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Engine-Codes – Generic – B1C2C

B1C2C Code - Right Side Seat Thorax Squib 1 High

Quick Answer

The diagnostic code B1C2C indicates an issue with the right side seat thorax squib 1 in the vehicle. Common causes include Loose or corroded electrical connections in the seat thorax squib circuit, Faulty seat thorax squib 1 on the right side, Wiring harness damage or short circuit. 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
B1C2C indicates Right Side Seat Thorax Squib 1 High.
Common causes
Common causes include Loose or corroded electrical connections in the seat thorax squib circuit, Faulty seat thorax squib 1 on the right side, Wiring harness damage or short circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code B1C2C Description

The diagnostic code B1C2C indicates an issue with the right side seat thorax squib 1 in the vehicle. A squib is a type of pyrotechnic device used in automotive safety systems, such as airbags. The seat thorax squib is responsible for deploying the side airbag in the event of a collision or impact to protect the occupants of the vehicle. When the code shows a "high" reading, it means that there is an abnormally high resistance or voltage detected in the circuit of the seat thorax squib 1 on the right side.

OBDII Code B1C2C - Right Side Seat Thorax Squib 1 High
B1C2C Code - Right Side Seat Thorax Squib 1 High

Common Causes of B1C2C

  1. Loose or corroded electrical connections in the seat thorax squib circuit
  2. Faulty seat thorax squib 1 on the right side
  3. Wiring harness damage or short circuit
  4. Faulty airbag control module
  5. Vehicle impact or collision that damaged the seat thorax squib system

Symptoms of B1C2C

  1. Airbag warning light illuminated on the dashboard
  2. Side airbag system failure warning message
  3. Side airbag not deploying during a collision
  4. Diagnostic trouble code B1C2C stored in the vehicle's computer system

How to Fix B1C2C

  1. Begin by disconnecting the vehicle's battery to prevent accidental deployment of the airbag system.
  2. Inspect the electrical connections and wiring harness for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the seat thorax squib 1 on the right side for proper functionality. Replace if it is found to be faulty.
  4. Clear the diagnostic trouble code B1C2C from the vehicle's computer system using a diagnostic scanner.
  5. Reconnect the battery and test the airbag system to ensure proper operation.

Cost to Fix B1C2C

The cost of repairing a right side seat thorax squib 1 high issue can vary depending on the specific cause of the problem and the vehicle's make and model. In general, the cost of parts for this repair can range from $100 to $500, with labor costs adding an additional $100 to $300. Overall, the total repair cost can be anywhere from $200 to $800. It is recommended to consult a professional mechanic for a more accurate estimate based on the specific circumstances of the vehicle.

When is the Code Detected?

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

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Code B1C2C Information for Specific Makes

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 B1C2C Code

1. What does OBDII code B1C2C mean?

Code B1C2C indicates a high resistance or open circuit in the Right Side Seat Thorax Airbag (Squib 1) circuit, which is part of the vehicle’s supplemental restraint system (SRS).

2. What are the common symptoms of code B1C2C?

The most common symptoms include an illuminated airbag warning light on the dashboard and the potential deactivation of the right side seat thorax airbag.

3. What causes code B1C2C to trigger?

Common causes include a damaged or corroded wiring harness, a loose or faulty connector, a malfunctioning airbag module, or a defective right side seat thorax airbag.

4. Can I still drive my vehicle with code B1C2C?

While the vehicle may still be drivable, the airbag system may not function properly in the event of a collision, posing a safety risk.

5. How is code B1C2C diagnosed?

A technician will use a scan tool to confirm the code, inspect the wiring and connectors in the affected circuit, and test the resistance of the airbag squib to identify the fault.

6. How can I fix code B1C2C?

Repairs may involve replacing damaged wiring, cleaning or reconnecting loose connectors, or replacing the right side seat thorax airbag or associated module if defective.

7. Can a weak battery cause code B1C2C?

Yes, a weak or failing battery can cause voltage irregularities that may trigger airbag-related codes, including B1C2C.

8. How much does it cost to fix code B1C2C?

Repair costs vary depending on the issue, but they can range from $100 for minor wiring repairs to $1,000 or more if the airbag or control module needs replacement.

9. Is code B1C2C covered under warranty?

Airbag system repairs may be covered under the manufacturer’s warranty or an extended warranty, depending on your vehicle’s age and mileage.

10. Can I clear the B1C2C code without fixing it?

Clearing the code without addressing the underlying issue may temporarily turn off the airbag light, but the code will likely return and the airbag system may remain compromised.

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