AutoCodes – Infiniti – B2552 Infiniti

B2552 Infiniti Code - Intelligent Key

Quick Answer

The Diagnostic Trouble Code (DTC) B2552 Intelligent Key unit internal malfunction judges NG by self-detecting the Intelligent Key unit internal malfunction. Common causes include Faulty Intelligent Key Unit. 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: B2552 Infiniti indicates Intelligent Key.
Common causes: Common causes include Faulty Intelligent Key Unit.
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 2,437

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 B2552 Infiniti Description

The Diagnostic Trouble Code (DTC) B2552 Intelligent Key unit internal malfunction judges NG by self-detecting the Intelligent Key unit internal malfunction. If this DTC is displayed, replace the Intelligent Key unit and perform the specified registration procedure.

OBDII Code B2552 Infiniti - Intelligent Key - AutoCodes.com — B2552 Infiniti Code - Intelligent Key

What does this mean?

What are the Possible Causes of the DTC B2552 Infiniti?

Faulty Intelligent Key Unit

How to Fix the DTC B2552 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 B2552 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 B2552 Infiniti code?

Need more information on how to fix the B2552 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 B2552 Infiniti Code

1. What does the OBDII code B2552 for Infiniti Intelligent Key mean?

The B2552 code indicates a problem with the intelligent key system in an Infiniti vehicle.

2. What are common symptoms of OBDII code B2552 in an Infiniti?

Common symptoms include issues with starting the vehicle, the key not being recognized, and the inability to lock or unlock the car using the key fob.

3. What are possible causes of the B2552 code in an Infiniti?

Potential causes include a faulty intelligent key, a dead key fob battery, a malfunctioning keyless entry system, or a problem with the vehicle's immobilizer system.

4. How can I diagnose the B2552 code for the Infiniti Intelligent Key?

Diagnosis typically involves checking the key fob battery, inspecting the key for physical damage, testing the keyless entry system, and ensuring the immobilizer system is functioning properly.

5. How can I repair the B2552 code on my Infiniti due to an issue with the intelligent key?

Repair options may include replacing the key fob battery, reprogramming the key fob, repairing or replacing the intelligent key, or addressing any underlying issues with the vehicle's security system.

6. Can I fix the B2552 code in my Infiniti at home, or do I need to take it to a dealership?

Simple solutions like replacing the key fob battery can often be done at home. However, more complex issues may require professional diagnosis and repair at a dealership or by a qualified automotive technician.

7. How important is it to address the B2552 code in my Infiniti promptly?

Addressing the B2552 code promptly is important to ensure the proper functioning of the vehicle's keyless entry and immobilizer systems, which are essential for security and convenience.

8. Is the B2552 code specific to certain models of Infiniti vehicles?

The B2552 code related to the intelligent key system can potentially affect various models of Infiniti vehicles equipped with keyless entry and push-button start features.

9. Can a malfunctioning intelligent key cause other issues in my Infiniti besides triggering the B2552 code?

Yes, a malfunctioning intelligent key can potentially cause other issues such as intermittent starting problems, inability to lock or unlock the vehicle, or triggering additional error codes related to the keyless entry system.

10. How can I prevent future occurrences of the B2552 code in my Infiniti?

To prevent future instances of the B2552 code, it is advisable to regularly check and replace key fob batteries, handle intelligent keys with care, and address any warning signs of key or keyless entry system issues promptly.