AutoCodes – Ford – P1379 Ford

P1379 Ford Code - Fuel Injection Control Module Circuit High Voltage

Quick Answer

The Engine Control Module (ECM) has detected an incorrect voltage level at the Fuel Injection Control Module (FICM) Common causes include Faulty Fuel Injection Control Module (FICM), Fuel Injection Control Module harness is open or shorted, Fuel Injection Control Module 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: P1379 Ford indicates Fuel Injection Control Module Circuit High Voltage.
Common causes: Common causes include Faulty Fuel Injection Control Module (FICM), Fuel Injection Control Module harness is open or shorted, Fuel Injection Control Module 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 13,164

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 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1379 Ford Description

The Engine Control Module (ECM) has detected an incorrect voltage level at the Fuel Injection Control Module (FICM)

OBDII Code P1379 Ford - Fuel Injection Control Module Circuit High Voltage - AutoCodes.com — P1379 Ford Code - Fuel Injection Control Module Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1379 Ford?

Faulty Fuel Injection Control Module (FICM)
Fuel Injection Control Module harness is open or shorted
Fuel Injection Control Module circuit poor electrical connection
Faulty Battery or Charging system

How to Fix the DTC P1379 Ford?

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 P1379 Ford 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 P1379 Ford code?

Need more information on how to fix the P1379 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1379 Ford 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 P1379 Ford Code

1. What are the common symptoms of OBDII code P1379 in a Ford vehicle?

Symptoms may include engine misfires, rough idling, decreased fuel efficiency, and in some cases, the vehicle may go into limp mode.

2. What are the possible causes of the Fuel Injection Control Module Circuit High Voltage code P1379 in a Ford?

Common causes can include a faulty fuel injection control module, damaged wiring or connectors, a short circuit, or issues with the powertrain control module (PCM).

3. How can I diagnose the cause of code P1379 in my Ford vehicle?

It is recommended to use an OBDII scanner to retrieve the code and then inspect the fuel injection control module, wiring, and connectors for any visible damage. Further testing may be needed with a multimeter or oscilloscope.

4. Can I still drive my Ford with the P1379 code present?

It is not advisable to drive the vehicle with this code present, as it can lead to further damage and potential safety hazards. It's recommended to address the issue promptly.

5. Is it possible to reset the P1379 code in a Ford without repairs?

While clearing the code may temporarily remove the warning light, the underlying issue causing the code will still persist. It's important to diagnose and repair the problem to prevent it from reoccurring.

6. How much does it typically cost to repair OBDII code P1379 in a Ford?

The cost of repairs can vary depending on the exact cause of the issue. It's recommended to consult a professional mechanic for an accurate diagnosis and cost estimate.

7. Can a DIY enthusiast fix the P1379 code in a Ford at home?

Depending on your experience and access to tools, some simpler repairs such as checking and cleaning connectors or replacing a faulty fuel injection control module may be possible. However, complex issues may require professional expertise.

8. Will disconnecting the battery reset the P1379 code in a Ford?

Disconnecting the battery may reset some codes temporarily, but it's not a guaranteed solution for resolving the underlying issue causing code P1379. Proper diagnostics and repairs are necessary.

9. Are there any preventive maintenance tips to avoid OBDII code P1379 in a Ford?

Regularly checking and maintaining the fuel injection system, ensuring proper wiring connections, and promptly addressing any engine performance issues can help prevent code P1379 from occurring.

10. How urgent is it to address the P1379 code in a Ford?

It is recommended to address the P1379 code promptly to prevent further damage to the vehicle and ensure optimal performance. Driving with this code present can lead to more severe issues over time.