AutoCodes.com
Login with Google
AutoCodes – Ford – P1507 2011 Ford Fusion

P1507 2011 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 2011 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.
Save to My Repairs My Repairs
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,586
How popular is this code, among other codes? Low
What is this?
Table of contents Created and updated by William Orellana on Aug 25, 2019
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1507 2011 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 2011 Ford Fusion - Idle Air Control Under Speed Error - AutoCodes.com
P1507 2011 Ford Fusion Code - Idle Air Control Under Speed Error
What does this mean?

What are the Possible Causes of the DTC P1507 2011 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 2011 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 2011 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.

Need more information about the P1507 2011 Ford Fusion code?

Need more information on how to fix the P1507 2011 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1507 2011 Ford Fusion code diagnosed by a professional: Find a repair shop in your area

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 2011 Ford Fusion Code

1. What does the OBDII code P1507 mean on a 2011 Ford Fusion?

The P1507 code indicates an "Idle Air Control (IAC) Under Speed Error," meaning the engine's idle speed is lower than expected.

2. What are the common symptoms of code P1507 in a 2011 Ford Fusion?

Symptoms may include a rough or low idle, engine stalling, difficulty starting, and an illuminated check engine light.

3. What causes the P1507 code in a 2011 Ford Fusion?

Common causes include a malfunctioning idle air control valve, vacuum leaks, clogged throttle body, or issues with the Powertrain Control Module (PCM).

4. Can a dirty throttle body cause code P1507?

Yes, a clogged or dirty throttle body can restrict airflow and lead to an idle speed error, triggering the P1507 code.

5. How do I fix the P1507 code on a 2011 Ford Fusion?

Check for vacuum leaks, clean the throttle body, inspect and possibly replace the idle air control valve, and ensure the PCM is functioning properly.

6. Can a bad idle air control valve cause the engine to stall?

Yes, a faulty idle air control valve can disrupt airflow at idle, causing stalling or rough idling.

7. Is it safe to drive with the P1507 code on a 2011 Ford Fusion?

While it may be drivable, the engine could stall unexpectedly, posing a safety risk, so it's best to address the issue promptly.

8. How can I diagnose the P1507 code in a 2011 Ford Fusion?

Use an OBDII scanner to confirm the code, then inspect the idle air control valve, throttle body, and vacuum lines for faults or obstructions.

9. Can a vacuum leak trigger the P1507 code?

Yes, a vacuum leak can disrupt engine airflow and cause the idle speed to drop, triggering the P1507 code.

10. How much does it cost to repair the P1507 code on a 2011 Ford Fusion?

Repair costs vary but typically range between $100 and $300, depending on whether cleaning, part replacement, or additional diagnostics are needed.

Discuss the causes and fixes for P1507 2011 Ford Fusion OBDII Code

Submit a New Comment

Code P1507 2011 Ford Fusion comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play