AutoCodes – Ford – P1507 2012 Ford Fusion

P1507 2012 Ford Fusion Code - Idle Air Control Under Speed Error

Quick Answer

The Idle Air Control Valve (IACV) valve assembly controls the engine idle speed and provides a dashpot function. Common causes include Faulty Idle Air Control (IAC) valve, IAC valve stuck closed, IAC valve harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1507 2012 Ford Fusion indicates Idle Air Control Under Speed Error.
Common causes: Common causes include Faulty Idle Air Control (IAC) valve, IAC valve stuck closed, IAC valve harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 7,582

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 25, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1507 2012 Ford Fusion Description

The Idle Air Control Valve (IACV) valve assembly controls the engine idle speed and provides a dashpot function. The IAC valve assembly meters intake air around the throttle plate through a bypass within the IAC valve assembly and throttle body. The Powertrain Control Module (PCM) determines the desired idle speed or bypass air and signals the IAC valve assembly through a specified duty cycle. The IAC valve responds by positioning the IAC valve to control the amount of bypassed air. The PCM monitors engine RPM and increases or decreases the IAC duty cycle in order to achieve the desired RPM.

OBDII Code P1507 2012 Ford Fusion - Idle Air Control Under Speed Error - AutoCodes.com — P1507 2012 Ford Fusion Code - Idle Air Control Under Speed Error

What does this mean?

What are the Possible Causes of the DTC P1507 2012 Ford Fusion?

Faulty Idle Air Control (IAC) valve
IAC valve stuck closed
IAC valve harness is open or shorted
IAC valve circuit poor electrical connection

How to Fix the DTC P1507 2012 Ford Fusion?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

The P1507 code means that the engine idle is out of factory specification. Sometimes the Idle Air Control (IAC) may have carbon built up. Disconnect the car battery, remove the valve, clean, re-install valve, and drive the vehicle for about 5 minutes with the headlights and A/C ON to get the idle relearned.
If the problem persistss, the IAC valve may need to be replaced.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1507 2012 Ford Fusion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1507 2012 Ford Fusion Code

1. What does OBDII code P1507 in a 2012 Ford Fusion indicate?

The P1507 code in a 2012 Ford Fusion signifies an Idle Air Control Under Speed Error, which means that the engine's idle speed is lower than expected.

2. What are the common symptoms of a P1507 code in a 2012 Ford Fusion?

Common symptoms of the P1507 code include rough idle, stalling at idle, fluctuating idle speed, and potential misfires.

3. What are the possible causes of the P1507 code in a 2012 Ford Fusion?

Potential causes of the P1507 code include a faulty idle air control valve, vacuum leaks, issues with the throttle body, dirty or clogged air filters, or a malfunctioning mass airflow sensor.

4. How can I diagnose the P1507 code in my 2012 Ford Fusion?

Diagnosing the P1507 code involves checking for vacuum leaks, inspecting the idle air control valve and throttle body, testing the mass airflow sensor, and ensuring proper air filter cleanliness.

5. How can I repair the P1507 code in my 2012 Ford Fusion?

Repairing the P1507 code may involve cleaning or replacing the idle air control valve, fixing any vacuum leaks, cleaning the throttle body, replacing the air filter, or replacing the mass airflow sensor if necessary.

6. Can I continue driving my 2012 Ford Fusion with a P1507 code?

It is not recommended to drive your vehicle for an extended period with a P1507 code, as it can lead to further engine issues and potential damage. It's best to address the problem promptly.

7. Will resetting the OBDII system clear the P1507 code in my 2012 Ford Fusion?

Resetting the OBDII system may temporarily clear the P1507 code, but if the underlying issue is not addressed, the code is likely to reappear after driving the vehicle again.

8. How much does it typically cost to repair a P1507 code in a 2012 Ford Fusion?

The cost of repairing a P1507 code can vary depending on the specific cause of the issue and whether you perform the repairs yourself or take your vehicle to a mechanic. Costs may range from a few dollars for simple fixes to a few hundred dollars for more complex repairs.

9. Can a P1507 code in a 2012 Ford Fusion cause other problems if left unresolved?

While the P1507 code itself may not directly cause serious issues, leaving it unresolved can lead to poor engine performance, decreased fuel efficiency, and potential long-term damage to engine components.

10. How often should I check for the P1507 code in my 2012 Ford Fusion?

It's recommended to regularly monitor your vehicle for any OBDII codes, including the P1507 code, especially if you notice any symptoms related to idle speed or engine performance.