LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2007 >> IS 250 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (4GR-FSE) - DTC P0171 - P0606 >> DTC P0505 Idle Control System Malfunction >> Typical Malfunction Thresholds
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Typical Malfunction Thresholds

Functional check: 

TYPICAL MALFUNCTION THRESHOLDS

Either of following conditions 1 or 2 is met: -
1. Frequency that following conditions (a) and (b) are met: 5 time or more
(a) Engine RPM - target engine RPM Below -100 rpm, or more than 200 rpm
(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) ISC flow rate learning value 1.22 L/sec. or less, or 7.8 L/sec. or more