AutoCodes – Nissan – B2556 Nissan

B2556 Nissan 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 Nissan 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 4,310

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 Nissan 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 Nissan - Push-Button Ignition Switch - AutoCodes.com — B2556 Nissan Code - Push-Button Ignition Switch

What does this mean?

What are the Possible Causes of the DTC B2556 Nissan?

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 Nissan?

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 Nissan 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.

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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 B2556 Nissan Code

1. What are the common symptoms of OBDII code B2556 in a Nissan with a push-button ignition switch?

- Common symptoms include difficulty starting the vehicle, the engine not turning over, and the push-button ignition not responding.

2. What is the most likely cause of OBDII code B2556 in a Nissan with a push-button ignition switch?

- The most common cause of this code is a malfunction in the push-button ignition switch itself.

3. How can I diagnose the issue causing OBDII code B2556 in my Nissan with a push-button ignition switch?

- Diagnosing the issue involves inspecting the push-button ignition switch for any visible damage or loose connections, as well as using a diagnostic scan tool to check for specific error codes.

4. Can OBDII code B2556 in a Nissan be reset without repairing the issue with the push-button ignition switch?

- While you can clear the error code temporarily, it is recommended to address the underlying issue with the push-button ignition switch to prevent further problems.

5. Are there any DIY repair tips for fixing OBDII code B2556 in a Nissan with a push-button ignition switch?

- DIY repair tips may include cleaning the contacts of the push-button ignition switch, checking and securing any loose connections, or replacing the switch if necessary.

6. Is it safe to continue driving my Nissan with OBDII code B2556 related to the push-button ignition switch?

- It is not recommended to drive the vehicle with this issue as it may lead to further starting problems or potential safety hazards.

7. How much does it typically cost to repair OBDII code B2556 in a Nissan with a push-button ignition switch?

- The cost of repair can vary depending on the extent of the issue, but it may involve replacing the push-button ignition switch, which can range from $100 to $300 including parts and labor.

8. Can a faulty key fob cause OBDII code B2556 to trigger in a Nissan with a push-button ignition switch?

- Yes, a faulty key fob can potentially trigger the code, so it's recommended to check the key fob's battery and functionality as part of the diagnosis.

9. Are there any recalls or technical service bulletins related to OBDII code B2556 in Nissan vehicles with push-button ignition switches?

- It's advisable to check with Nissan dealerships or online resources for any recalls or technical service bulletins specific to this issue in your vehicle.

10. How can I prevent OBDII code B2556 from occurring again in my Nissan with a push-button ignition switch?

- To prevent the code from recurring, it's essential to maintain the push-button ignition switch and key fob in good condition, avoid rough handling of the buttons, and address any starting issues promptly.