Toyota RAV4 manuals

Toyota Sienna Service Manual: Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)

Toyota Sienna Service Manual / U151e automatic transaxle / Automatic transaxle system / Diagnostic trouble code chart / Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)

DESCRIPTION

The linear 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 cycle of the SLT solenoid valve 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(%)

Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)

MONITOR DESCRIPTION

When an open or short in the linear solenoid valve (SLT) circuit is detected, the ECM interprets this as a fault. The ECM will turn on the MIL and store the DTC.

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

COMPONENT OPERATING RANGE

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT TRANSMISSION WIRE (SLT)

INSPECT TRANSMISSION WIRE (SLT)

(a) Disconnect the transmission wire connector from the transaxle.

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

Standard resistance

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

Standard resistance (Check for short)

2 CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)

CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)

(a) Connect the transmission wire connector to the transaxle.

(b) Disconnect the ECM connector.

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

Standard resistance

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

Standard resistance (Check for short)

REPLACE ECM

3 INSPECT SHIFT SOLENOID VALVE SLT

INSPECT SHIFT SOLENOID VALVE SLT

(a) Remove the shift solenoid valve (SLT).

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

Standard resistance

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

OK: The solenoid makes an operating sound.

REPAIR OR REPLACE TRANSMISSION WIRE

Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT)
SYSTEM DESCRIPTION The linear solenoid valve (SLT) controls the transmission line pressure for smooth transmission operation based on signals from the throttle position sensor and the vehicle spee ...

Torque Converter Clutch Solenoid Circuit
DESCRIPTION The shift solenoid valve DSL is turned "ON" and "OFF" by signals from the ECM in order to control the hydraulic pressure operation, the lock-up relay valve, whi ...

Other materials:

Manual headlight leveling dial (vehicles with discharge headlights)
The level of the headlight aim can be adjusted according to the number of passengers and the loading condition of the vehicle. Raises the level of the headlights Lowers the level of the headlights Guide to dial settings Daytime running light system (if equipped) Bulb type: To ...

Problem symptoms table
POWER BACK DOOR SYSTEM Symptom Suspected Area Power back door does not operate when switch* is pressed (* Switch indicates the satellite switch for power back door) ECU-B fuse Power back door main switch Satellite switch Power back door tou ...

Setting the vehicle speed (vehicle-to-vehicle distance control mode)
Press the “ON-OFF” button to activate the cruise control. Dynamic radar cruise control indicator will be displayed. Press the button again to deactivate the cruise control. Accelerate or decelerate the vehicle to the desired speed, and push the lever down to set ...

© 2011-2022 Copyright www.tsienna.net