when the amount of heat absorption exceeds the specified value.

There are two reasons that the speed may be different.


Note:

If the vehicle continues to be driven under these conditions, the clutch will burn out and the vehicle will no longer be drivable.

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PROCEDURE


  1. Click here

    CHECK DTC OUTPUT (IN ADDITION TO DTC P2714)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    5. Read the DTCs using the intelligent tester.

      Table 1. Result
      Result Proceed to
      Only P2714 is output A
      P2714 and other DTCs are output B
      Tip:

      If any other codes besides P2714 are output, perform troubleshooting for those DTCs first.


  2. Click here

    PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SHIFT SOLENOID VALVE SLT)

    Note:

    • Perform the test while the ATF temperature is between 50 and 80°C (122 and 176°F).

    • Be careful to prevent the hose of SST from interfering with the exhaust pipe.

    • Perform the test with the A/C off.

    Tip:

    Using the intelligent tester 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. A01X798E01

      Remove the test plug on the transmission case and connect SST.

      09992-00095 09992-00231 09992-00271

    2. Connect the intelligent tester to the DLC3.

    3. Start the engine and warm it up.

    4. Measure the line pressure with SST.

    5. Turn the intelligent tester on.

    6. Enter the following menus: Powertrain / Engine and ECT / Active Test.

    7. According to the display on the intelligent tester, perform the Active Test.

    8. Measure the line pressure.

      Table 2. Engine and ECT
      Tester Display Test Part Control Range Diagnostic Note
      Activate the Solenoid (SLT)* Operate the shift solenoid SLT and raise line pressure

      ON or OFF

      Tip:

      • OFF: Line pressure up (when Active Test "Activate the Solenoid (SLT)" is performed, ECM commands SLT solenoid to turn OFF)

      • ON: No action (normal operation)

      [Vehicle Condition]


      • Vehicle stopped

      • Engine idling
      Tip:

      *: Activate the Solenoid (SLT) in the Active Test is performed to check the line pressure changes by connecting SST to the automatic transmission, which is used in the Hydraulic Test (Click here) as well. Please note that the pressure values in the Active Test and Hydraulic Test are different.

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

  3. Click here

    PERFORM ACTIVE TEST USING INTELLIGENT TESTER (RUNNING TEST)

    Tip:

    Using the intelligent tester 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. Connect the intelligent tester to the DLC3.

    2. Clear the DTC (Click here).

    3. Enter the following menus: Powertrain / Engine and ECT / Active Test.

    4. According to the display on the intelligent tester, perform the Active Test.

      Tip:

      While driving, the shift position can be forcibly changed with the intelligent tester.

      Table 3. Engine and ECT
      Tester Display Test Part Control Range Diagnostic Note
      Control the Shift Position Operate shift solenoid valves and set each shift position by yourself

      • 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
      Tip:

      • This test can be conducted when the vehicle speed is 50 km/h (30 mph) or less.

      • The 4th to 5th and 5th to 6th up-shift must be performed with the accelerator pedal released.

      • The 6th to 5th and 5th to 4th down-shift 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 display on the intelligent tester.

    5. Compare the ECM gear shift command and actual gear position.

      Table 4. Result
      ECM gear shift command 1st 2nd 3rd 4th 5th 6th Proceed to
      Actual gear position under malfunction Shift solenoid S1 Stuck ON*1 2nd 2nd 3rd 4th 5th 6th A
      Stuck OFF 1st 1st 3rd 4th 5th N*2
      Shift solenoid S2 Stuck ON 1st 2nd 2nd 4th 6th 6th B
      Stuck OFF 3rd 3rd 3rd 4th 5th 5th
      Shift solenoid S3 Stuck ON 1st 2nd 3rd 3rd N*2 N*2 C
      Stuck OFF 3rd 4th 4th 4th 5th 6th
      Shift solenoid S4 Stuck ON*3 1st 2nd 3rd 4th 5th 6th D
      Stuck OFF 1st 2nd 3rd 4th 4th 4th
      Actual gear position when normal 1st 2nd 3rd 4th 5th 6th E
      Tip:

      • *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.


  4. Click here

    INSPECT SHIFT SOLENOID VALVE S1


    1. A01X2D1E04

      Remove the shift solenoid valve S1.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Shift solenoid valve S1 connector terminal - Shift solenoid valve S1 body 20°C (68°F) 11 to 15 Ω

    3. Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.

      OK
      Measurement Condition Specified Condition

      • Battery positive (+) → Shift solenoid valve S1 connector

      • Battery negative (-) → Shift solenoid valve S1 body

      		 Valve moves and makes an operating noise
      Table 5. Text in Illustration
      *a

      Component without harness connected

      (Shift Solenoid Valve S1)

  5. Click here

    INSPECT TRANSMISSION VALVE BODY ASSEMBLY


    1. Check the transmission valve body assembly.

      OK
      There are no foreign objects on each valve.

  6. Click here

    INSPECT TORQUE CONVERTER ASSEMBLY


    1. Check the torque converter assembly (Click here).

      OK
      The torque converter operates normally.

    • OK

      REPAIR OR REPLACE AUTOMATIC TRANSMISSION ASSEMBLY (Click here)

    • NG

      REPLACE TORQUE CONVERTER ASSEMBLY (Click here)

  7. Click here

    INSPECT SHIFT SOLENOID VALVE SLT


    1. B00201YE06

      Remove 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. Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.

      OK
      Measurement Condition Specified Condition

      • Battery positive (+) with a 21 W bulb → Terminal 2

      • Battery negative (-) → Terminal 1

      		 Valve moves and makes an operating noise
      Table 6. Text in Illustration
      *a

      Component without harness connected

      (Shift Solenoid Valve SLT)

  8. Click here

    INSPECT TRANSMISSION VALVE BODY ASSEMBLY


    1. Check the transmission valve body assembly.

      OK
      There are no foreign objects on each valve.

  9. Click here

    INSPECT TORQUE CONVERTER ASSEMBLY


    1. Check the torque converter assembly (Click here).

      OK
      The torque converter operates normally.

    • OK

      REPAIR OR REPLACE AUTOMATIC TRANSMISSION ASSEMBLY (Click here)

    • NG

      REPLACE TORQUE CONVERTER ASSEMBLY (Click here)

  10. Click here

    INSPECT SHIFT SOLENOID VALVE S2


    1. A01X2X2E03

      Remove the shift solenoid valve S2.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Shift solenoid valve S2 connector terminal - Shift solenoid valve S2 body 20°C (68°F) 11 to 15 Ω

    3. Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.

      OK
      Measurement Condition Specified Condition

      • Battery positive (+) → Shift solenoid valve S2 connector

      • Battery negative (-) → Shift solenoid valve S2 body

      		 Valve moves and makes an operating noise
      Table 7. Text in Illustration
      *a

      Component without harness connected

      (Shift Solenoid Valve S2)

  11. Click here

    INSPECT TRANSMISSION VALVE BODY ASSEMBLY


    1. Check the transmission valve body assembly.

      OK
      There are no foreign objects on each valve.

  12. Click here

    INSPECT TORQUE CONVERTER ASSEMBLY


    1. Check the torque converter assembly (Click here).

      OK
      The torque converter operates normally.

    • OK

      REPAIR OR REPLACE AUTOMATIC TRANSMISSION ASSEMBLY (Click here)

    • NG

      REPLACE TORQUE CONVERTER ASSEMBLY (Click here)

  13. Click here

    INSPECT SHIFT SOLENOID VALVE S3


    1. A01X2D1E05

      Remove the shift solenoid valve S3.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Shift solenoid valve S3 connector terminal - Shift solenoid valve S3 body 20°C (68°F) 11 to 15 Ω

    3. Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.

      OK
      Measurement Condition Specified Condition

      • Battery positive (+) → Shift solenoid valve S3 connector

      • Battery negative (-) → Shift solenoid valve S3 body

      		 Valve moves and makes an operating noise
      Table 8. Text in Illustration
      *a

      Component without harness connected

      (Shift Solenoid Valve S3)

  14. Click here

    INSPECT TRANSMISSION VALVE BODY ASSEMBLY


    1. Check the transmission valve body assembly.

      OK
      There are no foreign objects on each valve.

  15. Click here

    INSPECT TORQUE CONVERTER ASSEMBLY


    1. Check the torque converter assembly (Click here).

      OK
      The torque converter operates normally.

    • OK

      REPAIR OR REPLACE AUTOMATIC TRANSMISSION ASSEMBLY (Click here)

    • NG

      REPLACE TORQUE CONVERTER ASSEMBLY (Click here)

  16. Click here

    INSPECT SHIFT SOLENOID VALVE S4


    1. A01X8X6E04

      Remove the shift solenoid valve S4.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Shift solenoid valve S4 connector terminal - Shift solenoid valve S4 body 20°C (68°F) 11 to 15 Ω

    3. Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.

      OK
      Measurement Condition Specified Condition

      • Battery positive (+) → Shift solenoid valve S4 connector

      • Battery negative (-) → Shift solenoid valve S4 body

      		 Valve moves and makes an operating noise
      Table 9. Text in Illustration
      *a

      Component without harness connected

      (Shift Solenoid Valve S4)

  17. Click here

    INSPECT SHIFT SOLENOID VALVE SL2


    1. B001YVTE12

      Remove the 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. Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.

      OK
      Measurement Condition Specified Condition

      • Battery positive (+) with a 21 W bulb → Terminal 1

      • Battery negative (-) → Terminal 2

      		 Valve moves and makes an operating noise
      Table 10. Text in Illustration
      *a

      Component without harness connected

      (Shift Solenoid Valve SL2)

  18. Click here

    INSPECT TRANSMISSION VALVE BODY ASSEMBLY


    1. Check the transmission valve body assembly.

      OK
      There are no foreign objects on each valve.

  19. Click here

    INSPECT TORQUE CONVERTER ASSEMBLY


    1. Check the torque converter assembly (Click here).

      OK
      The torque converter operates normally.

    • OK

      REPAIR OR REPLACE AUTOMATIC TRANSMISSION ASSEMBLY (Click here)

    • NG

      REPLACE TORQUE CONVERTER ASSEMBLY (Click here)

  20. Click here

    INSPECT SHIFT SOLENOID VALVE SLT


    1. B00201YE06

      Remove the 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. Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.

      OK
      Measurement Condition Specified Condition

      • Battery positive (+) with a 21 W bulb → Terminal 2

      • Battery negative (-) → Terminal 1

      		 Valve moves and makes an operating noise
      Table 11. Text in Illustration
      *a

      Component without harness connected

      (Shift Solenoid Valve SLT)

  21. Click here

    INSPECT TRANSMISSION VALVE BODY ASSEMBLY


    1. Check the transmission valve body assembly.

      OK
      There are no foreign objects on each valve.

  22. Click here

    INSPECT TORQUE CONVERTER ASSEMBLY


    1. Check the torque converter assembly (Click here).

      OK
      The torque converter operates normally.

    • OK

      REPAIR OR REPLACE AUTOMATIC TRANSMISSION ASSEMBLY (Click here)

    • NG

      REPLACE TORQUE CONVERTER ASSEMBLY (Click here)