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Home >> Infiniti >> 2023 >> QX55 Essential >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (3 Of 5) >> DTC/Circuit Diagnosis >> DTC P0506: ISC System >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0506

00

ISC SYSTEM

(Idle Control System RPM - Lower Than Expected)

Diagnosis condition

Engine runnng at idle

Signal (terminal)

--

Threshold

The idle speed is less than the target idle speed by 100 rpm or more

Diagnosis delay time

--