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Home >> Infiniti >> 2011 >> G25 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 246 (Engine Control System - DTC P0182 Through P0850) >> DTC P0506: ISC System >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2010 Infiniti G37. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If DTC P0506 is displayed with other DTC, first perform the trouble diagnosis for the other DTC.
DTC DETECTION CONDITION CHART

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0506 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