AUTOMATIC TRANSMISSION SYSTEM, Diagnostic DTC:P2714

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

DESCRIPTION

Based on signals from the accelerator position sensor and transmission revolution sensors (NC3, SP2 and NT), the TCM controls the solenoid valve (SLT) using a predetermined duty ratio*. As a result, the line pressure is adjusted to a pressure that is appropriate for the throttle angle and engine output. Based on the rotation speed signals from the transmission revolution sensors (NT, NC3 and SP2), the TCM calculates the heat level of the friction material, and detects clutch slippage, etc.

Tech Tips

*: The duty ratio is the ratio of the current ON time (A) to the total of the current ON and OFF time (A + B).

Duty Ratio (%) = A / (A + B) x 100

B002EE4E01
DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2714 Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT)

All of the following conditions are met (2 trip detection logic)


  • Engine coolant temperature is 40°C (104°F) or more

  • ATF temperature is -10°C (14°F) or more

  • The vehicle is driven with the shift lever in D

  • No malfunctions are detected in shift solenoid valve SL1, 2, 3, 4 and 5, SR, transmission revolution sensors (NT, SP2), water temperature sensor, oil temperature sensor, knock control sensor, electronic throttle, or CAN

  • The engine overruns at engine torque that is above each gear's set engine torque. The clutch is judged to be slipping, and friction material is overheated beyond a specified threshold.

  • Shift solenoid valve SL1

  • Shift solenoid valve SL2

  • Shift solenoid valve SL3

  • Shift solenoid valve SL4

  • Shift solenoid valve SL5

  • Shift solenoid valve SLT

  • Valve body assembly

  • Automatic transmission assembly

 Comes on DTC stored

MONITOR DESCRIPTION

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

When the shift solenoid valve SLT remains ON, oil pressure goes down and clutch engagement force decreases.

Note

If driving continues under these conditions, the clutches will burn out and the vehicle will no longer be drivable.

CAUTION / NOTICE / HINT

Note

Perform registration and/or initialization when parts related to the automatic transmission are replaced.

Click here

Tech Tips

After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Perform the D Position Shift Test in Road Test.

    Click here

  2. Turn the engine switch off.

  3. Perform step (1) again.

  4. Check for DTCs again.

    Click here

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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


      Powertrain > ECT > Trouble Codes

    5. Read the DTCs using the GTS.

      Result
      Result Proceed to
      Only DTC P2714 is output A
      P2714 and one or more of the following DTCs are output: P0746, P0771, P0776, P0796, P2808, P2817 B
      P0746, P0771, P0776, P0796, P2714, P2808 or P2817 and other DTCs are output C

      Tech Tips

      If any DTCs other than P0746, P0771, P0776, P0796, P2714, P2808 and P2817 are output, perform troubleshooting for those DTCs first.


    B

    CHECK DTC OUTPUT Click here

    C

    GO TO DTC CHART Click here

    A

  2. INSPECT SHIFT SOLENOID VALVE SLT


    1. B002E4SC46
      *a

      Component without harness connected

      (Shift Solenoid Valve SLT)

      Remove the shift solenoid valve SLT.

      Click here

    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 2 and a negative (-) lead to terminal 1 of the 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

    NG

    REPLACE SHIFT SOLENOID VALVE SLT Click here

    OK

  3. INSPECT TRANSMISSION VALVE BODY ASSEMBLY


    1. Check the transmission valve body assembly.

      Click here

      OK
      There is no foreign matter on each valve and they operate smoothly.
      Result
      Proceed to
      OK
      NG

    OK

    REPAIR OR REPLACE AUTOMATIC TRANSMISSION ASSEMBLY Click here

    NG

    REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY Click here

  4. CHECK DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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


      Powertrain > ECT > Trouble Codes

    5. Check if DTCs other than P2714 are output.

      Result
      Result Proceed to
      P2714 and P0746 are output A

      • P2714, P0771 and P0776 are output

      • P2714 and P0776 are output

      		 B

      • P2714, P0771 and P0796 are output

      • P2714 and P0796 are output

      • P2714, P0796 and P2808 are output

      		 C
      P2714 and P2808 are output D
      P2714 and P2817 are output E

    A

    GO TO DTC P0746 FLOWCHART Click here

    B

    GO TO DTC P0776 FLOWCHART Click here

    C

    GO TO DTC P0796 FLOWCHART Click here

    D

    GO TO DTC P2808 FLOWCHART Click here

    E

    GO TO DTC P2817 FLOWCHART Click here