B0137 Lexus Code - Short To Ground Left Seat Belt Pretensioner Squib Circuit
Quick Answer
The B0137 code for Lexus vehicles indicates a "Short To Ground Left Seat Belt Pretensioner Squib Circuit" issue. Common causes include Damaged wiring or connectors in the left seat belt pretensioner squib circuit, Corrosion or moisture intrusion in the circuit components, Faulty seat belt pretensioner squib. 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
- B0137 Lexus indicates Short To Ground Left Seat Belt Pretensioner Squib Circuit.
- Common causes
- Common causes include Damaged wiring or connectors in the left seat belt pretensioner squib circuit, Corrosion or moisture intrusion in the circuit components, Faulty seat belt pretensioner squib.
- 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.
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Code B0137 Lexus Description
The B0137 code for Lexus vehicles indicates a "Short To Ground Left Seat Belt Pretensioner Squib Circuit" issue. In simpler terms, this means that there is a problem with the circuit that controls the left seat belt pretensioner in the vehicle. The seat belt pretensioner is a safety feature that tightens the seat belt in the event of a collision, helping to secure the occupant in place and reduce the risk of injury.
Common Causes of B0137 Lexus
- Damaged wiring or connectors in the left seat belt pretensioner squib circuit.
- Corrosion or moisture intrusion in the circuit components.
- Faulty seat belt pretensioner squib.
- Impact or collision that damages the seat belt pretensioner system.
- Poor electrical connections or grounding issues in the circuit.
Symptoms of B0137 Lexus
- Illumination of the airbag warning light on the dashboard.
- Inability of the left seat belt pretensioner to deploy during a collision.
- Diagnostic trouble code (DTC) B0137 stored in the vehicle's computer system.
- Intermittent or erratic behavior of the seat belt pretensioner system.
- Increased risk of injury to occupants in the event of a collision.
How to Fix B0137 Lexus
- Begin by diagnosing the specific cause of the short to ground in the left seat belt pretensioner squib circuit using a diagnostic scanner.
- Inspect the wiring and connectors associated with the circuit for any signs of damage, corrosion, or loose connections.
- Test the seat belt pretensioner squib itself to determine if it is functioning properly or needs replacement.
- Repair or replace any damaged wiring, connectors, or components in the circuit as needed.
- Clear the diagnostic trouble code (DTC) from the vehicle's computer system and test the seat belt pretensioner system to ensure proper functionality.
Cost to Fix B0137 Lexus
The cost of repairing a B0137 code for a Lexus vehicle can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. In general, the parts needed for this repair, such as wiring, connectors, or a new seat belt pretensioner squib, can range from $100 to $300 or more. Additionally, the labor costs for diagnosing and repairing the issue can add another $150 to $300 or more to the total cost.
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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 B0137 Lexus Code
1. What are common symptoms of OBDII code B0137 in a Lexus related to the left seat belt pretensioner squib circuit?
The common symptoms include the airbag warning light being illuminated on the dashboard and potential failure of the seat belt pretensioner system.
2. What causes the OBDII code B0137 "Short To Ground Left Seat Belt Pretensioner Squib Circuit" in a Lexus?
This code is typically triggered by a short to ground in the wiring or connector of the left seat belt pretensioner squib circuit.
3. How can I diagnose the OBDII code B0137 in my Lexus for the left seat belt pretensioner squib circuit?
You can diagnose this code by inspecting the wiring and connectors for any visible damage, performing continuity tests, and using a diagnostic scan tool to retrieve specific fault codes.
4. Can I continue to drive my Lexus with the OBDII code B0137 present?
It is not recommended to drive the vehicle with this code as it indicates a potential issue with the seat belt pretensioner system, which is crucial for occupant safety.
5. What is the typical repair process for fixing the OBDII code B0137 related to the left seat belt pretensioner squib circuit in a Lexus?
The repair process usually involves locating and repairing the short to ground in the wiring or connector, resetting the fault codes, and performing a thorough system test to ensure proper functionality.
6. Are there any safety precautions I should take when working on the left seat belt pretensioner squib circuit in my Lexus?
Yes, it is important to disconnect the vehicle's battery before working on any airbag-related components to avoid accidental deployment and ensure safety.
7. Can I reset the OBDII code B0137 in my Lexus without repairing the underlying issue?
While you can clear the fault code temporarily, it is essential to address the root cause of the problem to prevent the code from reoccurring and ensure the proper operation of the seat belt pretensioner system.
8. How can I prevent the OBDII code B0137 from happening again in my Lexus after repairing it?
Regularly inspecting the wiring and connectors for any signs of damage, ensuring proper installation of components, and following the manufacturer's maintenance recommendations can help prevent this code from reoccurring.
9. Is it possible to repair the OBDII code B0137 related to the left seat belt pretensioner squib circuit in my Lexus without professional help?
While some DIY enthusiasts may attempt this repair, it is recommended to seek professional assistance due to the critical nature of the seat belt pretensioner system and the complexity of the repair process.
10. How much does it typically cost to repair the OBDII code B0137 in a Lexus caused by a short to ground in the left seat belt pretensioner squib circuit?
The cost of repair can vary depending on the extent of the damage and the labor rates in your area, but it is advisable to budget for diagnostic fees, replacement parts, and labor costs when addressing this issue.
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