Toyota Supra User Booklet page 140

No. 2 Vehicle Speed Sensor (Main Sensor)
The No. 2 vehicle speed sensor used in both types of the new A340E transmission has been changed from the
previous lead–switch type to the pick–up coil type.
This sensor consists of a permanent magnet, coil and yoke. A rotor having 4 teeth is installed to the transmission
output shaft and rotates as a unit.
When the transmission output shaft rotates, the clearance between the yoke (front end) and the rotor decreases
and increases because of the teeth. Accordingly, the number of lines of magnetic force passing through the yoke
increase or decreases, and the AC voltage is generated in the coil. The frequency of this AC voltage is
proportional to the speed of the rotor and is used to detect the vehicle speed.
For 2JZ–GTE Engine
Solenoid Valves
1) Outline
The application of the solenoid valves are
indicated in the table on the right.
The solenoids of the A340E transmission for
the 2JZ–GE engine model are the same as those
of the previous model. However, the No. 3
solenoid valve in the 2JZ–GTE engine model
has been changed to the liner type, and the liner
type No. 4 and No. 5 solenoid valves have been
newly added.
The liner type solenoid valve controls the
hydraulic pressure by regulating the opening
area according to the amount of electric current
applied.
The functions and connections of the newly
adopted solenoid valves that were indicated in
the right table are shown below.
CHASSIS — A340E AUTOMATIC TRANSMISSION
Solenoid Valve ApplicationA
Solenoid
Type Comment
Valve
No. 1 ON–OFF No Change
No. 2 ON–OFF No Change
ON–OFF No Change
No. 3 No 3
Liner Newly Adopted
No. 4 Liner Newly Adopted
No. 5 Liner Newly Adopted
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For For
2JZ– 2JZ–
GE GTE
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