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Home >> Scion >> 2006 >> xA Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (1NZ-FE) >> SFI System >> DTC P0505 Idle Control System Malfunction; DTC P0511 Idle Air Control Circuit >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

P0505 IAC functional check: 

P0505 IAC FUNCTIONAL CHECK

When either condition below is met: 1 or 2
1. Frequency that both of following conditions (a) and (b) set 5 times or more
(a) Engine rpm - Target engine rpm Less than -100 rpm, or more than 150 rpm
(b) Vehicle condition Stop after vehicle was driven by 10 km/h (6.25 mph) or more
2. Frequency that both of following conditions (c) and (d) set Once
(c) Engine rpm - Target engine rpm Less than -100 rpm, or more than 150 rpm
(d) IAC flow rate learning value 0.55 L/sec. or less, or 2.75 L/sec. or more

P0505 IAC range check: 

P0505 IAC RANGE CHECK REFERENCE

Number of missed output voltage change 2,000 times or more

P0511: 

DIAGNOSIS PROCEDURE

Number of missed output voltage change 1,000 times or more
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