AutoCodes – Chrysler – B1B79 Chrysler

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

Quick Answer

If the module detects that the sensor input is less than 3.4 +/- 0.6% of the Seat Weight Sensor 5 Volt circuit voltage. Common causes include Faulty Left Front Passenger Seat Weight Sensor, Left Front Passenger Seat Weight Sensor harness is open or shorted, Left Front 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: B1B79 Chrysler indicates Passenger Seat Weight Sensor 3 Left Front Input Circuit Low.
Common causes: Common causes include Faulty Left Front Passenger Seat Weight Sensor, Left Front Passenger Seat Weight Sensor harness is open or shorted, Left Front 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 863

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 B1B79 Chrysler Description

If the module detects that the sensor input is less than 3.4 +/- 0.6% of the Seat Weight Sensor 5 Volt circuit voltage. This Diagnostic Trouble Code (DTC) will also set if the Seat Weight Sensor 5 Volt circuit is shorted to ground. However, this condition would prevent communication with the Occupant Classification Module (OCM) and cause a Lost Communication With OCM DTC to set in other modules. Also, this DTC will remain active after the condition that set this fault is no longer present. This condition is referred to as latching the DTC for the ignition cycle. Cycling the ignition key will change the status from active to stored if the condition that set the fault is no longer present.

OBDII Code B1B79 Chrysler - Passenger Seat Weight Sensor 3 Left Front Input Circuit Low - AutoCodes.com — B1B79 Chrysler Code - Passenger Seat Weight Sensor 3 Left Front Input Circuit Low

What does this mean?

What are the Possible Causes of the DTC B1B79 Chrysler?

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

How to Fix the DTC B1B79 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 B1B79 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 B1B79 Chrysler code?

Need more information on how to fix the B1B79 Chrysler code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1B79 Chrysler code diagnosed by a professional: Find a repair shop in your area

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.