AutoCodes – RAM – B1B02 RAM

B1B02 RAM Code - Driver Airbag Squib 1 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 Airbag Squib 1, Driver Airbag Squib 1 harness is open or shorted, Driver Airbag 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: B1B02 RAM indicates Driver Airbag Squib 1 Circuit Open.
Common causes: Common causes include Faulty Driver Airbag Squib 1, Driver Airbag Squib 1 harness is open or shorted, Driver Airbag 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 938

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 B1B02 RAM 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 Adapter 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 B1B02 RAM - Driver Airbag Squib 1 Circuit Open - AutoCodes.com — B1B02 RAM Code - Driver Airbag Squib 1 Circuit Open

What does this mean?

What are the Possible Causes of the DTC B1B02 RAM?

Faulty Driver Airbag Squib 1
Driver Airbag Squib 1 harness is open or shorted
Driver Airbag Squib 1 circuit poor electrical connection
Faulty Driver Airbag
Faulty Steering Comun Control Module (Clockspring)
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC B1B02 RAM?

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 B1B02 RAM 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.

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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 B1B02 RAM Code

1. What are the common symptoms of OBDII code B1B02 RAM "Driver Airbag Squib 1 Circuit Open"?

The common symptoms include the airbag warning light illuminating on the dashboard, failure of the driver's airbag to deploy in case of an accident, and diagnostic trouble codes related to the driver airbag system.

2. What are the possible causes of OBDII code B1B02 RAM "Driver Airbag Squib 1 Circuit Open"?

The code may be triggered by issues such as a faulty driver airbag squib (igniter), loose or damaged wiring connections, a blown fuse, or a malfunctioning airbag control module.

3. How serious is OBDII code B1B02 RAM "Driver Airbag Squib 1 Circuit Open"?

This code indicates a potential safety issue as it relates to the driver airbag system. It is important to address this problem promptly to ensure the proper functioning of the airbag in the event of a collision.

4. Can I drive my vehicle with OBDII code B1B02 RAM "Driver Airbag Squib 1 Circuit Open"?

It is not recommended to drive the vehicle with this code present, as it may compromise the effectiveness of the driver's airbag in case of an accident. Seek professional diagnosis and repair as soon as possible.

5. How can I diagnose OBDII code B1B02 RAM "Driver Airbag Squib 1 Circuit Open"?

Diagnosis typically involves using a scan tool to retrieve the specific trouble code, inspecting the driver airbag system components for damage or loose connections, and testing the circuit continuity with a multimeter.

6. What is the typical repair for OBDII code B1B02 RAM "Driver Airbag Squib 1 Circuit Open"?

The repair may involve replacing the faulty driver airbag squib, repairing or replacing damaged wiring, checking and replacing any blown fuses, or reprogramming the airbag control module if necessary.

7. Can I reset OBDII code B1B02 RAM "Driver Airbag Squib 1 Circuit Open" with a simple reset tool?

While you may be able to clear the diagnostic trouble code temporarily, it is crucial to address the underlying issue causing the code to prevent future safety risks. Resetting the code without fixing the problem is not a permanent solution.

8. Is it possible to fix OBDII code B1B02 RAM "Driver Airbag Squib 1 Circuit Open" at home?

While basic troubleshooting like checking for loose connections or blown fuses can be done at home, it is recommended to consult a professional mechanic for a thorough diagnosis and repair of the driver airbag system.

9. How much does it cost to repair OBDII code B1B02 RAM "Driver Airbag Squib 1 Circuit Open"?

The cost of repair can vary depending on the exact cause of the issue, the required parts, and labor charges. It is advisable to obtain estimates from different auto repair shops to compare prices.

10. Will OBDII code B1B02 RAM "Driver Airbag Squib 1 Circuit Open" affect the overall safety of my vehicle?

Yes, this code indicates a problem with the driver airbag system, which is a critical safety component in your vehicle. It is essential to address the issue promptly to ensure the proper functioning of the airbag in the event of a collision.