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Engine-Codes – Ford – B1356 Ford

B1356 Ford Code - Ignition Run Circuit Open

Quick Answer

The B1356 Ford diagnostic trouble code indicates an issue with the ignition run circuit being open. Common causes include Faulty ignition switch, Damaged wiring or loose connections in the ignition circuit, Malfunctioning ignition coil or 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
B1356 Ford indicates Ignition Run Circuit Open.
Common causes
Common causes include Faulty ignition switch, Damaged wiring or loose connections in the ignition circuit, Malfunctioning ignition coil or 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code B1356 Ford Description

The B1356 Ford diagnostic trouble code indicates an issue with the ignition run circuit being open. This means that there is a disruption in the electrical circuit that is responsible for powering the ignition system when the vehicle is running. The ignition system plays a crucial role in starting the engine, generating spark for combustion, and maintaining engine performance. When this circuit is open, it can lead to starting issues, stalling, misfiring, and overall poor engine performance.

OBDII Code B1356 Ford - Ignition Run Circuit Open
B1356 Ford Code - Ignition Run Circuit Open

Common Causes of B1356 Ford

  1. Faulty ignition switch
  2. Damaged wiring or loose connections in the ignition circuit
  3. Malfunctioning ignition coil or module
  4. Corrosion or contamination in the ignition system components
  5. Electrical issues such as a blown fuse or relay

Symptoms of B1356 Ford

  1. Engine stalling or difficulty starting
  2. Rough idling or misfiring
  3. Reduced engine performance
  4. Check engine light illuminated
  5. Vehicle may not start at all

How to Fix B1356 Ford

  1. Perform a thorough inspection of the ignition system components and wiring to identify the source of the open circuit.
  2. Test the ignition switch for proper functionality and replace if necessary.
  3. Check and repair any damaged wiring or connections in the ignition circuit.
  4. Test the ignition coil and module for proper operation and replace if faulty.
  5. Clear the trouble code from the vehicle's computer and test drive to ensure the issue has been resolved.

Cost to Fix B1356 Ford

The cost of repairing the B1356 Ford code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the cost of parts for this repair could range from $50 to $200, while labor costs could range from $100 to $300. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the repair shop's labor rates. It is recommended to obtain quotes from local auto repair shops to get a more accurate cost estimate for addressing 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 B1356 Ford Code

1. What are the common symptoms of OBDII code B1356 "Ignition Run Circuit Open" in a Ford vehicle?

- Common symptoms include difficulty starting the vehicle, intermittent stalling, and illumination of the check engine light.

2. What can cause the OBDII code B1356 in a Ford, indicating an "Ignition Run Circuit Open" issue?

- The code B1356 is typically triggered by a faulty ignition switch, damaged wiring in the ignition circuit, or a malfunctioning ignition lock cylinder.

3. How can I diagnose the OBDII code B1356 "Ignition Run Circuit Open" in my Ford vehicle?

- Diagnosing code B1356 involves checking the ignition switch for proper operation, inspecting the wiring for any damage or corrosion, and testing the ignition lock cylinder.

4. Is it safe to continue driving my Ford with the OBDII code B1356 present?

- It is not recommended to drive the vehicle with the B1356 code, as it can lead to potential safety hazards like stalling while driving.

5. Can I reset the OBDII code B1356 in my Ford without fixing the underlying issue?

- While you can clear the code temporarily, it will likely return until the root cause of the "Ignition Run Circuit Open" problem is properly addressed.

6. How much does it typically cost to repair the OBDII code B1356 in a Ford vehicle?

- The cost of repairing the B1356 code can vary depending on the exact cause of the issue, but it may involve replacing the ignition switch, repairing damaged wiring, or fixing the ignition lock cylinder.

7. Are there any DIY tips for fixing the OBDII code B1356 "Ignition Run Circuit Open" in a Ford?

- DIY tips include carefully inspecting the ignition switch and wiring for any visible damage, ensuring proper connections, and consulting the vehicle's service manual for guidance.

8. Can a faulty battery or alternator cause the OBDII code B1356 to appear in a Ford?

- While a weak battery or alternator can potentially cause electrical issues, the B1356 code specifically points to problems within the ignition circuit and is more likely related to the ignition components.

9. Will fixing the OBDII code B1356 in my Ford improve fuel efficiency or performance?

- Resolving the B1356 code is more about ensuring the proper functioning and safety of the ignition system, and it may not directly impact fuel efficiency or performance.

10. How long does it typically take to repair the OBDII code B1356 "Ignition Run Circuit Open" in a Ford at a professional auto repair shop?

- The repair time can vary based on the exact cause of the issue and the shop's workload, but fixing the B1356 code usually takes a few hours to complete.

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