AutoCodes – RAM – B1BB3 RAM

B1BB3 RAM Code - Passenger Air Bag Disable Switch Circuit Low

Quick Answer

When the ignition is on, the Passenger Airbag MUX Switch Sense circuit supplies a 3 to 10 ms pulse every 100 ms across the On or Off switch resistor to the Passenger Airbag MUX switch return circuit. Common causes include Faulty Passenger Air Bag Disable Switch, Passenger Air Bag Disable Switch harness is open or shorted, Passenger Air Bag Disable Switch 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: B1BB3 RAM indicates Passenger Air Bag Disable Switch Circuit Low.
Common causes: Common causes include Faulty Passenger Air Bag Disable Switch, Passenger Air Bag Disable Switch harness is open or shorted, Passenger Air Bag Disable Switch 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 681

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 23, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1BB3 RAM Description

When the ignition is on, the Passenger Airbag MUX Switch Sense circuit supplies a 3 to 10 ms pulse every 100 ms across the On or Off switch resistor to the Passenger Airbag MUX switch return circuit. The code will set if the Occupant Restraint Controller (ORC) senses low resistance on the Passenger Airbag MUX Switch Sense circuit.

OBDII Code B1BB3 RAM - Passenger Air Bag Disable Switch Circuit Low - AutoCodes.com — B1BB3 RAM Code - Passenger Air Bag Disable Switch Circuit Low

What does this mean?

What are the Possible Causes of the DTC B1BB3 RAM?

Faulty Passenger Air Bag Disable Switch
Passenger Air Bag Disable Switch harness is open or shorted
Passenger Air Bag Disable Switch circuit poor electrical connection
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC B1BB3 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 B1BB3 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 B1BB3 RAM code?

Need more information on how to fix the B1BB3 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1BB3 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 B1BB3 RAM Code

1. What are the common symptoms of OBDII code B1BB3 RAM related to the Passenger Air Bag Disable Switch Circuit Low?

- The common symptoms include the airbag warning light illuminating on the dashboard and potential deactivation of the passenger airbag.

2. What are the possible causes of OBDII code B1BB3 RAM indicating a Passenger Air Bag Disable Switch Circuit Low?

- The code may be triggered by a faulty passenger air bag disable switch, damaged wiring or connectors, or a malfunctioning airbag control module.

3. How can I diagnose the cause of OBDII code B1BB3 RAM for the Passenger Air Bag Disable Switch Circuit Low?

- Diagnosis typically involves checking the passenger air bag disable switch, inspecting the wiring harness for damage, and using a scan tool to read the fault codes stored in the airbag control module.

4. Is it safe to drive with OBDII code B1BB3 RAM related to the Passenger Air Bag Disable Switch Circuit Low?

- It is not recommended to drive with this code present, as it may indicate a potential issue with the passenger airbag system, which could affect its functionality in the event of an accident.

5. How can I repair OBDII code B1BB3 RAM for the Passenger Air Bag Disable Switch Circuit Low?

- Repair options may include replacing the passenger air bag disable switch, repairing damaged wiring or connectors, or reprogramming the airbag control module to clear the fault code.

6. Can I reset OBDII code B1BB3 RAM for the Passenger Air Bag Disable Switch Circuit Low without fixing the underlying issue?

- While you can clear the fault code using a scan tool, it is important to address the root cause of the issue to ensure the passenger airbag system operates correctly.

7. Are there any safety precautions to consider when working on the Passenger Air Bag Disable Switch Circuit related to OBDII code B1BB3 RAM?

- It is crucial to disconnect the vehicle's battery before working on any airbag-related components to prevent accidental deployment and ensure safety during repairs.

8. How can I prevent OBDII code B1BB3 RAM for the Passenger Air Bag Disable Switch Circuit Low from recurring in the future?

- Regularly inspecting the passenger air bag disable switch, maintaining the wiring harness, and addressing any issues promptly can help prevent the code from reoccurring.

9. Can a DIY enthusiast without professional experience fix OBDII code B1BB3 RAM for the Passenger Air Bag Disable Switch Circuit Low?

- While some repairs related to this code may be within reach of a DIY enthusiast, working on airbag systems can be complex and dangerous, so it is recommended to seek professional help for such issues.

10. How long does it typically take to repair OBDII code B1BB3 RAM related to the Passenger Air Bag Disable Switch Circuit Low?

- The repair time can vary depending on the exact cause of the issue, but it may take anywhere from an hour to several hours to diagnose and fix the problem.