Engine-CodesRAM – B1C49 RAM

B1C49 RAM Code - 1st Row Passenger Retractor Tensioner Circuit Open

Quick Answer

The B1C49 RAM code refers to a 1st Row Passenger Retractor Tensioner Circuit Open. Common causes include Faulty wiring or electrical connections in the retractor tensioner system, Blown fuse related to the retractor tensioner circuit, Malfunctioning retractor tensioner mechanism. 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
B1C49 RAM indicates 1st Row Passenger Retractor Tensioner Circuit Open.
Common causes
Common causes include Faulty wiring or electrical connections in the retractor tensioner system, Blown fuse related to the retractor tensioner circuit, Malfunctioning retractor tensioner mechanism.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code B1C49 RAM Description

The B1C49 RAM code refers to a 1st Row Passenger Retractor Tensioner Circuit Open. In simpler terms, this means that there is an issue with the retractor tensioner system in the front passenger seat of the vehicle. The retractor tensioner is a crucial safety component that is responsible for tightening the seatbelt in the event of a crash, helping to secure the passenger in place and reduce the risk of injury.

OBDII Code B1C49 RAM - 1st Row Passenger Retractor Tensioner Circuit Open
B1C49 RAM Code - 1st Row Passenger Retractor Tensioner Circuit Open

Common Causes of B1C49 RAM

  1. Faulty wiring or electrical connections in the retractor tensioner system.
  2. Blown fuse related to the retractor tensioner circuit.
  3. Malfunctioning retractor tensioner mechanism.
  4. Issues with the airbag control module.
  5. Impact or damage to the passenger seatbelt system.

Symptoms of B1C49 RAM

  1. Airbag warning light illuminated on the dashboard.
  2. Seatbelt warning light flashing or staying on.
  3. Passenger seatbelt not retracting properly.
  4. Failure of the passenger seatbelt to tighten during sudden braking or acceleration.
  5. Vehicle failing a safety inspection due to retractor tensioner system issue.

How to Fix B1C49 RAM

  1. Diagnose the issue using a diagnostic scanner to retrieve the specific fault code.
  2. Inspect the wiring and electrical connections in the retractor tensioner system for any damage or loose connections.
  3. Check and replace any blown fuses related to the retractor tensioner circuit.
  4. Test the retractor tensioner mechanism for proper functionality and replace if necessary.
  5. Reset the airbag control module and clear the fault code to ensure proper operation of the system.

Cost to Fix B1C49 RAM

The cost of repairing a B1C49 RAM code can vary depending on the specific cause of the issue and the make and model of the vehicle. In general, the repair costs for this issue can range from $200 to $500, including parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Additionally, rates may be higher at dealerships or in metropolitan areas, while independent shops may offer lower prices. To get an accurate estimate, it is recommended to consult with a professional mechanic or repair shop in your area.

When is the Code Detected?

This Diagnostic Trouble Code (DTC) sets when the Occupant Restraint Controller (ORC) detects an open on the squib circuit for more than 2.5 seconds. This DTC transitions from active to stored when the module sees a recovery from an open condition for greater than 2.5 seconds.

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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.

Frequently Asked Questions about B1C49 RAM Code

1. What are common symptoms of OBDII code B1C49 related to the 1st Row Passenger Retractor Tensioner Circuit Open?

The common symptoms include the airbag warning light illuminated on the dashboard and potential non-deployment of the passenger-side airbag in the event of a collision.

2. What could cause the OBDII code B1C49 indicating an open circuit in the 1st Row Passenger Retractor Tensioner?

Possible causes of this code include damaged wiring, a loose connection, a faulty retractor tensioner, or issues with the airbag control module.

3. How can I diagnose the OBDII code B1C49 RAM for the 1st Row Passenger Retractor Tensioner Circuit Open?

Diagnosis involves using a scan tool to read the fault codes, inspecting the wiring and connectors for damage, testing the retractor tensioner, and checking the airbag control module for any faults.

4. What are the safety implications of OBDII code B1C49 related to the 1st Row Passenger Retractor Tensioner Circuit Open?

The safety implications are significant, as the open circuit may prevent the passenger-side airbag from deploying in a crash, potentially increasing the risk of injury to the passenger.

5. Can I continue driving with the OBDII code B1C49 indicating an open circuit in the 1st Row Passenger Retractor Tensioner?

It is not recommended to continue driving with this code present, as the passenger-side airbag may not function correctly in the event of an accident, compromising passenger safety.

6. How can I repair the 1st Row Passenger Retractor Tensioner Circuit Open issue indicated by OBDII code B1C49?

Repair may involve repairing or replacing damaged wiring, securing loose connections, replacing the retractor tensioner if faulty, or addressing any issues with the airbag control module.

7. Is it possible to reset the OBDII code B1C49 related to the 1st Row Passenger Retractor Tensioner Circuit Open?

Clearing the code with a scan tool may temporarily turn off the warning light, but if the underlying issue is not resolved, the code is likely to reappear.

8. How critical is it to address the OBDII code B1C49 RAM for the 1st Row Passenger Retractor Tensioner Circuit Open promptly?

It is crucial to address this code promptly to ensure the proper functioning of the passenger-side airbag and maintain overall vehicle safety in the event of a collision.

9. Can a DIY enthusiast fix the OBDII code B1C49 indicating an open circuit in the 1st Row Passenger Retractor Tensioner?

While some basic troubleshooting steps can be performed by a DIY enthusiast, addressing the underlying issue effectively may require specialized knowledge and tools, so professional assistance is recommended.

10. How can I prevent the recurrence of OBDII code B1C49 related to the 1st Row Passenger Retractor Tensioner Circuit Open?

Regularly inspecting the airbag system, ensuring proper maintenance of the retractor tensioner and wiring, and promptly addressing any warning lights or issues can help prevent the recurrence of this code.

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