AutoCodes – RAM – B1B87 RAM

B1B87 RAM Code - Passenger Seat Weight Sensor 1 Right Rear Performance

Quick Answer

During the occupant classification module system verification test: if the module detects that the sensor input is less than 1.4 volts or greater than 3.6 volts. Common causes include Faulty Right Rear Passenger Seat Weight Sensor, Right Rear Passenger Seat Weight Sensor harness is open or shorted, Right Rear 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: B1B87 RAM indicates Passenger Seat Weight Sensor 1 Right Rear Performance.
Common causes: Common causes include Faulty Right Rear Passenger Seat Weight Sensor, Right Rear Passenger Seat Weight Sensor harness is open or shorted, Right Rear 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 717

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 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1B87 RAM Description

During the occupant classification module system verification test: if the module detects that the sensor input is less than 1.4 volts or greater than 3.6 volts. During auto zero: if the module detects that the sensor input is less than 1 volt or greater than 4 volts.

OBDII Code B1B87 RAM - Passenger Seat Weight Sensor 1 Right Rear Performance - AutoCodes.com — B1B87 RAM Code - Passenger Seat Weight Sensor 1 Right Rear Performance

What does this mean?

What are the Possible Causes of the DTC B1B87 RAM?

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

How to Fix the DTC B1B87 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 B1B87 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 B1B87 RAM code?

Need more information on how to fix the B1B87 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1B87 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 B1B87 RAM Code

1. What are the common symptoms of OBDII code B1B87 RAM related to the Passenger Seat Weight Sensor 1 Right Rear Performance?

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

2. What can cause the OBDII code B1B87 RAM to trigger for the Passenger Seat Weight Sensor 1 Right Rear Performance?

Possible causes include a malfunction in the weight sensor itself, wiring issues, or a fault in the airbag control module.

3. How can I diagnose the OBDII code B1B87 RAM for the Passenger Seat Weight Sensor 1 Right Rear Performance?

Diagnosis typically involves using a professional OBDII scanner to read the specific fault code and then conducting further inspection of the weight sensor, wiring connections, and related components.

4. Is it safe to drive with OBDII code B1B87 RAM triggered for the Passenger Seat Weight Sensor 1 Right Rear Performance?

It is not recommended to drive with this code triggered, as it indicates potential issues with the airbag system's performance, which could compromise passenger safety in the event of a collision.

5. What are some repair tips for addressing OBDII code B1B87 RAM related to the Passenger Seat Weight Sensor 1 Right Rear Performance?

Repair tips may include checking and cleaning the weight sensor connections, inspecting the wiring for any damage, and resetting the airbag system to see if the code clears.

6. Can I reset the OBDII code B1B87 RAM for the Passenger Seat Weight Sensor 1 Right Rear Performance myself?

You can attempt to clear the code using an OBDII scanner, but it is recommended to address the underlying issue first to prevent the code from reoccurring.

7. Do I need to replace the Passenger Seat Weight Sensor 1 Right Rear to fix OBDII code B1B87 RAM?

Replacing the sensor may be necessary if it is found to be faulty during diagnosis, but it is important to confirm the exact cause of the code before replacing any components.

8. How much does it typically cost to repair OBDII code B1B87 RAM related to the Passenger Seat Weight Sensor 1 Right Rear Performance?

Repair costs can vary depending on the specific cause of the issue, but it is advisable to consult with a professional technician for an accurate diagnosis and cost estimate.

9. Are there any recalls or technical service bulletins related to OBDII code B1B87 RAM for the Passenger Seat Weight Sensor 1 Right Rear Performance?

It is recommended to check with the vehicle manufacturer or authorized dealerships for any existing recalls or technical service bulletins related to this specific OBDII code.

10. Can OBDII code B1B87 RAM for the Passenger Seat Weight Sensor 1 Right Rear Performance be intermittent?

Yes, intermittent issues with the weight sensor or wiring connections can sometimes trigger the code sporadically. It is important to address these issues promptly to ensure the proper functioning of the airbag system.