2004 ISUZU TF SERIES switch

DIAGNOSIS (JR405E) 7A2-9
DIAGNOSIS WITH TECH 2
In this JR405E transmission, troubleshooting can be performed for electrical faults using the Tech 2 scan tool.
If the "CHECK TRANS" lamp blinks, or if an electrical fault in the transmission may probably exit, check trouble
codes using the Tech 2 scan tool.
In the diagnostic procedures described in this manual, first repair the faulty positions indicated by trouble code in
order of numbers and then perform troubleshooting for the faulty positions that are not indicated by trouble code.
For correct troubleshooting, it is necessary to first repair the trouble codes of lower order numbers, then to repair
the trouble codes of higher order numbers in sequence.

If no codes are set:

Refer to F1: Data Display and identify the electrical faults that are not indicated by trouble code.

Refer to "SYMPTOM DIAGNOSIS".

If codes are set:
1. Record all trouble codes displayed by Tech 2 and check id the codes are intermittent.
2. Clear the codes.
3. Drive the vehicle for a test to reproduce the faulty status.
4. Check trouble codes again using the Tech 2.
5. If no codes is displayed by test driving, the fault is intermittent. In this case, refer to "INTERMITTENT
DIAGNOSIS".
6. If a code is present, refer to DTC Chart for diagnosis.
7. Check trouble codes again using the Tech 2.





TECH 2 CONNECTION
Tech 2 scan tool is used to electrically diagnose the automatic
transmission system and to check the system. The Tech 2
enhances the diagnosis efficiency though all the
troubleshooting can be done without the Tech 2.
1. Configuration of Tech 2

Tech 2 scan tool kit (No. 7000086), Tech 2 scan tool
(No. 7000057) and DLC cable (No. 3000095).

SAE 16/19 adapter (No. 3000098) (1), RS232 loop back
connector (No. 3000112) (2) and PCMCIA card (No.
3000117) (3).




2. Tech 2 Connection

Check the key switch is turn OFF.

Insert the PCMCIA card (1) into the Tech 2 (4).

Connect the SAE 16/19 adapter (2) to the DLC cable (3).

Connect the DLC cable (3) to the Tech 2 (4).

Connect the SAE 16/19 adapter (2) to the data link
connector of the vehicle.

Turn the key switch of the vehicle ON and press the
"PWR" key of the Tech 2.

Check the display of the Tech 2.

DIAGNOSIS (JR405E) 7A2-21
SERVICE PROGRAMMING SYSTEM (SPS)
The procedure to program the control unit by using Service Programming System (SPS) software contained in TIS
2000 is explained in steps below.

Important: Perform the following checks before attempting to program the control unit:







The Tech 2 PCMCIA card is programmed with the latest software release.







The latest release of TIS2000 is located on the PC.







The vehicle battery is fully charged.







The control unit to be programmed is connected to the vehicle.

1. Preparations of TIS 2000
1. Connect Tech 2 to P/C.
2. Check to see if Hardware Key is plugged into Port.
3. Activate TIS 2000 by P/C.
4. On the activating screen of TIS2000, choose "Service Programming System"



5. On the screen of "Diagnostic Tester and Processing Program Selection", choose the one that will comply with
the following.

Diagnostic Tech2 in use

New programming by the existing module or new programming by the replaced/new module.

Fixing position of the control unit.
6. Upon completion of the selection, push the button of "Next".


2. Demand of Data
1. Connect Tech-2 to the vehicle. When activated by 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. Where 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 anew data from the control unit,
choose either of them.

7A2-22 DIAGNOSIS (JR405E)


6. If you select “continue”, you have to select “Model Year”, “Vehicle Type”.
7. After that, 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 ECM and TCM at the same
time. With 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. Select “Transmission” in the “System Type” selection.
4. When a lack of data is asked from among the following menu, enter accordingly.
Select following Menu

Model Year

Model

Engine type

Destination code (vehicles for general export)*1

* 1: How to read the destination code:
Destination code can be read from service ID Plate affixed on vehicle, while on service ID Plate the destination
code is described at the right-hand edge of Body Type line. In the figure, the destination code can be read as "RR3"
for Australia.

DIAGNOSIS (JR405E) 7A2-23


4. After choosing the data, click the "Next" button.
5. When 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 new software
onto Tech-2.
6. "Data Transfer" comes on display. The progress of downloading will be displayed on the screen in the form of
bar graph.
7. Upon finishing the data transfer, turn off the power of Tech-2, removing from P/C.


4. Programming of TCM
1. Check to see if batteries are fully charged, while ABS connectors shall be removed from the vehicle.
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 "F1: Service Programming System" on the main screen and then choose "F1: Programming ECU".
7. While data is being transferred, "Programming in Progress" will be displayed on the Tech-2 screen.
8. Upon finishing the data transfer, Tech-2 will display "Reprogramming was Successful". Push the "Exit" button
to bring program to completion.
9. Following "Procedure 2: Demand of Data", try over again "Information Obtaining" and check to confirm if the
data has been correctly re-loaded.
10. Upon finishing confirmation, turn off the ignition of the vehicle and then turn off the power of Tech-2,
removing from the vehicle.

DIAGNOSIS (JR405E) 7A2-31
CONNECTOR LIST
TCM
No. Connector face No. Connector face
B-23
Green
Meter-A B-73

SilverWeld splice 3 (Earth)
B-24
Green
Meter-B C-2
SilverEngine room-RH ground
B-50
White
Power/3rd start switch C-44
WhiteStop lamp switch
B-54
White
J/B I2 C-56
(4JH1-TC)
ECM-A
B-56
White
J/B I4 C-57
(4JH1-TC)
ECM-B
B-58
Black
Check connector C-94
(6VE1)
(4JH1-TC)
Gray TCM
B-62
White
Ignition switch (IGSUB : G1) C-95
(6VE1)
(4JH1-TC)
WhiteTCM
B-63
White
Ignition switch (IGSUB : G2) C-107
WhiteJ/B E2
B-64
Silver
Weld splice 1 (Illumination) C-109
SilverBody-LH ; ground
B-68
(4JH1TC,
6VE1)
White Immobilizer C/U E-10

SilverEngine; ground

7A2-32 DIAGNOSIS (JR405E)

No. Connector face No. Connector face
E-30
(4JH1-TC)
Gray A/T speed sensor H-23
(6VE1)
(4JH1-TC)
WhiteEngine ~ Engine room B
E-31
(4JH1-TC)
Gray Turbine sensor P-1
SilverBattery (+)
E-44
Gray
Vehicle speed sensor P-2
SilverRelay & Fuse box
E-51
(4JH1-TC)
Black Inhibiter switch P-5
SilverBattery (-)
E-54
(4JH1-TC)
Black A/T term ASM P-6
SilverBody earth (Ground)
H-4
(6VE1)
(4JH1-TC)
White Engine ~ Engine room P-10
SilverEngine ground
H-6
White
Engine room ~ INST R-15
Black2-4 WD control unit
H-7
White
Engine room ~ INST


H-18
(RHD)
White Engine room ~ INST


H-22
(6VE1)
(4JH1-TC)
White Engine ~ Engine room C

DIAGNOSIS (JR405E) 7A2-33
DIAGNOSIS TROUBLE CODE TABLE

Flash Code
(P-Code)

CHECK TRANS Flash Pattern

Description
CHECK
TRANS
Warning

11 (P0722) Vehicle Speed Sensor No Signal ON


12 (-) Normal -


13 (P0727) ON

Engine Revolution Sensor No
Signal

14 (P0717) Turbine Speed Sensor No Signal ON


15 (P0710) ATF Temperature Sensor FailureOFF


16 (P0560) System Voltage Failure ON


17 (P0705) Inhibitor Switch Failure ON


22 (P1120) Throttle Signal Failure ON


25 (P1875) GND Return Circuit Failure ON


26 (P1853) ON

Low & Reverse Brake Pressure
Switch Failure

27 (P1858) 2-4 Brake Pressure Switch FailureON


28 (P1863) ON

High Clutch Pressure Switch
Failure

31 (P0753) ON

Low & Reverse Brake Duty
Solenoid Failure

32 (P0758) 2-4BrakeDutySolenoidFailure ON


33 (P0763) ON
High Clutch Duty Solenoid Failure

DIAGNOSIS (JR405E) 7A2-35
FAIL-SAFEFUNCTION
Fail-Safe Condition
Flash Code
(P-Code)

Description
CHECK
TRANS
Warning

Gear Shift
Solenoid
Line
Pressure
Solenoid

Lock-up

Remark
11
(P0722)
Vehicle peed Sensor No
Signal ON 3rdFix All Stop - Inhibited
13
(P0727)
Engine Revolution Sensor
No Signal ON - - - Inhibited
14
(P0717)
Turbine Speed Sensor No
Signal ON 3rdFix All Stop - Inhibited
15
(P0710)
ATF Temperature Sensor
Failure OFF 3,2,L - - Inhibited*1
16
(P0560)
System Voltage Failure ON 3rdFix All Stop - Inhibited*2
17
(P0705)
Inhibitor Switch Failure ON 3rdFix All Stop - Inhibited
22
(P1120)
Throttle Signal Failure ON 3rdFix All Stop - Inhibited
25
(P1875)
GND Return Circuit
Failure ON 3rdFix All Stop - Inhibited*2
26
(P1853)
Low & Reverse Brake
Pressure Switch Failure ON No Fail-safe Function
27
(P1858)
2-4 Brake Pressure
Switch Failure ON No Fail-safe Function
28
(P1863)
High Clutch Pressure
Switch Failure ON No Fail-safe Function
31
(P0753)
Low & Reverse Brake
Duty Solenoid Failure ON 3rdFix All Stop - Inhibited
32
(P0758)
2-4 Brake Duty Solenoid
Failure ON 3rdFix All Stop - Inhibited
33
(P0763)
High Clutch Duty Solenoid
Failure ON 3rdFix All Stop - Inhibited
34
(P0768)
Low Clutch Duty Solenoid
Failure ON 3rdFix All Stop - Inhibited
35
(P0748)
Line Pressure Solenoid
Failure ON - - Stop -
36
(P1860)
Lock-up Duty Solenoid
Failure ON - - - Inhibited
41
(P0731)
1stGearRatioError ON No Fail-safe Function
42
(P0732)
2ndGearRatioError ON No Fail-safe Function
43
(P0733)
3rdGearRatioError ON No Fail-safe Function
44
(P0734)
4thGearRatioError ON No Fail-safe Function
51
(P1750)
Low & Reverse Brake
Fail-safe Valve Failure ON 3rdFix All Stop - Inhibited
52
(P1755)
2-4 Brake Fail-safe Valve
Failure ON 3rdFix All Stop - Inhibited
-
(P0602)
ECU Programming Error ON No Fail-safe Function
*1: When the engine speed is more than 470 rpm for 10 minuets, the lock-up and gear shift to 4th (over-drive) are
allowed.
*2: In case of fail-safe valve failure, gear shift to 4th (over-drive) is inhibited.