P2714

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

DESCRIPTION








The throttle pressure that is applied to the primary regulator valve (which modulates the line pressure) causes the solenoid valve SLT, under electronic control, to precisely modulate and generate the line pressure according to the extent that the accelerator pedal is depressed or the output of engine power. This controls the line pressure and provides smooth shifting characteristics.

Upon receiving a signal of the throttle valve opening angle, the ECM controls the line pressure by sending a predetermined duty ratio* to the solenoid valve, modulating the line pressure and generating throttle pressure.

HINT:
*: 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

MONITOR DESCRIPTION
The ECM calculates the amount of heat absorbed by the friction material based on the difference in revolution (clutch slippage) between the turbine and output shaft. The ECM illuminates the MIL and outputs 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.

NOTICE: If you continue driving under these conditions, the clutch will burn out and the vehicle will no longer be drivable.

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

Wiring Diagram:

HINT: Performing the intelligent tester's ACTIVE TEST allows relay, VSV, actuator and other items to be operated without removing any parts. Performing the ACTIVE TEST early in troubleshooting is one way to save time.

The DATA LIST can be displayed during the ACTIVE TEST
1. Warm up the engine.
2. Turn the ignition switch OFF.
3. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
4. Turn the ignition switch ON.
5. Turn the intelligent tester ON.
6. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST





7. Follow the instructions on the tester and read the ACTIVE TEST
*: Control the Line Pressure Up 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. Hydraulic Test
Please note that the pressure values in the ACTIVE TEST and HYDRAULIC TEST are different.

INSPECTION PROCEDURES

Steps 1-3:

Step 3(continued):