AutoCodes – RAM – B1C49 RAM

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

Quick Answer

When powered, the Occupant Restraint Controller (ORC) sends a test current to the squibs to verify the integrity of the squib and wiring. Common causes include Faulty 1st Row Passenger Retractor Tensioner, 1st Row Passenger Retractor Tensioner harness is open or shorted, 1st Row Passenger Retractor Tensioner 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: B1C49 RAM indicates 1st Row Passenger Retractor Tensioner Circuit Open.
Common causes: Common causes include Faulty 1st Row Passenger Retractor Tensioner, 1st Row Passenger Retractor Tensioner harness is open or shorted, 1st Row Passenger Retractor Tensioner 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 450

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 Aug 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1C49 RAM Description

When powered, the Occupant Restraint Controller (ORC) sends a test current to the squibs to verify the integrity of the squib and wiring. These circuits are maintained in a floating configuration at the module (connected to neither power nor ground) as protection against inadvertent deployment. The use of the Supplemental Restraints System (SRS) Load Tool Adapter provides a test point as well as a method for opening the shorting bar connections within the harness connector. The ORC sends out a 40 mA diagnostic current on each squib voltage supply circuit at power up and every 500 ms thereafter while the ignition is in on. The module then monitors the data return wire to determine the state of the circuit.

OBDII Code B1C49 RAM - 1st Row Passenger Retractor Tensioner Circuit Open - AutoCodes.com — B1C49 RAM Code - 1st Row Passenger Retractor Tensioner Circuit Open

What does this mean?

What are the Possible Causes of the DTC B1C49 RAM?

Faulty 1st Row Passenger Retractor Tensioner
1st Row Passenger Retractor Tensioner harness is open or shorted
1st Row Passenger Retractor Tensioner circuit poor electrical connection
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC B1C49 RAM?

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 B1C49 RAM 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 B1C49 RAM code?

Need more information on how to fix the B1C49 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1C49 RAM code diagnosed by a professional: Find a repair shop in your area

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.