LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2008 >> IS F >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - SFI System Diagnostics (3 Of 4) >> DTC P0505 Idle Control System Malfunction >> Typical Malfunction Thresholds
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Typical Malfunction Thresholds

Functional Check 

TYPICAL MALFUNCTION THRESHOLDS CHART

Either of following conditions 1 or 2 is met -
1 Frequency that following conditions (a) and (b) are met 5 times or more
(a) Engine RPM - target engine RPM Below -100 rpm, or 200 rpm or more
(b) Vehicle condition Stop after vehicle was driven by 6 25 mph (10 km/h) or more
2 Frequency that following conditions (a) and (b) are met Once
(a) Engine RPM - target engine RPM Below -100 rpm, or 200 rpm or more
(b) Idle speed control flow rate learning value 2 37 L/sec or less or 10 56 L/sec or more