B1349 Cadillac 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 Cadillac 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 Cadillac 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 Cadillac?
- 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 Cadillac?
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 Cadillac 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.
Need more information about the B1349 Cadillac code?
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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 B1349 Cadillac Code
1. What does the OBDII code B1349 mean on a Cadillac?
The B1349 code indicates a "Driver Front Airbag Short to Battery," meaning there is an electrical issue causing the airbag circuit to have an unintended connection to the battery power source.
2. What are the common symptoms of the B1349 code in a Cadillac?
Symptoms include an illuminated airbag warning light on the dashboard, possible malfunction of the driver’s front airbag, and stored trouble codes in the vehicle's control module.
3. What causes the B1349 code to appear in a Cadillac?
The most common causes include damaged or shorted wiring in the airbag circuit, a faulty clock spring, corrosion in connectors, or a failing airbag module.
4. Is it safe to drive with the B1349 code on a Cadillac?
No, it’s not safe. The airbag system may not function properly, which can compromise safety in case of an accident.
5. How do I diagnose the B1349 code on my Cadillac?
Start by scanning the vehicle with an OBDII scanner to confirm the code. Then inspect the wiring, connectors, and clock spring for damage, shorts, or corrosion.
6. Can a loose connector cause the B1349 code?
Yes, a loose or corroded connector in the airbag circuit can cause an electrical short, triggering the B1349 code.
7. How can I fix the B1349 code on a Cadillac?
Repairs may include fixing or replacing damaged wiring, cleaning or repairing corroded connectors, replacing the clock spring, or replacing the airbag module if necessary.
8. What tools are needed to repair the B1349 code on a Cadillac?
You’ll need an OBDII scanner, a multimeter, and basic tools for inspecting and repairing wiring or connectors. In some cases, specialized tools may be needed to replace the clock spring or airbag module.
9. Can the B1349 code reset itself after repairs?
The code may need to be cleared manually with an OBDII scanner after the underlying issue is resolved. In some cases, it might reset automatically if the problem is fixed.
10. Should I take my Cadillac to a professional for the B1349 code?
Yes, if you’re unsure how to safely work with the airbag system, it’s best to consult a professional mechanic, as improper handling can risk accidental airbag deployment.
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