2007 ISUZU KB P190 engine

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ISUZU KB P190 2007  Workshop Repair Manual 6E-218  Engine Control System (4JH1) 
DTC P1611 (Symptom Code A) (Flash Code 56) 
Circuit Description  
The electronically erasable programmable read onl
y 
memory (EEPROM) memorize immobilizer securi

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ISUZU KB P190 2007  Workshop Repair Manual Engine Control System (4JH1)  6E-219 
DTC P1612 (Symptom Code A) (Flash Code 56) 
Circuit Description  
The engine control module (ECM) communicates with 
the immobilizer control unit (ICU) to execute

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ISUZU KB P190 2007  Workshop Repair Manual 6E-220  Engine Control System (4JH1) 
DTC P1613 (Symptom Code A) (Flash Code 56) 
Circuit Description  
The engine control module (ECM) communicates with 
the immobilizer control unit (ICU) to execute

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ISUZU KB P190 2007  Workshop Repair Manual Engine Control System (4JH1)  6E-221 
DTC P1614 (Symptom Code A) (Flash Code 56) 
Circuit Description  
The engine control module (ECM) communicates with 
the immobilizer control unit (ICU) to execute

Page 1256 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6E-222  Engine Control System (4JH1) 
DTC P1625 (Symptom Code A) (Flash Code 76) 
Circuit Description  
The engine control module (ECM) main relay is 
energized when the ECM receives an ignition volta

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ISUZU KB P190 2007  Workshop Repair Manual Engine Control System (4JH1)  6E-223 
Step Action  Value(s) Yes No 
5  1.  Reconnect all previously disconnected relay or 
harness connector(s). 
2.  Clear the DTCs with the scan tool.  
3.  Turn OFF

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ISUZU KB P190 2007  Workshop Repair Manual 6E-224  Engine Control System (4JH1) 
DTC P1625 (Symptom Code B) (Flash Code 76) 
Circuit Description  
The engine control module (ECM) main relay is 
energized when the ECM receives an ignition volta

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ISUZU KB P190 2007  Workshop Repair Manual Engine Control System (4JH1)  6E-225 
Step Action  Value(s) Yes No 
8 Important:  Replacement ECM must be 
programmed.  
Replace the ECM. Refer to Engine Control Module 
(ECM) Replacement in this sect