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B1B79 Chrysler Code - Passenger Seat Weight Sensor 3 Left Front Input Circuit Low

Quick Answer

The B1B79 Chrysler code indicates a problem with the passenger seat weight sensor 3 left front input circuit being too low. Common causes include Faulty passenger seat weight sensor, Damaged wiring or connectors, Issues with the airbag control module. 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
B1B79 Chrysler indicates Passenger Seat Weight Sensor 3 Left Front Input Circuit Low.
Common causes
Common causes include Faulty passenger seat weight sensor, Damaged wiring or connectors, Issues with the airbag control module.
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 12, 2024
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Code B1B79 Chrysler Description

The B1B79 Chrysler code indicates a problem with the passenger seat weight sensor 3 left front input circuit being too low. This sensor is responsible for detecting the weight of the passenger in the seat and activating or deactivating the airbag system accordingly. When this sensor detects a weight that is too low, it can affect the proper functioning of the airbag system, potentially putting the passenger at risk in the event of a collision.

OBDII Code B1B79 Chrysler - Passenger Seat Weight Sensor 3 Left Front Input Circuit Low
B1B79 Chrysler Code - Passenger Seat Weight Sensor 3 Left Front Input Circuit Low

Common Causes of B1B79 Chrysler

  1. Faulty passenger seat weight sensor
  2. Damaged wiring or connectors
  3. Issues with the airbag control module
  4. Corrosion or water damage affecting the sensor
  5. Impact or damage to the passenger seat

Symptoms of B1B79 Chrysler

  1. Airbag warning light on the dashboard
  2. Inconsistent airbag deployment
  3. Passenger airbag not activating
  4. Passenger airbag deploying unexpectedly
  5. Fault codes stored in the vehicle's computer system

How to Fix B1B79 Chrysler

  1. Begin by performing a thorough inspection of the passenger seat weight sensor and its wiring for any visible damage or loose connections.
  2. Use a multimeter to test the sensor's resistance and ensure it is within the manufacturer's specified range.
  3. If the sensor is faulty, replace it with a new one following the manufacturer's guidelines.
  4. Clear the fault codes stored in the vehicle's computer system using a diagnostic tool.
  5. Test the airbag system to ensure proper functionality after the repair is completed.

Cost to Fix B1B79 Chrysler

The typical repair costs for addressing the B1B79 Chrysler code can vary depending on the specific cause of the issue. In general, replacing a faulty passenger seat weight sensor can cost anywhere from $200 to $500, including parts and labor. However, additional costs may be incurred if there are other underlying issues with the airbag system that need to be addressed. It's recommended to consult with a trusted auto repair shop for a more accurate estimate based on the vehicle make and model, as well as the severity of the problem. Keep in mind that diagnostic time and labor rates can vary, so it's advisable to inquire about these factors before proceeding with the repair.

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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.

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 B1B79 Chrysler Code

1. What are the common symptoms of OBDII code B1B79 in a Chrysler related to the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low?

The common symptoms include the airbag warning light staying on, potential passenger airbag deactivation, and diagnostic trouble codes related to the passenger seat weight sensor.

2. What could be causing the OBDII code B1B79 in a Chrysler indicating an issue with the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low?

Possible causes may include a faulty passenger seat weight sensor, damaged wiring or connectors in the circuit, or issues with the airbag control module.

3. How can I diagnose the OBDII code B1B79 related to the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low in my Chrysler?

Diagnosis typically involves using a professional OBDII scanner to read the specific fault code, inspecting the wiring and connectors associated with the passenger seat weight sensor, and testing the sensor itself for proper functionality.

4. Is it safe to drive my Chrysler with the OBDII code B1B79 indicating an issue with the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low?

It is not recommended to drive the vehicle with this fault code present, as it may affect the proper functioning of the passenger airbag system in the event of a collision.

5. Can I repair the OBDII code B1B79 related to the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low in my Chrysler myself?

While some basic troubleshooting steps can be performed by DIY enthusiasts, it is recommended to consult a professional technician for an accurate diagnosis and proper repair of the issue to ensure safety and functionality.

6. How much does it typically cost to repair the OBDII code B1B79 indicating a problem with the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low in a Chrysler?

The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing the passenger seat weight sensor, repairing damaged wiring, or reprogramming the airbag control module. Costs can range from a few hundred to over a thousand dollars.

7. Can resetting the OBDII code B1B79 related to the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low in my Chrysler resolve the issue?

Resetting the code may temporarily turn off the warning light, but if the underlying problem is not addressed, the code is likely to reappear. It is important to diagnose and fix the root cause of the issue to ensure the proper functioning of the passenger airbag system.

8. Are there any recalls or technical service bulletins related to the OBDII code B1B79 Chrysler Passenger Seat Weight Sensor 3 Left Front Input Circuit Low?

Chrysler may have issued recalls or technical service bulletins related to this specific fault code. It is recommended to check with a Chrysler dealership or visit the National Highway Traffic Safety Administration (NHTSA) website for any relevant information.

9. How can I prevent the OBDII code B1B79 from reoccurring in my Chrysler after repairing the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low issue?

To prevent the code from reoccurring, ensure that the passenger seat weight sensor is properly calibrated and functioning, regularly inspect and maintain the wiring and connectors in the circuit, and follow any recommended maintenance schedules provided by Chrysler.

10. Is the OBDII code B1B79 related to the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low a common issue in Chrysler vehicles?

While the occurrence of this specific fault code may vary, issues related to passenger seat weight sensors and airbag systems are not uncommon in Chrysler vehicles. Regular maintenance and prompt attention to warning lights can help prevent such issues.

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