AutoCodes – Generic – B1BB3

B1BB3 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 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.

Save to My Repairs My Repairs

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

Code Popularity 649

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
Add Comment

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

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

What does this mean?

What are the Possible Causes of the DTC B1BB3?

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?

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 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 code?

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

Need Help with the Code?

Get the B1BB3 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1BB3 Chrysler — Passenger Air Bag Disable Switch Circuit Low
B1BB3 Dodge — Passenger Air Bag Disable Switch Circuit Low
B1BB3 Jeep — Passenger Air Bag Disable Switch Circuit Low
B1BB3 Mitsubishi — Passenger Air Bag Disable Switch Circuit Low
B1BB3 RAM — Passenger Air Bag Disable Switch Circuit Low

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 Code

1. What are common symptoms of OBDII code B1BB3 (Passenger Air Bag Disable Switch Circuit Low)?

- Common symptoms include the airbag warning light being illuminated on the dashboard and the passenger airbag being disabled.

2. What are possible causes of OBDII code B1BB3?

- Possible causes may include a faulty passenger air bag disable switch, damaged wiring or connectors in the circuit, or a malfunctioning airbag control module.

3. How can I diagnose the issue related to OBDII code B1BB3?

- Diagnosis typically involves inspecting the passenger air bag disable switch, checking the wiring and connectors for damage, and using a scan tool to retrieve and analyze the code.

4. Can I still drive my vehicle with OBDII code B1BB3 present?

- It is not recommended to drive with the airbag system malfunctioning. It is important to address the issue promptly to ensure the safety of the vehicle occupants.

5. How can I repair OBDII code B1BB3 myself?

- DIY repair options may include checking and cleaning the passenger air bag disable switch, inspecting and repairing damaged wiring or connectors, and resetting the airbag control module with a scan tool.

6. Is it necessary to replace the passenger air bag disable switch to fix OBDII code B1BB3?

- If the switch is found to be faulty during diagnosis, it may need to be replaced to resolve the issue and clear the fault code.

7. Are there any safety precautions to consider when working on the airbag system related to OBDII code B1BB3?

- It is crucial to disconnect the vehicle's battery and wait for the airbag system to fully discharge before attempting any repairs to avoid accidental deployment.

8. How long does it typically take to repair OBDII code B1BB3?

- The repair time can vary depending on the exact cause of the issue, but it may take anywhere from 30 minutes to a few hours to diagnose and fix the problem.

9. Can OBDII code B1BB3 be triggered by other issues not related to the passenger airbag system?

- While the code specifically relates to the passenger air bag disable switch circuit, other electrical issues or malfunctions in the airbag system could potentially trigger a similar fault code.

10. Should I have the airbag system inspected by a professional if I encounter OBDII code B1BB3?

- It is recommended to have the airbag system inspected and repaired by a qualified mechanic or technician to ensure proper diagnosis and resolution of the issue.