B0135 Toyota 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 Toyota 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 Toyota Description
What are the Possible Causes of the DTC B0135 Toyota?
- 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 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 B0135 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 B0135 Toyota Code
1. What are the common symptoms of OBDII code B0135 (Short Left Seat Belt Pretensioner Squib Circuit) in a Toyota?
The common symptoms include the airbag warning light illuminated on the dashboard and potential failure of the left seat belt pretensioner.
2. What can cause the OBDII code B0135 to trigger in a Toyota?
The code B0135 is typically triggered by a short circuit in the left seat belt pretensioner squib circuit, which can be caused by wiring issues or a faulty pretensioner.
3. How can I diagnose the OBDII code B0135 in my Toyota?
Diagnosing the code involves using an OBDII scanner to retrieve the specific code, inspecting the wiring and connections related to the left seat belt pretensioner squib, and testing the components for proper functionality.
4. Is it safe to drive my Toyota with the OBDII code B0135 present?
It is not recommended to drive the vehicle with the B0135 code active, as it indicates a potential issue with the left seat belt pretensioner system, which is crucial for occupant safety in the event of a collision.
5. Can I reset the OBDII code B0135 in my Toyota without fixing the underlying issue?
Resetting the code without addressing the root cause will only temporarily turn off the warning light. The code is likely to return until the issue with the left seat belt pretensioner circuit is resolved.
6. How much does it typically cost to repair the OBDII code B0135 in a Toyota?
The cost of repairing the B0135 code can vary depending on the underlying cause, but it may involve replacing damaged wiring, fixing connections, or replacing the left seat belt pretensioner squib, which can range from $100 to $500 or more.
7. Can I repair the OBDII code B0135 in my Toyota by myself?
Repairing the B0135 code may require some technical knowledge and experience working with automotive electrical systems. If you are comfortable with such repairs, you can attempt to fix the issue yourself following a repair manual or online guides.
8. Are there any safety precautions I should take when working on the left seat belt pretensioner circuit to fix the OBDII code B0135?
When working on the seat belt pretensioner system, it is crucial to disconnect the vehicle's battery and wait for a few minutes to discharge any stored energy to prevent accidental deployment of the airbag system.
9. Will fixing the OBDII code B0135 affect the overall functionality of the airbag system in my Toyota?
Fixing the B0135 code will ensure that the left seat belt pretensioner system functions properly, which is an essential component of the overall airbag system's safety mechanism.
10. How long does it typically take to repair the OBDII code B0135 in a Toyota?
The repair time for the B0135 code can vary depending on the extent of the issue and the availability of replacement parts. In general, it may take a few hours to a full day to diagnose and repair the problem.
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