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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 178 (Engine Control System (2GR-FSE) - DTC P0171 - P050A) >> DTC P0505 Idle Control System Malfunction >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

WARNING: This page is about a different car, the 2008 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
TYPICAL MALFUNCTION THRESHOLDS

Either of the following conditions 1 or 2 is met: -
1. Frequency that both of the following conditions (a) and (b) are met: 5 times or more
(a) Engine RPM - target engine RPM Less than -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 both of the following conditions (c) and (d) are met: Once
(c) Engine RPM - target engine RPM Less than -100 rpm, or more than 200 rpm
(d) ISC flow rate learning value 1.3 L/sec. or less, or 8.82 L/sec. or more