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Engine-Codes – Generic – B0054

B0054 Code - Second Row Center Seatbelt Sensor

Quick Answer

The B0054 diagnostic trouble code refers to an issue with the Second Row Center Seatbelt Sensor in the vehicle. Common causes include Faulty seatbelt sensor in the second row center seat, Damaged wiring or connectors leading to the sensor, Corrosion or contamination affecting the sensor's functionality. 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
B0054 indicates Second Row Center Seatbelt Sensor.
Common causes
Common causes include Faulty seatbelt sensor in the second row center seat, Damaged wiring or connectors leading to the sensor, Corrosion or contamination affecting the sensor's functionality.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code B0054 Description

The B0054 diagnostic trouble code refers to an issue with the Second Row Center Seatbelt Sensor in the vehicle. This sensor is responsible for detecting whether the seatbelt in the second row center seat is properly engaged or not. If the sensor malfunctions or fails to detect the seatbelt status accurately, it can lead to safety concerns for passengers in that seating position. This code is usually triggered when there is a problem with the sensor's circuit or wiring, which can compromise the overall effectiveness of the vehicle's safety system. If left unaddressed, this issue can potentially result in the seatbelt not being properly detected in the event of a collision, increasing the risk of injury for the occupant in that seat.

OBDII Code B0054 - Second Row Center Seatbelt Sensor
B0054 Code - Second Row Center Seatbelt Sensor

Common Causes of B0054

  1. Faulty seatbelt sensor in the second row center seat.
  2. Damaged wiring or connectors leading to the sensor.
  3. Corrosion or contamination affecting the sensor's functionality.
  4. Electronic control module (ECM) issues related to the sensor circuit.
  5. Impact or physical damage to the sensor or surrounding components.

Symptoms of B0054

  1. Airbag warning light illuminated on the dashboard.
  2. Audible warning chime indicating a seatbelt issue.
  3. Second-row center seatbelt not retracting or locking properly.
  4. Inability to engage the seatbelt in the second-row center seat.
  5. Inconsistent activation of airbags during a collision.

How to Fix B0054

  1. Begin by conducting a thorough inspection of the second-row center seatbelt sensor and its wiring for any visible damage or corrosion.
  2. Test the sensor's functionality using a diagnostic scan tool to pinpoint the exact issue.
  3. Replace the faulty sensor if it is determined to be the cause of the problem.
  4. Repair or replace any damaged wiring or connectors associated with the sensor.
  5. Clear the diagnostic trouble code from the vehicle's system and perform a test drive to ensure the issue has been resolved.

Cost to Fix B0054

The cost of repairing a Second Row Center Seatbelt Sensor issue can vary depending on the extent of the problem and the specific components that need to be replaced. On average, the repair cost for this issue can range from $100 to $300, including parts and labor. However, it's essential to note that diagnostic time and labor rates at auto repair shops can differ based on various factors, so it's recommended to obtain a personalized estimate from a professional technician.

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Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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.

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