AutoCodes – RAM – B1BC8 RAM

B1BC8 RAM Code - Passenger Seat Weight Sensor Performance

Quick Answer

While the CAN bus ignition status is in IGN-RUN, the module checks the sensor input ranges. Common causes include Faulty Passenger Seat Weight Sensor, Passenger Seat Weight Sensor harness is open or shorted, Passenger Seat Weight Sensor 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: B1BC8 RAM indicates Passenger Seat Weight Sensor Performance.
Common causes: Common causes include Faulty Passenger Seat Weight Sensor, Passenger Seat Weight Sensor harness is open or shorted, Passenger Seat Weight Sensor 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 538

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 B1BC8 RAM Description

While the CAN bus ignition status is in IGN-RUN, the module checks the sensor input ranges. This code will set if the Occupant Classification Module (OCM) detects the difference between 2 sensors is less than 3 A/D (15 mV) counts for 10 consecutive minutes while at least one sensor count is changing and greater than 8 A/D (40 mV) counts.

OBDII Code B1BC8 RAM - Passenger Seat Weight Sensor Performance - AutoCodes.com — B1BC8 RAM Code - Passenger Seat Weight Sensor Performance

What does this mean?

What are the Possible Causes of the DTC B1BC8 RAM?

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

How to Fix the DTC B1BC8 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 B1BC8 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 B1BC8 RAM code?

Need more information on how to fix the B1BC8 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1BC8 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 B1BC8 RAM Code

1. What are common symptoms of OBDII code B1BC8 RAM related to the Passenger Seat Weight Sensor Performance?

- Common symptoms include the airbag warning light illuminating on the dashboard, inconsistent or incorrect airbag deployment, and potential passenger seat belt reminder issues.

2. What could be causing the OBDII code B1BC8 RAM regarding the Passenger Seat Weight Sensor Performance?

- Possible causes include a faulty passenger seat weight sensor, damaged wiring or connectors in the sensor system, or a software glitch in the airbag control module.

3. How can I diagnose the issue related to OBDII code B1BC8 RAM for the Passenger Seat Weight Sensor Performance?

- Diagnosis typically involves using a diagnostic scan tool to retrieve the specific fault code, inspecting the passenger seat weight sensor and associated wiring for damage, and performing sensor calibration if necessary.

4. Is it safe to drive with the OBDII code B1BC8 RAM triggered by Passenger Seat Weight Sensor Performance?

- It is not recommended to drive with this fault code active, as it may affect the proper functioning of the airbag system, potentially compromising passenger safety in the event of a collision.

5. Can I reset the OBDII code B1BC8 RAM related to Passenger Seat Weight Sensor Performance on my own?

- While you can attempt to clear the fault code with a diagnostic scanner, it is essential to address the underlying issue causing the code to prevent it from reoccurring.

6. What are some repair tips for fixing the OBDII code B1BC8 RAM associated with Passenger Seat Weight Sensor Performance?

- Repair tips may include inspecting and repairing any damaged wiring, recalibrating the passenger seat weight sensor if needed, or replacing the sensor altogether if it is determined to be faulty.

7. How much does it typically cost to repair the OBDII code B1BC8 RAM related to Passenger Seat Weight Sensor Performance?

- Repair costs can vary depending on the exact cause of the issue, but expenses may include sensor replacement, wiring repairs, and labor charges, potentially ranging from a few hundred to over a thousand dollars.

8. Can I fix the OBDII code B1BC8 RAM for Passenger Seat Weight Sensor Performance without professional help?

- While some DIY enthusiasts may be able to tackle simple repairs like sensor recalibration or basic wiring checks, complex issues or sensor replacements are best handled by trained professionals to ensure proper airbag system functionality.

9. Are there any recalls or technical service bulletins related to the OBDII code B1BC8 RAM and Passenger Seat Weight Sensor Performance?

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

10. How often should I have the Passenger Seat Weight Sensor system checked to prevent the OBDII code B1BC8 RAM from appearing?

- Regular maintenance checks, especially during scheduled service appointments or when experiencing any related symptoms, can help catch potential issues with the Passenger Seat Weight Sensor system early and prevent the occurrence of fault codes like B1BC8 RAM.