2007 ISUZU KB P190 torque

7A4–94 UNIT REPAIR (AW30–40LE)
Torque Converter
Inspection and Repair
Insert special tool in end of torque converter.
Insert a turning tool into the inner race of the one-way
clutch.
One-way clutch testing tool : 5-8840-2168-0
Insert the stopper so that it fits in the notch of the
converter hub and outer race of the one-way clutch.
241RY00018
1. One-way clutch test. The clutch should lock when turned
counterclockwise, and rotate freely and smoothly
clockwise. Less than 2.5 N ·m (0.25kgf ·m/22 Ib ·in) of
torque should be required to rotate the clutch
clockwise. If necessary, clean the converter and
retest the clutch. Replace the conver ter if the clutch
still fails the test.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

7A4–98 UNIT REPAIR (AW30–40LE)
Main Data and Specifications
General Specifications
Remaks
Model AW30–40LE
Engine 4JJ1-TC High Output (3.0L)
Type Electronic control planetary gear type
3–element 1 –stage 2 –phase type
(with lock-up mechanism)
Gear ratio 1st 2.804
2nd 1.532
3rd 1.000
4th (O/D) 0.705
Reverse 2.394
Oil used Name Exxon Mobil ATF-3309
Q'ty (l) 8.7
Torque conver ter 2300 ± 200 Stall speed (rpm)
Friction element Forward clutch C–16
Number of discs
Direct clutch C–25
OD direct clutch C–03
Second coast brake B–1 40 mm Band width or
Number of discs
Second brake B–25
Number of discs
First and reverse brake B–37
Overdrive brake B–05
Clutch One-way clutch No.1 F–12 2
Number of
sprage
One-way clutch No.2
F–22 8
OD one-way clutch F–02 4
Planetary gear Front planetary Sun gear 42
Number of teeth
Pinion gear
19
Ring gear 79
Rear planetary Sun gear 33
Pinion gear 23
Ring gear 79
O/D planetary Sun gear 33
Pinion gear 23
Ring gear 79

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

UNIT REPAIR (AW30–40LE) 7A4–99
Torque Specifications
N·m (kgf ·m/Ib ·ft)
RTW77ALF001901

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

7A4–100 UNIT REPAIR (AW30–40LE)
Torque Specifications (Cont'd)
N·m (kgf ·m/Ib ·ft)
RTW77ALF002201

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

UNIT REPAIR (AW30–40LE) 7A4–101
Torque Specifications (Cont'd)
N·m (kgf ·m/Ib ·ft)
RTW77ALF002301

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

7A4–102 UNIT REPAIR (AW30–40LE)
Special Tools
ILLUSTRATIONTOOL NO.
TOOL NAME
5-8840-2152-0 (J–37227)
Holding fixture
5-8840-0003-0 (J –3289 –20)
Holding fixture base
5-8840-2153-0(J–37228)
Oil pan seal cutter
5-8840-0195-0(J –23327 –1)
Spring compressor
5-8840-2256-0(J–9617)
Oil seal installer; oil pump
5-8840-2170-0 (J–37233)
Spring compressor; OD brake piston
5-8840-0093-0(J –29770 –A)
Oil pressure gauge
5-8840-0254-0(J–25048)
Spring compressor
5-8840-2173-0(J–37236)
Reaction sleeve puller; first and reverse brake
5-8840-2174-0(J–37237)
Piston puller; first and reverse brake
5-8840-2169-0 (J –37232 –2)
Oil seal installer;
manual valve shaft seal installer & remover
5-8840-2168-0(J–35467)
Onennway clutch
testing tool; torque converter
ILLUSTRATION
TOOL NO.
TOOL NAME

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

CONSTRUCTION AND FUNCTION 7A1-1

SECTION 7A1
CONSTRUCTION AND FUNCTION (JR405E)
TABLE OF CONTENTS
PAGE
Description ................................................................................................................... ...7A1- 3
Construction ...............................................................................................................7A1 - 3
Main Data and Specification .....................................................................................7A1- 4
Number Plate Location ..............................................................................................7A1- 5
Electronic Control Components Location ...............................................................7A1- 6
Transmission Control Module (TCM) Peripheral Circuit .........................................7A1- 7
Structure and Function of Component .........................................................................7A1- 8
Torque Converter (with Lock-up Function) .............................................................7A1- 8
Oil Pump .....................................................................................................................7 A1- 9
Input Shaft ..................................................................................................................7 A1- 10
Output Shaft ...............................................................................................................7A1 - 10
Gear Shifting Mechanism ..........................................................................................7A1- 10
Control Valve ..............................................................................................................7A1 - 14
Oil Passage .................................................................................................................7A 1- 19
Parking Function ........................................................................................................7A1- 2 0
Inhibitor Switch ..........................................................................................................7A1- 21
Turbine Sensor ...........................................................................................................7A1- 22
Speed Sensor .............................................................................................................7A1- 22
Accelerator Pedal Position Sensor ..........................................................................7A1- 23
Engine Speed Sensor (=CKP Sensor) ......................................................................7A1- 23
Brake Switch ..............................................................................................................7A1- 24
Mode Select Switch ...................................................................................................7A1- 24
Transmission Control Module (TCM) .......................................................................7A1- 25
Control Mechanism ........................................................................................................7A1- 26
Content of Function and Control ..............................................................................7A1- 26
Control Item, Input and Output .................................................................................7A1- 29
Line Pressure Control ................................................................................................7A1- 30
Lock-up Control .........................................................................................................7A1- 3 0
Direct Electric Shift Control (DESC) .........................................................................7A1- 31

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

CONSTRUCTION AND FUNCTION 7A1-3

DESCRIPTION
CONSTRUCTION



































1 Converter Housing 6 Low Clutch 11 Oil Pump
2 Torque Converter 7 Low & Reverse Brake 12 Control Valve
3 High Clutch 8 Output Shaft 13 Low One-way Clutch
4 Reverse Clutch 9 Extension Housing 14 Parking Gear
5 2-4 Brake 10 Input Shaft

Figure 1. Construction of Automatic Transmission

The JR405E automatic transmission is electrically controlled by a microcomputer transmission control module
(TCM). There are four forward speeds and one reverse speed.
This JR405E automatic transmission employs a clutch pressure direct control system (Direct Electronic Shift
Control: DESC) using duty cycle type solenoids, which ensure high shift quality.
This transmission also has a learning function and constantly checks the time of each clutch and brake
required for the shift in order to match this time with the target value for the optimum shift.

The TCM will automatically select the most appropriate shift points and lock-up points depending on the
Accelerator pedal opening, the vehicle speed and the vehicle load.
If any trouble arises in the speed sensor, APP sensor, solenoid, etc., the fail-safe control function is activated
to keep the running performance.
Problems with the sensors or the solenoids can quickly be detected with the self diagnosis procedure
described in this manual.

The JR405E automatic transmission consists of the torque converter, oil pump, input shaft, out put shaft,
planetary gears and control valves.
The gear train consists of two planetary gear sets and three multiple plate clutches in combination with two
multiple plate brakes and a one-way clutch.
2WD
4WD

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007