Engine-CodesFord – P1379 Ford

P1379 Ford Code - Fuel Injection Control Module Circuit High Voltage

Quick Answer

The P1379 Ford code indicates a problem with the fuel injection control module circuit having high voltage. Common causes include Faulty fuel injection control module, Damaged wiring or connectors in the circuit, Issues with the power supply to the module. 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, Damaged wiring or connectors in the circuit, Issues with the power supply to the module.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1379 Ford Description

The P1379 Ford code indicates a problem with the fuel injection control module circuit having high voltage. The fuel injection control module plays a crucial role in the proper functioning of the fuel injection system in modern vehicles. This module is responsible for regulating and controlling the amount of fuel that is injected into the engine cylinders, ensuring efficient combustion and optimal engine performance.

OBDII Code P1379 Ford - Fuel Injection Control Module Circuit High Voltage
P1379 Ford Code - Fuel Injection Control Module Circuit High Voltage

Common Causes of P1379 Ford

  1. Faulty fuel injection control module
  2. Damaged wiring or connectors in the circuit
  3. Issues with the power supply to the module
  4. Corrosion or moisture in the circuit
  5. Electrical system malfunction

Symptoms of P1379 Ford

  1. Reduced fuel efficiency
  2. Engine misfires
  3. Rough idling or stalling
  4. Reduced engine power
  5. Illuminated check engine light

How to Fix P1379 Ford

  1. Use a diagnostic scanner to retrieve the trouble codes and pinpoint the exact cause of the high voltage in the fuel injection control module circuit.
  2. Inspect the wiring and connectors in the circuit for any damage or corrosion. Repair or replace any faulty components.
  3. Test the power supply to the module to ensure it is within the correct voltage range. Repair any issues with the power supply if necessary.
  4. Replace the fuel injection control module if it is found to be faulty and causing the high voltage in the circuit.
  5. Clear the trouble codes and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1379 Ford

The typical repair costs for addressing the P1379 Ford code can vary depending on the root cause of the issue and the extent of the repairs needed. In general, the cost of replacing a faulty fuel injection control module can range from $200 to $500, including parts and labor. Additional costs may apply if there are other components that need to be repaired or replaced. It is advisable to consult with a certified mechanic or auto repair shop for a more accurate estimate based on the specific vehicle make and model. Keep in mind that diagnostic time and labor rates can vary, so it is essential to inquire about these factors when seeking repairs for this issue.

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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 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.

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