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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 753 (Engine Controls - Powertrain DTC Charts & Descriptions - CNG, Flex-Fuel & Gasoline) >> Diagnostic Trouble Code (DTC) Charts >> P0511 - Idle Air Control Circuit Malfunction

P0511 - Idle Air Control Circuit Malfunction

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P0511 - IDLE AIR CONTROL CIRCUIT MALFUNCTION

Description:  This DTC is set when the PCM detects an electrical load failure on the IAC output circuit.
Possible Causes: 
  • IAC circuit open.
  • VPWR to IAC solenoid open.
  • IAC circuit shorted to PWR.
  • Damaged IAC valve.
  • PCM damaged.
  • IAC circuit short to GND.
Diagnostic Aids:  The IAC solenoid resistance is 6 to 13 ohms. Monitor the IAC PID duty cycle and/or voltage.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST KE: IDLE AIR CONTROL (IAC) VALVE Step 2.
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