AutoCodes – Jeep – B1B12 Jeep

B1B12 Jeep Code - Driver Knee Bolster Squib Circuit Open

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 Knee Bolster Squib, Driver Knee Bolster Squib harness is open or shorted, Driver Knee Bolster Squib 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: B1B12 Jeep indicates Driver Knee Bolster Squib Circuit Open.
Common causes: Common causes include Faulty Driver Knee Bolster Squib, Driver Knee Bolster Squib harness is open or shorted, Driver Knee Bolster Squib 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,282

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B1B12 Jeep 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 Adaptor provides a test point as well as a method for opening the shorting bar connections within the harness connector. The ORC Module 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 B1B12 Jeep - Driver Knee Bolster Squib Circuit Open - AutoCodes.com — B1B12 Jeep Code - Driver Knee Bolster Squib Circuit Open

What does this mean?

What are the Possible Causes of the DTC B1B12 Jeep?

Faulty Driver Knee Bolster Squib
Driver Knee Bolster Squib harness is open or shorted
Driver Knee Bolster Squib circuit poor electrical connection
Faulty Driver Knee Bolster Airbag
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC B1B12 Jeep?

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 B1B12 Jeep 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 B1B12 Jeep code?

Need more information on how to fix the B1B12 Jeep code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1B12 Jeep 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 B1B12 Jeep Code

1. What are common symptoms of the OBDII code B1B12 for Jeep, titled Driver Knee Bolster Squib Circuit Open?

Common symptoms include the airbag warning light staying illuminated on the dashboard, the airbag system not functioning properly, and potential issues with the vehicle's safety features.

2. What are possible causes of the B1B12 OBDII code in a Jeep related to the Driver Knee Bolster Squib Circuit Open?

The code B1B12 can be triggered by a variety of issues, including a faulty squib circuit in the driver knee bolster, damaged wiring or connectors in the circuit, or a malfunctioning airbag control module.

3. How can I diagnose the B1B12 OBDII code in my Jeep related to the Driver Knee Bolster Squib Circuit Open?

Diagnosing the B1B12 code typically involves using an OBDII scanner to retrieve the specific fault code, inspecting the wiring and connectors associated with the driver knee bolster squib circuit, and testing the components for proper functionality.

4. Is it safe to drive my Jeep with the B1B12 OBDII code related to the Driver Knee Bolster Squib Circuit Open?

It is not recommended to drive the vehicle with the B1B12 code present, as it indicates a potential issue with the airbag system, which could compromise the safety of the driver and passengers in the event of a collision.

5. How can I repair the B1B12 OBDII code in my Jeep for the Driver Knee Bolster Squib Circuit Open?

Repairing the B1B12 code may involve replacing the driver knee bolster squib, repairing or replacing damaged wiring or connectors, or resetting the airbag control module after addressing the underlying issue.

6. Can I reset the OBDII code B1B12 in my Jeep related to the Driver Knee Bolster Squib Circuit Open myself?

While you can attempt to clear the code using an OBDII scanner, it is important to first diagnose and address the root cause of the issue to prevent the code from reoccurring and ensure the proper functioning of the airbag system.

7. How much does it typically cost to repair the B1B12 OBDII code in a Jeep for the Driver Knee Bolster Squib Circuit Open?

The cost of repairing the B1B12 code can vary depending on the specific issue causing the fault, the labor rates of the repair shop, and the cost of any replacement parts needed. It is recommended to obtain quotes from different shops for an accurate estimate.

8. Are there any safety precautions I should take when working on the airbag system to address the B1B12 OBDII code in my Jeep?

When working on the airbag system to resolve the B1B12 code, it is essential to disconnect the vehicle's battery, wait for a specified time to allow any residual power to dissipate, and follow proper safety procedures outlined in the vehicle's service manual to prevent accidental airbag deployment.

9. What are the potential risks of ignoring the B1B12 OBDII code in my Jeep related to the Driver Knee Bolster Squib Circuit Open?

Ignoring the B1B12 code can pose serious safety risks, as it indicates a fault in the airbag system that may prevent the airbags from deploying correctly in the event of a collision, increasing the likelihood of injury to the driver and passengers.

10. Can a DIY enthusiast with basic automotive knowledge repair the B1B12 OBDII code in a Jeep related to the Driver Knee Bolster Squib Circuit Open?

While some DIY enthusiasts may have the skills to diagnose and repair the B1B12 code, working on the airbag system requires precision and caution. It is recommended to consult a professional mechanic or specialized technician with experience in airbag system repair to ensure the issue is properly addressed.