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HOMESERVICE MANUALSFORD2009FUSION SEL, 3.0 1, FWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID)DTC DIAGNOSISDTC P0505: - IDLE AIR CONTROL (IAC) SYSTEM
2009 Ford Fusion SEL, 3.0 1, FWD

DTC P0505: - Idle Air Control (IAC) System

2009 Ford Fusion SEL, 3.0 1, FWDSECTION DTC P0505: - Idle Air Control (IAC) System
DTC P0505: - IDLE AIR CONTROL (IAC) SYSTEM

For Vehicles With an Idle Air Control (IAC) Valve 
Description:  The powertrain control module (PCM) attempts to control engine speed during the key on, engine running (KOER) self-test. The test fails when the desired RPM could not be reached or controlled during the self-test.
Possible Causes: 
  • IAC circuit open
  • VPWR to IAC solenoid open
  • B+ or VPWR to IAC solenoid open
  • Air inlet is plugged
  • IAC circuit shorted to PWR
  • Damaged IAC valve
Diagnostic Aids: 
For All others 
Description:  The powertrain control module (PCM) attempts to control engine speed during the key on, engine running (KOER) self-test. The test fails when the desired RPM could not be reached or controlled during the self-test.
Possible Causes: 
  • Failure mode effects management (FMEM) condition is present
  • Intake air restriction
  • Exhaust restriction
  • Sludged throttle body
  • Vacuum leaks
  • Damaged electronic throttle body (ETB)
  • Damaged PCM
Diagnostic Aids:  This DTC may be accompanied by other DTCs. Diagnose other DTCs first. If other DTCs are not present inspect the intake air system for air restrictions, vacuum leaks, and damage. If no concerns are present, clear the DTC and carry out the KOER self-test.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
Ranger GO to Pinpoint Test KE .
All others GO to Pinpoint Test HU .
RENDER: 1.0x

NO RELATED

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