2007 ISUZU KB P190 engine oil

IMMOBILIZER SYSTEM (C24SE, 4JA1-T) 11A-29
Diagnostic Trouble Code (DTC) list with Engine Immobilizer Unit (4JA1-T Diesel Engine)
•
••
•
Engine Immobilizer Unit
Code
(DTC) Description Detecting
Condition
B0011 TRANSPONDER KEY PROBLEM Transponder code unsuccessfully read 5 consecutive
time. (No completely read in 500ms transponder code)
B0012 W RONG TRANSPONDER KEY Immobilizer program no executed.
B0013 IMMOBILIZER NOT PROGRAMMED Processing program no executed.
B0014 NO TRANSPONDER KEY PROGRAMMED Processing to save the transponder key in the control unit
not Executed.
B0015 FREQUENCY SIGNAL Lo Lo level (less than 2.5) input during the Hi level was being
output to the communication line.
B0016 FREQUENCY SIGNAL Hi (Diesel) Hi level (more than 2.5v) input during the Lo level was
being output to the communication line.
B0023 ANTENNA COIL OPEN Antenna coil not connected.
B0024 W RONG TRANSPONDER RESPONSE Transponder response signal with challenge is wrong.
B0055 EEPROM ERROR W rite and read cannot be correctly made to and from the
EEPROM in the control unit.



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ISUZU KB P190 2007

11A-46 IMMOBILIZER SYSTEM (C24SE, 4JA1-T)
B0011 TRANSPONDER KEY PROBLEM (Only 4JA1-T Engine)
Step Action Value(s) Yes No
1
W as 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.
• All transponder (Key).
If a problem is found, repair as necessary.
(Refer to "Important information on Programming")
W as the action complete? 
Go to Step 4 Go to Step 5
4 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 B0011 stored? 
Go to Step 5 Verify repair
5 Recheck the DTC.
1. Non-OEM parts switch is "OFF" or remove the Non- OEM parts.
2. Remove the accessory and another key from key.
3. Move the vehicle to a new location.
4. Key position is “OFF” and keep the position for more than 30 seconds.
5. Key position is “ON”.
6. Check the DTC on scan tool.
Is DTC B0011 stored? 
Go to Step 6 Verify repair
6 Check the immobilizer coil (antenna) circuit.
1. Key position is “OFF”.
2. Disconnect the immobilizer control unit (ICU).
(immobilizer coil circuit : 3 pin connector)
3. Check the immobilizer coil 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.
W as a problem found? 
Go to Step 7 Go to Step 8
7 Repair or replace the immobilizer coil (antenna) circuit.
W as the action complete? 
Verify repair 
8 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 B0011 stored? 
Go to Step 9 Verify repair

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TO MODEL INDEX
ISUZU KB P190 2007

IMMOBILIZER SYSTEM (C24SE, 4JA1-T) 11A-53
B0023 IMMOBILIZER COIL CIRCUIT (ANTENNA COIL FAULT)
(Only 4JA1-T Engine)
Step Action Value(s) Yes No
1
W as the "Immobilizer System Check" performed? 
Go to Step 2 Go to Immobilizer
System Check
2 Check the immobilizer coil (antenna) circuit.
1. Key position is “OFF”.
2. Disconnect the immobilizer control unit (ICU).
(immobilizer coil circuit : 3 pin connector)
3. Check the immobilizer coil 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.
W as a problem found? 
Go to Step 3 Go to Step 4
3 Repair or replace the immobilizer coil (antenna).
W as the action complete? 
Verify repair 
4 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 B0023 stored? 
Go to Step 5 Verify repair
5 Replace the immobilizer control unit (ICU).
IMPORTANT: The replacement ICU must be
programmed the security data by scan tool.
W as the action complete? 
Verify repair 


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007