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Home >> Infiniti >> 2015 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 117 (Engine Control System (DTC/Circuit Diagnosis) (VQ35DE) (Except Hybrid) (2 Of 3)) >> DTC/Circuit Diagnosis >> DTC P0507: ISC System >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

If DTC P0507 is displayed with other DTC, first perform the trouble diagnosis for the other DTC. 

DTC No. CONSULT screen terms
(Trouble diagnosis content)		 DTC detecting condition Possible cause
P0507 ISC SYSTEM
(Idle air control system RPM higher than expected)		 The idle speed is more than the target idle speed by 200 RPM or more.
  • Electric throttle control actuator
  • Intake air leakage
  • PCV system
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