LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2019 >> QX50 Essential, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (6 Of 12) >> DTC/Circuit Diagnosis >> DTC P0507: ISC System >> DTC Description >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0507

00

ISC SYSTEM

(Idle Control System RPM - Higher Than Expected)

Diagnosis condition

Engine running at idle

Signal (terminal)

--

Threshold

The idle speed is more than the target idle speed by 200 rpm or more

Diagnosis delay time

--