2007 ISUZU KB P190 ignition

7A2-24 TRANSMISSION CONTROL SYSTEM (AW30–40LE)
TRANSMISSION DATA
Scan Tool Parameter Units Displayed Typical Data Value at Engine Idle
Operating Conditions: Engine idling/ Engine coolant temperature is between 75 to 85 °C(167 to 185 °F)/
Accelerator pedal is constant/ Neutral or Park/ Accessories OFF/ Vehicle located at sea level
Engine Coolant temperature °C/ °F 75 to 85°C (167 to 185 °F)
Engine Speed RPM 700
Vehicle Speed Km/h / MPH 0
Ignition Voltage V 13.6
Accelerator Pedal Position Signal % 0
Throttle Position % 0
Accelerator Pedal Position Signal
During Cruise Control % 0
Cruise Control
Inactive / Active Inactive
Cruise Control OD Cancel Request ON / OFF OFF
Engine W arm Up Cycle Achieved FALSE / TRUE FALSE
Transmission Shift in Progress Inactive / Active Inactive
Garage Shift Control Inactive / Active Inactive
MIL Request Command ON / OFF OFF
Transmission Check Light ON / OFF OFF
Transmission Oil Temperature Lamp ON / OFF OFF
Power Drive Lamp ON / OFF OFF
3rd Start Lamp ON / OFF OFF
Transmission Fluid Temperature
°C/ °F 70 to 80°C (158 to 176 °F)
AT Input Speed RPM 625
AT Output Speed RPM 0
Transmission Range Park / Reverse /
Neutral / Drive 4 / Drive 3 / Drive 2 / Drive 1 Park
TR Switch P
ON / OFF ON
TR Switch R ON / OFF OFF
TR Switch N ON / OFF OFF
TR Switch D ON / OFF OFF
TR Switch 3 ON / OFF OFF
TR Switch 2 ON / OFF OFF
TR Switch L ON / OFF OFF
Diagnostic Switch Open / Close Open
Brake Pedal Switch ON / OFF OFF
Power Drive Switch ON / OFF OFF
3rd Start Switch ON / OFF OFF
4 W heel Drive Low ON / OFF OFF
Shift Solenoid 1 Command ON / OFF ON
Shift Solenoid 2 Command ON / OFF OFF
TCC Solenoid Engaged / Disengaged Disengaged
Downhill Mode Inactive / Active Inactive
Active Shift Mode Normal Mode /
Power Mode /
3rd Gear Start /
Transfer 4L MODE Hot 1 / Hot 2 /
UPHILL MODE 1 /
UPHILL MODE 2 / Cruise MODE /
W arm Up MODE Normal Mode
Estimated Gear Ratio
:1 7.97 : 1

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ISUZU KB P190 2007

TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-31
2.Demand of Data
1. Connect Tech 2 to the vehicle. W hen activated b
y
turning on the power of Tech 2, push the "Enter"
switch.
2. Turn on the ignition switch (without starting the
engine)
3. In the main menu of Diagnostic Tester, push "F1:
Service Programming System (SPS)".
4. Push “F0: Request Info” of Tech 2.

5. W here vehicle data has been already saved in
Tech 2, the existing data come on display. In this
instance, as Tech 2 starts asking whether to keep
the data or to continue obtaining a new data from
the control unit, choose either of them.





6. If you select “continue”, you have to select “Model
Year”, “Vehicle Type”, “Controller Type (Engine)”.
7.
After that. then push button and turn Ignition switch
tuned on, off, on following Tech 2 display. Tech 2
will read information from controller after this
procedure.
8. During obtaining information, Tech 2 is receiving
information from the control unit chosen. In
replacing the control unit, please be sure to
undertake “Obtaining Information” from the ne
w
unit. W ith VIN not being programmed into the new
control unit at the time of shipment, "obtaining
information" is not complete (because the vehicle
model, engine model and model year are specified
from VIN). For the procedure get additional
information on vehicles, instruction will be provided
in dialog form, when TIS2000 is in operation.
9. Following instructions by Tech 2, push the “Exit”
switch of Tech 2, turn off the ignition of the vehicle
and turn off the power of Tech 2, thereby removing
from the vehicle.

3.Data Exchange
1. Connect Tech 2 to P/C, turn on the power and
click the “Next” button of P/C.
2. Check VIN of the vehicle and choose “Next”.
3. W hen a lack of data is asked from among the
following menu, enter accordingly.
Select following Menu
• Model Year
• Model
• Engine type
• Transmission type
• Destination code (vehicles for general export)*1
• Immobiliser
* 1: How to read the destination code
"Destination code can be read from ID Plate affixed on
vehicles, while on VIN plate the destination code is
described at the right-hand edge of Body Type line. In
Fig.-3, the destination code can be read as “EK4”
(Europe).



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ISUZU KB P190 2007

7A2-32 TRANSMISSION CONTROL SYSTEM (AW30–40LE)



4. After choosing the data, click the “Next” button.
5. W hen all the necessary information is entered, the
“details” of software within the database that match
the entered data will appear for confirmation. Click
the “Program” switch and then download the ne
w
software onto Tech 2.
6. “Data Transfer” comes on display. The progress o
f
downloading will be displayed on the screen in the
form of bar graph.
7. Upon finishing the data transfer, turn off the powe
r
of Tech-2, removing from P/C.


4. Programming of TCM 1. Check to see if batteries are fully charged.
2. Connect Tech 2 to Vehicle Diagnostic Connectors.
3. Turn on the power of Tech 2 and the title screen
comes on display.
4. Turn on the ignition (without allowing the engine to
start)
5. On the title screen of Tech 2, push the "Enter"
button.
6. Choose “F: Service Programming System” on the
main screen and then choose “F1: Programming”.
7. W hile data is being transferred, “Downloading” will
be displayed on the Tech 2 screen.
8. Upon finishing the data transfer, Tech 2 will displa
y
“Reprogramming Successful”. Push the “Exit”
button to bring program to completion.

9. Following “Procedure 2: Demand of Data”, try ove
r
again "Information Obtaining" and check to confirm
if the data has been correctly re-loaded.
10. Upon finishing confirmation, turn off the ignition o
f
the vehicle and then turn off the power of Tech 2,
removing from the vehicle.



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ISUZU KB P190 2007

TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-35
Clear DTC
NOTE: If you clear the DTC (Diagnostic Trouble
Codes) you will not be able to read any codes recorded
during the last occurrence.
NOTE: To use the DTC again to identify a problem, you
will need to reproduce the fault or the problem. This
may require a new test drive or just turning the ignition
on (this depends on the nature of the fault).
1. IF you have a Tech 2:
1. Connect the Tech 2 and perform the Tech 2
Operating.
2. Push “F1: Clear DTC Information” in the
Application Menu and answer “Yes” to the
question “Do you want to clear DTC's?”
a. W hen a malfunction still exists and the Tech 2 displays “AW 30-40 CODES NOT
CLEARED”. This means that the problem is
still there or that the recovery was not done.
Please go to DTC Check.
b. W hen a malfunction has been repaired and the recovery is done the Tech 2 displays
“AW 30-40LE CODES CLEARED”.
2. W hen you have no Tech 2, the storaged trouble
codes can be cleared by shorting the terminals
No.11 and No.4 or 5 (ground) of data link connecto
r
with a lead wire for 1 ∼ 6 seconds.
DTC Check
1. Diagnostic Trouble Codes (DTC) have been
identified by Tech 2.
2. You have written the list of the DTCs. The order o
f
the malfunctions has no meanings for this TCM.
Usually only one or two malfunctions should be set
for a given problem.
3. Check directly the DTCs you identified. The DTCs
are sorted by number. Refer to Diagnostic Trouble
Code (DTC) Identification in this section.
Self-diagnosis code (Flash code) display
• The stored trouble codes can be identified by
shorting the terminal No. 11 and No. 4 or No. 5
(ground) data link connector with a lead wire.

Indication Method:
1. Terminal No. 11 and No. 4 or No. 5 (ground) data
link connector are short circuited.
2. Turn the key switch to the ON position.
3. If no trouble code exists, the normal code (12) is
indicated repeatedly.
Data Link Connector Short Circuit






Flash Code Illumination Pattern


0.4 Sec 0.4 Sec
.
ON
OFF


3.2 Sec.
1.2 Sec.
3.2 Sec.


0.4 Sec 0.4 Sec
.
ON
OFF


3.2 Sec. 1.2 Sec. 3.2 Sec.


Self-diagnosis Start
Normal Code (12)
Trouble Code (32)


4. If several trouble codes have occurred at a time,
each code is indicated three times in numerical
order.

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7A2-36 TRANSMISSION CONTROL SYSTEM (AW30–40LE)
Trouble Code Clear Method:
If you have Tech 2:
Follow the procedure "DIAGNOSIS WITH TECH 2" in
this manual.
If you have no Tech 2:
Remove ECM (B) fuse (10A) for at least 10 seconds
with the ignition switched off.

NOTE:
If you clear the DTC you will not be able to read an
y
codes recorded during the last occurrence.
To use the DTC again to identify a problem, you will
need to reproduce the fault or the problem. This ma
y
require a new test drive or just turning the key switch on
(this depends on the nature of the fault).



12141414323232
In case DTC 14 & 32 are stored:


TCM Precaution
The TCM can be damaged by:
1. The electrostatic discharge
2. The short circuit of some terminals to voltage or to
ground.
Electrostatic Discharge Damage Description: 1. Electronic components used to control systems are often designed to carry very low voltage, and
are very susceptible to damage caused b
y
electrostatic discharge. It is possible for less than
100 volts of static electricity to cause damage to
some electronic components. By comparison, it
takes as much as 4,000 volts for a person to even
feel the zap of a static discharge.
2. There are several ways for a person to become statically charged. The most common methods o
f
charging are by friction and induction. An example
of charging by friction is a person sliding across a
car seat, in which a charge of as much as 25,000
volts can build up. Charging by induction occurs
when a person with well insulated shoes stands
near a highly charged object and momentaril
y
touches ground. Charges for the same polarity are
drained off, leaving the person highly charged with
the opposite polarity. Static charges of either type
can cause damage, therefore, it is important to use
care when handling and testing electronic
components.
NOTE: To prevent possible electrostatic discharge
damage:
1. Do not touch the TCM connector pins or soldered
components on the TCM circuit board.
2. Be sure to follow the guidelines listed below i
f
servicing any of these electronic components:
3. Do not open the replacement part package until it is time to install the part.
4. Avoid touching electrical terminals of the part.
5. Before removing the part from its package, ground
the package to a known good ground on the
vehicle.
6.
Always touch a known good ground before handling
the part. This step should be repeated before
installing the part if the part has been handled while
sliding across the seat, while sitting down from a
standing position or while walking some distance.
Information On TCM
1. The Transmission Control Module (TCM) is located
in the place of a clutch pedal and is the control
center of the electronic transmission control system.



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ISUZU KB P190 2007

7A2-38 TRANSMISSION CONTROL SYSTEM (AW30–40LE)
TCM Diagnostic Trouble Codes
The following table lists the diagnostic trouble codes supported by this vehicle application. If any DTCs not listed here
are displayed by a scan tool, the scan tool data may be faulty; notify the scan tool manufacture of any DTCs displayed
that are not included in the following table.

DTC Type
DTC No. Flash
Code DTC NAME
EURO 4Except
EURO 4
P0562 72 System Voltage Error (Low) E E
P0563 73 System Voltage Error (High) E E
P0602 63 Transmission Control Module (TCM) Programming Error E E
P0707 17 Transmission Range Sensor Circuit Open B D
P0708 17 Transmission Range Sensor Circuit Short B D
P0712 15 Transmission Oil Temperature Circuit Short
B D
P0713 16 Transmission Oil Temperature Circuit Open
B D
P0717 14 Input Speed Sensor Signal Error
B D
P0722 11 Output Speed Sensor Signal Error
B D
P0741 43 Torque Converter Clutch Stuck “OFF”
B F
P0742 53 Torque Converter Clutch Stuck “ON”
B F
P0746 45 Pressure Control Solenoid F/B Stuck
B D
P0751 41 Shift Solenoid S1 Stuck “OFF” B D
P0752 51 Shift Solenoid S1 Stuck “ON” B F
P0756 42 Shift Solenoid S2 Stuck “OFF” B F
P0757 52 Shift Solenoid S2 Stuck “ON” B F
P0962 35 Pressure Control Solenoid Circuit Open or GND Short B F
P0963 35 Pressure Control Solenoid Circuit Ignition Short B D
P0973 31 Shift Solenoid S1 Circuit GND Short B D
P0974 31 Shift Solenoid S1 Circuit Open or Ignition Short B D
P0976 32 Shift Solenoid S2 Circuit GND Short B D
P0977 32 Shift Solenoid S2 Circuit Open or Ignition Short B D
P1790 61 Transmission Control Module (TCM) ROM Checksum Error B D
P1791 62 Transmission Control Module (TCM) RAM Error B D
P2769 33 Torque Converter Clutch Circuit GND Short B D
P2770 33 Torque Converter Clutch Circuit Open or Ignition Short B D
P2773 75 Transfer 4L Switch Circuit GND Short B D
P2774 75 Transfer 4L Switch Circuit Open or Ignition Short B D
U2104 65 CAN BUS OFF
A C
U2105 67 Lost of Communication with ECM A C


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

DTC P0562 or P0563 (Flash Code 72 or 73)






RTW 77ALF001301

Circuit Description
The Transmission Control Module (TCM) monitors the
system voltage on the ignition feed terminal to the TCM.
A system voltage DTC will set whenever the voltage is
below or above a calibrated value.
Condition For Running The DTC
Ignition "ON" and either (1) or (2) conditions are met.
(1) All of the following conditions are met. • DTC U2104 is not detecting failure of notdeciding failure.
• DTC U2105 is not detecting failure or not deciding failure.
• Engine revolution signal is not detecting failure
or not deciding failure.
• The engine revolution is more than 1000rpm.
• All of the following conditions are met.
- Device Control is not operating
- Disable Normal Communication is receiving enable
- DTC Clear is not operating
(2) All of the following conditions are met. • Input revolution sensor is not detecting failure o
r
not deciding failure.
• Input revolution is more than 1000rpm.


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TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-41

• All of the following conditions are met.
- Device Control is not operating
- Disable Normal Communication Service is receiving enable
- DTC Clear is not operating
Condition For Setting The DTC
W hen the TCM detects following conditions at 20 times
continuously.
• Ignition voltage is less than 9 volts for 1 second o
r
more continuously. (DTC P0562)
• Ignition voltage is more than 18 volts for 1 second o
r
more continuously. (DTC P0563)
Action Taken When The DTC Sets
• DTC stored.
Conditions For Clearing The DTC
• The DTC can be cleared from the TCM history by
using a scan tool.
• The DTC will be cleared from history when the
vehicle has achieved 40 warm-up cycles without a
failure reported.
•
After more than 1 second has elapsed after the
ignition key has been turned “ON”, short between
No.11 and No.4 (ground) of DLC (Data Link
Connector). Then, after 1 second, but within 6
seconds, discontinue shorting.
Diagnostic Aids
•
Inspect the wiring for poor electrical connection at the
TCM. Look for possible bent, backed out, deformed
or damaged terminals. Check for weak terminal
tension as well. Also check for a chafed wire that
could short to bare metal or other wiring.
Inspect for a broken wire inside the insulation.
• W hen diagnosing for a possible intermittent short o
r
open condition, move the wiring harness while
observing test equipment for a change.

Circuit/System Testing DTC P0562 or P0563
Step Action Value(s) YES NO
1
W as the On-Board Diagnostic (OBD) System Check
performed? — Go to
Step 2 Go to OBD
System Check
2 Using the 5-8840-0285-0 DMM, measure the battery voltage at the battery.

Is the battery voltage greater than the specified value? 11.5 V Go to
Step 3 Charge battery,
then go to Step 3
3 1. Install a scan tool.
2. Select “Ignition Volts” on a scan tool.
3. Start the engine and raise the engine speed to the specified value.
4. Load the electrical system by turning on the headlights, high blower, etc.

Is the ignition voltage approximately equal to the
specified value? More than
1000 rpm
9.0-18.0 V Go to
Step 4 Go to
Starting/
Charging

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