B1158 Scion Code - Front Airbag Sensor LH Malfunction
Quick Answer
The Front Airbag Sensor (Left Side) circuit consists of the Airbag Sensor Assembly and Front Airbag Sensor LH. Common causes include Faulty Front Airbag Sensor (Left Side), Front Airbag Sensor harness is open or shorted, Front Airbag Sensor 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
- B1158 Scion indicates Front Airbag Sensor LH Malfunction.
- Common causes
- Common causes include Faulty Front Airbag Sensor (Left Side), Front Airbag Sensor harness is open or shorted, Front Airbag Sensor 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 B1158 Scion Description
What are the Possible Causes of the DTC B1158 Scion?
- Faulty Front Airbag Sensor (Left Side)
- Front Airbag Sensor harness is open or shorted
- Front Airbag Sensor circuit poor electrical connection
- Faulty Airbag Sensor Assembly
How to Fix the DTC B1158 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 B1158 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 B1158 Scion Code
1. What are common symptoms of OBDII code B1158 in a Scion related to the Front Airbag Sensor LH Malfunction?
- Common symptoms include the airbag warning light illuminating on the dashboard and a potential loss of functionality in the front left airbag system.
2. What could cause the Front Airbag Sensor LH Malfunction in a Scion triggering OBDII code B1158?
- The malfunction may be caused by a faulty front airbag sensor LH, damaged wiring or connectors, or issues with the airbag control module.
3. How serious is the Front Airbag Sensor LH Malfunction OBDII code B1158 in a Scion?
- This code indicates a malfunction in the front left airbag sensor, which is a critical safety component. It is important to address this issue promptly to ensure proper airbag functionality in case of an accident.
4. Can I continue driving my Scion with OBDII code B1158 related to the Front Airbag Sensor LH Malfunction?
- It is not recommended to drive the vehicle with a malfunctioning airbag sensor, as it can compromise the effectiveness of the airbag system in the event of a collision. Seek professional repair immediately.
5. How can I diagnose and repair OBDII code B1158 for the Front Airbag Sensor LH Malfunction in my Scion?
- Diagnosing and repairing this code typically involves using a scan tool to identify the specific issue with the front left airbag sensor, checking wiring and connectors for damage, and replacing any faulty components as needed.
6. Are there any DIY tips for troubleshooting OBDII code B1158 related to the Front Airbag Sensor LH Malfunction in a Scion?
- While basic troubleshooting such as checking for loose connections or damaged wiring can be done by DIY enthusiasts, diagnosing and repairing airbag system issues often require specialized tools and expertise best handled by professional technicians.
7. Is there a risk of the airbags deploying unexpectedly with OBDII code B1158 for the Front Airbag Sensor LH Malfunction in a Scion?
- Typically, a malfunctioning airbag sensor is more likely to cause the airbags not to deploy in a collision rather than deploying unexpectedly. However, it is crucial to have the issue addressed promptly to ensure proper airbag functionality.
8. Can resetting the OBDII code B1158 related to the Front Airbag Sensor LH Malfunction in a Scion fix the issue?
- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the Front Airbag Sensor LH Malfunction. Proper diagnosis and repair are necessary to resolve the issue effectively.
9. How much does it cost to repair OBDII code B1158 for the Front Airbag Sensor LH Malfunction in a Scion?
- The cost of repairing this code can vary depending on the specific cause of the malfunction, the labor rates of the repair shop, and the cost of any replacement parts needed. It is recommended to obtain a diagnosis and estimate from a trusted mechanic.
10. Is the Front Airbag Sensor LH Malfunction covered under any warranty for a Scion?
- Depending on the age and mileage of the vehicle, the Front Airbag Sensor LH Malfunction may be covered under the manufacturer's warranty or an extended warranty. Check with your Scion dealership or warranty provider for specific coverage details.
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