DTC P2714: Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT) [11/2021 - ]: Description

WARNING: This page is about a different car, the 2024 Lexus IS 500, 2023 Lexus IS 500, and 2022 Lexus IS 500. However, it is still accessible from the selected car via links, so may be relevant.

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.

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

Fig 1: Hydraulic Pressure Graph

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory
P2714	Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT)	1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other Engine coolant temperature is 40°C (104°F) or more, ATF temperature is -10°C (14°F) or more, and 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, SLT, transmission revolution sensors (NT, NC3, SP2), water temperature sensor, oil temperature sensor, knock control sensor, electronic throttle, or CAN2) 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. - 2-trip detection logic	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 Torque converter assembly Automatic transmission assembly	Comes on	DTC stored