1995 TOYOTA SUPRA Service Repair Manual

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Page 489 of 2543

TOYOTA SUPRA 1995 Service Repair Manual ± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONOPERATIONAT2±5

Page 490 of 2543

TOYOTA SUPRA 1995 Service Repair Manual HYDRAULIC CONTROL SYSTEM
The hydraulic control system is composed of an oil pump, valve body, solenoid valves, accumulators,
clutches and brakes, as well as the fluid passages which connect all of the

Page 491 of 2543

TOYOTA SUPRA 1995 Service Repair Manual ELECTRONIC CONTROL SYSTEM
The electronic control system for the A340E automatic transmission provides extremely precise control of
the gear shift timing and lock±up timing in response to driving cond

Page 492 of 2543

TOYOTA SUPRA 1995 Service Repair Manual SYSTEM DIAGRAM
AT2±8± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONOPERATION

Page 493 of 2543

TOYOTA SUPRA 1995 Service Repair Manual ± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONOPERATIONAT2±9

Page 494 of 2543

TOYOTA SUPRA 1995 Service Repair Manual ARRANGEMENT OF COMPONENTS
ComponentsFunction
Pattern Select Switch

Page 495 of 2543

TOYOTA SUPRA 1995 Service Repair Manual O/D Direct Clutch Speed Sensor Detects the input shaft speed from 1st gear to 3rd gear
Engin

O/D Direct Clutch Speed Sensor Detects the input shaft speed from 1st gear to 3rd gear
Engine Coolant Temp. Sensor Detects the engine coolant temp.

ECM

Controls the engine and transmission actuators based on signals from
each sensor.

No.1 and No.2 Solenoid Valves

Control the hydraulic pressure applied to each shift valve, and control the
gear position and timing.

No.4 Solenoid Valve
(For accumulator back pressure modulation)

Controls the hydraulic pressure applied to the back chamber of the accu-
mulator and smoothes the engagement of clutches and brakes during
shifting.

No.3 Solenoid Valve
(For lock±up control pressure modulation)

Controls the hydraulic pressure applied to the lock±up clutch and controls
lock±up timing.

No.5 Solenoid Valve
(For line pressure modulation)
Controls the line pressure.

O/D OFF Indicator Light

Blinks and warns the driver, while the O/D main switch is pushed in,
when the electronic control circuit is malfunctioning.
A/T Fluid Temp. Sensor Detects A/T fluid temp.
± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONOPERATIONAT2±11

Page 496 of 2543

TOYOTA SUPRA 1995 Service Repair Manual 09032±00100 Oil Pan Seal Cutter
09308±00010 Oil Seal Puller
09309±37010 Transmission Bearing Replacer
09350±30020 TOYOTA Automatic Transmission
Tool Set
(09351±32010) One±way Clut

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