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Home >> Scion >> 2004 >> xA Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnosis >> DTC P0505, DTC P0511: Idle Air Control System Circuit >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

TYPICAL MALFUNCTION THRESHOLDS

Detection Criteria Threshold
P0505 Functional Check: 
Following Conditions Are Met At Idle (After Running With More Than 6.2 mph (10 km/h)) Per Trip: A, B and C
A. Either Following Condition Is Met: 1 or 2
1. Deviation Of Engine Speed (When Shift Position N Or A/C ON) Less Than -100 RPM Or More Than 200 RPM
2. Deviation Of Engine Speed (When Shift Position D Or A/C OFF) Less Than -100 RPM Or More Than 150 RPM
B. IAC Flow Rate Learning Value -0.07 L/Sec Or Less Or 0.75 L/Sec Or More (A/C OFF)
0.38 L/Sec Or Less Or 1.88 L/Sec Or More (A/C ON)
C. Number Of Detections 5 Times/Trip
P0505 Range Check: 
Missing Output Duty Voltage
P0511: 
Number Of Missing Output Voltage Change 1000 Times Or More