B1B87 Chrysler 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 Chrysler 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 Chrysler Description
What are the Possible Causes of the DTC B1B87 Chrysler?
- 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 Chrysler?
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 Chrysler 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 Chrysler code?
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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 Chrysler Code
1. What does the OBDII code B1B87 mean for a Chrysler?
The B1B87 code indicates a problem with the passenger seat weight sensor 1 (right rear), which monitors weight distribution for airbag deployment and safety systems.
2. What are the common symptoms of the B1B87 code?
Symptoms may include an illuminated airbag warning light, malfunctioning passenger airbag system, or incorrect classification of the passenger’s weight.
3. What causes the B1B87 code to appear?
Possible causes include a faulty weight sensor, damaged wiring or connectors, calibration issues, or a problem with the Occupant Classification Module (OCM).
4. Can a loose connection cause the B1B87 code?
Yes, loose or corroded connectors in the seat weight sensor circuit can trigger this code.
5. How do you diagnose the B1B87 code?
Diagnose the code by using an OBDII scanner to confirm the fault, visually inspecting the seat sensor wiring and connectors, and testing the sensor with specialized tools.
6. Can the B1B87 code affect airbag deployment?
Yes, a malfunctioning weight sensor can cause the airbag system to deploy incorrectly or fail to deploy during an accident.
7. How is the B1B87 code typically repaired?
Common repairs include replacing the faulty weight sensor, repairing damaged wires or connectors, or recalibrating the Occupant Classification System (OCS).
8. Is it safe to drive with the B1B87 code active?
It is not recommended to drive with this code active, as it can compromise the airbag system's functionality and passenger safety.
9. Does the passenger seat need to be removed to fix the B1B87 code?
In some cases, the seat may need to be removed to access and replace the weight sensor or repair wiring.
10. Can the B1B87 code clear itself after repairs?
The code may need to be cleared manually with an OBDII scanner after repairs, though some systems may reset automatically after successful calibration.
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