AutoCodes – Infiniti – B2556 Infiniti

B2556 Infiniti Code - Push-Button Ignition Switch

Quick Answer

The switch that changes the power supply position. Common causes include Faulty Push-Button Ignition Switch, Push-Button Ignition Switch harness is open or shorted, Push-Button 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: B2556 Infiniti indicates Push-Button Ignition Switch.
Common causes: Common causes include Faulty Push-Button Ignition Switch, Push-Button Ignition Switch harness is open or shorted, Push-Button 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 1,035

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 Dec 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2556 Infiniti Description

The switch that changes the power supply position. The Body Control Module (BCM) maintains the power supply position status. The BCM changes the power supply position with the operation of the push-button ignition switch. The BCM detects the push-button ignition switch stuck to ON for 100 seconds or more.

OBDII Code B2556 Infiniti - Push-Button Ignition Switch - AutoCodes.com — B2556 Infiniti Code - Push-Button Ignition Switch

What does this mean?

What are the Possible Causes of the DTC B2556 Infiniti?

Faulty Push-Button Ignition Switch
Push-Button Ignition Switch harness is open or shorted
Push-Button Ignition Switch circuit poor electrical connection

How to Fix the DTC B2556 Infiniti?

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 B2556 Infiniti 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 B2556 Infiniti code?

Need more information on how to fix the B2556 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2556 Infiniti 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 B2556 Infiniti Code

1. What does the OBDII code B2556 for Infiniti indicate?

The B2556 code specifically relates to a problem with the push-button ignition switch in an Infiniti vehicle.

2. What are the common symptoms of a B2556 code in an Infiniti?

Common symptoms include difficulty starting the vehicle, the engine not turning over, and the inability to recognize the key fob.

3. What are the possible causes of the B2556 code in an Infiniti?

Potential causes of the B2556 code include a faulty push-button ignition switch, issues with the key fob, or a malfunction in the vehicle's immobilizer system.

4. How can I diagnose the B2556 code in my Infiniti?

Diagnosing the B2556 code typically involves using a diagnostic scanner to read the code and identify the specific issue with the push-button ignition system.

5. Can I still drive my Infiniti with a B2556 code?

It is not recommended to drive your vehicle with a B2556 code, as it can lead to starting issues and potential safety concerns.

6. How can I repair a B2556 code in my Infiniti?

Repairing a B2556 code may involve replacing the push-button ignition switch, reprogramming the key fob, or addressing any underlying issues with the immobilizer system.

7. Are there any DIY tips for fixing a B2556 code in an Infiniti?

While some basic troubleshooting steps can be taken, it is often best to consult a professional mechanic or dealership to properly diagnose and repair the B2556 code.

8. How much does it cost to fix a B2556 code in an Infiniti?

The cost of fixing a B2556 code can vary depending on the specific issue and the labor rates of the repair shop. It is recommended to get multiple quotes for an accurate estimate.

9. Can a B2556 code be cleared/reset without repairs?

Clearing or resetting the B2556 code without addressing the underlying issue may temporarily resolve the warning light but will not fix the root cause of the problem.

10. Is the B2556 code specific to certain models of Infiniti vehicles?

The B2556 code may be found in various Infiniti models with push-button ignition systems, but it is always best to consult the vehicle's specific manual or a professional for accurate information.