AutoCodes – Dodge – B1BB4 Dodge

B1BB4 Dodge Code - Passenger Air Bag Disable Switch Circuit High

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 resister 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: B1BB4 Dodge indicates Passenger Air Bag Disable Switch Circuit High.
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 565

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 B1BB4 Dodge 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 resister to the Passenger Airbag MUX switch return circuit. Once the code is active, the Occupant Restraint Controller (ORC) will disable the indicator for the duration of the ignition cycle. The code will set if the ORC senses constant voltage over approximately 4.0 volts on the Passenger Airbag MUX Switch circuits.

OBDII Code B1BB4 Dodge - Passenger Air Bag Disable Switch Circuit High - AutoCodes.com — B1BB4 Dodge Code - Passenger Air Bag Disable Switch Circuit High

What does this mean?

What are the Possible Causes of the DTC B1BB4 Dodge?

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 B1BB4 Dodge?

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 B1BB4 Dodge 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 B1BB4 Dodge code?

Need more information on how to fix the B1BB4 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1BB4 Dodge 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 B1BB4 Dodge Code

1. What are the common symptoms of OBDII code B1BB4 in a Dodge related to the Passenger Air Bag Disable Switch Circuit High?

The common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the passenger airbag system.

2. What are the possible causes of OBDII code B1BB4 in a Dodge indicating a Passenger Air Bag Disable Switch Circuit High?

Potential causes can include a malfunctioning passenger airbag disable switch, damaged wiring in the circuit, or a faulty airbag control module.

3. How serious is OBDII code B1BB4 in a Dodge related to the Passenger Air Bag Disable Switch Circuit High?

This code is considered serious as it indicates a problem with the passenger airbag system, which may affect its functionality in the event of a collision.

4. Can OBDII code B1BB4 in a Dodge be reset or cleared without fixing the underlying issue?

While the code can be cleared using an OBDII scanner, it is not recommended to do so without addressing the root cause, as it may pose a safety risk.

5. How can I diagnose and repair OBDII code B1BB4 in a Dodge for the Passenger Air Bag Disable Switch Circuit High?

Diagnosis involves inspecting the passenger airbag disable switch, checking the circuit wiring for damage, and testing the airbag control module. Repair may involve replacing the faulty components.

6. Is it safe to drive a Dodge with OBDII code B1BB4 indicating a Passenger Air Bag Disable Switch Circuit High?

It is not recommended to drive the vehicle with this code active, as it may compromise the proper functioning of the passenger airbag system in case of an accident.

7. Can a DIY enthusiast fix OBDII code B1BB4 related to the Passenger Air Bag Disable Switch Circuit High in a Dodge?

While some basic troubleshooting steps can be performed by a DIY enthusiast, it is advisable to seek professional help for diagnosing and repairing airbag system issues.

8. How much does it typically cost to repair OBDII code B1BB4 in a Dodge for the Passenger Air Bag Disable Switch Circuit High?

The cost of repair can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement and labor charges from a mechanic.

9. Are there any recalls or technical service bulletins (TSBs) related to OBDII code B1BB4 in Dodge vehicles for the Passenger Air Bag Disable Switch Circuit High?

It is recommended to check with the Dodge dealership or official sources for any recalls or TSBs addressing this specific OBDII code and related concerns.

10. How can I prevent OBDII code B1BB4 related to the Passenger Air Bag Disable Switch Circuit High from occurring in my Dodge?

Regular maintenance checks, prompt repair of any airbag system issues, and avoiding physical damage to the wiring can help prevent the occurrence of this code in your Dodge vehicle.