AutoCodes – Generic – B1B82

B1B82 Code - Passenger Seat Weight Sensor 2 Left 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 Left Rear Passenger Seat Weight Sensor, Left Rear Passenger Seat Weight Sensor harness is open or shorted, Left 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: B1B82 indicates Passenger Seat Weight Sensor 2 Left Rear Performance.
Common causes: Common causes include Faulty Left Rear Passenger Seat Weight Sensor, Left Rear Passenger Seat Weight Sensor harness is open or shorted, Left 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 1,276

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 B1B82 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 B1B82 - Passenger Seat Weight Sensor 2 Left Rear Performance - AutoCodes.com — B1B82 Code - Passenger Seat Weight Sensor 2 Left Rear Performance

What does this mean?

What are the Possible Causes of the DTC B1B82?

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

How to Fix the DTC B1B82?

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 B1B82 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 B1B82 code?

Need more information on how to fix the B1B82 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1B82 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1B82 Chrysler — Passenger Seat Weight Sensor 2 Left Rear Performance
B1B82 Dodge — Passenger Seat Weight Sensor 2 Left Rear Performance
B1B82 Jeep — Passenger Seat Weight Sensor 2 Left Rear Performance
B1B82 Mitsubishi — Passenger Seat Weight Sensor 2 Left Rear Performance
B1B82 RAM — Passenger Seat Weight Sensor 2 Left 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.

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 B1B82 Code

1. What are the common symptoms of OBDII code B1B82 (Passenger Seat Weight Sensor 2 Left Rear Performance)?

Typical symptoms include the airbag warning light illuminating on the dashboard and potential issues with the passenger airbag system.

2. What can cause OBDII code B1B82 to trigger?

This code is usually triggered by a malfunction in the weight sensor located in the left rear of the passenger seat, which may be caused by sensor damage, wiring issues, or a faulty connection.

3. How can I diagnose the cause of OBDII code B1B82?

A thorough inspection of the passenger seat weight sensor, its wiring, and connections is necessary. Using an OBDII scanner to retrieve additional fault codes can also help pinpoint the issue.

4. Can I still drive my vehicle with OBDII code B1B82 active?

While the vehicle may still be operable, it is not recommended to drive with an active airbag system fault, as it may affect the proper deployment of airbags in the event of a collision.

5. How can I reset OBDII code B1B82?

Resetting the code may temporarily clear the warning light, but the underlying issue must be repaired for the code to stay inactive. This can be done with an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.

6. Is it safe to attempt repairing OBDII code B1B82 myself?

Repairing the passenger seat weight sensor system can be complex and may require specialized tools and knowledge. It is recommended to consult a professional mechanic or dealership for proper diagnosis and repair.

7. How much does it typically cost to repair OBDII code B1B82?

The cost of repairing this code can vary depending on the extent of the damage and the specific repairs needed. It is advisable to obtain quotes from different mechanics or dealerships for an accurate estimate.

8. Can a faulty passenger seat weight sensor affect other vehicle systems?

While the primary concern is the passenger airbag system, a malfunctioning weight sensor may also impact the overall safety of the vehicle's occupant detection system.

9. Are there any temporary solutions for OBDII code B1B82?

Temporary solutions like disconnecting and reconnecting the weight sensor or resetting the system may provide a temporary fix, but it is crucial to address the root cause of the issue for a permanent solution.

10. How often should the passenger seat weight sensor system be inspected?

Regular inspections as part of routine maintenance checks are recommended to ensure the proper functioning of the passenger seat weight sensor system and the overall safety of the vehicle.