B1B79 RAM Code - Passenger Seat Weight Sensor 3 Left Front Input Circuit Low
Quick Answer
The B1B79 RAM code indicates a problem with the passenger seat weight sensor 3 left front input circuit being too low. Common causes include Damaged wiring or connectors in the circuit, Faulty passenger seat weight sensor, 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 RAM indicates Passenger Seat Weight Sensor 3 Left Front Input Circuit Low.
- Common causes
- Common causes include Damaged wiring or connectors in the circuit, Faulty passenger seat weight sensor, 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.
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Code B1B79 RAM Description
The B1B79 RAM code indicates a problem with the passenger seat weight sensor 3 left front input circuit being too low. This sensor is crucial for the proper functioning of the vehicle's occupant detection system, which is responsible for determining whether the airbag should deploy in case of a collision based on the weight of the passenger. When this circuit is reading low, it can lead to inaccurate readings and potentially result in the airbag not deploying when needed or deploying when it shouldn't, posing a safety risk to the occupants.
Common Causes of B1B79 RAM
- Damaged wiring or connectors in the circuit.
- Faulty passenger seat weight sensor.
- Issues with the airbag control module.
- Corrosion or loose connections in the sensor circuit.
- Software issues in the occupant detection system.
Symptoms of B1B79 RAM
- Airbag warning light illuminated on the dashboard.
- Inconsistent airbag deployment in accidents.
- Passenger airbag indicator showing incorrect status.
- Diagnostic trouble codes related to the passenger seat weight sensor.
How to Fix B1B79 RAM
- Begin by conducting a thorough inspection of the wiring and connectors in the passenger seat weight sensor circuit to check for any damage or corrosion.
- Test the passenger seat weight sensor using a multimeter to determine if it is functioning correctly.
- If the sensor is faulty, replace it with a new one following the manufacturer's guidelines.
- Check the airbag control module for any issues and reprogram or replace it if necessary.
- Clear the diagnostic trouble codes and perform a test to ensure that the issue has been resolved.
Cost to Fix B1B79 RAM
The cost of repairing a B1B79 RAM code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. Typically, the cost of parts for this repair can range from $100 to $300, while the labor costs can be between $150 and $300. However, it's important to note that these are rough estimates, and actual costs may vary based on the location, vehicle make and model, and the extent of the repairs needed. It's recommended to consult with a professional mechanic to get an accurate cost estimate for addressing this issue.
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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.
Frequently Asked Questions about B1B79 RAM Code
1. What are the common symptoms of OBDII code B1B79 RAM related to the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low?
The common symptoms include the airbag warning light staying illuminated on the dashboard, the passenger airbag system being disabled, and potential issues with the front passenger seatbelt reminder.
2. What are the possible causes of OBDII code B1B79 RAM indicating the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low?
Possible causes include a faulty weight sensor in the passenger seat, damaged wiring or connectors in the seat sensor system, or a malfunctioning airbag control module.
3. How can I diagnose the issue related to OBDII code B1B79 RAM for the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low?
You can use an OBDII scanner to read and interpret the specific fault code B1B79 RAM. Additionally, conducting a visual inspection of the passenger seat wiring and connections can help identify any visible damage.
4. Is it safe to drive with OBDII code B1B79 RAM triggered by the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low?
It is not recommended to drive the vehicle with this code present, as it indicates a potential issue with the passenger airbag system, which could compromise safety in the event of a collision.
5. What are the repair options for addressing OBDII code B1B79 RAM related to the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low?
Repair options may include replacing the faulty weight sensor in the passenger seat, repairing or replacing damaged wiring or connectors, or resetting the airbag control module to clear the fault code.
6. Can I reset OBDII code B1B79 RAM myself, or do I need to take my vehicle to a professional mechanic?
You may be able to reset the code using an OBDII scanner if you have the necessary knowledge and tools. However, if the underlying issue is not addressed, the code may reappear, so it's advisable to consult a professional mechanic for a thorough diagnosis and repair.
7. How much does it typically cost to repair OBDII code B1B79 RAM associated with the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low?
The cost of repair can vary depending on the specific cause of the issue. It may range from a few hundred dollars for sensor replacement to over a thousand dollars if extensive wiring repairs or module replacement are required.
8. Are there any DIY tips for troubleshooting OBDII code B1B79 RAM for the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low?
DIY tips may include checking for loose or damaged wiring under the passenger seat, ensuring all connectors are securely plugged in, and using dielectric grease to protect connections from moisture and corrosion.
9. Will OBDII code B1B79 RAM for the Passenger Seat Weight Sensor 3 Left Front Input Circuit Low affect the vehicle's overall performance?
This particular code is related to the passenger airbag system and may not directly impact the vehicle's performance. However, it is crucial to address the issue promptly to ensure the proper functioning of the safety systems.
10. How can I prevent OBDII code B1B79 RAM from recurring after repair?
To prevent the code from reoccurring, ensure that all repairs are performed correctly, use quality replacement parts, and periodically inspect the passenger seat sensor system for any signs of wear or damage. Regular maintenance can help avoid future issues with the airbag system.
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