2007 ISUZU KB P190 service

TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-115
F3: Noise or Vibration Occurs During in R, D, 3, 2 or L Range
F4: Engine Brake Does Not Apply in L Range
F5: Engine Stalls Before Vehicle Stops from Running
G1: Vehicle Moves in P Range or Parking is Not Disengaged in Other Than P Range
Diagnosis Hints The same causes as in category No. “C1 - C8: Engine Race Up (Slipping)”
are suspected. When the condition of No. C1 - C8 grows worse, No. F2
results.
Checks Action
Definition:
Noise or vibration occurs in the vicinity of the transmission during running.
Diagnosis Hints Cause other than transmission is suspected. Reproduce the running
condition using a lift up, chassis dynamo, etc. to investigate the origin of the
noise and vibration.
Additional Checks • Inspect the differential gear noise.
• Inspect the propeller shaft noise.
• Inspect the tires for unbalanced or poor uniformity.
Checks
Action
Checks Action
Definition:
The engine brake does not apply, allowing the vehicle to run freely when the accelerator pedal is released at low speed in L
range.
Diagnosis Hints • Slipping of the clutch is suspected. Gear ratio error DTC might be set.
Line Pressure Checks Inspect the line pressure in forward ranges for a possible dropped pressure.
Refer to Line Pressure Test in Test Instruction section.
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Sticking shift solenoid valve. Perform function check. Refer to On- Vehicle Service section.
• Clogged hydraulic circuit
Clutch and Brake Checks Inspect the low & reverse brake for slipping.
Sensor Checks Inspect the input shaft speed (ISS) sensor and output shaft speed (OSS)
sensor for faulty operation.
Checks Action
Definition:
The engine stalls simultaneously with the vehicle when the brake pedal is stepped on to stop the vehicle during running.
Diagnosis Hints The same causes as in category No. “B5: Engine Stalls When Selector Lever
is Changed from N to R, D, 3, 2 or L Range” is suspected.
Checks Action
Definition:
Vehicle moves even though it stops on a slope and P range is selected.
Vehicle does not move even though a position other than P range is selected, and the accelerator pedal is being stepped on.
Diagnosis Hints If the vehicle moves in N range, refer to category No. “B1: Vehicle Runs in
N Range”.

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ISUZU KB P190 2007

7A2-116 TRANSMISSION CONTROL SYSTEM (JR405E)
G2: Large Creeping Force
G3: Small Creeping Force
G4: Large Noise During Idle with Vehicle Stop
Transmission Range Switch & Selector Lever
Cable Checks Inspect the transmission range switch and selector lever cable for
misadjusting or disordering. Refer to On-Vehicle Service section.
Additional Checks Inspect the parking mechanism for faulty operation. Checks Action
Checks
Action
Definition:
Vehicle accelerates in R, D, 3, 2 or L range, even though the accelerator pedal is not being stepped on.
Diagnosis Hints Too high idle speed is suspected. Inspect the engine for proper idle speed.
Checks Action
Definition:
Vehicle does not move, even though a run position is selected on a flat road during idling.
Diagnosis Hints When the creep force is small in all positions, low engine output is suspected.
If the creep is normal only in the R position, operation of the fail-safe function
due to trouble in the electrical system is suspected.
Transmission Fluid Checks Inspect the transmission fluid for the following conditions. If the transmission
fluid is extremely blacked, contaminated or smells burnt, slipping of clutch is
suspected.
• Low quantity
• Contamination
•Smell
Line Pressure Checks Inspect the line pressure in forward ranges for a possible dropped pressure.
Refer to Line Pressure Test in Test Instruction section.
Stall Speed Checks Inspect the stall speed in forward ranges. Refer to Stall Test in Test
Instruction section.
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Sticking shift solenoid valve. Perform function check. Refer to On- Vehicle Service section.
• Clogged hydraulic circuit
Torque Converter Checks Inspect the torque converter for faulty operation.
Clutch and Brake Checks Inspect the low clutch for slipping.
Additional Checks • Inspect the engine for proper outputs. Refer to appropriate inspection
chart in engine section.
• Inspect the TCM grounds for being clean, tight, and in their proper locations.
• Inspect the ground return circuit for being clean, tight, and in their proper locations.
Checks Action
Definition:
Transmission is noisy during idle in all range.

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ISUZU KB P190 2007

7A2-118 TRANSMISSION CONTROL SYSTEM (JR405E)
J1: Transmission Fluid Leaks from Breather
J2: Transmission Fluid Leaks Between Engine and Converter Housing
J3: Transmission Fluid Leaks Between Converter Housing and Transmission Case
J4: Transmission Fluid Leaks Between Transmission Case and Extension Housing
J3: Transmission Fluid Leaks from Oil Pan
J3: Transmission Fluid Leaks from Manual Shaft Oil Seal
J3: Transmission Fluid Leaks from Oil Cooler Pipe Joint
Z1: Transmission Overheat
Transmission Fluid Checks Inspect the transmission fluid for the following conditions. If the transmission
fluid is extremely blacked, contaminated or smells burnt, slipping of clutch is
suspected.
• Low quantity
• Contamination
• Smell
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Sticking TCC solenoid valve. Perform function check. Refer to On- Vehicle Service section.
• Clogged hydraulic circuit
Sensor Checks Inspect the TFT sensor. Use the Temperature vs. Resistance table to test
the TFT sensor at various temperature levels to evaluate the possibility of a
skewed sensor.
Checks
Action
Checks Action
Definition:
Transmission fluid leaks from breather.
Diagnosis Hints Transmission fluid quantity is excessively high.
Checks Action
Definition:
Transmission fluid leaks between engine and converter housing.
Transmission fluid leaks between converter housing and transmission case.
Transmission fluid leaks between transmission case and extension housing.
Transmission fluid leaks from oil pan.
Transmission fluid leaks from manual shaft oil seal.
Transmission fluid leaks from oil cooler pipe joint.
Diagnosis Hints Faulty oil seal or contact surface is suspected.
Checks Action
Definition:
Smells burnt or smoke from transmission.
Diagnosis Hints • Transmission fluid quantity is excessively high.
• Slipping of the clutch is suspected. Gear ratio error DTC might be set.
• Clogged oil cooler.
• Faulty operation of oil pump.
• Faulty torque converter clutch (TCC) piston.

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ISUZU KB P190 2007

7A2-120 TRANSMISSION CONTROL SYSTEM (JR405E)
Z7: Shift Indicator is Faulty
Z8: Transmission Fluid is Splashed During Running
Z9: Abnormal Smell
Z10: Transmission Fluid Quantity is Low or High
Z11: Abnormal Transmission Fluid Pressure
Checks Action
Definition:
Shift indicator does not change even though the selector lever is moved.
Diagnosis Hints Inspect the transmission range switch and selector lever cable for
misadjusting or disordering. Refer to On-Vehicle Service section.
Checks Action
Definition:
Transmission Fluid is splashed during running.
Diagnosis Hints Transmission fluid quantity is excessively high.
Checks Action
Definition:
Abnormal smell.
Diagnosis Hints A trouble in the transmission main unit.
Checks Action
Definition:
Transmission fluid quantity is low or high.
Diagnosis Hints • If the fluid level is high, level check might be performed at low
temperature.
• If the fluid level is low, fluid leak is suspected.
Checks Action
Definition:
Transmission fluid pressure (TFP) is low or high.
Diagnosis Hints • Faulty pressure control (PC) solenoid valve or hydraulic circuits.
• If pressure is low, faulty oil pump is suspected.

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TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-139
Repair Instructions
Transmission Controls Module (TCM) Replacement
Description
The following A - C steps provide an overview
procedure to replace and reprogram a TCM. Each A -C
steps is explained further in this section.
A. Replace the old TCM with the new TCM.
B. Program the latest software and calibrations into the
new TCM using the Service Programming System
(SPS) if released. If not released, do not perform this
and skip to Step C.
C. Program the vehicle identification number (VIN) into
the TCM.
A. Removal and Installation
Removal Procedure 1. Disconnect the negative battery cable.
2. Disconnect the TCM harness connectors (1).
3. Loosen nuts (2) and remove the TCM (3) from the bracket (4).
Installation Procedure
Follow the removal steps in the reverse order. Be sure
that the connectors are securely fastened.
B. Programming Software and Calibrations
Program the latest software/ calibrations if released.
Refer to Service Programming System (SPS)
Description and SPS (Remote Procedure) or SPS
(Pass-Thru Procedure) in this section. If not released,
do not perform this and skip to Step C.
C. Programming Vehicle Identification Number
(VIN) Notice:
If you have performed SPS in the previous
step, VIN has prgrommaned already. Programming VIN
is not necessary in this step.
1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Select Diagnostics > appropriate vehicle identification > AT JR405E > Programming >
Program VIN.
4. If you installed a new, skip to step 8. If you installed a reused TCM from another vehicle or incorrect
VIN is programmed before, the TCM might be
locked already. In order to get programming
approval, the on-screen displays a message to
user. Get programming approval from the TIS
2000 using the following procedure:
a. Connect a scan tool to the terminal that installed TIS 2000 with the latest software and
the hardware key is plugged into port.
b. Turn ON the scan tool and keep at title screen.
c. Launch the TIS application.
d. Select the Security Access at the main screen.
e. Highlight the “Tech 2" on the Diagnostic Tool Selection screen and click “Next”.
f. Click “Close” on the Security Access Enabled screen.
g. Turn OFF the scan tool.
h. Disconnect the scan tool from the terminal.
5. Install a scan tool to the vehicle.
6. Turn ON the ignition, with the engine OFF.
7. Select Diagnostics > appropriate vehicle identification > AT JR405E > Programming >
Program VIN.
8. Input 17 digits of correct VIN.
9. After complete the programming, turn OFF/ ON the ignition.
10. Select Diagnostics > Lock ECU.
11. Follow the on-screen instructions and turn OFF/ ON the ignition.
Service Programming System (SPS)
Description
The service programming system (SPS) allows a
technician to program a control module through the
data link connector (DLC). The information transfer
circuit that is used at the DLC is the same serial data
circuit used by the scan tool for retrieving DTCs,
displaying data, clearing DTCs etc. This procedure
offers the ability to install software/ calibrations
matched to a particular vehicle.
Most control modules have two types of memory. The
software/ calibrations reside in the flash memory. The
two types of memory are listed below:
1
3 42

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7A2-140 TRANSMISSION CONTROL SYSTEM (JR405E)
• Electrically Erasable Programmable Read OnlyMemory (EEPROM)
This type of memory allows selected portions of
memory to be programmed while other portions
remain unchanged.
Certain learned values reside in the EEPROM,
such as:
- The vehicle identification number (VIN)
- The software/ calibrations identification numbers
- The control module security information
• Flash Read Only Memory-Flash Memory
Flash memory has increased memory storage capacity.
During programming, all information within this type of
memory is erased, and then replaced with entirely new
information.
Service Programming Methods
The two methods of programming a TCM are listed
below:
• Remote Programming
• Pass Thru Programming
For information on programming a TCM using one of
the methods listed above, refer to Service
Programming System (SPS) (Remote Procedure) or
Service Programming System (SPS) (Pass-Thru
Procedure).
Before Programming a Control Module
Important: DO NOT program an existing TCM with the
identical software/ calibration package. This procedure
is not a short cut to correct the driveability condition.
This is an ineffective repair. An TCM should only be
programmed when the following occurs:
• When a service procedure instructs you to replace the TCM.
• An updated software/ calibrations is released.
Ensure that the following conditions are met before
programming a TCM:
• The scan tool PCMCIA card is programmed with the latest software.
• The TIS 2000 is installed with the latest software.
• The hardware key is plugged into the computer port.
• Vehicle system voltage:
- There are no charging system concerns. Allcharging system concerns must be repaired
before programming the TCM.
- The battery voltage is greater than 12 volts but less than 16 volts. The battery must be fully
charged before programming the TCM.
- A battery charger is NOT connected to the vehicles battery. Incorrect system voltage or
voltage fluctuations from a battery charger may
cause programming failure or TCM damage. - Turn OFF or disable any system that may put a
load on the vehicles battery. Turn OFF or
disable systems such as:
◊ Heating, ventilation, and air conditioning
(HVAC) systems
◊ Headlights
◊ Room lights
◊ Accessory equipment
• The ignition switch is in the proper position. The scan tool prompts you to turn ON the ignition, with
the engine OFF. DO NOT change the position of
the ignition switch during the programming
procedure unless instructed to do so.
• All tool connections are secure:
- The RS-232 cable
- The connection at the DLC
- The voltage supply circuits
• DO NOT disturb the tool harnesses while programming. If an interruption occurs during the
programming procedure, programming failure or
TCM damage may occur.
• If you are performing the Pass-Thru programming procedure using a notebook computer without the
power cord, ensure that the internal battery is fully
charged.
Service Programming System (SPS)
(Remote Procedure)
Notice: Some module will not accept SPS remote
procedure using 10MB PCMCIA card. In such case,
use 32MB PCMCIA card or SPS pass-thru procedure.
The Remote SPS method is a three-step process that
involves the following procedures:
1. Connecting the scan tool to the vehicle and obtaining the information from the TCM.
2. Connecting the scan tool to the terminal and downloading a new calibration file from the
terminal into the scan tool memory.
3. Reconnecting the scan tool to the vehicle and uploading the new calibration file into the TCM.
Performing the Remote Procedure 1. Connect a scan tool to the vehicle and obtain the TCM information using the following procedure:
Notice: Ensure the TCM is installed in the vehicle and
the battery is fully charged before programming.
a. Install a scan tool.
b. Turn ON the ignition, with the engine OFF.
c. Select Service Programming System (SPS) > Request Info.

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TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-141
d. If there is already stored in the scan tool, theexisting data is displayed on the screen. The
scan tool asks user to keep existing data “Keep
Data” or “Continue” to request new vehicle
information from the TCM. If there is no data in
the scan tool, it will immediately start vehicle
identification.
e. Select the vehicle description by following the on-screen instructions based on stamped VIN
or affixed VIN plate on the vehicle.
f. During obtaining information, the scan tool is receiving information from all modules at the
same time. But only ECM information is
displayed on the screen.
g. Turn OFF all accessories and press “Okay”.
h. Verify that the correct VIN is displayed on the scan tool. If the VIN is incorrect or no VIN,
record the correct VIN.
2. Turn OFF the ignition.
3. Turn OFF the scan tool and disconnect from the vehicle.
4. Transfer the data from the terminal to the scan tool using the following procedure:
Notice: The TIS supports service programming with
the Tech 2 scan tool only.
a. Connect the scan tool to the terminal.
b. Launch the TIS application.
c. Select the Service Programming System at the main screen.
d. Highlight the following information on the Select Diagnostic Tool and Programming Process
screen, then click “Next”.
• Select Diagnostic Tool - Tech 2
• Select Programming Process - Identify whether an existing TCM is being
reprogrammed or a TCM is being replaced
with a new one
• Select ECU Location - Vehicle
e. Verify the connections on the Preparing for Communication screen, then click “Next”.
f. Verify the VIN on the Validate Vehicle Identification Number (VIN) screen, then click
“Next”.
Notice: If the TCM is replaced to new one, VIN does
not displayed. Input correct VIN reading from stamped
VIN or affixed VIN plate on the vehicle. If the TCM from
another vehicle is installed, input correct VIN by same
way.
g. Highlight Transmission on the Select SystemType screen, then click “Next”, if on-screen
instruction displayed.
h. Complete the following information based on the service ID plate on the Validate Vehicle
Data screen until “Next” is highlighted, then
click “Next”.
• Model • Model year
• Engine type
• Model designator
• Destination code
• Transmission type
i. Verify your selection on the Summary screen.
Notice: Refer to Service Bulletin and Description
column before service programming is performed if the
bulletins are listed along with the calibration files.
Notice: Select Cancel if you receive a message stating
that the calibration selected is already the current
calibration in the TCM and reprogramming with the
same download is not allowed.
j. Click “Reprog”.
k. The Transfer Data screen will appear until the progress bar reaches 100%.
5. Close the application and return to the TIS application selection screen after the download is
completed.
6. Turn OFF the scan tool and disconnect from the terminal.
7. Transfer the data from the scan tool to the TCM using the following procedure:
a. Install a scan tool.
b. Turn ON the ignition, with the engine OFF.
c. Select Service Programming System (SPS) > Program ECU.
d. Turn OFF all accessories and press “Continue”.
e. Programming in Process will appear until the progress bar reaches 100%.
Notice: Some warning lamp may turn ON or blink while
programming the TCM since communication between
the TCM and other modules are interrupted. Clear DTC
in any module after programming.
f. Press “Continue” and exit the program after thescan tool displays “Programming Was
Successful”.
8. Turn OFF the ignition.
9. Turn OFF the scan tool and disconnect from the vehicle.
Service Programming System (SPS) (Pass-
Thru Procedure)
Pass-Thru programming allows the scan tool to remain
connected to the terminal and to the vehicle throughout
the programming process. The vehicle must be in close
proximity to the terminal while using Pass-Thru.
1. Launch the TIS application.
2. Select the Service Programming System at the main screen.
3. Highlight the following information on the Select Diagnostic Tool and Programming Process screen,
then click “Next”:
• Select Diagnostic Tool-Select Pass - Thru

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7A2-142 TRANSMISSION CONTROL SYSTEM (JR405E)
• Select Programming Process - Identifywhether as existing TCM is being
reprogrammed or an TCM is being replaced
with a new one.
• Select ECU Location - Vehicle
4. Complete all vehicle data on the Preparing for Communication/ Determine Vehicle screen until
“Next” is highlighted, then click “Next”.
5. Follow the instruction on the Preparing for Communication screen, then click “Next”.
Notice: In order to reduce the potential for signal loss,
the RS-232 cable should not be more than 25 feet long.
6. Verify the VIN on the Validate Vehicle Identification Number (VIN) screen, then click “Next”.
Notice: If the TCM is replaced to new one, VIN does
not displayed. Input correct VIN reading from stamped
VIN or affixed VIN plate on the vehicle. If the TCM from
another vehicle is installed, input correct VIN by same
way.
7. Highlight Transmission on the Select System Type screen, then click “Next”, if on-screen instruction
displayed.
8. Complete the following information based on the service ID plate on the Validate Vehicle Data
screen until “Next” is highlighted, then click “Next”.
• Model
• Model year
• Engine type
• Model designator
• Destination code
• Transmission type
9. Verify your selection on the Summary screen.
Notice: Refer to Service Bulletin and Description
column before service programming is performed if the
bulletins are listed along with the calibration files.
Notice: Select Cancel if you receive a message stating
that the calibration selected is already the current
calibration in the TCM and reprogramming with the
same download is not allowed.
10. Click “Reprog”.
11. The Transfer Data screen will appear until the progress bar reaches 100%.
Notice: Some warning lamp may turn ON or blink while
programming the TCM since communication between
the TCM and other modules are interrupted. Clear DTC
in any module after programming.
12. Close the application and return to the TIS application selection screen after the download is
completed.
13. Turn OFF the ignition.
14. Turn OFF the scan tool and disconnect from the vehicle.

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