B1159 Toyota 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
- B1159 Toyota 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 B1159 Toyota Description
What are the Possible Causes of the DTC B1159 Toyota?
- 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 B1159 Toyota?
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 B1159 Toyota 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 B1159 Toyota Code
1. What are the common symptoms of OBDII code B1159 Toyota (Front Airbag Sensor LH Malfunction)?
The 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 can cause the OBDII code B1159 Toyota to trigger?
The code B1159 is typically triggered by a malfunction in the front left airbag sensor, which may be caused by wiring issues, sensor damage, or corrosion.
3. How serious is the Front Airbag Sensor LH Malfunction code B1159 in a Toyota?
This code indicates a problem in the front airbag system, which is a critical safety feature. It is important to address this issue promptly to ensure the proper functioning of the airbag in case of an accident.
4. Can I continue driving my Toyota with the B1159 code present?
It is not recommended to continue driving the vehicle with the B1159 code active, as it indicates a potential issue with the front airbag sensor that could affect airbag deployment in the event of a collision.
5. How can I diagnose and repair the Front Airbag Sensor LH Malfunction code B1159 in my Toyota?
Diagnosing and repairing the B1159 code typically involves inspecting the front left airbag sensor, checking the wiring for damage, and addressing any corrosion or connection issues. A professional technician can help with a thorough diagnosis and repair.
6. Is it safe to reset the B1159 code without fixing the underlying issue?
Resetting the B1159 code without addressing the underlying problem with the front airbag sensor is not recommended, as it may lead to safety risks in the event of an accident.
7. How much does it cost to repair the Front Airbag Sensor LH Malfunction code B1159 in a Toyota?
The cost of repairing the B1159 code can vary depending on the extent of the issue, the parts needed for replacement, and the labor costs. It is advisable to get a professional assessment for an accurate estimate.
8. Can I prevent the Front Airbag Sensor LH Malfunction code B1159 from occurring?
While some causes of the B1159 code may be related to wear and tear, ensuring regular maintenance checks and prompt repairs of any airbag system issues can help prevent this code from occurring.
9. Will the Front Airbag Sensor LH Malfunction code B1159 affect the overall safety of my Toyota?
Yes, the B1159 code indicates a problem with the front airbag sensor, which is a crucial safety component in the vehicle. It is important to address this issue promptly to maintain the overall safety of the vehicle.
10. How long does it typically take to repair the Front Airbag Sensor LH Malfunction code B1159 in a Toyota?
The repair time for the B1159 code can vary depending on the exact cause of the issue and the extent of the repair needed. In general, it may take a few hours to a full day to diagnose and repair the problem.
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