B1049 Code - Driver Air Bag Module Open
Quick Answer
The driver air bag module is dual stage and wired to the air bag diagnosis sensor unit through the spiral cable. Common causes include Faulty Driver Air Bag, Faulty Spiral Cable, Driver Air Bag harness is open. 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
- B1049 indicates Driver Air Bag Module Open.
- Common causes
- Common causes include Faulty Driver Air Bag, Faulty Spiral Cable, Driver Air Bag harness is open.
- 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 B1049 Description
What are the Possible Causes of the DTC B1049?
- Faulty Driver Air Bag
- Faulty Spiral Cable
- Driver Air Bag harness is open
- Driver Air Bag circuit poor electrical connection
How to Fix the DTC B1049?
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.
Code Tech Notes
1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the driver air bag module.
4. Replace the spiral cable.
5. Replace the air bag diagnosis sensor unit.
6. Replace the related harness.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1049 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
- B1049 Infiniti — Driver Air Bag Module Open
- B1049 Nissan — Driver Air Bag Module Open
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 B1049 Code
1. What are common symptoms of OBDII code B1049 - Driver Air Bag Module Open?
The common symptoms of this code include the airbag warning light illuminating on the dashboard and a possible loss of functionality of the driver's airbag.
2. What can cause the OBDII code B1049 - Driver Air Bag Module Open?
This code is typically caused by a fault in the driver's airbag module, such as a wiring issue, a loose connection, or a malfunctioning airbag module itself.
3. How serious is the OBDII code B1049 - Driver Air Bag Module Open?
This code is serious as it indicates a potential problem with the driver's airbag system, which is a critical safety feature in the event of a collision. It is important to address this issue promptly.
4. Can I still drive my vehicle with the OBDII code B1049 - Driver Air Bag Module Open?
It is not recommended to drive the vehicle with this code present, as the driver's airbag may not deploy in the event of an accident, compromising your safety.
5. How can I diagnose the OBDII code B1049 - Driver Air Bag Module Open?
Diagnosing this code typically requires a professional OBDII scanner to read the fault codes and further inspection of the driver's airbag system components.
6. What is the typical repair for the OBDII code B1049 - Driver Air Bag Module Open?
The repair for this code usually involves inspecting and repairing any wiring issues, connectors, or replacing the driver's airbag module if necessary.
7. Can I reset the OBDII code B1049 - Driver Air Bag Module Open on my own?
While you can clear the fault code with an OBDII scanner, it is crucial to address the underlying issue causing the code to prevent it from reoccurring.
8. How much does it cost to repair the OBDII code B1049 - Driver Air Bag Module Open?
The cost of repair can vary depending on the specific cause of the issue. It is recommended to consult a professional for an accurate diagnosis and cost estimate.
9. Are there any safety precautions I should take if I suspect the OBDII code B1049 - Driver Air Bag Module Open?
If you suspect an issue with the driver's airbag system, it is essential to prioritize your safety and have the vehicle inspected by a qualified technician as soon as possible.
10. Can the OBDII code B1049 - Driver Air Bag Module Open be intermittent?
Yes, it is possible for the code to be intermittent, especially if the issue is related to a loose connection or intermittent wiring problem. It is still important to address the underlying cause to ensure proper airbag functionality.
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