AutoCodes – Ford – P1506 2011 Ford Fusion

P1506 2011 Ford Fusion Code - Idle Air Control Overspeed 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 harness is open or shorted, IAC valve circuit poor electrical connection. 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: P1506 2011 Ford Fusion indicates Idle Air Control Overspeed Error.
Common causes: Common causes include Faulty Idle Air Control (IAC) valve, IAC valve harness is open or shorted, IAC valve circuit poor electrical connection.
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 3,155

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 P1506 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 P1506 2011 Ford Fusion - Idle Air Control Overspeed Error - AutoCodes.com — P1506 2011 Ford Fusion Code - Idle Air Control Overspeed Error

What does this mean?

What are the Possible Causes of the DTC P1506 2011 Ford Fusion?

Faulty Idle Air Control (IAC) valve
IAC valve harness is open or shorted
IAC valve circuit poor electrical connection
Intake leaks
Stuck PCV Valve

How to Fix the DTC P1506 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 P1506 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.
Also, check for intake leaks or stuck PCV Valve.
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 P1506 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.

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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 P1506 2011 Ford Fusion Code

1. What are the common symptoms of OBDII code P1506 in a 2011 Ford Fusion?

- Common symptoms include rough idle, stalling at idle, fluctuating idle speed, and potential engine hesitation.

2. What does the OBDII code P1506 for a 2011 Ford Fusion indicate?

- OBDII code P1506 refers to an Idle Air Control Overspeed Error, signaling an issue with the idle air control system.

3. What are the possible causes of OBDII code P1506 in a 2011 Ford Fusion?

- Causes can include a faulty idle air control valve, a vacuum leak, a dirty throttle body, or issues with the engine's air intake system.

4. How can I diagnose the OBDII code P1506 in my 2011 Ford Fusion?

- Diagnosing the issue may involve checking for vacuum leaks, inspecting the idle air control valve for proper functioning, and cleaning the throttle body.

5. Can driving with OBDII code P1506 in a 2011 Ford Fusion cause further damage?

- Driving with this code may lead to poor engine performance, reduced fuel efficiency, and potential damage to engine components over time if left unresolved.

6. How can I repair OBDII code P1506 in my 2011 Ford Fusion?

- Repair options may include replacing the idle air control valve, fixing any vacuum leaks, cleaning the throttle body, and ensuring proper air intake system function.

7. Is it safe to continue driving my 2011 Ford Fusion with OBDII code P1506?

- It is not recommended to continue driving with this code as it can lead to further engine issues and potential safety concerns due to erratic engine behavior.

8. Can I reset the OBDII code P1506 in my 2011 Ford Fusion by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is best to diagnose and repair the underlying issue to prevent the code from reoccurring.

9. Will the OBDII code P1506 in my 2011 Ford Fusion cause my check engine light to illuminate?

- Yes, this code will trigger the check engine light to come on to alert you to a potential issue with the idle air control system.

10. How much can I expect to pay for repairs related to OBDII code P1506 in my 2011 Ford Fusion?

- The cost of repairs can vary depending on the specific issue, but it's advisable to budget for replacement parts and potential labor costs associated with diagnosis and repair.