B0137 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 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 Description
What are the Possible Causes of the DTC B0137?
- 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?
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 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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Get the B0137 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B0137 Lexus — Short To Ground Left Seat Belt Pretensioner Squib Circuit
- B0137 Scion — Short To Ground Left Seat Belt Pretensioner Squib Circuit
- B0137 Toyota — Short To Ground Left Seat Belt Pretensioner Squib Circuit
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 Code
1. What does the OBDII code B0137 mean?
B0137 indicates a short to ground issue in the left seat belt pretensioner squib circuit, which is part of the airbag system.
2. What are the common symptoms of code B0137?
Symptoms include the airbag warning light illuminating, potential diagnostic trouble code storage, and possible deactivation of the airbag system.
3. What causes the B0137 code to appear?
Common causes include damaged wiring, corroded connectors, a faulty seat belt pretensioner, or a short to ground in the circuit.
4. Can I still drive with code B0137?
While the vehicle may still operate, the airbag system might not function correctly, which compromises safety in the event of an accident.
5. How do I diagnose the B0137 code?
Start by visually inspecting the pretensioner wiring and connectors for damage, test for continuity in the circuit, and check for a short to ground.
6. How is the B0137 code typically repaired?
Repairs may include replacing damaged wiring, cleaning or replacing corroded connectors, or replacing the faulty seat belt pretensioner.
7. Will clearing the code fix the issue permanently?
No, clearing the code without addressing the root cause will only temporarily turn off the warning light, and the code will likely return.
8. What tools are needed to fix a B0137 code?
You'll need an OBDII scanner, a multimeter for electrical testing, and potentially wiring repair tools or parts for replacement.
9. Is code B0137 covered under warranty?
It depends on your vehicle's warranty coverage; safety-related components like the airbag system may be covered under extended warranties.
10. Should I attempt to repair the B0137 code myself?
If you're experienced with automotive electrical systems, you can attempt the repair, but for safety-critical components like the airbag system, professional service is recommended.
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