Page 144 of 2543

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
Page 148 of 2543
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
Page 149 of 2543

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONDESCRIPTION -
AT-1
DESCRIPTION
GENERAL DESCRIPTION
The A340E automatic transmission is a 4-Speed Electronically Controlled Transmission with an intelli-
gent control. The A340E automatic transmission have the following features.
When shifting, the clutch hydraulic pressure in the transmission is controlled by the ECM to reduce
transmission shift shock.to reduce transmission shift shock.
A new type of ATF (ATF Type T-II) is used which provides improved shifting characteristics and
prevents deterioration in the ATF over time.
HINT: The A340E automatic transmission use ATF Type T-II or equivalent.
A super flow torque converter clutch is used to improve transmission efficiency.
The A340E automatic transmission is mainly composed of a torque converter clutch with lock-up
clutch, a 4-speed planetary gear unit, a hydraulic control system and an electronic control system.
To minimize the possibility of incorrect operation of the automatic transmission, a shift lock mechanism
has also been added.
AT0D4-06
Page 150 of 2543
A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONDESCRIPTION -
AT-2
Transmission Specifications
Type of TransmissonA340E
Type of Engine2JZ-GTE
Torque Converter Clutch Stall Torque Ratio2.000 : 1
Lock-up MechanismEquipped
Gear Ratio 1st Gear
2nd Gear
3rd Gear
O/D Gear
Reverse Gear2.804
1.531
1.000
0.705
2.393
Number of Discs and Plates (Disc and Plate)
O/D Direct Clutch (C
0)
Forward Clutch (C
1)
Direct Clutch (C
2)
No.2 Brake (B
2)
1st and Reverse Brake (B
3)
O/D Brake (B
0)
2 / 2
7 / 7
5 / 5
5 / 5
7 / 7
5 / 5
Sedond Coast Brake Band Width mm (in.)40 (1.57)
ATF TypeATF Type T-II or equivalent
Capacity Liter (US qts, Imp.qts) Total
Drain and Refill8.2 (8.7 , 7.2)
1.9 (2.0 , 1.7)
Page 155 of 2543

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONOPERATION -
AT-7
3. HYDRAULIC CONTROL SYSTEM
The hydraulic control system is composed of the oil pump, the valve body, the solenoid valves, the accu-
mulators, the clutches and brakes, as well as the fluid passages which connect all of these components.
Based on the hydraulic pressure created by the oil pump, the hydraulic control system governs the hy-
draulic pressure acting on the torque converter clutch, clutches and brakes in accordance with the ve-
hicle driving conditions.
There are 5 solenoid valves on the valve body.
The No.1 and No.2 solenoid valves are turned on and off by signals from the ECM to control the shift
valves, and change the gear shift position.
The No.3 solenoid valve is operated by signals from the ECM to engage or disengage the lock-up
clutch of the torque converter clutch.
The No.4 solenoid valve is operated by signals from the ECM to control the engagement speed and
reduce gear shift shock.
The No.5 solenoid valve is operated by signals from the ECM to regulate the line pressure to throttle
pressure.
Page 176 of 2543
A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONOIL PUMP -
AT-28
OIL PUMP
COMPONENTS
OIL PUMP DISASSEMBLY
1. USE TORQUE CONVERTER CLUTCH AS WORK
STAND
Place the oil pump body on the torque converter clutch.
2. REMOVE OIL SEAL RINGS
Remove the 2 oil seal rings.
AT0DE-02
AT0DF-05
Page 177 of 2543

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONOIL PUMP -
AT-29
3. REMOVE STATOR SHAFT
(a) Remove the 13 bolts, and then remove the stator shaft
from the oil pump body.
(b) Remove the oil pump body from the torque converter
clutch.
4. CHECK BODY CLEARANCE OF DRIVEN GEAR
Push the driven gear to one side of the body.
Using a feeler gauge, measure the clearance.
Standard body clearance:
0.07-0.15 mm (0.0028-0.0059 in.)
Maximum body clearance:
0.3 mm (0.012 in.)
If the body clearance is greater than the maximum, re-
place the drive gear, driven gear or pump body.
5. CHECK TIP CLEARANCE OF DRIVEN GEAR
Measure between the driven gear teeth and the crescet-
shaped part of the pump body.
Standard tip clearance:
0.11-0.14 mm (0.0043-0.0055 in.)
Maximum tip clearance:
0.3 mm (0.012 in.)
If the tip clearance is greater than the maximum, replace
the drive gear, driven gear or pump body.
6. CHECK SIDE CLEARANCE OF BOTH GEARS
Using a steel straight edge and a feeler gauge, measure
the side clearance of both gears.
Standard side clearance:
0.02-0.05 mm (0.0008-0.0020 in.)
Maximum side clearance:
0.1 mm (0.004 in.)
If the side clearance is greater than the maximum, replace
the drive gear, driven gear or pump body.
7. REMOVE OIL PUMP DRIVE GEAR AND DRIVEN GEAR
Page 178 of 2543

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONOIL PUMP -
AT-30
8. REMOVE OIL SEAL
(a) Pry off the oil seal with a screwdriver.
(b) Using SST, install a new oil seal.
The oil seal end should be flush with the outer edge of the
pump body.
SST 09350-30020 (09351-32140)
(c) Coat the oil seal lip with MP grease.
OIL PUMP BUSHING CHECK
1. CHECK OIL PUMP BODY BUSHING
Using a dial indicator, measure the inside diameter of the
oil pump body bushing.
Maximum inside diameter:
38.19 mm (1.5035 in.)
If the inside diameter is greater than the maximum, re-
place the oil pump body.
2. CHECK STATOR SHAFT BUSHING
Using a dial indicator, measure the inside diameter of the
stator shaft bushing.
Maximum inside diameter (Front):
21.58 mm (0.8496 in.)
Maximum inside diameter (Rear):
27.08 mm (1.0661 in.)
If the inside diameter is greater than maximum, replace
the stator shaft.
OIL PUMP ASSEMBLY
1. INSTALL DRIVEN GEAR AND DRIVE GEAR TO OIL
PUMP BODY
(a) Place the oil pump body on the torque converter clutch.
(b) Coat the driven gear and drive gear with ATF.
(c) Install the driven gear and drive gear.
AT0DG-03
AT0DH-05