B1349 Code - Driver Front Airbag Short to Battery
Quick Answer
When the ignition switch is turned to ON, the Sensing and Diagnostic Module (SDM) will perform turn-on test to diagnose critical malfunctions within SDM itself. Common causes include Faulty Driver Front Airbag, Driver Front Airbag harness is open or shorted, Driver Front Airbag 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
- B1349 indicates Driver Front Airbag Short to Battery.
- Common causes
- Common causes include Faulty Driver Front Airbag, Driver Front Airbag harness is open or shorted, Driver Front Airbag 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.
Code B1349 Description
Upon passing these test ignition and deployment loop voltages are measured to ensure that they are within their normal voltage ranges. The SDM monitors the voltages at the driver low and the passenger low to detect shorts to ground or voltage in the deploy loops.
The SDM checks the wiring connection to the driver airbag module by letting the infinitesimal current flow through the internal circuit and verify the resistance.
What are the Possible Causes of the DTC B1349?
- Faulty Driver Front Airbag
- Driver Front Airbag harness is open or shorted
- Driver Front Airbag circuit poor electrical connection
- Faulty Clockspring
How to Fix the DTC B1349?
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 B1349 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.
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Information for Specific Makes
- B1349 Buick — Driver Front Airbag Short to Battery
- B1349 Cadillac — Driver Front Airbag Short to Battery
- B1349 Chevrolet — Driver Front Airbag Short to Battery
- B1349 Ford — Heated Backlite Relay Short to Battery
- B1349 GMC — Driver Front Airbag Short to Battery
- B1349 Hyundai — Driver-Side Air Bag Module First Stage Short To Battery
- B1349 Infiniti — Front Door Satellite Sensor Left Communication Error
- B1349 KIA — Driver-Side Air Bag Module First Stage Short To Battery
- B1349 Lincoln — Heated Backlite Relay Short to Battery
- B1349 Mercury — Heated Backlite Relay Short to Battery
- B1349 Nissan — Front Door Satellite Sensor Left Communication Error
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 B1349 Code
1. What are common symptoms of OBDII code B1349 (Driver Front Airbag Short to Battery)?
- Common symptoms include the airbag warning light illuminated on the dashboard, erratic behavior of the airbag system, and potential non-deployment of the driver front airbag during a collision.
2. What are possible causes of the OBDII code B1349?
- Possible causes may include a short circuit in the wiring harness leading to the driver front airbag, a malfunctioning airbag control module, or a faulty clock spring.
3. How can I diagnose the OBDII code B1349 related to the driver front airbag short to battery?
- Diagnosing this code typically involves using a diagnostic scanner to retrieve the specific fault code and then inspecting the wiring, connectors, and components related to the driver front airbag system for any visible damage or issues.
4. Is it safe to continue driving with the OBDII code B1349 present?
- It is not recommended to continue driving with the OBDII code B1349 present, as it indicates a potential issue with the driver front airbag system, which could compromise your safety in the event of an accident.
5. How can I repair the OBDII code B1349 related to the driver front airbag short to battery?
- Repairing this code typically involves addressing the root cause of the short circuit or electrical issue, which may require repairing or replacing damaged wiring, connectors, or components in the driver front airbag system.
6. Can resetting the OBDII code B1349 clear the issue permanently?
- Simply resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the driver front airbag short to battery. It is essential to diagnose and repair the problem to ensure proper airbag functionality.
7. Are there any safety precautions to consider when working on the driver front airbag system related to code B1349?
- It is crucial to disconnect the vehicle's battery and wait for the specified time before working on the airbag system to prevent accidental deployment, which can cause serious injury.
8. Can a DIY enthusiast fix the OBDII code B1349 issue on their own?
- While some basic diagnostic and repair tasks may be within reach for DIY enthusiasts, dealing with the driver front airbag system and related codes like B1349 often requires specialized knowledge and tools best handled by a professional technician.
9. How much does it typically cost to repair the OBDII code B1349 (Driver Front Airbag Short to Battery)?
- The cost of repairing this code can vary depending on the specific cause of the issue, the labor rates in your area, and whether any components need to be replaced. It is advisable to consult with a mechanic for an accurate estimate.
10. Can the OBDII code B1349 be a recurring issue even after repair?
- If the root cause of the driver front airbag short to battery issue is not properly addressed during the repair, there is a possibility that the code B1349 may reappear. It is essential to ensure a thorough diagnosis and repair to prevent recurrence.
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