AutoCodesRAM – B1C28 RAM

B1C28 RAM Code - Left Side Seat Thorax Squib 1 High

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 Left Thorax Side Air Bag, Left Thorax Side Air Bag harness is open or shorted, Left Thorax Side Air Bag 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
B1C28 RAM indicates Left Side Seat Thorax Squib 1 High.
Common causes
Common causes include Faulty Left Thorax Side Air Bag, Left Thorax Side Air Bag harness is open or shorted, Left Thorax Side Air Bag 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 677
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 26, 2019
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Code B1C28 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 Restraint System (SRS) Load Tool 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 on.
OBDII Code B1C28 RAM - Left Side Seat Thorax Squib 1 High - AutoCodes.com
B1C28 RAM Code - Left Side Seat Thorax Squib 1 High

What are the Possible Causes of the DTC B1C28 RAM?

  • Faulty Left Thorax Side Air Bag
  • Left Thorax Side Air Bag harness is open or shorted
  • Left Thorax Side Air Bag circuit poor electrical connection
  • Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC B1C28 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 B1C28 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 B1C28 RAM code?

Need more information on how to fix the B1C28 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1C28 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 B1C28 RAM Code

1. What are the common symptoms of OBDII code B1C28 RAM titled Left Side Seat Thorax Squib 1 High?

- The common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the left side seat airbag system.

2. What are the possible causes of OBDII code B1C28 RAM titled Left Side Seat Thorax Squib 1 High?

- Possible causes may include a faulty seat thorax squib (airbag), wiring issues in the left side seat airbag system, or a problem with the airbag control module.

3. How can I diagnose the OBDII code B1C28 RAM related to the Left Side Seat Thorax Squib 1 High?

- Diagnosis involves using an OBDII scanner to retrieve the specific code, inspecting the left side seat airbag components, and checking for any visible damage or loose connections.

4. Can I continue driving my vehicle with OBDII code B1C28 RAM active?

- It is not recommended to drive the vehicle with an active airbag fault code, as it may compromise the safety of the airbag system in the event of a collision.

5. How should I repair OBDII code B1C28 RAM related to the Left Side Seat Thorax Squib 1 High?

- The repair typically involves replacing the faulty seat thorax squib, repairing any damaged wiring, or resetting the airbag system after addressing the issue.

6. Are there any safety concerns associated with OBDII code B1C28 RAM?

- Yes, there are safety concerns as the code indicates a potential issue with the left side seat airbag, which could affect its functionality during an accident.

7. Can I reset the OBDII code B1C28 RAM without fixing the underlying problem?

- It is not recommended to reset the code without addressing the underlying issue, as it may lead to continued safety risks and potential airbag system malfunctions.

8. How much does it cost to repair OBDII code B1C28 RAM related to the Left Side Seat Thorax Squib 1 High?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve parts and labor expenses associated with replacing components or fixing wiring.

9. Are there any recalls or technical service bulletins related to OBDII code B1C28 RAM?

- It is advisable to check with the vehicle manufacturer or authorized dealerships for any recalls or technical service bulletins related to this specific OBDII code to address potential known issues.

10. Can a DIY enthusiast fix OBDII code B1C28 RAM or should I seek professional help?

- While some DIY enthusiasts may have the skills to address the issue, dealing with airbag systems requires caution and expertise, so it is recommended to seek professional help to ensure proper diagnosis and repair.

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