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HOMESERVICE MANUALSFORD2007FUSION SEL, 2.3 Z, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - POWERTRAIN DTC CHARTS AND DESCRIPTIONS (EXCEPT DIESEL & HYBRID)DTC DIAGNOSISP0506 - IDLE AIR CONTROL (IAC) SYSTEM RPM LOWER THAN EXPECTED
2007 Ford Fusion SEL, 2.3 Z, Standard

P0506 - Idle Air Control (IAC) System Rpm Lower Than Expected

2007 Ford Fusion SEL, 2.3 Z, StandardSECTION P0506 - Idle Air Control (IAC) System Rpm Lower Than Expected
P0506 - IDLE AIR CONTROL (IAC) SYSTEM RPM LOWER THAN EXPECTED

For Vehicles With Electronic Throttle Control (ETC) 
Description:  This DTC is set when the powertrain control module (PCM) detects an engine idle speed that is less than the desired RPM.
Possible Causes: 
  • Intake air restriction
  • Vacuum leaks
  • Exhaust restriction
  • Engine mechanical concern
  • Sludged throttle body
  • Damaged electronic throttle body (ETB)
  • Damaged PCM
Diagnostic Aids:  This DTC is informational only and it may be accompanied by other DTCs. Diagnose other DTCs first. If other DTCs are not present inspect the intake air system for air restrictions and damage. If no concerns are present, clear the DTC and carry out the KOER self-test.
For All Others 
Description:  This DTC is set when the powertrain control module (PCM) detects an engine idle speed that is less than the desired RPM.
Possible Causes: 
  • IAC circuit open
  • Air inlet is plugged
  • B+ or VPWR to IAC solenoid open
  • Damaged or incorrect IAC valve
  • IAC valve stuck closed
  • VPWR to IAC solenoid open
  • IAC circuit shorted to PWR
Diagnostic Aids:  Disconnect the IAC valve and look for little or no change in engine RPM as an indication of a stuck or damaged valve.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
Vehicles With Electronic Throttle Control (ETC) Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.
All others refer to PINPOINT TEST KE .
RENDER: 1.0x

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