AutoCodesRAM – B1B2B RAM

B1B2B RAM Code - 1st Row Driver Seat Belt Pretensioner Circuit Shorted Together

Quick Answer

The Occupant Restraint Controller (ORC) monitors the 1st Row Driver Seat Belt Pretensioner Circuit. Common causes include Faulty Driver Seat Belt Pretensioner, Driver Seat Belt Pretensioner harness is open or shorted, Driver Seat Belt Pretensioner 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
B1B2B RAM indicates 1st Row Driver Seat Belt Pretensioner Circuit Shorted Together.
Common causes
Common causes include Faulty Driver Seat Belt Pretensioner, Driver Seat Belt Pretensioner harness is open or shorted, Driver Seat Belt Pretensioner 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 849
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 16, 2019
💬 Need more help? Ask Coddy for instant answers — it's free!

Code B1B2B RAM Description

The Occupant Restraint Controller (ORC) monitors the 1st Row Driver Seat Belt Pretensioner Circuit. The OBDII code sets when the ORC has detected low resistance between the Driver Seat Belt Tensioner circuits.
OBDII Code B1B2B RAM - 1st Row Driver Seat Belt Pretensioner Circuit Shorted Together - AutoCodes.com
B1B2B RAM Code - 1st Row Driver Seat Belt Pretensioner Circuit Shorted Together

What are the Possible Causes of the DTC B1B2B RAM?

  • Faulty Driver Seat Belt Pretensioner
  • Driver Seat Belt Pretensioner harness is open or shorted
  • Driver Seat Belt Pretensioner circuit poor electrical connection
  • Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC B1B2B 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 B1B2B 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 B1B2B RAM code?

Need more information on how to fix the B1B2B RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1B2B 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 B1B2B RAM Code

1. What are the common symptoms of OBDII code B1B2B RAM?

The common symptoms of this code include the airbag warning light illuminating on the dashboard and potential issues with the driver's seat belt pretensioner.

2. What does the OBDII code B1B2B RAM indicate?

This code indicates a short circuit in the 1st row driver seat belt pretensioner circuit, meaning there is an electrical issue affecting the seat belt mechanism.

3. What are the possible causes of OBDII code B1B2B RAM?

Possible causes of this code include a faulty seat belt pretensioner, damaged wiring or connectors in the circuit, or a malfunctioning airbag control module.

4. How can I troubleshoot and repair OBDII code B1B2B RAM?

To troubleshoot this code, you can start by inspecting the wiring and connectors for any damage, checking the seat belt pretensioner for proper functioning, and scanning the airbag control module for any related fault codes. Repair may involve replacing the faulty components or repairing the damaged wiring.

5. Is it safe to drive with OBDII code B1B2B RAM?

It is not recommended to drive with this code present, as it indicates a potential issue with the driver's seat belt pretensioner, which is a critical safety component in the event of a collision.

6. Can I reset OBDII code B1B2B RAM without fixing the underlying issue?

While you can clear the code using an OBDII scanner, it is important to address the underlying issue causing the fault code to prevent any potential safety risks and ensure the proper functioning of the seat belt pretensioner.

7. How much does it typically cost to repair OBDII code B1B2B RAM?

The cost of repairing this code can vary depending on the specific cause of the issue, the extent of the damage, and the labor rates of the repair shop. It is recommended to consult a professional for an accurate estimate.

8. Can a DIY enthusiast fix OBDII code B1B2B RAM?

Depending on your level of automotive expertise and access to the necessary tools, a DIY enthusiast may be able to troubleshoot and repair this code. However, dealing with airbag and seat belt components requires caution and proper knowledge, so it is crucial to proceed with care.

9. How can I prevent OBDII code B1B2B RAM from occurring again?

To prevent this code from recurring, it is important to perform regular maintenance checks on the seat belt pretensioner system, ensure all electrical connections are secure, and address any issues promptly to avoid potential shorts in the circuit.

10. Will OBDII code B1B2B RAM affect the vehicle's overall performance?

This code is related to the safety systems of the vehicle and may not directly impact its overall performance. However, ignoring the issue can compromise the effectiveness of the seat belt pretensioner in the event of a collision.

Discuss the causes and fixes for B1B2B RAM OBDII Code

Code B1B2B RAM comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play