B1B79 Mitsubishi Code - Passenger Seat Weight Sensor 3 Left Front Input Circuit Low
Quick Answer
The B1B79 Mitsubishi diagnostic trouble code (DTC) specifically refers to an issue with the Passenger Seat Weight Sensor 3 Left Front Input Circuit being detected as low. Common causes include Faulty passenger seat weight sensor, Wiring or connection issues in the input 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
- B1B79 Mitsubishi indicates Passenger Seat Weight Sensor 3 Left Front Input Circuit Low.
- Common causes
- Common causes include Faulty passenger seat weight sensor, Wiring or connection issues in the input 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.
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Code B1B79 Mitsubishi Description
The B1B79 Mitsubishi diagnostic trouble code (DTC) specifically refers to an issue with the Passenger Seat Weight Sensor 3 Left Front Input Circuit being detected as low. This sensor is responsible for detecting the weight of the passenger seated in the front passenger seat. The input circuit being low indicates that the sensor is not detecting the expected weight or is malfunctioning in some way. This can lead to a variety of issues related to the vehicle's safety systems, specifically the airbag system.
Common Causes of B1B79 Mitsubishi
- Faulty passenger seat weight sensor
- Wiring or connection issues in the input circuit
- Corrosion or damage to sensor components
- Software or calibration issues with the airbag system
- Impact or damage to the passenger seat affecting sensor operation
Symptoms of B1B79 Mitsubishi
- Airbag warning light illuminated on the dashboard
- Inconsistent or erratic airbag deployment
- Passenger airbag indicator showing incorrect status
- Diagnostic trouble code (DTC) stored in the vehicle's computer system
How to Fix B1B79 Mitsubishi
- Begin by diagnosing the specific cause of the issue using a diagnostic scan tool to retrieve the DTC and further testing of the sensor and circuit.
- Inspect the wiring and connections associated with the passenger seat weight sensor for any damage, corrosion, or loose connections. Repair or replace as necessary.
- Test the passenger seat weight sensor itself for proper operation and replace if found to be faulty.
- Reset the airbag system and clear the DTC from the vehicle's computer system to ensure proper operation.
- Perform a final test to confirm that the issue has been resolved and that the airbag system is functioning correctly.
Cost to Fix B1B79 Mitsubishi
The cost of repairing a B1B79 Mitsubishi code related to the passenger seat weight sensor can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair can range from $100 to $500, with labor costs adding an additional $100 to $300. This can bring the total repair cost to anywhere from $200 to $800. It is essential to consult with a professional mechanic or dealership for a more accurate estimate based on the specific circumstances of your vehicle and location. Labor rates typically range from $80 to $150 per hour, but can vary significantly based on factors like location and shop rates.
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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 Mitsubishi Code
1. What are common symptoms of OBDII code B1B79 in a Mitsubishi related to the passenger seat weight sensor?
The common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the passenger airbag system.
2. What does the OBDII code B1B79 indicate in a Mitsubishi?
The code B1B79 indicates a fault with the Passenger Seat Weight Sensor 3 Left Front Input Circuit being low in the vehicle.
3. What are possible causes of the OBDII code B1B79 in a Mitsubishi?
Possible causes include a malfunctioning passenger seat weight sensor, damaged wiring or connectors, or a faulty airbag control module.
4. How can I diagnose the issue related to the OBDII code B1B79 in my Mitsubishi?
Diagnosis typically involves using an OBDII scanner to retrieve the specific fault code, checking the passenger seat weight sensor and its connections, and inspecting the wiring for any visible damage.
5. Can I continue driving my Mitsubishi with the OBDII code B1B79 present?
It is not recommended to drive the vehicle with the B1B79 code active, as it indicates a potential issue with the passenger airbag system, which could affect its proper functioning in case of an accident.
6. How can I reset the OBDII code B1B79 in my Mitsubishi after repairing the issue?
Once the underlying issue has been fixed, the code can be cleared using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to reset the system.
7. Is it safe to repair the OBDII code B1B79 related to the passenger seat weight sensor on my own?
While some basic troubleshooting steps can be taken by DIY enthusiasts, it is recommended to have the issue diagnosed and repaired by a qualified mechanic or dealership to ensure proper functioning of the airbag system.
8. Will fixing the OBDII code B1B79 in my Mitsubishi be costly?
The cost of repairing the B1B79 code can vary depending on the exact cause of the issue, the parts needed for replacement, and the labor charges. It is advisable to get a few quotes from different mechanics or dealerships.
9. Are there any preventive measures to avoid the OBDII code B1B79 from recurring in my Mitsubishi?
Regularly inspecting and maintaining the passenger seat weight sensor and its connections, avoiding placing heavy objects on the passenger seat, and driving carefully to prevent sudden impacts can help reduce the chances of the code reoccurring.
10. How important is it to address the OBDII code B1B79 in a timely manner in my Mitsubishi?
It is crucial to address the B1B79 code promptly to ensure the proper functioning of the passenger airbag system in the vehicle, as any malfunction in this system can compromise the safety of occupants in case of a collision.
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