Mike's Workshop Manuals
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Nissan-Datsun
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2012
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Xterra PRO-4X, Automatic Trans
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System - DTCS P0222 To P0603
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DTC P0506: ISC System
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On Board Diagnosis Logic
On Board Diagnosis Logic
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0506 0506
Idle speed control system RPM lower than expected
The idle speed is less than the target idle speed by 100 RPM or more.
Electric throttle control actuator
Intake air leak