B1B87 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 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.
Code B1B87 Description
What are the Possible Causes of the DTC B1B87?
- 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?
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 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.
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Information for Specific Makes
- B1B87 Chrysler — Passenger Seat Weight Sensor 1 Right Rear Performance
- B1B87 Dodge — Passenger Seat Weight Sensor 1 Right Rear Performance
- B1B87 Jeep — Passenger Seat Weight Sensor 1 Right Rear Performance
- B1B87 Mitsubishi — Passenger Seat Weight Sensor 1 Right Rear Performance
- B1B87 RAM — Passenger Seat Weight Sensor 1 Right Rear Performance
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.
Frequently Asked Questions about B1B87 Code
What does the OBDII code B1B87 indicate?
The OBDII code B1B87 indicates a performance issue with the right rear passenger seat weight sensor.
What symptoms might I experience with code B1B87?
Common symptoms include the airbag warning light illuminating, the passenger seat airbag being disabled, or improper seatbelt warnings.
What are the common causes of code B1B87?
Common causes include a faulty weight sensor, damaged wiring or connectors, or issues with the airbag control module.
Can I drive my vehicle with code B1B87?
While you can drive with this code, it is not recommended as it may affect airbag deployment in a crash, compromising safety.
How can I troubleshoot code B1B87?
Start by inspecting the wiring and connectors for damage, then test the weight sensor for proper functionality using a multimeter.
What are the steps to repair code B1B87?
Repair steps include checking and repairing any damaged wiring, replacing the faulty weight sensor, and clearing the code from the vehicle’s computer.
Is it necessary to reset the airbag system after fixing code B1B87?
Yes, after repairs, it is essential to reset the airbag system using an OBDII scanner to clear the code and turn off the warning light.
How much does it typically cost to fix code B1B87?
Repair costs can vary widely depending on the problem, but replacing a weight sensor can range from $100 to $500, including parts and labor.
Will code B1B87 affect my vehicle's inspection status?
Yes, if the airbag light is on due to code B1B87, it may cause your vehicle to fail an inspection that checks for airbag system functionality.
Can I fix code B1B87 myself?
If you have experience with automotive repairs, you can check wiring and replace the weight sensor yourself, but it’s advisable to consult a professional for airbag-related issues.
Discuss the causes and fixes for B1B87 OBDII Code
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