2007 ISUZU KB P190 IMMOBILISER

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ISUZU KB P190 2007  Workshop Repair Manual 6E–218 ENGINE DRIVEABILITY AND EMISSIONS
DIAGNOSTIC TROUBLE CODE (DTC) P1626 IMMOBILIZER NO SIGNAL
Condition for setting the DTC and action taken when the DTC sets 
Circuit Description
The ECM decid

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – General Information Page 6C1-1–2 
 
3.9 Serial Data Communication System ................................................................................................

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – General Information Page 6C1-1–12 
 
Battery Voltage Correction Mode 
The ECM monitors the battery voltage circuit to ensure the voltage available to the engine manageme

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – General Information Page 6C1-1–17 
 
3.9  Serial Data Communication System 
The engine control module (ECM) communicates directly with the following control units using

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – General Information Page 6C1-1–18 
 
3.12 Immobiliser System 
The vehicle incorporates an immobiliser system. After the ignition switch is turned to the ON position, and

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–21 
 
Step Action  Yes No 
7 Does Tech 2 display multiple DTCs? 
Go to Step 8 Go to the diagnostic 
table of the DTC 
displayed. Refer to  7.1 DTC

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–23 
 
• there is no Current DTC but a History DTC is stored. 
Diagnostic Table  
Checks Actions 
Preliminary 
• Perform the preliminary checks

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–26 
 
5.4  Cranks But Does Not Run 
Definition 
The engine cranks normally but does not start. 
Checks Actions 
Preliminary  • Perform the preli
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