AutoCodes – Mercury – B1359 Mercury

B1359 Mercury 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 Mercury 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 1,024

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

What does this mean?

What are the Possible Causes of the DTC B1359 Mercury?

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 Mercury?

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 Mercury 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 Mercury code?

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

Need Help with the Code?

Get the B1359 Mercury 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 Mercury Code

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

The common symptoms include difficulty starting the vehicle, intermittent stalling, and the inability to turn off the ignition.

2. What are the possible causes of OBDII code B1359 (Mercury)?

Possible causes of this code include a faulty ignition switch, damaged wiring in the ignition circuit, or a malfunctioning ignition relay.

3. How can I diagnose the Ignition Run/Acc Circuit Failure related to code B1359 on my Mercury?

To diagnose the issue, you can perform a visual inspection of the ignition components, test the ignition switch and related circuits with a multimeter, and check for any loose or damaged wiring.

4. Can I still drive my Mercury with OBDII code B1359 (Ignition Run/Acc Circuit Failure)?

It is not recommended to drive your vehicle with this code as it can lead to potential safety hazards like stalling while driving. It is best to address the issue promptly.

5. How can I repair OBDII code B1359 (Mercury) related to Ignition Run/Acc Circuit Failure?

Repair options include replacing the faulty ignition switch, repairing damaged wiring, or replacing the malfunctioning ignition relay. It is recommended to consult a professional mechanic for proper diagnosis and repair.

6. Will resetting the OBDII code B1359 (Mercury) make the issue go away?

Resetting the code may temporarily clear the Check Engine light, but it will not solve the underlying issue causing the Ignition Run/Acc Circuit Failure. It is crucial to address the root cause of the problem.

7. How much does it cost to repair OBDII code B1359 (Mercury)?

The cost of repairing this code can vary depending on the specific issue causing the Ignition Run/Acc Circuit Failure. It is advisable to get a diagnostic from a mechanic to determine the exact repair cost.

8. Are there any preventive measures to avoid OBDII code B1359 (Mercury)?

Regular maintenance of the ignition system, including checking for loose connections and worn out components, can help prevent issues leading to code B1359 related to Ignition Run/Acc Circuit Failure.

9. Can a DIY enthusiast fix OBDII code B1359 (Mercury) themselves?

While basic troubleshooting like checking for loose connections can be done by a DIY enthusiast, diagnosing and repairing complex issues related to this code may require professional expertise to ensure proper resolution.

10. How urgent is it to address OBDII code B1359 (Mercury) Ignition Run/Acc Circuit Failure?

It is recommended to address this code promptly to avoid potential safety risks associated with ignition system failure, such as stalling while driving or being unable to turn off the vehicle.