AutoCodes – RAM – B1B1A RAM

B1B1A RAM Code - Left Side Curtain 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 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: B1B1A RAM indicates Left Side Curtain Squib 1 Circuit Open.
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 1,570

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 B1B1A 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 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 B1B1A RAM - Left Side Curtain Squib 1 Circuit Open - AutoCodes.com — B1B1A RAM Code - Left Side Curtain Squib 1 Circuit Open

What does this mean?

What are the Possible Causes of the DTC B1B1A RAM?

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 B1B1A 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 B1B1A 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.

Need more information about the B1B1A RAM code?

Need more information on how to fix the B1B1A RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1B1A RAM 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 B1B1A RAM Code

1. What are the common symptoms of OBDII code B1B1A RAM related to the Left Side Curtain Squib 1 Circuit Open?

- Common symptoms include the airbag warning light staying illuminated on the dashboard and potential non-deployment of the left side curtain airbag in the event of a collision.

2. What are the possible causes of OBDII code B1B1A RAM indicating a Left Side Curtain Squib 1 Circuit Open?

- The code may be triggered by a faulty left side curtain airbag squib (initiator) or issues with the wiring, connectors, or other components in the circuit.

3. How serious is OBDII code B1B1A RAM related to the Left Side Curtain Squib 1 Circuit Open?

- This code indicates a potential safety issue as it affects the deployment of the left side curtain airbag, which can compromise occupant protection in the event of a side impact collision.

4. Can I continue driving with OBDII code B1B1A RAM indicating a Left Side Curtain Squib 1 Circuit Open?

- It is not recommended to drive the vehicle with this code present, as the left side curtain airbag may not deploy properly in the event of an accident, increasing the risk of injury to occupants.

5. How can I diagnose and repair OBDII code B1B1A RAM related to the Left Side Curtain Squib 1 Circuit Open?

- Diagnosis typically involves inspecting the left side curtain airbag system for any visible damage, testing the squib and related components, and checking the wiring for continuity or shorts. Repairs may involve replacing the faulty squib, repairing wiring issues, or addressing connector problems.

6. Is it possible to clear OBDII code B1B1A RAM indicating a Left Side Curtain Squib 1 Circuit Open on my own?

- While you can clear the code using an OBDII scanner, it is crucial to address the underlying issue causing the fault to ensure proper functioning of the left side curtain airbag system.

7. Are there any safety precautions to take when working on the left side curtain airbag system related to OBDII code B1B1A RAM?

- It is essential to disconnect the vehicle's battery before working on the airbag system to prevent accidental deployment. Additionally, follow manufacturer guidelines and wear appropriate safety gear.

8. How can I prevent OBDII code B1B1A RAM from recurring after repair?

- To prevent the code from reoccurring, ensure all repairs are done correctly, use quality replacement parts, and conduct thorough testing to verify the proper functioning of the left side curtain airbag system.

9. Can a DIY enthusiast with basic automotive knowledge fix OBDII code B1B1A RAM involving the Left Side Curtain Squib 1 Circuit Open?

- While some basic repairs like checking connectors and fuses can be done by DIY enthusiasts, dealing with airbag systems and squib components may require specialized knowledge and tools, so it is recommended to consult a professional technician.

10. How much does it typically cost to repair OBDII code B1B1A RAM related to the Left Side Curtain Squib 1 Circuit Open?

- The cost of repair can vary depending on the specific issue causing the fault, the labor rates in your area, and the cost of replacement parts. It is advisable to obtain quotes from different repair shops for an accurate estimate.