ISUZU KB P190 2007 Workshop Repair Manual

Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–48

Figure 7C4 – 63
Reinstall
Reinstallation of the transmission control module (TCM) is the reverse of the removal procedure, noting the following:
1 If a new TCM is installed it must be programmed, refer to TCM Programming Procedure in this Section.
2 If required, install the mounting bracket to the firewall and tighten the nuts to the correct torque specification.
TCM bracket attaching
nut torque specification ........................................7.0 Nm
3 Install the TCM onto the bracket and tighten the bolts and nuts to the correct torque specification. TCM attaching bolt and nut
torque specification ..............................................7.0 Nm
4 Lock the connector securely to the TCM by with the locking lever and the securing pin.
5 Using Tech 2, clear any TCM diagnostic trouble code (DTC) that may have set during the removal procedure, refer to 0C Tech 2.
TCM Programming Procedure
1 The transmission control module (TCM) must be programmed with the correct software/calibration. Ensure the following conditions exist before starting the TCM programming procedure:
a The battery is fully charged.
b The Tech 2 cable connection at the data link connector (DLC) is secure.
c The ignition switch is in the ON position.
2 Program the TCM using the latest software for the vehicle, refer to the following: a Current release of TIS for the latest software and
b 0C Tech 2 for TCM service programming.

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Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–49
3 If the TCM fails to program, proceed as follows:
a Ensure the TCM connection is secured.
b Ensure Tech 2 is programmed with the latest software version.
c Attempt to re-program the TCM. Replace the TCM if it still cannot be programmed properly.

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Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–50
4 Specifications
For all 4L60E hydra-matic automatic transmission specifications, refer to 7C1 Automatic transmission – 4L60E – General
Information.

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Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–51
5 Torque Wrench Specifications
For a complete listing of all torque wrench specifications for the 4L60E hydra-matic automatic transmission, refer to
7C1 Automatic transmission – 4L60E – General Information.

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Automatic Transmission – 4L60E – On-vehicle Servicing Page 7C4–52
6 Special Tools
For a complete listing of all the special tools used for servicing the 4L60E hydra-matic automatic transmission, refer to
7C1 Automatic transmission – 4L60E – General Information.

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Section 7A2 Transmission Control System .......................................................... ...... 4015 PAGE
Section 7A3 On Vehicle Service .................................................................................. 4134
Section 7A4 Unit Repair ................................................................................................ 4184
SECTION 7
TRANSMISSION
T A BLE OF CONTENTS
TRANSMISSION
AW30-40LE MODEL

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TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-1
SECTION 7A2
TRANSMISSION CONTROL SYSTEM (AW30–40LE)
TABLE OF CONTENTS

Service Precaution ................................................. 7A2-2
General Description ............................................... 7A2-2
Components Location ........................................ 7A2-3
Operating Condition ........................................... 7A2-4
Electronic Control Diagram ...............................7A2-5
Transmission Control Module (TCM) (1/2) .....7A2-6
Transmission Control Module (TCM) (2/2) .....7A2-7
TCM Point Table ................................................. 7A2-8
TCM Voltage & Resistance Check Sheet .......7A2-9
Control System Diagram ...................................7A2-11
Control and Functions ........................................ 7A2-12
Functions of Input / Output Components ........7A2-15
CAN bus systems in automatic transmission
control (AW 30-40LE) ........................................ 7A2-16
High speed CAN bus .......................................... 7A2-16
Diagnosis ................................................................ 7A2-16
Electronic Diagnosis ........................................... 7A2-16
Check Trans Indicator ........................................ 7A2-16
On-Board Diagnostic (OBD) System Check ...7A2-17
“Check Trans” Check ......................................... 7A2-17
Tech 2 Operating ................................................ 7A2-20
Snapshot Display W ith TIS2000 ................... 7A2-26
Service Programming System (SPS) ............. 7A2-30
OBD Diagnostic Management System ............7A2-33
16 - Terminal Data Link Connector (DLC) ......7A2-34
Clear DTC ............................................................ 7A2-35
DTC Check .......................................................... 7A2-35
Self-diagnosis code (Flash code) display ........7A2-35
TCM Precaution .................................................. 7A2-36
Information On TCM .......................................... 7A2-36
TCM Diagnostic Trouble Codes .......................7A2-38
Diagnostic Trouble Code (DTC) Type
Definitions ........................................................... 7A2-39
DTC P0562 or P0563 (Flash Code 72 or 73) .....7A2-40
DTC P0602 (Flash Code 63) ............................. 7A2-43
DTC P0707 or P0708 (Flash Code 17) ............. 7A2-45
DTC P0712 (Flash Code 15) ............................. 7A2-49
DTC P0713 (Flash Code 16) ............................. 7A2-52
DTC P0717 (Flash Code 14) ............................. 7A2-55
DTC P0722 (Flash Code 11) ............................. 7A2-59
DTC P0741 (Flash Code 43) ............................. 7A2-63
DTC P0742 (Flash Code 53) ............................. 7A2-67
DTC P0746 (Flash Code 45) ............................. 7A2-71
DTC P0751 (Flash Code 41)..............................7A2-74
DTC P0752 (Flash Code 51)..............................7A2-78
DTC P0756 (Flash Code 42)..............................7A2-82
DTC P0757 (Flash Code 52)..............................7A2-86
DTC P0962 or P0963 (Flash Code 35) ..............7A2-90
DTC P0973 or P0974 (Flash Code 31) ..............7A2-93
DTC P0976 or P0977 (Flash Code 32) ..............7A2-97
DTC P1790 (Flash Code 61)..............................7A2-101
DTC P1791 (Flash Code 62)..............................7A2-103
DTC P2769 or P2770 (Flash Code 33) ..............7A2-105
DTC P2773 or 2774 (Flash Code 75) ................7A2-109
DTC U2104 (Flash Code 65) .............................7A2-112
DTC U2105 (Flash Code 67) .............................7A2-116


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7A2-2 TRANSMISSION CONTROL SYSTEM (AW30–40LE)
Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE
SRS COMPONENTS OR THE SRS WIRING, REFER
TO THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN
POSSIBLE AIR BAG DEPLOYMENT, PERSONAL
INJURY, OR OTHERWISE UNNEEDED SRS SYSTEM
REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, o
r
other corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener.
When you install fasteners, use the correct
tightening sequence and specifications. Following
these instructions can help you avoid damage to
parts and systems.
General Description
The AW 30-40LE is a 4–speed fully electronically
controlled automatic transmission. It uses a
microcomputer as a control unit to judge driving
conditions including throttle opening rate and vehicle
speed, then it sets the shifting point in the optimum
timing so that best driving performance can be
achieved.
In addition, the built–in driving mode select function can
select three driving modes according to the driver's
preference:
• Normal mode –Normal shift pattern.
• 3rd Start mode –Starts in 3rd gear to reduce slippage
on mud, ice or snow.
• Power mode –Delays upshift timing when more
powerful acceleration is required.
Also, the built–in fail–safe function (“emergency mode")
assures driving performance even if the vehicle speed
sensor, throttle signal or any solenoid fails.
Further, the self–diagnostic function conducts diagnosis
in a short time when the control system fails, thus
improving serviceability.
The major features of AW 30-40LE are as follows:
•
A compact structure consisting of 2 sets of planetary
gears and flat torque converter.
• Electronic control selects the optimum driving mode according to the driving conditions.
• Electronic control maintains the optimum hydraulic
pressure for clutch, band brake as well as
transmission so that shift feeling is improved.
• W ide gear ratio and high torque rate of torque
converter provide excellent starting performance.
• Optimum Lock-up control of each driving mode can
have it both ways driving performance and fuel
economy.
• Excellent shift quality can be achieved by the torque
management control through the CAN
communication with the engine.



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TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-3
Components Location




RTW 77ALF002101

Legend (8) One-way clutch (No.2) (F-2)
(1) Overdrive direct clutch (C-0)
(9) Shift solenoid (S-1)
(2) Overdrive brake (B-0)
(10) Shift solenoid (S-2)
(3) Direct clutch (C-2)
(11) One-way clutch (No.1) (F-1)
(4) Second coast brake (B-1)
(12) Pressure control solenoid (STH)
(5) Forward clutch (C-1)
(13) Lock-up solenoid (SL)
(6) Second brake (B-2)
(14) Overdrive one-way clutch (F-0)
(7) First and reverse brake (B-3)



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7A2-4 TRANSMISSION CONTROL SYSTEM (AW30–40LE)
Operating Condition








RTW 77ALF002001

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