AutoCodes – Dodge – B1B79 Dodge

B1B79 Dodge 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 Dodge 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 595

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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

What does this mean?

What are the Possible Causes of the DTC B1B79 Dodge?

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 Dodge?

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 Dodge 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 Dodge code?

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

Need Help with the Code?

Get the B1B79 Dodge 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 Dodge Code

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

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

2. What are the possible causes of the B1B79 code in a Dodge?

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

3. How can I diagnose the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low issue in my Dodge?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the specific fault code, inspecting the wiring and connectors related to the passenger seat weight sensor, and testing the sensor itself for proper operation.

4. Is it safe to drive my Dodge with the B1B79 code triggered?

- It is recommended to address the issue promptly to ensure the proper functioning of the passenger airbag system. Consult with a qualified mechanic to determine the safety implications of driving with the code active.

5. Can I reset the B1B79 code in my Dodge without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is crucial to address the root cause of the problem to prevent the code from reoccurring and ensure the safety of the passenger airbag system.

6. How much does it typically cost to repair the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low problem in a Dodge?

- Repair costs can vary depending on the exact cause of the issue, but expenses may include parts replacement, sensor recalibration, and labor fees. It is advisable to obtain quotes from reputable auto repair shops.

7. Are there any DIY repair tips for fixing the B1B79 code in a Dodge?

- DIY repairs for this code may be challenging due to the complexity of the airbag system. It is recommended to seek assistance from a professional mechanic with experience in handling airbag-related issues.

8. Can a faulty passenger seat weight sensor cause other OBDII codes to appear in a Dodge?

- Yes, a malfunctioning passenger seat weight sensor can trigger additional codes related to the airbag system or seat occupancy detection, so it is essential to address the primary issue promptly.

9. How long does it typically take to repair the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low problem in a Dodge?

- The repair duration can vary based on the extent of the issue and the availability of parts. In some cases, the repair may be completed within a few hours, but more complex issues could take longer to resolve.

10. Is the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low issue a common problem in Dodge vehicles?

- While this specific code may not be extremely common, issues with seat weight sensors and airbag systems can occur in various Dodge models, highlighting the importance of proper maintenance and timely repairs.