LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2017 >> LS 460 Base, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (P1340-P11ED) & Circuit Tests >> SFI System >> DTC P0505: Idle Control System [09/2016 - ] >> Typical Malfunction Thresholds
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Typical Malfunction Thresholds

Either of the following conditions met 1 or 2
1. Both of following conditions A and B is met -
A. Engine speed - Target engine speed Less than -100 rpm, or more than 200 rpm (A/C on or NSW on)
Less than -100 rpm, or more than 150 rpm (A/C off and NSW off)
B. IAC flow rate learning value 1.69 L/sec. or less, or 10.08 L/sec. or more for 5 seconds or more
2. Both of following conditions C and D is met -
C. Frequency that both of the following conditions (a) and (b) are met 5 times or more
(a) Engine speed - Target engine speed Less than -100 rpm, or more than 200 rpm (A/C on or NSW on)
Less than -100 rpm, or more than 150 rpm (A/C off and NSW off)
(b) Vehicle condition Stop after vehicle was driven by 6.25 mph (10 km/h) or more
D. Either of following conditions (c) or (d) is met -
(c) Amount of change of IAC flow rate learning value +2.9 L/sec. or more, or -4.2 L/sec. or less
(d) IAC flow rate learning value 1.69 L/sec. or less, or 10.08 L/sec. or more