B1935 Code - Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault

Quick Answer

The diagnostic trouble code B1935 indicates an issue with the airbag passenger inflator circuit, specifically a low resistance on the squib fault. Common causes include Wiring or connector damage or corrosion in the airbag system, Faulty passenger airbag squib, Poor electrical connections in the airbag system. 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 indicates Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault.

Common causes

Common causes include Wiring or connector damage or corrosion in the airbag system, Faulty passenger airbag squib, Poor electrical connections in the airbag system.

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.

• Description
• Common Causes
• Symptoms
• How To Fix
• Cost to Fix
• FAQs
• Comments
• Add Comment

Common Causes of B1935

Symptoms of B1935

How to Fix B1935

Cost to Fix B1935

Need more information about the B1935 code?

Need more information on how to fix the B1935 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1935 code diagnosed by a professional: Find a repair shop in your area

Code B1935 Information for Specific Makes

• B1935 Buick — Left Seat Back Heater Circuit
• B1935 Cadillac — Left Seat Back Heater Circuit
• B1935 Chevrolet — Left Seat Back Heater Circuit
• B1935 Ford — Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault
• B1935 GMC — Left Seat Back Heater Circuit
• B1935 Lincoln — Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault
• B1935 Mazda — Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault
• B1935 Mercury — Air Bag Passenger Inflator Circuit Resistance Low On Squib Fault

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 B1935 Code

1. What are common symptoms of OBDII code B1935?

The common symptoms of OBDII code B1935 include the airbag warning light illuminating on the dashboard and potential issues with the passenger-side airbag system.

2. What causes the OBDII code B1935 to trigger?

The OBDII code B1935 is triggered when the airbag passenger inflator circuit resistance is detected as low on the squib fault, indicating a potential problem with the airbag system's electrical circuit.

3. How serious is OBDII code B1935?

OBDII code B1935 should be taken seriously as it indicates a fault in the passenger-side airbag system, which could compromise the effectiveness of the airbag in the event of a collision.

4. Can I still drive my vehicle with OBDII code B1935?

It is not recommended to drive the vehicle with OBDII code B1935 present, as the passenger-side airbag system may not deploy correctly in case of an accident. It is advisable to address the issue promptly.

5. What are some DIY repair tips for OBDII code B1935?

DIY repair tips for OBDII code B1935 may include checking the wiring and connections related to the passenger-side airbag system, ensuring they are secure and free from damage. However, it is recommended to seek professional assistance for accurate diagnosis and repair.

6. How can I reset OBDII code B1935?

To reset OBDII code B1935, you will need an OBDII scanner to clear the code after addressing the underlying issue with the passenger-side airbag system. Simply clearing the code without fixing the problem will cause it to reappear.

7. Is it safe to reset OBDII code B1935 without fixing the issue?

It is not safe to reset OBDII code B1935 without fixing the underlying problem in the passenger-side airbag system. Resetting the code without addressing the fault may lead to safety risks in case of an accident.

8. How much does it cost to repair OBDII code B1935?

The cost of repairing OBDII code B1935 can vary depending on the root cause of the issue. It is advisable to consult a professional mechanic to diagnose the problem accurately and provide an estimate for the repair.

9. Can OBDII code B1935 be intermittent?

Yes, OBDII code B1935 can be intermittent, meaning the issue with the airbag passenger inflator circuit resistance may come and go. However, it is crucial to address the problem even if it appears intermittently to ensure the safety of the airbag system.

10. How long does it take to repair OBDII code B1935?

The repair time for OBDII code B1935 can vary based on the complexity of the issue and the availability of replacement parts. It is recommended to consult a professional mechanic for an accurate assessment of the repair timeline.