AutoCodes – Ford – P1479 2008 Ford Fusion

P1479 2008 Ford Fusion Code - High Fan Control Primary Circuit

Quick Answer

Monitors the High Fan Control (HFC) primary circuit output from the Powertrain Control Module (PCM). Common causes include Faulty Cooling Fan, Cooling Fan harness is open or shorted, Cooling Fan 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: P1479 2008 Ford Fusion indicates High Fan Control Primary Circuit.
Common causes: Common causes include Faulty Cooling Fan, Cooling Fan harness is open or shorted, Cooling Fan 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 1,625

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1479 2008 Ford Fusion Description

Monitors the High Fan Control (HFC) primary circuit output from the Powertrain Control Module (PCM). The test fails if the HFC output commanded on (grounded), excessive current draw is detected on the HFC circuit or, with the HFC circuit commanded off, voltage is not detected on the HFC circuit (the PCM expects to detect VPWR voltage through the high speed FC relay coil to the HFC circuit).

OBDII Code P1479 2008 Ford Fusion - High Fan Control Primary Circuit - AutoCodes.com — P1479 2008 Ford Fusion Code - High Fan Control Primary Circuit

What does this mean?

What are the Possible Causes of the DTC P1479 2008 Ford Fusion?

Faulty Cooling Fan
Cooling Fan harness is open or shorted
Cooling Fan circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1479 2008 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1479 2008 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 P1479 2008 Ford Fusion code?

Need more information on how to fix the P1479 2008 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1479 2008 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 P1479 2008 Ford Fusion Code

1. What are the common symptoms of OBDII code P1479 on a 2008 Ford Fusion?

The common symptoms of code P1479 on a 2008 Ford Fusion include the radiator fan running continuously at high speed, engine overheating, and potential decrease in fuel efficiency.

2. What does the OBDII code P1479 indicate on a 2008 Ford Fusion?

Code P1479 on a 2008 Ford Fusion indicates a problem with the High Fan Control Primary Circuit, specifically relating to the radiator fan control system.

3. What are some possible causes of OBDII code P1479 on a 2008 Ford Fusion?

Possible causes of code P1479 on a 2008 Ford Fusion include a faulty radiator fan motor, issues with the fan control module, wiring defects, or a malfunctioning engine coolant temperature sensor.

4. How can I diagnose the cause of OBDII code P1479 on my 2008 Ford Fusion?

To diagnose the cause of code P1479 on a 2008 Ford Fusion, you can start by checking the radiator fan operation, inspecting the wiring and connections, testing the fan control module, and verifying the engine coolant temperature sensor functionality.

5. Can I continue driving my 2008 Ford Fusion with OBDII code P1479?

It is not recommended to continue driving your 2008 Ford Fusion with code P1479, as it can lead to engine overheating and potential damage. Prompt diagnosis and repair are advised.

6. How can I repair OBDII code P1479 on a 2008 Ford Fusion?

Repairing code P1479 on a 2008 Ford Fusion involves identifying and addressing the root cause, which may include replacing the radiator fan motor, repairing wiring issues, replacing the fan control module, or fixing the engine coolant temperature sensor.

7. Is it possible to reset OBDII code P1479 on a 2008 Ford Fusion without fixing the issue?

Resetting code P1479 on a 2008 Ford Fusion without addressing the underlying problem will likely result in the code reappearing once the issue is detected again. It is recommended to diagnose and repair the root cause first.

8. Can a DIY enthusiast fix OBDII code P1479 on a 2008 Ford Fusion?

Depending on the level of expertise and access to tools, a DIY enthusiast may be able to fix code P1479 on a 2008 Ford Fusion by following repair guides and utilizing diagnostic tools. However, professional help is recommended for complex issues.

9. Will OBDII code P1479 on a 2008 Ford Fusion affect vehicle performance?

Code P1479 on a 2008 Ford Fusion can affect vehicle performance by causing engine overheating, reduced fuel efficiency, and potential engine damage if not addressed promptly. It is essential to resolve the issue to maintain optimal performance.

10. How much does it cost to repair OBDII code P1479 on a 2008 Ford Fusion?

The cost to repair code P1479 on a 2008 Ford Fusion can vary depending on the specific cause of the issue, parts needed for replacement, and labor charges. It is advisable to obtain quotes from automotive professionals for an accurate estimate.