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Engine-Codes – Generic – B1B83

B1B83 Code - Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low

Quick Answer

The B1B83 diagnostic trouble code (DTC) refers to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low. Common causes include Faulty passenger seat weight sensor, Wiring or connection issues in the sensor circuit, Corrosion or damage to sensor components. 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
B1B83 indicates Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low.
Common causes
Common causes include Faulty passenger seat weight sensor, Wiring or connection issues in the sensor circuit, Corrosion or damage to sensor components.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code B1B83 Description

The B1B83 diagnostic trouble code (DTC) refers to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low. This code indicates that there is a problem with the passenger seat weight sensor located on the left rear side of the vehicle. The weight sensor is responsible for detecting the presence and weight of a passenger in the seat, which is crucial for the proper deployment of the airbag system in the event of a collision.

OBDII Code B1B83 - Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low
B1B83 Code - Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low

Common Causes of B1B83

  1. Faulty passenger seat weight sensor.
  2. Wiring or connection issues in the sensor circuit.
  3. Corrosion or damage to sensor components.
  4. Electrical issues in the vehicle's wiring harness.
  5. Software or programming issues in the airbag control module.

Symptoms of B1B83

  1. Airbag warning light illuminated on the dashboard.
  2. Inconsistent or inaccurate readings from the passenger seat weight sensor.
  3. Airbag system fault codes stored in the vehicle's computer.
  4. Airbag system may not deploy in a crash.
  5. Passenger airbag may be deactivated.

How to Fix B1B83

  1. Begin by diagnosing the specific cause of the low input circuit, which may involve using a scan tool to retrieve the fault codes and perform electrical tests on the sensor and related components.
  2. Inspect the wiring and connections associated with the passenger seat weight sensor for any damage, corrosion, or loose connections. Repair or replace any damaged wiring or connectors.
  3. Test the passenger seat weight sensor itself to determine if it is functioning correctly. Replace the sensor if it is found to be faulty.
  4. Clear the fault codes from the vehicle's computer and perform a test drive to ensure that the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be necessary to identify any underlying issues with the airbag system or related components.

Cost to Fix B1B83

The cost of repairing a B1B83 DTC can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, the cost of replacing a faulty passenger seat weight sensor can range from $200 to $500, including parts and labor. However, additional costs may be incurred if there are wiring or connection issues that need to be addressed. It is recommended to consult with a qualified mechanic or dealership to obtain a more accurate cost estimate based on the specific circumstances of the vehicle. Keep in mind that labor rates can vary widely, so it's advisable to shop around for the best deal.

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Code B1B83 Information for Specific Makes

  • B1B83 Chrysler — Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low
  • B1B83 Dodge — Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low
  • B1B83 Jeep — Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low
  • B1B83 Mitsubishi — Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low
  • B1B83 RAM — Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low

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 B1B83 Code

1. What does the OBDII code B1B83 mean?

The B1B83 code indicates a low input issue in the Passenger Seat Weight Sensor 2 Left Rear Input Circuit, which is part of the system that detects passenger weight for airbag deployment.

2. What are the common symptoms of code B1B83?

Common symptoms include the airbag warning light turning on, the passenger airbag being disabled, and inconsistent passenger weight detection.

3. What causes the B1B83 code to appear?

Possible causes include a faulty weight sensor, damaged wiring or connectors in the seat sensor circuit, or a malfunctioning occupant classification module.

4. Can I still drive my car with the B1B83 code?

Yes, you can drive the car, but the passenger airbag may not deploy correctly in the event of an accident, which poses a safety risk.

5. How do I diagnose the B1B83 code?

Diagnosis involves scanning the system with an OBDII scanner, inspecting the seat weight sensor wiring and connectors, and checking the occupant classification module for faults.

6. How do you fix the B1B83 code?

Repairs include replacing the faulty seat weight sensor, repairing damaged wiring or connectors, or reprogramming or replacing the occupant classification module if needed.

7. Is the B1B83 code related to a recall?

It depends on your vehicle make and model. Check with your manufacturer or dealer for recalls related to the airbag or seat sensor system.

8. How much does it cost to repair the B1B83 code?

Repair costs vary but can range from $100 for wiring repairs to $1,000 or more for sensor or module replacements, depending on labor and parts.

9. Can I fix the B1B83 code myself?

If you’re experienced with automotive electronics, you may be able to repair wiring or replace the sensor. Otherwise, it’s best to leave it to a professional.

10. Will clearing the code solve the problem?

Clearing the code may turn off the warning temporarily, but the underlying issue must be fixed to prevent it from returning.

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