B1149 Scion Code - Front Airbag Sensor LH Circuit Malfunction
Quick Answer
The Front Airbag Sensor (Left Side) circuit consists of the diagnosis circuit and the frontal deceleration sensor, etc. Common causes include Faulty Front Airbag Sensor (Left Side), Front Airbag Sensor (Left Side) harness is open or shorted, Front Airbag Sensor (Left Side) 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
- B1149 Scion indicates Front Airbag Sensor LH Circuit Malfunction.
- Common causes
- Common causes include Faulty Front Airbag Sensor (Left Side), Front Airbag Sensor (Left Side) harness is open or shorted, Front Airbag Sensor (Left Side) 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 B1149 Scion Description
What are the Possible Causes of the DTC B1149 Scion?
- Faulty Front Airbag Sensor (Left Side)
- Front Airbag Sensor (Left Side) harness is open or shorted
- Front Airbag Sensor (Left Side) circuit poor electrical connection
- Faulty Airbag Sensor Assembly Center
How to Fix the DTC B1149 Scion?
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 B1149 Scion 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 B1149 Scion Code
1. What are common symptoms of the OBDII code B1149 in a Scion related to the Front Airbag Sensor LH Circuit Malfunction?
- Common symptoms may include an illuminated airbag warning light on the dashboard and a potential inability for the front airbag on the driver's side to deploy in case of an accident.
2. What are some possible causes of the Front Airbag Sensor LH Circuit Malfunction in a Scion triggering the B1149 code?
- Potential causes can include damaged wiring or connectors leading to the front airbag sensor LH, a faulty front airbag sensor LH, or issues with the airbag control module.
3. How can I diagnose the Front Airbag Sensor LH Circuit Malfunction in my Scion if the B1149 code is triggered?
- To diagnose the issue, it is recommended to use an OBDII scanner to retrieve the specific B1149 code, visually inspect the wiring and connectors leading to the front airbag sensor LH, and perform any necessary continuity or resistance tests.
4. Are there any safety precautions to consider when working on the Front Airbag Sensor LH Circuit Malfunction related to the B1149 code in a Scion?
- It is crucial to disconnect the vehicle's battery and wait for at least 10-15 minutes before working on any airbag-related components to prevent accidental deployment and ensure safety.
5. Can I repair the Front Airbag Sensor LH Circuit Malfunction triggering the B1149 code in my Scion by myself, or should I seek professional help?
- While diagnosing and repairing the issue may be possible for experienced individuals with the right tools and knowledge, due to the critical nature of airbag systems, it is recommended to seek professional help for accurate diagnosis and proper repair.
6. Will driving my Scion with the B1149 code related to the Front Airbag Sensor LH Circuit Malfunction pose any risks?
- Driving with the B1149 code unresolved may put you at risk in case of an accident, as the front airbag on the driver's side may not deploy as intended, compromising the vehicle's occupant protection system.
7. How much can I expect to pay for repairing the Front Airbag Sensor LH Circuit Malfunction causing the B1149 code in my Scion?
- The cost of repair can vary depending on the exact cause of the issue, parts needed, and labor costs. It is advisable to obtain quotes from reputable mechanics or dealerships for an accurate estimate.
8. Are there any recalls or service bulletins related to the B1149 code and the Front Airbag Sensor LH Circuit Malfunction in Scion vehicles?
- It is recommended to check with authorized Scion dealerships or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any recalls or service bulletins related to this specific issue.
9. Can resetting the OBDII system clear the B1149 code linked to the Front Airbag Sensor LH Circuit Malfunction in my Scion?
- While resetting the OBDII system may temporarily clear the code, it is essential to address the underlying issue causing the Front Airbag Sensor LH Circuit Malfunction to ensure proper functionality and safety.
10. How can I prevent the recurrence of the B1149 code associated with the Front Airbag Sensor LH Circuit Malfunction in my Scion?
- To prevent the code from reoccurring, it is crucial to address any underlying wiring issues, ensure proper maintenance of the airbag system, and promptly address any airbag warning lights or related symptoms. Regular inspections and servicing can help maintain the system's integrity.
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