Dtc P2714 Pressure Control Solenoid D Performance (Shift Solenoid Valve Slt). Corolla ZZE150

Трансмиссия. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Автоматическая Трансмиссия U341E. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

ОПИСАНИЕ СИСТЕМЫ

MONITOR DESCRIPTION

INSPECTION PROCEDURE

CHECK OTHER DTCS OUT PUT (IN ADDITION TO DTC P2714)

INSPECT SHIFT SOLENOID VALVE SLT

INSPECT TRANSMISSION VALVE BODY ASSEMBLY

INSPECT TORQUE CONVERTER CLUTCH ASSEMBLY

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


ОПИСАНИЕ СИСТЕМЫ

The shift solenoid valve SLT controls the transmission line pressure for smooth transmission operation based on signals from the throttle position sensor and the vehicle speed sensor. The ECM adjusts the duty ratio (*) of the shift solenoid valve SLT to control hydraulic line pressure coming from the primary regulator valve. Appropriate line pressure assures smooth shifting with varying engine outputs.
(*): Duty Ratio
The duty ratio is the ratio of the period of continuity in one cycle. For example, if A is the period of continuity in one cycle, and B is the period of non-continuity, then
Duty Ratio = A/(A + B) x 100 (%)
COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Автоматическая Трансмиссия U341E.Система Автоматической Трансмиссии. Dtc P2714 Pressure Control Solenoid D Performance (Shift Solenoid Valve Slt)

DTC No.
DTC Detection Condition
Trouble Area
P2714
ECM detects a malfunction on SLT (ON side) according to the revolution difference of the turbine, intermediate and the output shaft, and also by the oil pressure. (2-trip detection logic)
  1. Shift solenoid valve SLT remains closed
  2. Valve body is blocked
  3. Torque converter clutch
  4. Automatic transaxle (clutch, brake or gear, etc.)

MONITOR DESCRIPTION

In any forward position, when the difference between the revolutions of the turbine, Intermediate and output shaft exceeds the specified value (varies with Intermediate, output speed) determined by the ECM, the ECM illuminates the MIL and store the DTC.
When shift solenoid valve SLT remains on, the oil pressure goes down and the clutch engagement force decreases.
ПРИМЕЧАНИЕ:
If you continue driving under these conditions, the clutch will burn out and the vehicle will no longer be drivable.

INSPECTION PROCEDURE

1.CHECK OTHER DTCS OUT PUT (IN ADDITION TO DTC P2714)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch on (IG) and turn the intelligent tester main switch on.

  1. When you use intelligent tester:
    Select the item "Powertrain / Engine and ECT / DTC / Current or Pending".

  1. Read the DTCs using the intelligent tester.


Result:

Result
Proceed to
P2714
A
P2714 and other DTCs
B
УКАЗАНИЕ:
If any other codes besides "P2714" are output, perform the troubleshooting for those DTCs first.


B
GO TO DTC CHART (Нажмите здесь)
A


2.INSPECT SHIFT SOLENOID VALVE SLT


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Автоматическая Трансмиссия U341E.Система Автоматической Трансмиссии. Dtc P2714 Pressure Control Solenoid D Performance (Shift Solenoid Valve Slt)

  1. Remove the shift solenoid valve SLT.

  1. 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

  1. Connect the positive (+) lead with a 21 W bulb to terminal 2 and negative (-) lead to terminal 1 of the solenoid valve connector, then check the movement of the valve.

    OK:
    The solenoid makes an operating sound.


NG
REPLACE SHIFT SOLENOID VALVE SLT (Нажмите здесь)
OK


3.INSPECT TRANSMISSION VALVE BODY ASSEMBLY
OK:
There are no foreign objects on each valve.


NG
REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY (Нажмите здесь)
OK


4.INSPECT TORQUE CONVERTER CLUTCH ASSEMBLY
OK:
The torque converter clutch operates normally.


NG
REPLACE TORQUE CONVERTER CLUTCH ASSEMBLY (Нажмите здесь)
OK

REPAIR OR REPLACE AUTOMATIC TRANSAXLE ASSEMBLY (Нажмите здесь)