AutoCodes – Mitsubishi – B1B05 Mitsubishi

B1B05 Mitsubishi Code - Driver Airbag Squib 2 Circuit 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 Driver Airbag Squib 2, Driver Airbag Squib 2 harness is open or shorted, Driver Airbag Squib 2 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: B1B05 Mitsubishi indicates Driver Airbag Squib 2 Circuit High.
Common causes: Common causes include Faulty Driver Airbag Squib 2, Driver Airbag Squib 2 harness is open or shorted, Driver Airbag Squib 2 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 2,337

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 14, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1B05 Mitsubishi 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 SRS Load Tool Adaptor provides a test point as well as a method for opening the shorting bar connections within the harness connector. The Clockspring is part of the Steering Column Control Module (SCCM). The SCCM includes the steering column shroud, the Steering Angle Sensor (SAS), the Clockspring, the Multi-function Switch, a Steering Column Power Tilt and Telescope Switch (if equipped), and a trim cover. The SCCM is replaced as an entire assembly. 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 B1B05 Mitsubishi - Driver Airbag Squib 2 Circuit High - AutoCodes.com — B1B05 Mitsubishi Code - Driver Airbag Squib 2 Circuit High

What does this mean?

What are the Possible Causes of the DTC B1B05 Mitsubishi?

Faulty Driver Airbag Squib 2
Driver Airbag Squib 2 harness is open or shorted
Driver Airbag Squib 2 circuit poor electrical connection
Faulty Driver Airbag
Faulty Steering Comun Control Module (Clockspring)
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC B1B05 Mitsubishi?

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 B1B05 Mitsubishi 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 B1B05 Mitsubishi code?

Need more information on how to fix the B1B05 Mitsubishi code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1B05 Mitsubishi 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 B1B05 Mitsubishi Code

1. What are the common symptoms of OBDII code B1B05 Mitsubishi (Driver Airbag Squib 2 Circuit High)?

- The common symptoms include the airbag warning light illuminating on the dashboard and the driver airbag system potentially becoming inoperative.

2. What are the possible causes of OBDII code B1B05 Mitsubishi?

- The code B1B05 Mitsubishi typically indicates a high resistance or open circuit in the Driver Airbag Squib 2 circuit, which can be caused by faulty wiring, a defective airbag squib, or a bad connection.

3. How serious is OBDII code B1B05 Mitsubishi?

- This code is considered serious as it involves the driver airbag system, which is a critical safety component in the vehicle. It is important to address this issue promptly to ensure the proper functioning of the airbag in the event of a collision.

4. Can I continue driving with OBDII code B1B05 Mitsubishi present?

- It is not recommended to drive the vehicle with this code active, as it may indicate a malfunction in the driver airbag system. Driving with a faulty airbag system can pose a safety risk in the event of an accident.

5. How can I diagnose and repair OBDII code B1B05 Mitsubishi?

- Diagnosis typically involves using a diagnostic scanner to retrieve the fault codes and inspecting the wiring and connections related to the Driver Airbag Squib 2 circuit. Repair may involve repairing or replacing damaged wiring, fixing poor connections, or replacing the airbag squib.

6. Is it possible to reset OBDII code B1B05 Mitsubishi without fixing the underlying issue?

- While clearing the fault code may temporarily turn off the warning light, the underlying issue causing the code will persist. It is crucial to address the root cause of the problem to ensure the proper functioning of the driver airbag system.

7. Can a DIY enthusiast repair OBDII code B1B05 Mitsubishi at home?

- Repairing OBDII code B1B05 Mitsubishi may require specialized knowledge and tools due to the safety-critical nature of the driver airbag system. It is recommended to seek assistance from a qualified mechanic or technician for proper diagnosis and repair.

8. How much does it typically cost to repair OBDII code B1B05 Mitsubishi?

- The cost of repairing OBDII code B1B05 Mitsubishi can vary depending on the specific cause of the issue and the labor rates in your area. It may involve costs for diagnosis, parts replacement, and labor, so it is advisable to get a quote from a professional technician.

9. Are there any safety precautions to consider when dealing with OBDII code B1B05 Mitsubishi?

- When working on the driver airbag system related to this code, it is crucial to disconnect the vehicle's battery and wait for a specified time to discharge any stored energy to prevent accidental airbag deployment.

10. How often should I have the driver airbag system checked to prevent OBDII code B1B05 Mitsubishi from occurring?

- It is recommended to have the driver airbag system and related components inspected during routine maintenance or whenever you notice any issues with the airbag warning light to prevent potential faults like OBDII code B1B05 Mitsubishi.