B1153 Lexus Code - Seat Position Airbag Sensor Circuit Malfunction
Quick Answer
The Seat Position Airbag Sensor Circuit consists of the Airbag Sensor Assembly Center and the Seat Position Airbag Sensor. Common causes include Faulty Seat Position Airbag Sensor, Seat Position Airbag Sensor harness is open or shorted, Seat Position 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
- B1153 Lexus indicates Seat Position Airbag Sensor Circuit Malfunction.
- Common causes
- Common causes include Faulty Seat Position Airbag Sensor, Seat Position Airbag Sensor harness is open or shorted, Seat Position 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 B1153 Lexus Description
What are the Possible Causes of the DTC B1153 Lexus?
- Faulty Seat Position Airbag Sensor
- Seat Position Airbag Sensor harness is open or shorted
- Seat Position Airbag Sensor circuit poor electrical connection
- Faulty Airbag Sensor Assembly Center
How to Fix the DTC B1153 Lexus?
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 B1153 Lexus 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 B1153 Lexus Code
1. What are common symptoms of OBDII code B1153 in a Lexus related to the seat position airbag sensor circuit malfunction?
The common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the proper deployment of the airbags in case of an accident.
2. What are the possible causes of the B1153 code in a Lexus indicating a seat position airbag sensor circuit malfunction?
Possible causes include a faulty seat position sensor, damaged wiring or connectors in the airbag system, or issues with the airbag control module.
3. How can I diagnose the seat position airbag sensor circuit malfunction in my Lexus triggering the B1153 code?
Diagnosis involves using an OBDII scanner to retrieve the specific B1153 code, inspecting the seat position sensor and related wiring for damage, and testing the airbag system components for proper functionality.
4. Can I continue driving my Lexus with the B1153 code related to the seat position airbag sensor circuit malfunction?
It is not recommended to drive the vehicle with an active airbag system fault code, as it can compromise the effectiveness of the airbags in case of an accident. Prompt diagnosis and repair are advised.
5. Is it possible to reset the B1153 code related to the seat position airbag sensor circuit malfunction in a Lexus without fixing the underlying issue?
Resetting the code without addressing the root cause will only temporarily clear the warning light, and the issue will likely reoccur. It is essential to diagnose and repair the problem to ensure proper airbag functionality.
6. Are there any DIY repair tips for addressing the B1153 code in a Lexus due to a seat position airbag sensor circuit malfunction?
DIY repair tips may include checking and cleaning the seat position sensor connectors, inspecting and repairing damaged wiring, and resetting the airbag system after making necessary repairs.
7. How much does it typically cost to repair the B1153 code related to the seat position airbag sensor circuit malfunction in a Lexus?
The cost of repair can vary depending on the specific issue causing the code, labor rates, and the need for replacement parts. It is recommended to consult a professional mechanic for an accurate estimate.
8. Can a Lexus dealership service department help with diagnosing and repairing the B1153 code related to the seat position airbag sensor circuit malfunction?
Yes, Lexus dealership service departments have access to specialized tools, diagnostic equipment, and trained technicians who can effectively diagnose and repair issues related to the seat position airbag sensor circuit malfunction.
9. Are there any safety concerns associated with ignoring the B1153 code indicating a seat position airbag sensor circuit malfunction in a Lexus?
Ignoring the B1153 code can pose a safety risk as it may prevent the airbags from deploying correctly in the event of a collision, potentially leading to increased injury risk for vehicle occupants. It is crucial to address the issue promptly.
10. How long does it typically take to repair the B1153 code related to the seat position airbag sensor circuit malfunction in a Lexus?
The repair time can vary depending on the specific cause of the code and the extent of the necessary repairs. Simple fixes like connector cleaning may take less time, while more complex issues could require additional diagnostic and repair time.
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