2007 ISUZU KB P190 engine

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Page 5868 of 6020

ISUZU KB P190 2007  Workshop Repair Manual IMMOBILIZER CONTROL SYSTEM (4JK1/4JJ1/HFV6)   11A-17
10Notice:
If no automatic transmission is installed,
skip to Step 11. 
1. Turn OFF the ignition. 
2. Reconnect the ECM C-56 and E-90 harness connec

Page 5870 of 6020

ISUZU KB P190 2007  Workshop Repair Manual IMMOBILIZER CONTROL SYSTEM (4JK1/4JJ1/HFV6)   11A-19
Lost Communication with The Immobilizer Control Unit (ICU)
Circuit Description 
The engine control module (ECM), transmission control 
module (TCM)

Page 5871 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 11A-20   IMMOBILIZER CONTROL SYSTEM (4JK1/4JJ1/HFV6)
91. Turn OFF the ignition. 
2. Disconnect the ICU harness connector. 
3. Inspect for an intermittent, for poor connections and for corrosion at the

Page 5872 of 6020

ISUZU KB P190 2007  Workshop Repair Manual IMMOBILIZER CONTROL SYSTEM (4JK1/4JJ1/HFV6)   11A-21
Diagnostic Trouble Code (DTC) List
DTCDTC Descriptor
B0001 Replace Electronic Control Unit (ECU) 
B0002 Immobilizer Not Programmed 
B0003 Transpond

Page 5873 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 11A-22   IMMOBILIZER CONTROL SYSTEM (4JK1/4JJ1/HFV6)
DTC B0001 
Description 
This diagnostic applies to internal microprocessor 
integrity conditions within the ICU. 
Condition for Setting the DTC •

Page 5874 of 6020

ISUZU KB P190 2007  Workshop Repair Manual IMMOBILIZER CONTROL SYSTEM (4JK1/4JJ1/HFV6)   11A-23
DTC B0002
Description 
The electrically erasable programmable read only 
memory (EEPROM) memorizes immobilizer security
code and transponder key in

Page 5875 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 11A-24   IMMOBILIZER CONTROL SYSTEM (4JK1/4JJ1/HFV6)
DTC B0003
Description 
When the ignition switch is ON, the ICU begins 
authentication of the transponder key in the steering
lock through the anten

Page 5877 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 11A-26   IMMOBILIZER CONTROL SYSTEM (4JK1/4JJ1/HFV6)
DTC B0004
Circuit Description 
An antenna coil is a part of the ICU and it is located 
around steering key lock cylinder. An antenna coil is
energi