B0137 Lexus Code - Short To Ground 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
- B0137 Lexus indicates Short To Ground 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 B0137 Lexus Description
What are the Possible Causes of the DTC B0137 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 B0137 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 B0137 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 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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