Engine-Codes.com
Engine-Codes – Generic – B0135

B0135 Code - Short Left Seat Belt Pretensioner Squib Circuit

Quick Answer

The B0135 code indicates a problem with the short left seat belt pretensioner squib circuit in the vehicle. Common causes include Wiring harness damage or corrosion, Faulty seat belt pretensioner squib, Loose or damaged electrical connections. 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 indicates Short Left Seat Belt Pretensioner Squib Circuit.
Common causes
Common causes include Wiring harness damage or corrosion, Faulty seat belt pretensioner squib, Loose or damaged electrical connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B0135 Description

The B0135 code indicates a problem with the short left seat belt pretensioner squib circuit in the vehicle. The seat belt pretensioner is a safety feature that works in conjunction with the airbag system to tighten the seat belts in the event of a collision, reducing the risk of injury to the occupants. The squib circuit is responsible for initiating this process, and a short circuit in this component can compromise the effectiveness of the seat belt pretensioner system.

OBDII Code B0135 - Short Left Seat Belt Pretensioner Squib Circuit
B0135 Code - Short Left Seat Belt Pretensioner Squib Circuit

Common Causes of B0135

  1. Wiring harness damage or corrosion
  2. Faulty seat belt pretensioner squib
  3. Loose or damaged electrical connections
  4. Faulty seat belt pretensioner control module
  5. Vehicle collision or impact that damaged the seat belt pretensioner system

Symptoms of B0135

  1. Illumination of the airbag warning light on the dashboard
  2. Inoperative or malfunctioning seat belt pretensioner system
  3. Error codes related to the seat belt pretensioner system
  4. Intermittent or erratic behavior of the seat belt pretensioner

How to Fix B0135

  1. Diagnose the issue: Use a scan tool to retrieve the specific trouble code and perform a thorough inspection of the seat belt pretensioner system to identify the exact cause of the problem.
  2. Check wiring harness: Inspect the wiring harness for any signs of damage, wear, or corrosion. Repair or replace any damaged wiring as necessary.
  3. Test seat belt pretensioner squib: Test the left seat belt pretensioner squib to determine if it is functioning properly. Replace the squib if it is found to be faulty.
  4. Check electrical connections: Inspect all electrical connections related to the seat belt pretensioner system, ensuring they are secure and free of corrosion. Repair or replace any damaged connections.
  5. Clear trouble codes: After completing the repairs, clear the trouble codes from the vehicle's computer system and test the seat belt pretensioner system to ensure proper operation.

Cost to Fix B0135

The cost of repairing a short left seat belt pretensioner squib circuit can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, you can expect to pay anywhere from $150 to $500 for parts and labor for this repair. Keep in mind that labor rates at auto repair shops can vary widely, so it's best to check with local providers for a more accurate estimate. Additionally, the cost may be higher if specialized parts or components are required for the repair.

Need more information about the B0135 code?

Need more information on how to fix the B0135 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0135 code diagnosed by a professional: Find a repair shop in your area

Code B0135 Information for Specific Makes

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.

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B0135 Code

1. What are the common symptoms of OBDII code B0135?

- Common symptoms include the airbag warning light illuminating on the dashboard and potential non-deployment of the seat belt pretensioner in the event of a collision.

2. What does the OBDII code B0135 indicate?

- This code specifically refers to a fault in the short left seat belt pretensioner squib circuit, signaling an issue with the seat belt's safety mechanism.

3. What are possible causes of OBDII code B0135?

- Causes may include a faulty seat belt pretensioner, damaged wiring or connectors in the circuit, or issues with the airbag control module.

4. How can I diagnose the source of OBDII code B0135?

- Diagnosing the issue typically involves using a scan tool to retrieve the code, inspecting the wiring and connectors related to the left seat belt pretensioner, and testing the components for proper functionality.

5. Can driving with OBDII code B0135 pose any risks?

- Continuing to drive with this code may compromise the effectiveness of the seat belt pretensioner in the event of a collision, potentially putting the driver and passengers at greater risk of injury.

6. Is it safe to reset the OBDII code B0135 without addressing the underlying issue?

- It is not recommended to simply reset the code without addressing the root cause, as the safety system affected by this code plays a crucial role in protecting occupants during a crash.

7. What repair tips can help resolve OBDII code B0135?

- Repair tips may include checking and repairing any damaged wiring or connectors, replacing the faulty seat belt pretensioner, and ensuring proper connections to the airbag control module.

8. Can OBDII code B0135 be fixed without professional help?

- While some basic troubleshooting steps can be taken, resolving this code may require specialized knowledge and tools, making professional assistance advisable for proper diagnosis and repair.

9. How much does it typically cost to repair OBDII code B0135?

- The cost of repairs can vary depending on the specific cause of the issue, but it may involve expenses for replacement parts, labor, and diagnostic services from a qualified mechanic or dealership.

10. Is it possible for OBDII code B0135 to reoccur after being fixed?

- If the underlying cause of the code is not fully addressed during the repair process, there is a possibility that OBDII code B0135 may reoccur, highlighting the importance of thorough troubleshooting and repair.

Discuss the causes and fixes for B0135 OBDII Code

Submit a New Comment

Code B0135 comments

No comments found for this page.