2007 ISUZU KB P190 indicator

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Page 2243 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE DRIVEABILITY AND EMISSIONS 6E–73
20 A/C Request  Yes/NoOffOff This displays the air conditioner request signal. Thisshould display “On” when the air conditioner switch is 
switched on.
21

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ISUZU KB P190 2007  Workshop Repair Manual 6E–76 ENGINE DRIVEABILITY AND EMISSIONS
MISCELLANEOUS TEST
The state of each circuit can be tested by using 
miscellaneous test menus. Especially when DTC
cannot be detected, a faulty circuit can be

Page 2261 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE DRIVEABILITY AND EMISSIONS 6E–91
ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK
StepAction Value(s) Yes No
1 1. Ignition “On”, engine “Off”.  2. Check the “CHECK ENGINE” lamp (MIL). 
Does

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ISUZU KB P190 2007  Workshop Repair Manual 6E–96 ENGINE DRIVEABILITY AND EMISSIONS
CHECK ENGINE LAMP (MIL) “ON” STEADY
Circuit description
The check engine lamp should always be illuminated 
and steady for about five seconds with ignitio

Page 2283 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE DRIVEABILITY AND EMISSIONS 6E–113
ECM DIAGNOSTIC TROUBLE CODES (DTC)Ty p e  A 
•Emission related. 
• Requests illumination of the MIL (Malfunction Indicator Lamp = Check Engine Lamp) of t

Page 2287 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE DRIVEABILITY AND EMISSIONS 6E–11 7
P0351 A Ignition 1 Control Circuit  #1 or #4cylinder ignition signals are not 
detected consecutively. No fail-safe function.
Consecutive ignition signals a

Page 2378 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6E–208 ENGINE DRIVEABILITY AND EMISSIONS
DTC P0650 MALFUNCTION INDICATOR LAMP (MIL) CONTOROL CIRCUIT MALFUNCTION
Condition for setting the DTC and action taken when the DTC sets 
Circuit Description

Page 2379 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE DRIVEABILITY AND EMISSIONS 6E–209
Diagnostic Trouble Code (DTC) P0650 
Malfunction Indicator Lamp (MIL) Control Circuit Malfunction
Step Action Value(s) Yes No
1 Was the “On-Board Diagnosti