B1935 Mercury Code - Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault
Quick Answer
The B1935 diagnostic trouble code (DTC) for Mercury vehicles indicates a problem with the airbag passenger inflator circuit, specifically a low resistance on the squib fault. Common causes include Damaged wiring or connectors in the airbag system, Faulty squib within the airbag inflator, 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
- B1935 Mercury indicates Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault.
- Common causes
- Common causes include Damaged wiring or connectors in the airbag system, Faulty squib within the airbag inflator, 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 B1935 Mercury Description
The B1935 diagnostic trouble code (DTC) for Mercury vehicles indicates a problem with the airbag passenger inflator circuit, specifically a low resistance on the squib fault. The squib is a component within the airbag system that initiates the inflation process in the event of a collision. When the resistance in this circuit is detected as being too low, it can compromise the proper deployment of the airbag, potentially putting the safety of the vehicle occupants at risk.
Common Causes of B1935 Mercury
- Damaged wiring or connectors in the airbag system
- Faulty squib within the airbag inflator
- Issues with the airbag control module
- Corrosion or poor connections in the airbag circuit
- Impact or collision that caused damage to the airbag system components
Symptoms of B1935 Mercury
- Illumination of the airbag warning light on the dashboard
- Inability to turn off the airbag warning light even after resetting
- Diagnostic trouble code B1935 stored in the vehicle's computer system
- Failure of the passenger airbag to deploy during a crash test
- Intermittent or inconsistent airbag deployment during testing
How to Fix B1935 Mercury
- Begin by diagnosing the specific cause of the low resistance in the airbag passenger inflator circuit using a diagnostic scanner.
- Inspect the wiring and connectors in the airbag system for any damage, corrosion, or loose connections. Repair or replace as needed.
- Test the squib within the airbag inflator to determine if it is functioning correctly. Replace if faulty.
- Check the airbag control module for any faults or errors. Reset or replace if necessary.
- Clear the DTC from the vehicle's computer system and perform a test to ensure the airbag system is functioning properly.
Cost to Fix B1935 Mercury
The typical repair costs for addressing a B1935 diagnostic trouble code in a Mercury vehicle can range from $200 to $500, depending on the specific cause of the issue and the parts that need to be replaced. This estimate includes the cost of parts such as wiring, connectors, squib, and potentially the airbag control module, as well as labor costs for diagnosis and repair. It's important to note that actual repair costs may vary based on the location of the repair shop, the vehicle's make and model, and the extent of the damage to the airbag system components. It's recommended to consult with a qualified mechanic or dealership for a more accurate cost estimate based on your specific circumstances.
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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 B1935 Mercury Code
1. What are common symptoms of OBDII code B1935 in a Mercury related to the Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault?
- The common symptoms include the airbag warning light illuminating on the dashboard and potential non-deployment of the passenger airbag during a collision.
2. What are the possible causes of the OBDII code B1935 in a Mercury?
- The code B1935 can be triggered by issues such as damaged wiring or connectors in the passenger airbag system, a faulty airbag inflator module, or a defective airbag squib.
3. How can I diagnose the cause of OBDII code B1935 related to the Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault in my Mercury?
- Diagnosing the issue may involve using a diagnostic scan tool to retrieve the specific fault code, inspecting the wiring and connectors for damage, and testing the airbag inflator module and squib for proper functionality.
4. Can I continue driving my Mercury with OBDII code B1935 present?
- It is not recommended to drive the vehicle with an active airbag fault code like B1935, as it may compromise the safety of the passenger in the event of a collision.
5. How can I repair OBDII code B1935 Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault in my Mercury?
- Repairing the issue may involve repairing or replacing damaged wiring and connectors, replacing the faulty airbag inflator module or squib, and clearing the fault code with a diagnostic tool after the repair is completed.
6. Are there any safety precautions to be aware of when working on the airbag system to resolve OBDII code B1935 in my Mercury?
- When working on the airbag system, it is crucial to disconnect the vehicle's battery and wait at least 10 minutes before starting any repairs to prevent accidental airbag deployment.
7. How much does it typically cost to repair OBDII code B1935 related to the Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault in a Mercury?
- The cost of repairing OBDII code B1935 can vary depending on the exact cause of the issue and the extent of the repairs needed. It is recommended to consult with a professional technician for an accurate estimate.
8. Can I reset the OBDII code B1935 Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault in my Mercury without fixing the underlying issue?
- While you can clear the fault code with a diagnostic tool, it is important to address the root cause of the problem to ensure the safety and functionality of the airbag system in your Mercury.
9. Is it possible to prevent OBDII code B1935 from occurring in my Mercury in the future?
- Regular maintenance and inspections of the airbag system in your Mercury can help prevent issues like code B1935. Promptly addressing any warning lights or unusual symptoms can also help avoid more significant problems.
10. Can I attempt to repair OBDII code B1935 Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault in my Mercury myself, or should I seek professional help?
- Repairing airbag-related fault codes like B1935 can be complex and potentially dangerous if not done correctly. It is recommended to seek the expertise of a qualified technician to diagnose and repair the issue to ensure the safety of the airbag system in your Mercury.
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