Isuzu KB P190. Manual - part 1470

IMMOBILIZER CONTROL SYSTEM (4JK1/4JJ1/HFV6)   11A-29

DTC B0009

Description

The electrically erasable programmable read only
memory (EEPROM) memorizes immobilizer security
code and transponder key information. If the ICU
detects any transponder key is not programmed into
the ICU, this DTC will set.

Condition for Running the DTC

• The ignition switch is ON.

Condition for Setting the DTC

• The ICU detects any transponder key is not

programmed.

Action Taken When the DTC Sets

• The engine will fail to run if the fault occurs before

starting the engine.

Condition for Clearing the DTC

• A current DTC clears once ignition cycle has

occurred without the fault recurring.

• A history DTC will clear after 50 consecutive

ignition cycles, if the condition for malfunction is no
longer present.

• Use a scan tool to clear the DTC.

Circuit/ System Testing DTC B0009

Step

Action

Value(s)

Yes

No

1

Did you perform the Diagnostic System Check -
Immobilizer Controls?

—

Go to Step 2

Go to Diagnostic 

System Check - 

Immobilizer 

Controls

2

1.

Install a scan tool.

2.

Turn OFF the ignition for 30 seconds.

3.

Turn ON the ignition, with the engine OFF.

4.

Monitor the DTC Information with a scan tool.

Is DTC B0002 also set?

—

Go to DTC B0002

Go to Step 3

3

Program transponder key information into the ICU.
Refer to Resetting and Programming Guidelines in
this section.

Did you complete the programming?

—

Go to Step 4

—

4

1.

Clear the DTCs with a scan tool.

2.

Turn OFF the ignition for 30 seconds.

3.

Turn ON the ignition.

Did the DTC fail this ignition?

—

Go to Step 3

Go to Step 5

5

Observe the DTC Information with a scan tool.

Are there any DTCs that you have not diagnosed?

—

Go to DTC List

System OK

11A-30   IMMOBILIZER CONTROL SYSTEM (4JK1/4JJ1/HFV6)

DTC B0010

Description

When the ignition switch is ON, the ICU begins
authentication of the transponder key in the steering
lock through the antenna coil. Once the ICU transmits a
signal, the transponder must send back a specific
response signal.  If the ICU receives an unknown
response signal from the transponder, this DTC will set.

Condition for Running the DTC

• The ignition switch is ON.

Condition for Setting the DTC

• The ICU receives an unknown response signal

from the transponder key.

Action Taken When the DTC Sets

• The engine will not start if the fault occurs before

starting the engine.

Condition for Clearing the DTC

• A current DTC clears once ignition cycle has

occurred without the fault recurring.

• A history DTC will clear after 50 consecutive

ignition cycles, if the condition for malfunction is no
longer present.

• Use a scan tool to clear the DTC.

Diagnostic Aids

• Non-programmed transponder key sets this DTC.

Circuit/ System Testing DTC B0010

Step

Action

Value(s)

Yes

No

1

Did you perform the Diagnostic System Check -
Immobilizer Controls?

—

Go to Step 2

Go to Diagnostic 

System Check - 

Immobilizer 

Controls

2

1.

Install a scan tool.

2.

Turn OFF the ignition for 30 seconds.

3.

Turn ON the ignition, with the engine OFF.

4.

Monitor the DTC Information with a scan tool.

Is DTC B0009, B0012 or B0013 also set?

—

Go to Applicable 

DTC

Go to Step 3

3

Inspect all programmed transponder keys while
observing the Transponder Key parameter with a
scan tool.

Is there a transponder key that indicates Invalid
when ignition switch is ON?

—

Go to Step 4

Go to Diagnostic 

Aids

4

Does only specific transponder key indicate
Invalid?

—

Go to Step 5

Go to Step 7

5

Program transponder key information into the ICU.
Refer to Resetting and Programming Guidelines in
this section.

Did you find and correct the condition?

—

Go to Step 8

Go to Step 6

6

Important: Replacement transponder key must be
programmed.
Replace the transponder key that indicates Invalid
at Step 3. Refer to Resetting and Programming
Guidelines in this section.

Did you complete the replacement?

—

Go to Step 8

—

7

Important: Replacement ICU must be
programmed.
Replace the ICU.  Refer to ICU Replacement.

Did you complete the replacement?

—

Go to Step 8

—

8

1.

Clear the DTCs with a scan tool.

2.

Turn OFF the ignition for 30 seconds.

3.

Turn ON the ignition.

Did the DTC fail this ignition?

—

Go to Step 2

Go to Step 9

IMMOBILIZER CONTROL SYSTEM (4JK1/4JJ1/HFV6)   11A-31

9

Observe the DTC Information with a scan tool.

Are there any DTCs that you have not diagnosed?

—

Go to DTC List

System OK

Step

Action

Value(s)

Yes

No

11A-32   IMMOBILIZER CONTROL SYSTEM (4JK1/4JJ1/HFV6)

DTC B0012

Description

When a transponder key is replaced or added,
transponder key information must be programmed into
the ICU. If the ICU detects a default transponder key,
this DTC set.

Condition for Running the DTC

• The ignition switch is ON.

Condition for Setting the DTC

• The ICU detects a non-programmed (new)

transponder key.

Action Taken When the DTC Sets

• The engine will fail to run if the fault occurs before

starting the engine.

Condition for Clearing the DTC

• A current DTC clears once ignition cycle has

occurred without the fault recurring.

• A history DTC will clear after 50 consecutive

ignition cycles, if the condition for malfunction is no
longer present.

• Use a scan tool to clear the DTC.

Circuit/ System Testing DTC B0012

Step

Action

Value(s)

Yes

No

1

Did you perform the Diagnostic System Check -
Immobilizer Controls?

—

Go to Step 2

Go to Diagnostic 

System Check - 

Immobilizer 

Controls

2

1.

Install a scan tool.

2.

Turn OFF the ignition for 30 seconds.

3.

Turn ON the ignition, with the engine OFF.

4.

Monitor the DTC Information with a scan tool.

Does the DTC fail this ignition?

—

Go to Step 3

Go to Step 4

3

Program transponder key information into the ICU.
Refer to Resetting and Programming Guidelines in
this section.

Did you complete the programming?

—

Go to Step 4

—

4

1.

Clear the DTCs with a scan tool.

2.

Turn OFF the ignition for 30 seconds.

3.

Turn ON the ignition.

Did the DTC fail this ignition?

—

Go to Step 3

Go to Step 5

5

Observe the DTC Information with a scan tool.

Are there any DTCs that you have not diagnosed?

—

Go to DTC List

System OK