Engine-CodesDodge – B1C29 Dodge

B1C29 Dodge Code - Left Side Seat Thorax Squib 1 Open

Quick Answer

The B1C29 diagnostic trouble code for Dodge vehicles indicates that there is an issue with the left side seat thorax squib 1, which refers to the airbag system in the driver's side seat. Common causes include Wiring or connector damage or corrosion, Faulty seat thorax squib 1, Impact or collision that damaged the airbag system. 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
B1C29 Dodge indicates Left Side Seat Thorax Squib 1 Open.
Common causes
Common causes include Wiring or connector damage or corrosion, Faulty seat thorax squib 1, Impact or collision that damaged the airbag system.
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 09, 2024
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Code B1C29 Dodge Description

The B1C29 diagnostic trouble code for Dodge vehicles indicates that there is an issue with the left side seat thorax squib 1, which refers to the airbag system in the driver's side seat. The "open" status of the squib means that there is an open circuit or a lack of continuity in the circuit that controls the deployment of the airbag in the event of a collision. This can pose a serious safety risk as the airbag may not deploy properly or at all, compromising the protection of the driver in case of an accident.

OBDII Code B1C29 Dodge - Left Side Seat Thorax Squib 1 Open
B1C29 Dodge Code - Left Side Seat Thorax Squib 1 Open

Common Causes of B1C29 Dodge

  1. Wiring or connector damage or corrosion
  2. Faulty seat thorax squib 1
  3. Impact or collision that damaged the airbag system
  4. Electrical issues such as a blown fuse or relay
  5. Manufacturing defects in the airbag system components

Symptoms of B1C29 Dodge

  1. Illumination of the airbag warning light on the dashboard
  2. Inoperative or malfunctioning airbag system
  3. Audible chime or warning message indicating airbag system fault
  4. Loss of continuity in the left side seat thorax squib circuit

How to Fix B1C29 Dodge

  1. Diagnose the specific cause of the open circuit in the left side seat thorax squib 1 by using a scan tool to retrieve the fault codes and inspecting the airbag system components.
  2. Check the wiring and connectors for damage, corrosion, or loose connections. Repair or replace any damaged components.
  3. Test the seat thorax squib 1 for continuity and resistance to determine if it is faulty. Replace the squib if necessary.
  4. Clear the fault codes from the vehicle's computer memory and test the airbag system to ensure proper function.
  5. Reset the airbag system and verify that the airbag warning light is no longer illuminated.

Cost to Fix B1C29 Dodge

The cost of repairing a left side seat thorax squib 1 open issue can vary depending on the specific cause of the problem and the labor rates at the auto repair shop. In general, the cost of parts for replacing a faulty seat thorax squib 1 can range from $200 to $500, while the labor costs can be around $100 to $200. Overall, the total repair cost for addressing this code can range from $300 to $700. It is important to note that these are rough estimates, and actual costs may vary based on the vehicle's make and model, the extent of the damage, and the shop's labor rates. It is recommended to consult with a certified mechanic to get an accurate cost estimate for the repair.

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.

Need more information about the B1C29 Dodge code?

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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 B1C29 Dodge Code

1. What are common symptoms of OBDII code B1C29 Dodge (Left Side Seat Thorax Squib 1 Open)?

- Common symptoms include the airbag warning light illuminating on the dashboard and a potential loss of functionality in the left side seat airbag system.

2. What can cause the OBDII code B1C29 Dodge to trigger?

- The code B1C29 is typically triggered when there is an open circuit detected in the left side seat thorax airbag squib 1, which could be due to wiring issues, a faulty squib, or a poor connection.

3. How serious is the OBDII code B1C29 Dodge (Left Side Seat Thorax Squib 1 Open)?

- This code indicates a potential issue with the left side seat airbag system, which could affect its ability to deploy in a crash. It is important to address this issue promptly to ensure the safety features of the vehicle are functioning properly.

4. Can I still drive my vehicle with the OBDII code B1C29 Dodge active?

- It is not recommended to drive the vehicle with an active airbag system fault code like B1C29. The safety of the airbag system may be compromised, so it is advisable to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose and repair OBDII code B1C29 Dodge at home?

- Diagnosing and repairing this code may require advanced knowledge and specialized tools. It is recommended to consult a professional mechanic or authorized service center for proper diagnosis and repair.

6. Is it safe to reset the OBDII code B1C29 Dodge and ignore the issue?

- Resetting the code without addressing the underlying problem is not a permanent solution and may pose a safety risk. It is important to have the issue diagnosed and repaired to ensure the airbag system functions correctly.

7. Are there any recalls related to the OBDII code B1C29 Dodge?

- It is advisable to check with the manufacturer or authorized dealerships for any recalls related to this specific OBDII code. Recalls are sometimes issued for airbag system-related issues.

8. How much does it typically cost to repair the OBDII code B1C29 Dodge?

- The cost of repairing OBDII code B1C29 can vary depending on the underlying cause of the issue. It is recommended to obtain a diagnostic from a professional technician to determine the exact repair cost.

9. Can OBDII code B1C29 Dodge be caused by a blown fuse?

- Yes, a blown fuse in the airbag system circuit could potentially cause the B1C29 code to trigger. It is advisable to check and replace any blown fuses before further diagnosis.

10. How long does it take to repair OBDII code B1C29 Dodge?

- The repair time for OBDII code B1C29 can vary depending on the cause of the issue and the availability of parts. It is recommended to consult with a professional technician for an accurate estimate of the repair time.

Discuss the causes and fixes for B1C29 Dodge OBDII Code

  • What is the part number to fix the B1C29 Dodge OBDII?

    • The B1C29 code refers to an open circuit in the left side seat thorax airbag (squib 1), which is part of the side airbag system built into the seat. This typically means the airbag module, wiring, or connector has an issue — not necessarily a part you can just order and swap without confirming the root cause.

      There isn't a single universal part number for this code because it depends on:

      1. Your vehicle's exact year, model, and trim.
      2. Whether the issue is with the airbag itself, the seat harness, or even just a connector under the seat.

      In many cases, this code is caused by:

      • A loose or corroded connector under the seat.
      • Damaged wiring from seat movement.
      • Faulty seat airbag module (thorax airbag).

      Before replacing any part, I recommend:

      • Disconnect the battery and check the yellow connectors under the driver’s seat.
      • Inspect for broken or pinched wires.
      • If available, scan with a more advanced scanner that can show live data from the airbag system.

      If the thorax airbag itself is bad and needs replacement, the correct part number will vary. If you can share your Dodge’s year and model, I can help look up the exact part number.