Purpose/Function
Shift solenoid No.4 adjusts the hydraulic pressure in the high clutch circuit and the low and reverse brake circuit based on the current demand from the TCM according to the vehicle conditions.
Construction
Shift solenoid No.4 is installed to the solenoid control valve body.
Shift solenoid No.4 is a normal open-type linear solenoid.

Operation
Adjusts the high clutch pressure and the low and reverse brake pressure by increasing/decreasing the energization current to shift solenoid No.4 according to the signal from the TCM.
Shift Solenoid No.3 [Fw6 A EL, Fw6 Ax EL]
Turbine/Input Shaft Speed Sensor, Output Shaft Speed Sensor [Fw6 A EL, Fw6 Ax
EL]Shift Pressure Control (Line Pressure Control) [Fw6 A EL, Fw6 Ax EL]
Outline
The TCM drives the pressure control solenoid and adjusts the pressure based
on the accelerator pedal depression amount, vehicle speed, ATF temperature,
and gear shift signal. As a result, line pressure is controlled finely and with
high accuracy according to the engine load c ...
Essential Information
Introduction
Be extremely careful and prevent injury to yourself and others or damage to your
vehicle when using this manual for inspection and maintenance.
If you are unsure about any procedure it describes, we strongly urge you to have
a reliable and qualified service shop perform the work ...
Tie Rod Inspection
1. Inspect for bending and damage.
If there is any malfunction, replace the tie rod.
2. Inspect for excessive play.
If there is any malfunction, replace the tie rod.
3. Swing the tie rod five times.
4. Measure the swing torque of the tie rod using a pull scale.
...