display ISUZU KB P190 2007 Workshop Repair Manual

IMMOBILIZER SYSTEM (C24SE, 4JA1-T) 11A-21
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CAUTION

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Erase

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4. See programming result on display.

Programming Immobilizer Function

Caution:
1) Do not replace ICU and ECM at the same time
2) Change ICU at first or ECM and other one
change follows.

1. Select "Body" and "immobilizer".
2. Select "Programming" on Tech-2 display.
3. Check the display, then press the "Confirm" key.

LTW 3BASH000401

4. Install the "Hardware Key" on PC.
5. Connect RS232 cable to the PC and Tech2.
6. Turn on the PC, then start software "TIS 2000".
7. Select "Security Access" in the TIS 2000 screen.







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ISUZU KB P190 2007

11A-22 IMMOBILIZER SYSTEM (C24SE, 4JA1-T)
8. Select "Next" in the TIS 2000 screen and wait a
few seconds.
9. W hen programming is enabled (Approved), then
press "close" in the TIS 2000 screen.
(Finish the "TIS 2000" operation.)
10. Select "Program Immobilizer Function" on Tech-2
display.
11. The following screen shows up.

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12. Confirm the following screen shows up.
13. Input the security code, then press the soft key o
f
"Not Okay" or "Okay".
14. Select the engine type then, press "Enter" key.
15. Input a program option, by moving the cursor on
the selection, then press "Enter" key.
• Programming ICU
• Programming ECM
• Programming ICU and ECM


• Programming ICU and ECM

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Programming ICU
1. Follow Programming Immobilizer Function steps 1
through 14.
2. Input a program option, by moving the cursor on
the selection, then pres "Enter" key.

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3. Enter the security code.



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ISUZU KB P190 2007

IMMOBILIZER SYSTEM (C24SE, 4JA1-T) 11A-23
4. Input the security code, then press the soft key of
"Okay" or "Not Okay".

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5. Enter VIN.
6. Enter Mechanical key number.
7. Turn ON ignition.
8. Select an engine system.
9. See the programming result.
Tech-2 displays the result of programming as the
following.
Follow those instructions
• Selected Programming is not possible due to
wrong System Status!
• Immobilizer Not Programmed!
• Immobilizer Already Programmed!
• ECM Not Programmed!
• ECM Already Programmed!
10. Transponder key must be reprogrammed,
because all transponder information is erased.
W hen ICU is programmed. See Transponde
r
programming.

Programming ECM

1. Follow Programming Immobilizer Function steps 1
through 14.
2. Input a program option, by moving the cursor on
the selection, then pres "Enter" key.

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3. Enter the security code.
4. Input the security code, then press the soft key o
f
"Okay" or "Not Okay".

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5. Turn on the Ignition.
6. Select an Engine system.




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ISUZU KB P190 2007

11A-24 IMMOBILIZER SYSTEM (C24SE, 4JA1-T)
7. See the display of programming result.
Tech-2 displays the result of programming as the
following.
Follow those instructions
• Selected Programming is not possible due to
wrong System Status!
• Immobilizer Not Programmed!
• Immobilizer Already Programmed!
• ECM Not Programmed!
• ECM Already Programmed!
8. Transponder key must be reprogrammed,
because all transponder information is erased.
W hen ICU is programmed. See Transponde
r
programming.
Programming ICU and ECM
1. Follow Programming Immobilizer Function steps 1
through 14.
2. Input a program option, by moving the cursor on
the selection, then press "Enter" key.

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3. Enter the security code.





4. Input the security code, then press the soft key o
f
"Okay" or "Not Okay".

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5. Input the security code.
6. Enter VIN.
7. Enter Key No.
8. Select an engine system.
See programming result display and follo
w
instructions of the display.
9. Transponder key must be reprogrammed,
because all transponder information on ICU is
erased when ICU is programmed. See
Transponder programming.
10. Follow Programming ECM steps 2 through 8.
Transponder program
1. Select "Body" and "Immobilizer".
2. Select "Programming" and "Program Transponder-
Keys".
(Follow Programming Immobilizer Function steps 1
through 14.)
3. See immobilizer status on Tech-2 screen, and
enter security code. If the status does not allow the
programming, only immobilizer status is displayed.




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ISUZU KB P190 2007

IMMOBILIZER SYSTEM (C24SE, 4JA1-T) 11A-25
4. Insert Non-programmed Transponder-key and
press soft key of "Confirm".

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5. "Turn On ignition key", is displayed if the ignition is
off.
6. The transponder status is displayed if the status
does not allow the programming.
7. W hen programming starts "Programming
Transponder - key!" is displayed.
8. Turn off Ignition key.
9. Turn On Ignition key.
10. If the programming was not successful, the
transponder status is only displayed.
11. To program more illustration press soft key.

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12. See programming result.


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ISUZU KB P190 2007

11A-30 IMMOBILIZER SYSTEM (C24SE, 4JA1-T)
IMMOBILIZER SYSTEM CHECK
Step Action Value(s) Yes No
1 1. Key position is "ON," engine "OFF."
2. Observe the check engine lamp.
Note: W hen a key switch is turned ON, check engine
lamp will turn on and a check engine lamp will be
turned off after a few seconds.
Is the check engine lamp "ON"? 
Go to Step 2 Go to "No
Immobilizer
warning lamp"
2 1. Key position is "ON," engine "OFF." 2. Observe the check engine lamp.
Note: W hen a key switch is turned ON, check engine
lamp will turn on and a check engine lamp will be
turned off after a few seconds.
Is the check engine lamp "OFF"?
(Check engine lamp does not flash) 
Go to Step 3 Go to
"Immobilizer
warning lamp on steady"
3 1. Key position is "OFF."
2. Install a scan tool.
3. Key position is "ON."
4. Attempt to display immobilizer data with the scan tool.
Does the scan tool display immobilizer data? 
Go to Step 9 Go to Step 4
4 1. Key position is "OFF," disconnect the immobilizer
control unit (ICU).
2. Check the DLC (Data Link Connector) circuit for an open, short to ground, or short to voltage.
Also, check the DLC ignition feed circuit for an open or short to ground and the DLC ground
circuit for an open.
W as a problem found? 
Go to Step 5 Go to Step 6
5 Repair or replace the DLC (Data Link Connector)
circuit.
W as the action complete? 
Go to Step 3 
6 1. Check the ICU circuit for an open, short to ground,
or short to voltage. Also, check the ICU ignition
feed circuit for an open or short to ground and the
ICU ground circuit for an open.
2. If a problem is found, repair as necessary.
W as a problem found? 
Go to Step 7 Go to Step 8
7 Repair or replace the ICU ignition feed and ground
circuits.
W as the action complete? 
Go to Step 3 
8 Replace the immobilizer control unit (ICU).
IMPORTANT: The replacement ICU must be
programmed the immobilizer data by the scan tool.
W as the action complete? 
Go to Step 3 
9 Select "Display DTCs" with the scan tool.
Are any DTCs stored? 
Go to Step 10 Go to Step 13

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ISUZU KB P190 2007

IMMOBILIZER SYSTEM (C24SE, 4JA1-T) 11A-31
Step Action Value(s) Yes No
10 Review and record for scan tool Failure Records data
and DTCs.
W as the action complete? 
Go to Step 11 
11 Following the DTC is stored.
Are there DTC B0001 or B0055 stored?
Go to applicable
DTC table after
Go to Step 12 Go to
Step 12
12 Clear the DTCs by "Clear the Information "with scan
tool.
Did the DTCs Cleared? 
Go to Step 12 
13 Select "Display DTCs" with the scan tool.
Are any DTCs stored? 
Go to applicable
DTC table Go to
Step 14
14 1. Key position is "ON," engine "OFF."
2. Observe the check engine lamp.
Note: If a key switch is turned ON, check engine lamp
will turn on and a check engine lamp will be turned off
after a few seconds.
Is the check engine lamp "flash"? 
Go to Step 15 Go to Step 20
15 Check the engine control system.
If a problem is found, repair as necessary.
(Refer to section 6E: system check and DTCs)
IMPORTANT: The replacement ECM must be
programmed the immobilizer data by scan tool.
(Except 4JA1-L Engine)
W as the action complete? 
Go to Step 16 
16 Check the key.
Is a key peculiar to a vehicle? 
Go to Step 18 Go to Step 17
17 Change into a peculiar key.
IMPORTANT: If replace the key, after replace lock
cylinders, perform the following below the items.
• Replace the keys and key cylinders.
• Program the immobilizer system.
(Refer to "Important information on Programming")
W as the action complete? 
Go to Step 18 
18 Check the immobilizer programming functions.
• Immobilizer control unit (ICU).
• Engine control module (ECM).
• Transponder (Key).
If a problem is found, repair as necessary.
(Refer to "Important information on Programming")
W as the action complete? 
Go to Step 19 
19 Operate the DTCs by "Clear the Information" with
scan tool.
W as the action complete? 
Go to Step 20 
20 Attempt to start the engine.
Did the engine start? 
System OK Refer to
Diagnostic Aids


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ISUZU KB P190 2007

ANTITHEFT SYSTEM 11B-1
SECTION 11B
ANTITHEFT SYSTEM
TABLE OF CONTENTS


Service Precaution .................................................. 11B- 2
General Description ................................................ 11B- 2
Diagrams And Schematics ................................. 11B- 5 System W iring Diagrams ................................ 11B- 5
Parts Location ................................................. 11B- 6
Circuit Diagram ..............................................11B-10
Antitheft control unit (A) ...................................11B-24
Pin-outs ...........................................................11B-24
Pin-Assignment ...............................................11B-25
lmportant information on Programming..............11B-26
Tech-2 Scan Tool ...............................................11B-27 Operating Procedure .......................................11B-27
Menu ...............................................................11B-28
DTC .................................................................11B-28
Clear DTC Information ....................................11B-28
Tech-2 Data Display........................................11B-28
Actuator Test ...................................................11B-28
Programming...................................................11B-30
Tech-2 Data List ..............................................11B-35
Diagnosis............................................................11B-36 Diagnostic procedure ......................................11B-36
Clearing Diagnostic Trouble Codes ................11B-36
Verifying Vehicle Repair ..................................11B-36
Diagnostic Aids................................................11B-36
Diagnostic Trouble Code (DTC) list
For Antitheft.....................................................11B-37
Antitheft System Check ...................................11B-38
No Antitheft Lamp ...........................................11B-39
DTC13 Security code not yet programmed .....11B-40
DTC14 No remote key programmed ...............11B-41
DTC16 Door lock actuators short circuit
to ground .........................................................11B-42
DTC20 Broken wire to door lock actuators .....11B-43
DTC21 Remote key 1 with random code
out of capture range ........................................11B-44
DTC22 Remote key 2 with random code
out of capture range ........................................11B-45
DTC23 Remote key 3 with random code
out of capture range ........................................11B-46

DTC24 Remote key 4 with random code
out of capture range ........................................ 11B-47
DTC25 Remote key 5 with random code
out of capture range ........................................ 11B-48
DTC28 Input immobilizer short circuit
to ground ......................................................... 11B-49
DTC29 Broken wire to immobilizer ................. 11B-50
DTC31 Actuator driver door defect ................. 11B-51
DTC32 Actuator passenger door defect ......... 11B-52
DTC36 Broken wire to driver door................... 11B-53
DTC37 Broken wire to passenger door........... 11B-54
DTC41 Driver door Lock switch unlock
defect .............................................................. 11B-55
DTC42 Driver door Lock switch lock defect .... 11B-56
DTC43 Driver door Lock switch Super lock
defect .............................................................. 11B-57
DTC44 Passenger door Lock switch lock
defect .............................................................. 11B-58
DTC45 Passenger door Lock switch unlock
defect .............................................................. 11B-59
DTC47 Battery voltage for door lock actuators
is missing ........................................................ 11B-60
DTC50 A/D converter defect or battery
voltage less than 9 volt.................................... 11B-61
DTC51 EEPROM defect ................................. 11B-62
DTC52 EEPROM not programmed
by ISUZU ......................................................... 11B-63
DTC55 Control unit defect............................... 11B-64
DTC123 Output flasher short circuit to ground
or broken wire ................................................. 11B-65
DTC125 Output alarm horn broken wire ......... 11B-66

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11B-26 ANTITHEFT SYSTEM

lmportant information on Programming
Security code
The security code protects the antitheft control unit
against unauthorized programming and data access
from Tech-2. The security code consists of a 4 digit
code number and is programmed into the antitheft
Control Module (ACU).
New control units are not programmed with a security
code.
If the control units are replaced, the security code
entered in the transmitter (into remote key).
Must be programmed into the new control unit with
Tech-2.
The security code can only be programmed with Tech-2
once and must therefore be performed with great care.
Once programmed, the security code cannot be
overwritten. An already used antitheft can be reused in
a different car by initializing the antitheft. After that you
can program the security code again. For initializing
command you need the current security code.
If the antitheft control unit is returned, always enclosed
the security code that is allocated to that control unit. If
this is not done, we can not process the case and the
warranty will not be recognized.

Entering a code
If the Tech-2 display requests that the
• security code
• Vehicle Identification No.
• Country code (Select 213 Germany in all items)
be entered, process as follows;
To input a digit you need to use the up and down
buttons of the Tech-2. By using the numeric buttons the
according digit will be displayed at the current position
and the cursor will move to the next position.
For letters you need to use the up and down buttons of
the Tech-2. The up and down key might be used for
digits as well. By using the up and down buttons the
displayed digit or letter will be increased or decreased.
To move to the next position you need to use the move-
to-right-button.
W ith the two buttons, move-to-right and move-to-left
you can select the position of number you want to
change.
This will allow you to correct a wrong number.
After the number is completed you need to press the
Enter button to accept the number. Correction is now no
longer possible.
Use the OKAY soft key to program the number and the
NOT OKAY soft key to abort the programming.



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ANTITHEFT SYSTEM 11B-27
Tech-2 Scan Tool
Operating Procedure
The power up screen is displayed when you power up
the tester with the Isuzu systems PCMCIA card.
Follow the operating procedure below.

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