AutoCodes – Infiniti – B2557 Infiniti

B2557 Infiniti Code - Vehicle Speed

Quick Answer

The Body Control Module (BCM) receives the 2 vehicle speed signals via CAN communication. Common causes include Faulty Wheel Speed Sensor, Wheel Speed Sensor harness is open or shorted, Wheel Speed Sensor 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: B2557 Infiniti indicates Vehicle Speed.
Common causes: Common causes include Faulty Wheel Speed Sensor, Wheel Speed Sensor harness is open or shorted, Wheel Speed Sensor 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 3,220

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 B2557 Infiniti Description

The Body Control Module (BCM) receives the 2 vehicle speed signals via CAN communication. One signal is transmitted by the Unified Meter. Another signal is transmitted by the ABS actuator and electric unit (control unit). The BCM compares both signals to detect the vehicle speed.

OBDII Code B2557 Infiniti - Vehicle Speed - AutoCodes.com — B2557 Infiniti Code - Vehicle Speed

What does this mean?

What are the Possible Causes of the DTC B2557 Infiniti?

Faulty Wheel Speed Sensor
Wheel Speed Sensor harness is open or shorted
Wheel Speed Sensor circuit poor electrical connection
Faulty Unified Meter
Faulty ABS Actuator And Electric Unit (Control Unit)

How to Fix the DTC B2557 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 B2557 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 B2557 Infiniti code?

Need more information on how to fix the B2557 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2557 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 B2557 Infiniti Code

1. What is OBDII code B2557 for Infiniti vehicles related to?

The OBDII code B2557 for Infiniti vehicles is related to the Vehicle Speed Sensor Circuit.

2. What are common symptoms of OBDII code B2557 in an Infiniti vehicle?

Common symptoms of OBDII code B2557 in an Infiniti vehicle may include erratic speedometer readings, cruise control issues, and potential transmission shifting problems.

3. What are possible causes of OBDII code B2557 in an Infiniti vehicle?

Possible causes of OBDII code B2557 in an Infiniti vehicle include a faulty vehicle speed sensor, damaged wiring or connectors in the speed sensor circuit, or issues with the instrument cluster.

4. How can I diagnose OBDII code B2557 in my Infiniti vehicle?

Diagnosing OBDII code B2557 in your Infiniti vehicle involves using a scan tool to retrieve the code, checking the vehicle speed sensor and related wiring for any damage or corrosion, and testing the sensor's functionality.

5. Can I drive my Infiniti with OBDII code B2557?

It is not recommended to drive your Infiniti with OBDII code B2557, as it can lead to inaccurate speed readings and potential transmission issues. It is best to address the problem promptly.

6. How can I repair OBDII code B2557 in my Infiniti vehicle?

Repairing OBDII code B2557 in your Infiniti vehicle may involve replacing the faulty vehicle speed sensor, repairing any damaged wiring or connectors, or addressing issues with the instrument cluster.

7. Is OBDII code B2557 in an Infiniti vehicle a serious issue?

OBDII code B2557 in an Infiniti vehicle should be addressed promptly to ensure accurate speed readings and proper transmission operation. Ignoring the issue could lead to further complications.

8. Can a DIY enthusiast fix OBDII code B2557 in an Infiniti vehicle?

A DIY enthusiast with the proper tools and knowledge may be able to diagnose and repair OBDII code B2557 in an Infiniti vehicle, especially if the issue is related to a faulty speed sensor or damaged wiring.

9. How much does it cost to repair OBDII code B2557 in an Infiniti vehicle?

The cost to repair OBDII code B2557 in an Infiniti vehicle can vary depending on the exact cause of the issue and whether you choose to do the repairs yourself or take your vehicle to a professional mechanic.

10. Can OBDII code B2557 in an Infiniti vehicle affect fuel efficiency?

While OBDII code B2557 itself may not directly affect fuel efficiency, addressing the underlying issue promptly can help ensure your vehicle is operating efficiently and accurately, avoiding potential fuel consumption problems.