Isuzu KB P190. Manual — part 1485

11A-42 IMMOBILIZER SYSTEM (C24SE, 4JA1-T)

Step Action Value(s)

Yes

No

9

Check the immobilizer programming functions.
• Engine control module (ECM).
If a problem is found, repair as necessary.

(Refer to "Important information on Programming")

Was the action complete?



Go to Step 10

Go to Step 11

10

Recheck the DTC on ECM.

1. Key position is “OFF” and keep the position for

more than 30 seconds.

2. Key position is “ON”.

3. Check the DTC on scan tool.

Are below DTCs stored?

P1649 (C24SE)



Go to Step 11

Go to Step 12

11

Replace the engine control module (ECM).

IMPORTANT: The replacement ECM must be
programmed the security data by scan tool.

Was the action complete?



Go to Step 12



12

Recheck the DTC on ECM.

1. Key position is “OFF” and keep the position for

more than 30 seconds.

2. Key position is “ON”.

3. Check the DTC on scan tool.

Are below DTCs stored?

P1626 (C24SE)



Go to Step 13

Go to Step 2

13

Replace the immobilizer control unit (ICU).

IMPORTANT: The replacement ICU must be
programmed the security data by scan tool.

Was the action complete?



Verify repair



IMMOBILIZER SYSTEM (C24SE, 4JA1-T) 11A-43

B0008 WRONG TRANSPONDER KEY

Step Action Value(s)

Yes

No

1

Was the "Immobilizer System Check" performed?



Go to Step 2

Go to Immobilizer

System Check

2

Check the key.

Is a key peculiar to a vehicle?



Go to Step 3

Refer to

Diagnostic Aids

3

Check the immobilizer programming functions.
• Transponder (Key).
Was a problem found?



Go to Step 4

Go to Step 5

4

Perform the immobilizer programming functions.
• Transponder (Key).
(Refer to "Important information on Programming")

Was the action complete?



Go to Step 5



5

Recheck the DTC.

1. Key position is “OFF” and keep the position for

more than 30 seconds.

2. Key position is “ON”.

3. Check the DTC on scan tool.

Is DTC B0008 stored?



Go to Step 6

Verify repair

6

Replace the transponder (Key).

IMPORTANT: The replacement transponder (key)
must be programmed the security data by scan tool.

Was the action complete?



Go to Step 7



7

Recheck the DTC.

1. Key position is “OFF” and keep the position for

more than 30 seconds.

2. Key position is “ON”.

3. Check the DTC on scan tool.

Is DTC B0008 stored?



Go to Step 8

Verify repair

8

Replace the immobilizer control unit (ICU).

IMPORTANT: The replacement ICU must be
programmed the security data by scan tool.

Was the action complete?



Verify repair



11A-44 IMMOBILIZER SYSTEM (C24SE, 4JA1-T)

B0009 NO TRANSPONDER KEY PROGRAMMED

Step Action Value(s)

Yes

No

1

Was the "Immobilizer System Check" performed?



Go to Step 2

Go to Immobilizer

System Check

2

Check the key.

Is a key peculiar to a vehicle?



Go to Step 3

Refer to

Diagnostic Aids

3

Check the immobilizer programming functions.
• Transponder (Key).
Was a problem found?



Go to Step 4

Go to Step 5

4

Perform the immobilizer programming functions.
• Transponder (Key).
(Refer to "Important information on Programming")

Was the action complete?



Go to Step 5



5

Recheck the DTC.

1. Key position is “OFF” and keep the position for

more than 30 seconds.

2. Key position is “ON”.

3. Check the DTC on scan tool.

Is DTC B0009 stored?



Go to Step 6

Verify repair

6

Replace the transponder (Key).

IMPORTANT: The replacement transponder (key)
must be programmed the security data by scan tool.

Was the action complete?



Go to Step 7



7

Recheck the DTC.

1. Key position is “OFF” and keep the position for

more than 30 seconds.

2. Key position is “ON”.

3. Check the DTC on scan tool.

Is DTC B0009 stored?



Go to Step 8

Verify repair

8

Replace the immobilizer control unit (ICU).

IMPORTANT: The replacement ICU must be
programmed the security data by scan tool.

Was the action complete?



Verify repair



IMMOBILIZER SYSTEM (C24SE, 4JA1-T) 11A-45

B0010 UNKNOWN TRANSPONDER KEY

Step Action Value(s)

Yes

No

1

Was the "Immobilizer System Check" performed?



Go to Step 2

Go to Immobilizer

System Check

2

Check the key.

Is a key peculiar to a vehicle?



Go to Step 3

Refer to

Diagnostic Aids

3

Check the immobilizer programming functions.
• Transponder (Key).
Was a problem found?



Go to Step 4

Go to Step 5

4

Perform the immobilizer programming functions.
• Transponder (Key).
(Refer to "Important information on Programming")

Was the action complete?



Go to Step 5



5

Recheck the DTC.

1. Key position is “OFF” and keep the position for

more than 30 seconds.

2. Key position is “ON”.

3. Check the DTC on scan tool.

Is DTC B0010 stored?



Go to Step 6

Verify repair

6

Replace the transponder (Key).

IMPORTANT: The replacement transponder (key)
must be programmed the security data by scan tool.

Was the action complete?



Go to Step 7



7

Recheck the DTC.

1. Key position is “OFF” and keep the position for

more than 30 seconds.

2. Key position is “ON”.

3. Check the DTC on scan tool.

Is DTC B0010 stored?



Go to Step 8

Verify repair

8

Replace the immobilizer control unit (ICU).

IMPORTANT: The replacement ICU must be
programmed the security data by scan tool.

Was the action complete?



Verify repair

