AutoCodes – Ford – B1359 Ford

B1359 Ford Code - Ignition Run/Acc Circuit Failure

Quick Answer

The Ignition Switch RUN/ACC circuit provides voltage through the circuits to the Smart Junction Box (SJB) when the key is in the RUN/ACC position. Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition Switch 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: B1359 Ford indicates Ignition Run/Acc Circuit Failure.
Common causes: Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition Switch 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 28,183

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 Mar 15, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1359 Ford Description

The Ignition Switch RUN/ACC circuit provides voltage through the circuits to the Smart Junction Box (SJB) when the key is in the RUN/ACC position. The OBDII sets when the Ignition Switch signal is not factory specifications.

OBDII Code B1359 Ford - Ignition Run/Acc Circuit Failure - AutoCodes.com — B1359 Ford Code - Ignition Run/Acc Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1359 Ford?

Faulty Ignition Switch
Ignition Switch harness is open or shorted
Ignition Switch circuit poor electrical connection
Faulty Smart Junction Box (SJB)

How to Fix the DTC B1359 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 B1359 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 B1359 Ford code?

Need more information on how to fix the B1359 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1359 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 B1359 Ford Code

1. What are the common symptoms of OBDII code B1359 Ford (Ignition Run/Acc Circuit Failure)?

- Common symptoms include the engine stalling or not starting, loss of power to key components like the radio and power windows, and the check engine light being illuminated.

2. What are the possible causes of OBDII code B1359 Ford?

- The code B1359 Ford typically indicates an issue with the ignition run/accessory circuit, which can be caused by a faulty ignition switch, damaged wiring, blown fuses, or a malfunctioning accessory relay.

3. How can I diagnose the OBDII code B1359 Ford?

- Diagnosis usually involves checking the ignition switch, inspecting the wiring harness for any damage, testing the fuses and relays related to the ignition circuit, and using a diagnostic scanner to retrieve the trouble codes.

4. Can I still drive my vehicle with OBDII code B1359 Ford?

- It is not recommended to drive your vehicle with the B1359 code present, as it can lead to unexpected stalling or loss of power while driving, posing a safety risk.

5. How can I repair OBDII code B1359 Ford?

- Repairing the B1359 code involves addressing the root cause of the ignition run/accessory circuit failure, which may include replacing the ignition switch, repairing damaged wiring, replacing blown fuses, or troubleshooting and replacing a faulty relay.

6. Is it possible to reset the OBDII code B1359 Ford without fixing the underlying issue?

- While clearing the trouble code may temporarily turn off the check engine light, the issue causing the code will persist, and the code is likely to return until the underlying problem is resolved.

7. Can a DIY enthusiast fix OBDII code B1359 Ford at home?

- Depending on the specific cause of the code, DIY enthusiasts may be able to address the issue at home by following repair guides, using basic tools, and having some knowledge of automotive electrical systems.

8. How much does it cost to fix OBDII code B1359 Ford at a repair shop?

- The cost of fixing the B1359 code at a repair shop can vary widely depending on the cause of the issue, the labor rates in your area, and the parts needed for the repair. It is recommended to get a diagnostic assessment from a professional to determine the exact cost.

9. Will OBDII code B1359 Ford cause permanent damage to my vehicle if left unfixed?

- Ignoring the B1359 code can lead to further electrical issues, potential damage to key components in the ignition circuit, and safety hazards due to unexpected stalling or loss of power. It is best to address the problem promptly to avoid costly repairs or accidents.

10. How long does it typically take to fix OBDII code B1359 Ford?

- The repair time for the B1359 code can vary based on the specific cause of the issue, the availability of parts, and the expertise of the person performing the repair. In some cases, the issue can be resolved within a few hours, while more complex problems may take longer to diagnose and fix.