B0135 Lexus Code - Short Left Seat Belt Pretensioner Squib Circuit
Quick Answer
The left seat belt pretensioner squib circuit consists of the air bag center sensor and right seat belt pretensioner. Common causes include Faulty Left Seat Belt Pretensioner, Left Seat Belt Pretensioner harness is open or shorted, Left Seat Belt Pretensioner 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
- B0135 Lexus indicates Short Left Seat Belt Pretensioner Squib Circuit.
- Common causes
- Common causes include Faulty Left Seat Belt Pretensioner, Left Seat Belt Pretensioner harness is open or shorted, Left Seat Belt Pretensioner 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 B0135 Lexus Description
What are the Possible Causes of the DTC B0135 Lexus?
- Faulty Left Seat Belt Pretensioner
- Left Seat Belt Pretensioner harness is open or shorted
- Left Seat Belt Pretensioner circuit poor electrical connection
- Faulty Air Bag Control Module
How to Fix the DTC B0135 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 B0135 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 B0135 Lexus Code
1. What are the common symptoms of OBDII code B0135 in a Lexus related to the Short Left Seat Belt Pretensioner Squib Circuit?
- Common symptoms include the airbag warning light staying illuminated on the dashboard and potential issues with the left side seat belt pretensioner.
2. What are the possible causes of the Short Left Seat Belt Pretensioner Squib Circuit OBDII code B0135 in a Lexus?
- Causes may include damaged wiring, a faulty seat belt pretensioner, a blown fuse, or a malfunctioning control module.
3. How can I diagnose the Short Left Seat Belt Pretensioner Squib Circuit issue in my Lexus triggering OBDII code B0135?
- Diagnosing this issue typically involves using an OBDII scanner to retrieve the specific B0135 code and then inspecting the seat belt pretensioner wiring and connections for any visible damage.
4. Is it safe to drive my Lexus with the Short Left Seat Belt Pretensioner Squib Circuit issue triggering OBDII code B0135?
- It is not recommended to drive the vehicle with this issue, as it may compromise the effectiveness of the left side seat belt pretensioner in the event of a collision.
5. How can I repair the Short Left Seat Belt Pretensioner Squib Circuit problem causing OBDII code B0135 in my Lexus?
- Repairing this issue typically involves repairing or replacing damaged wiring, fixing faulty connections, replacing the seat belt pretensioner if necessary, and resetting the airbag system.
6. Can I reset the OBDII code B0135 related to the Short Left Seat Belt Pretensioner Squib Circuit in my Lexus without fixing the underlying issue?
- While you can clear the code using an OBDII scanner, it is crucial to address the root cause of the problem to ensure the safety and functionality of the seat belt pretensioner system.
7. How much does it cost to repair the Short Left Seat Belt Pretensioner Squib Circuit issue causing OBDII code B0135 in a Lexus?
- Repair costs can vary depending on the extent of the damage, parts needed for replacement, and labor charges. It is advisable to consult a professional mechanic for an accurate estimate.
8. Are there any preventive maintenance tips to avoid triggering the Short Left Seat Belt Pretensioner Squib Circuit OBDII code B0135 in my Lexus?
- Regularly inspecting the seat belt pretensioner wiring, avoiding rough handling of the seat belt, and ensuring proper maintenance of the airbag system can help prevent this issue.
9. Can I fix the Short Left Seat Belt Pretensioner Squib Circuit problem causing OBDII code B0135 in my Lexus myself, or should I seek professional help?
- While some DIY enthusiasts may attempt to diagnose and repair this issue, it is recommended to consult a qualified mechanic or technician for proper diagnosis and repair to ensure safety and effectiveness.
10. Will the Short Left Seat Belt Pretensioner Squib Circuit issue triggering OBDII code B0135 affect the overall safety of my Lexus during driving?
- Yes, this issue can impact the proper function of the left side seat belt pretensioner, which plays a crucial role in restraining occupants during a collision, hence compromising overall safety.
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