AutoCodes – Mitsubishi – B1B19 Mitsubishi

B1B19 Mitsubishi Code - Left Side Curtain Squib 1 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 Left Side Curtain Squib 1, Left Side Curtain Squib 1 harness is open or shorted, Left Side Curtain Squib 1 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: B1B19 Mitsubishi indicates Left Side Curtain Squib 1 Circuit High.
Common causes: Common causes include Faulty Left Side Curtain Squib 1, Left Side Curtain Squib 1 harness is open or shorted, Left Side Curtain Squib 1 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 1,038

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 15, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1B19 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 Supplemental Restraint System (SRS) Load Tool Adapter 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 B1B19 Mitsubishi - Left Side Curtain Squib 1 Circuit High - AutoCodes.com — B1B19 Mitsubishi Code - Left Side Curtain Squib 1 Circuit High

What does this mean?

What are the Possible Causes of the DTC B1B19 Mitsubishi?

Faulty Left Side Curtain Squib 1
Left Side Curtain Squib 1 harness is open or shorted
Left Side Curtain Squib 1 circuit poor electrical connection
Faulty Left Side Curtain Airbag
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC B1B19 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 B1B19 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 B1B19 Mitsubishi code?

Need more information on how to fix the B1B19 Mitsubishi code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1B19 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 B1B19 Mitsubishi Code

1. What are the common symptoms of OBDII code B1B19 Mitsubishi (Left Side Curtain Squib 1 Circuit High)?

- The common symptoms include the airbag warning light being illuminated on the dashboard and a potential loss of functionality in the left side curtain airbag.

2. What are the possible causes of OBDII code B1B19 Mitsubishi?

- Common causes of this code include a faulty left side curtain airbag squib (inflator), damaged wiring or connectors in the airbag system, or an issue with the airbag control module.

3. How serious is OBDII code B1B19 Mitsubishi?

- This code indicates a potential issue with the left side curtain airbag system, which is a critical safety component. It is important to address this code promptly to ensure the airbag system functions correctly in the event of a collision.

4. Can I continue driving with OBDII code B1B19 Mitsubishi active?

- It is not recommended to drive with this code active, as it indicates a potential problem with the left side curtain airbag system. Continuing to drive with a faulty airbag system can compromise safety in the event of an accident.

5. How can I diagnose and repair OBDII code B1B19 Mitsubishi?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the code and then inspecting the left side curtain airbag system for issues. Repair may involve replacing the faulty squib, repairing damaged wiring, or addressing other component failures.

6. Can I reset OBDII code B1B19 Mitsubishi without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is not recommended to reset the code without addressing the root cause. The issue may persist, compromising the functionality of the airbag system.

7. Are there any DIY repair tips for OBDII code B1B19 Mitsubishi?

- DIY repair for this code is not recommended due to the critical nature of the airbag system. It is best to have the issue diagnosed and repaired by a qualified automotive technician to ensure proper functionality and safety.

8. How much does it typically cost to repair OBDII code B1B19 Mitsubishi?

- Repair costs for this code can vary depending on the specific issue and the labor rates of the repair facility. Costs may include parts replacement, labor charges, and diagnostic fees.

9. Can a faulty left side curtain airbag impact the overall vehicle safety?

- Yes, a faulty left side curtain airbag can impact the overall safety of the vehicle, especially in the event of a side impact collision. It is important to address any airbag system issues promptly to ensure proper functionality.

10. Is OBDII code B1B19 Mitsubishi a common issue in Mitsubishi vehicles?

- While the prevalence of this specific code may vary, issues with airbag systems, including squib circuits, can occur in Mitsubishi vehicles and other car makes. It is essential to address airbag system problems promptly for safety reasons.