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Engine-Codes.com | All About OBDII Engine Codes

P1504 Ford

P1504 Ford - Intake Air Control Circuit Malfunction

P1504 Ford Comments |  Add Comment
Possible causes
- Idle Air Control Valve harness is open or shorted
- Idle Air Control Valve circuit poor electrical connection
- Faulty Idle Air Control Valve
Help with Possible causes What does this mean?
When is the code detected?
Powertrain Control Module (PCM) has detected an electrical load failure on the IAC circuit.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1504 Ford Description

The Idle Air Control Valve (IACV) is used to control engine idle speed and allows air to bypass the throttle plate. The amount of air allowed to bypass is determined by the Powertrain Control Module (PCM) and controlled by a duty-cycle signal.

P1504 Ford Information for specific Ford models
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FORD Technical Service Bulletins for P1504 code
1998 FORD CONTOUR Unknown Or Other Details
1999 FORD CONTOUR Unknown Or Other Details
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