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B1B22 Mitsubishi Code - Right Side Curtain Squib 1 Circuit Open

Quick Answer

The B1B22 diagnostic trouble code for Mitsubishi indicates that there is an open circuit in the right side curtain squib 1. Common causes include Damaged wiring harness, Faulty curtain squib, Blown fuse. 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
B1B22 Mitsubishi indicates Right Side Curtain Squib 1 Circuit Open.
Common causes
Common causes include Damaged wiring harness, Faulty curtain squib, Blown fuse.
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 17, 2024
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Code B1B22 Mitsubishi Description

The B1B22 diagnostic trouble code for Mitsubishi indicates that there is an open circuit in the right side curtain squib 1. The curtain squib is a component of the vehicle's airbag system, specifically the side curtain airbags. When this code is triggered, it means that there is a fault in the circuit that controls the deployment of the right side curtain airbag in the event of a collision.

OBDII Code B1B22 Mitsubishi - Right Side Curtain Squib 1 Circuit Open
B1B22 Mitsubishi Code - Right Side Curtain Squib 1 Circuit Open

Common Causes of B1B22 Mitsubishi

  1. Damaged wiring harness
  2. Faulty curtain squib
  3. Blown fuse
  4. Problem with the airbag control module
  5. Corrosion or loose connections in the circuit

Symptoms of B1B22 Mitsubishi

  1. Airbag warning light illuminated on the dashboard
  2. Right side curtain airbag not deploying in a crash
  3. Diagnostic trouble code B1B22 stored in the vehicle's computer
  4. Loss of power to the right side curtain squib

How to Fix B1B22 Mitsubishi

  1. Begin by diagnosing the specific cause of the open circuit, using a diagnostic scanner to retrieve the trouble code and pinpoint the issue.
  2. Inspect the wiring harness for any damage, corrosion, or loose connections. Repair or replace any damaged wires as needed.
  3. Test the curtain squib to determine if it is functioning properly. Replace the squib if it is faulty.
  4. Check the fuse related to the right side curtain airbag circuit and replace if necessary.
  5. If the issue persists, inspect the airbag control module for any faults and replace if needed.

Cost to Fix B1B22 Mitsubishi

The cost of repairing a B1B22 code for a Mitsubishi can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $200 and $500 for parts and labor. Keep in mind that rates at auto repair shops can vary, so it's a good idea to get quotes from multiple shops in your area to find the best price. Additionally, the specific diagnosis time and labor rates can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate.

When is the Code Detected?

This DTC sets when the ORC detects both circuits of the same squib are open for more than 2.5 seconds. This DTC transitions from active to stored when the module sees a recovery from the open condition for greater than 2.5 seconds.

Need more information about the B1B22 Mitsubishi 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 B1B22 Mitsubishi Code

1. What are the common symptoms of OBDII code B1B22 Mitsubishi (Right Side Curtain Squib 1 Circuit Open)?

- The common symptoms include the airbag warning light illuminating on the dashboard and a potential failure of the right side curtain airbag system.

2. What are the possible causes of the B1B22 OBDII code in a Mitsubishi vehicle?

- The code B1B22 indicates a circuit open in the right side curtain squib 1, which can be caused by damaged wiring, a faulty squib (airbag inflator), or a malfunction in the airbag control module.

3. How can I diagnose the cause of the Right Side Curtain Squib 1 Circuit Open code in my Mitsubishi?

- Diagnosing the issue may require using a scan tool to retrieve the specific fault code, checking the wiring harness for any visible damage, and testing the right side curtain squib for continuity.

4. Is it safe to drive my Mitsubishi with the B1B22 OBDII code present?

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

5. How can I repair the Right Side Curtain Squib 1 Circuit Open issue in my Mitsubishi?

- Repairing the issue may involve repairing or replacing damaged wiring, replacing the right side curtain squib if faulty, or resetting the airbag control module after the repair.

6. Can I reset the OBDII code B1B22 in my Mitsubishi without fixing the underlying issue?

- While you can clear the fault code with a scan tool, it is crucial to address the underlying problem to ensure the proper function of the right side curtain airbag system.

7. Are there any safety precautions I should follow when working on the airbag system in my Mitsubishi?

- When working on the airbag system, always disconnect the battery, wait at least 10 minutes for the capacitors to discharge, and follow the manufacturer's safety procedures to avoid accidental airbag deployment.

8. How much does it typically cost to repair the Right Side Curtain Squib 1 Circuit Open issue in a Mitsubishi?

- The cost of repairing the B1B22 OBDII code can vary depending on the underlying cause, but it may range from a few hundred to a thousand dollars, including parts and labor.

9. Can a DIY enthusiast with some automotive knowledge fix the Right Side Curtain Squib 1 Circuit Open problem?

- While some DIY enthusiasts may be able to diagnose and repair simple wiring issues, working on the airbag system requires specialized knowledge and tools, so it is recommended to consult a professional technician.

10. Will the B1B22 OBDII code reset itself after the issue is fixed in my Mitsubishi?

- In most cases, after the underlying issue causing the code is repaired, you may need to use a scan tool to clear the code and reset the airbag system module for the warning light to turn off.

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