B1346 Cadillac 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 Cadillac 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 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 B1346 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 B1346 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 B1346 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.
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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 Cadillac Code
1. What are the common symptoms of OBDII code B1346 in a Cadillac indicating "Driver Front Airbag Resistance Too High"?
- The common symptoms include the airbag warning light illuminating on the dashboard and a possible fault message related to the driver front airbag system.
2. What are the potential causes of OBDII code B1346 in a Cadillac related to high resistance in the driver front airbag system?
- The code B1346 can be triggered by issues such as faulty wiring connections, damaged wiring harness, a defective clock spring, or a malfunctioning driver front airbag.
3. How can I diagnose the root cause of OBDII code B1346 in my Cadillac without specialized equipment?
- You can visually inspect the wiring connections and harness for any damage, check for loose connections, and ensure all airbag components are securely in place.
4. Is it safe to drive my Cadillac with OBDII code B1346 indicating a problem with the driver front airbag resistance?
- It is not recommended to drive the vehicle with an active airbag fault code, as it may compromise the proper functioning of the airbag system in the event of a collision.
5. Can I reset OBDII code B1346 in my Cadillac by disconnecting the battery?
- While disconnecting the battery may clear the code temporarily, it is essential to diagnose and repair the underlying issue causing the high resistance in the driver front airbag system to prevent the code from reoccurring.
6. How much does it typically cost to repair OBDII code B1346 in a Cadillac at a dealership or repair shop?
- The cost of repairing OBDII code B1346 can vary depending on the root cause of the issue, but it may involve replacing damaged wiring, repairing connections, or replacing faulty airbag components, which can range from a few hundred to over a thousand dollars.
7. Are there any safety precautions I should be aware of when working on the driver front airbag system in my Cadillac to address code B1346?
- It is crucial to disconnect the vehicle's battery and wait for at least 15 minutes before working on the airbag system to prevent accidental deployment and ensure safety.
8. Can a DIY enthusiast with basic automotive knowledge repair OBDII code B1346 in a Cadillac at home?
- While some basic troubleshooting like checking connections and inspecting wiring can be done at home, it is recommended to consult a professional technician for a comprehensive diagnosis and repair of airbag system issues.
9. Will OBDII code B1346 in a Cadillac reset itself after the underlying issue is fixed?
- In most cases, once the underlying cause of the high resistance in the driver front airbag system is repaired, the code B1346 should reset itself after a few drive cycles if the issue is resolved successfully.
10. How can I prevent OBDII code B1346 from appearing again in my Cadillac after it has been repaired?
- To prevent the recurrence of code B1346, ensure all airbag system components are properly installed, wiring connections are secure, and conduct regular maintenance checks to detect any potential issues early.
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