sensor TOYOTA SUPRA 1995 Service Service Manual

A340E(Others) AUTOMATIC TRANSMISSIONSERVICE SPECIFICATIONS -
AT-32
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Stator shaft x Oil pump body101007
Upper valve body x Lower valve body6.46556 in.´lbf
Detent spring x Valve body101007
Parking lock pawl bracket7.47565 in.´lbf
Overdrive support x Transmission case2526019
Oil pump x Transmission case2222016
Valve body x Transmission case101007
Oil strainer x Valve body101007
Solenoid x Valve body101007
Oil pan x Transmission case7.47565 in.´lbf
Extension housing x Transmission case3637027
Transmission housing 10 mm bolt
12 mm bolt34
57345
58025
42
Union2930022
Vehicle speed sensor1616012
Park/Neutral position switch6.97061 in.´lbf
Park/Neutral position switch adjusting bolt131309
Control shaft lever1616012
AT06Q-0E

A340H AUTOMATIC TRANSMISSIONSERVICE SPECIFICATIONS -
AT-38
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Stator shaft x Oil pump body101007
Upper valve body x Lower valve body6.46556 in.´lbf
Detent spring x Valve body101007
Transfer lower valve body x Transfer center valve body6.46556 in.´lbf
Transfer center valve body x Transfer upper valve body6.46556 in.´lbf
Transfer upper valve body x Transfer lower valve body6.46556 in.´lbf
No.4 solenoid x Valve body101007
Transfer pressure switch x Valve body6.97061 in.´lbf
Transfer oil strainer x Transfer chain rear case6.97061 in.´lbf
Transfer oil pump x Transfer oil pump cover101007
Oil pump x Transmission case2222016
Parking lock pawl bracket7.47565 in.´lbf
Transfer case x Transmission case3434525
Transfer front support x Transfer case3434525
Transfer chain front case x Transfer case3434525
Oil receiver x Transfer chain front case101007
Transfer chain front case x Transfer chain rear case3434525
Transfer oil pump x Transfer chain rear case1616012
Transfer extension housing x Transfer chain rear case3434525
Front companion flange1231,25090
Rear companion flange1231,25090
Overdrive case x Transmission case2526019
Valve body x Transmission case101007
Oil strainer case x Valve body101007
Oil strainer case x Oil strainer6.97061 in.´lbf
Transfer valve body x Transfer case101007
Transfer oil pan x Transfer case7.47565 in.´lbf
Transfer position switch3.94035 in.´lbf
Transfer control shaft lever1616012
Speedometer drive gear16160
12


Transfer oil cooler tube3434525
Transmission fluid temperature sensor1515011
Transfer fluid temperature sensor1515011
Transmission oil pan x Transmission case7.47565 in.´lbf
Transmission housing 14 mm bolt
17 mm bolt34
57345
58025
42
Union2930022
Park/Neutral position switch6.97061 in.´lbf
Park/Neutral position switch adjusting bolt131309
Control shaft lever1616012
AT06Q-08

A340F AUTOMATIC TRANSMISSIONSERVICE SPECIFICATIONS -
AT-42
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Stator shaft x Oil pump body101007
Upper valve body x Lower valve body6.46556
Detent spring x Valve body101007
Parking lock pawl bracket7.47565 in.´lbf
Overdrive support x Transmission case2526019
Oil pump x Transmission case2222016
Valve body x Transmisson case101007
Oil strainer x Valve body101007
Solenoid x Valve body101007
Oil pan x Transmission case7.47565 in.´lbf
Transmission housing 14 mm bolt
17 mm bolt34
57345
58025
42
Union2930022
Vehicle speed sensor1616012
Park/Neutral position switch6.97061 in.´lbf
Park/Neutral position switch adjusting bolt131309
Control shaft lever1616012
Transmission case x Transfer adaptor3434525
Transfer adaptor x Transfer3637027
Dynamic damper3738027
AT06Q-0D

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONOPERATION -
AT-8
4. 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 conditions as sensed by various sen-
sors located throughout the vehicle and in response to the engine's running condition.
In addition, the ECM control reduces vehicle squat when the shift lever is moved from N to D.
The electronic control system is also equipped with a self diagnosis system which diagnoses malfunc-
tions for the vehicle to continue functioning when a malfunction occurs.
CONSTRUCTION
The electronic control system can be broadly divided onto three groups; the sensors, ECM and actua-
tors.

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONCOMPONENT PARTS REMOVAL -
AT-1 1
TRANSMISSION DISASSEMBLY
1. REMOVE CONTROL SHAFT LEVER
2. REMOVE PARK/NEUTRAL POSITION SWITCH
(a) Unstake the lock washer.
(b) Remove the nut and bolt.
(c) Remove the park/neutral position switch.
3. REMOVE OIL TEMPERATURE SENSOR
(a) Remove the oil temperature sensor.
(b) Remove the O-ring from the sensor.
4. REMOVE UNIONS
(a) Remove the 2 unions.
(b) Remove the O-ring from both unions.
AT0DC-05

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONCOMPONENT PARTS REMOVAL -
AT-12
5. REMOVE NO.1 VEHICLE SPEED SENSOR
(a) Remove the No.1 vehicle speed sensor.
(b) Remove the O-ring from the sensor.
6. REMOVE NO.2 VEHICLE SPEED SENSOR
(a) Remove the No.2 vehicle speed sensor.
(b) Remove the O-ring from the sensor.
7. REMOVE O/D DIRECT CLUTCH SPEED SENSOR
(a) Remove the O/D direct clutch speed sensor.
(b) Remove the O-ring from the sensor.
8. REMOVE TRANSMISSION HOUSING
(a) Remove the 6 bolts.
(b) Remove the transmission housing.
9. REMOVE TRANSMISSION OUTPUT FLANGE
(a) Using a hammer and a chisel, loosen the staked part of
the nut.
HINT: Shift the manual valve lever to the P position.

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONCOMPONENT PARTS REMOVAL -
AT-13
(b) Using SST, remove the nut.
SST 09060-20100
(c) Remove the output flange and 2 washers.
(d) Remove the oil seal from the output flange.
10. REMOVE EXTENSION HOUSING
(a) Remove the 6 bolts.
(b) Using a brass bar and a hammer, remove the extension
housing.
11. REMOVE SPEEDOMETER DRIVE GEAR AND SEN-
SOR ROTOR
Remove the speedometer drive gear and sensor rotor
from the output shaft.

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONCOMPONENT PARTS INSTALLATION -
AT-107
39. REMOVE TRANSMISSION CASE FROM OVERHAUL
ATTACHMENT
40. INSTALL TRANSMISSION HOUSING
(a) Clean the threads of the bolts and case with white gaso-
line.
(b) Apply seal packing or equivalent to the 6 bolts.
Seal packing:
Part No.08833-00070, THREE BOND 1324 or equiva-
lent
(c) Install and torque the 6 bolts.
Torque:
14 mm bolt: 34 N´m (345 kgf´cm, 25 ft´lbf)
17 mm bolt: 57 N´m (580 kgf´cm, 42 ft´lbf)
41. INSTALL O/D DIRECT CLUTCH SPEED SENSOR
(a) Coat a new O-ring with ATF and install it to the speed sen-
sor.
(b) Install the speed sensor.
(c) Install and torque the bolts.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
42. INSTALL NO.2 VEHICLE SPEED SENSOR
(a) Coat a new O-ring with ATF and install it to the speed sen-
sor.
(b) Install the speed sensor.
(c) Install and torque the bolts.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
43. INSTALL NO.1 VEHICLE SPEED SENSOR
(a) Coat a new O-ring with ATF and install it to the No.1 ve-
hicle speed sensor.
(b) Install the No.1 vehicle speed sensor.
(c) Install and torque the bolt.
Torque: 16 N´m (160 kgf´cm, 12 ft´lbf)

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONCOMPONENT PARTS INSTALLATION -
AT-108
44. INSTALL UNIONS
(a) Coat 2 new O-rings with ATF and install them to each
union.
(b) Install each union.
Torque: 29 N´m (300 kgf´cm, 22 ft´lbf)
45. INSTALL OIL TEMPERATURE SENSOR
(a) Coat a new O-ring with ATF and install it to the oil temp.
sensor.
(b) Install the oil temp. sensor.
Torque: 29 N´m (300 kgf´cm, 22 ft´lbf)
46. INSTALL PARK/NEUTRAL POSITION SWITCH
(a) Using the control shaft lever, fully turn the manual lever
shaft back and return 2 notches. It is now in neutral.
(b) Insert the park/neutral position switch onto the manual
valve lever shaft and temporarily tighten the adjusting
bolt.
(c) Install the grommet and a new lock washer. Install and
torque the nut.
Torque: 7 N´m (70 kgf´cm, 61 in.´lbf)
(d) Clean the threads of the adjusting bolt and case with
white gasoline.
(e) Apply seal packing or equivalent to the adjusting bolt.
Seal packing:
Part No.08833-00070, THREE BOND 1324 or equiva-
lent
(f) Align the neutral basic line and the switch groove, and
tighten the adjusting bolt.
Torque: 13 N´m (130 kgf´cm, 9 ft´lbf)

A340E(Others) AUTOMATIC TRANSMISSIONOPERATION -
AT-9
4. ELECTRONIC CONTROL SYSTEM
The electronic control system, which controls the shift points and the operation of the lock-up clutch,
is composed of the following 3 parts:
1. Sensors
These sensors sense the vehicle speed, throttle opening and other conditions and send these data to
the ECM in the form of electrical signals.
2. ECM
The ECM determines the shift and lock-up timing based upon the signals from sensors, and controls
the solenoid valves of the hydraulic control unit accordingly.
3. Actuators
These are 3 solenoid valves that control hydraulic pressure acting on the hydraulic valves to control
shifting and lock-up timing.