B1346 GMC Code - Driver Front Airbag Resistance Too High
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
- B1346 GMC indicates Driver Front Airbag Resistance Too High.
- 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 B1346 GMC 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 B1346 GMC?
- 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 B1346 GMC?
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 B1346 GMC 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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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 B1346 GMC Code
1. What are the common symptoms of OBDII code B1346 GMC (Driver Front Airbag Resistance Too High)?
- The common symptoms include the airbag warning light staying illuminated on the dashboard and a message indicating an issue with the driver front airbag system.
2. What are some possible causes of OBDII code B1346 GMC?
- Potential causes of this code may include a faulty driver front airbag module, damaged wiring or connectors in the airbag system, or issues with the airbag sensor.
3. How serious is the OBDII code B1346 GMC (Driver Front Airbag Resistance Too High)?
- This code indicates a potential safety issue with the driver front airbag system, so it is crucial to address it promptly to ensure the airbag functions correctly in case of an accident.
4. Can I continue driving my vehicle with OBDII code B1346 GMC present?
- It is not recommended to drive the vehicle with this code active, as it means the driver front airbag system may not deploy properly in the event of a collision.
5. How can I diagnose and repair OBDII code B1346 GMC?
- Diagnosing and repairing this code typically involves inspecting the driver front airbag system for any faults, testing the airbag module and sensor, and addressing any wiring or connector issues.
6. Can I reset the OBDII code B1346 GMC on my own?
- While you can clear the code with an OBDII scanner, it is essential to address the underlying issue causing the code to prevent it from reoccurring.
7. Are there any DIY tips for fixing OBDII code B1346 GMC?
- DIY tips may include checking and securing the wiring connections in the driver front airbag system, but it is recommended to have a professional inspect and repair the system for safety reasons.
8. How much does it cost to repair OBDII code B1346 GMC?
- The cost of repairing this code can vary depending on the specific issue causing it, but it may involve replacing the driver front airbag module, repairing wiring, or fixing other components in the airbag system.
9. Can a mechanic help me with OBDII code B1346 GMC even if I don't drive a GMC vehicle?
- Yes, a qualified mechanic can diagnose and repair OBDII codes across different vehicle makes and models, including addressing the Driver Front Airbag Resistance Too High issue on non-GMC vehicles.
10. Is it necessary to have the OBDII code B1346 GMC fixed immediately?
- Yes, it is crucial to address this code promptly to ensure the proper functioning of the driver front airbag system and maintain the safety of the vehicle occupants in the event of a collision.
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