AutoCodes – RAM – B1BBA RAM

B1BBA RAM Code - Passenger Seat Weight Sensor Supply Circuit

Quick Answer

While the CAN bus ignition status is in IGN-RUN, the module checks the sensor supply. Common causes include Faulty Occupant Classification Module (OCM), Occupant Classification Module (OCM) harness is open or shorted, Occupant Classification Module (OCM) 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: B1BBA RAM indicates Passenger Seat Weight Sensor Supply Circuit.
Common causes: Common causes include Faulty Occupant Classification Module (OCM), Occupant Classification Module (OCM) harness is open or shorted, Occupant Classification Module (OCM) 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 501

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 B1BBA RAM Description

While the CAN bus ignition status is in IGN-RUN, the module checks the sensor supply. If the Occupant Classification Module (OCM) detects that the sensor supply shorted, this code will be set.

OBDII Code B1BBA RAM - Passenger Seat Weight Sensor Supply Circuit - AutoCodes.com — B1BBA RAM Code - Passenger Seat Weight Sensor Supply Circuit

What does this mean?

What are the Possible Causes of the DTC B1BBA RAM?

Faulty Occupant Classification Module (OCM)
Occupant Classification Module (OCM) harness is open or shorted
Occupant Classification Module (OCM) circuit poor electrical connection

How to Fix the DTC B1BBA 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 B1BBA 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 B1BBA RAM code?

Need more information on how to fix the B1BBA RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1BBA 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 B1BBA RAM Code

1. What are common symptoms of OBDII code B1BBA RAM related to the Passenger Seat Weight Sensor Supply Circuit?

- Common symptoms include the airbag warning light illuminating on the dashboard, potential loss of functionality of the passenger airbag system, and diagnostic trouble codes related to the weight sensor circuit.

2. What are possible causes of OBDII code B1BBA RAM triggering in the Passenger Seat Weight Sensor Supply Circuit?

- Potential causes include a faulty passenger seat weight sensor, damaged wiring or connectors in the seat sensor circuit, or issues with the airbag control module.

3. How can I diagnose the issue related to code B1BBA RAM in the Passenger Seat Weight Sensor Supply Circuit?

- Diagnosis typically involves using a professional OBDII scanner to read the specific trouble code, inspecting the passenger seat weight sensor and its connections, and performing electrical tests to pinpoint the source of the problem.

4. Can I repair the Passenger Seat Weight Sensor Supply Circuit issue causing code B1BBA RAM myself?

- Repairing the issue may require specialized knowledge and tools. It is recommended to consult with a qualified mechanic or dealership to accurately diagnose and fix the problem to ensure the safety of the airbag system.

5. Is it safe to drive my vehicle with OBDII code B1BBA RAM related to the Passenger Seat Weight Sensor Supply Circuit?

- It is not advisable to drive the vehicle with this issue unresolved, as it may affect the proper functioning of the passenger airbag system in the event of a collision. Seek professional help to address the problem promptly.

6. How much does it typically cost to repair the Passenger Seat Weight Sensor Supply Circuit issue causing code B1BBA RAM?

- Repair costs can vary depending on the exact cause of the problem, parts needed for replacement, and labor charges. It is recommended to obtain a diagnostic and repair estimate from a certified mechanic.

7. Can resetting the OBDII system clear the B1BBA RAM code related to the Passenger Seat Weight Sensor Supply Circuit?

- While clearing the code may temporarily turn off the warning light, it will not resolve the underlying issue causing the code. It is important to address the root cause of the problem to ensure the safety of the airbag system.

8. Are there any recalls or technical service bulletins related to OBDII code B1BBA RAM in the Passenger Seat Weight Sensor Supply Circuit?

- It is recommended to check with the vehicle manufacturer or authorized dealership for any relevant recalls or technical service bulletins related to this specific OBDII code to see if there are any known issues or remedies.

9. Can a DIY enthusiast with automotive experience repair the Passenger Seat Weight Sensor Supply Circuit issue causing code B1BBA RAM?

- Depending on the level of expertise and access to tools, a DIY enthusiast may be able to diagnose and repair simple issues related to the Passenger Seat Weight Sensor Supply Circuit. However, complex problems may require professional assistance.

10. How important is it to address OBDII code B1BBA RAM in the Passenger Seat Weight Sensor Supply Circuit promptly?

- It is crucial to address this issue promptly, as it directly affects the functionality of the passenger airbag system. Ignoring the problem may compromise the safety of occupants in the event of a collision.