B1181 on 2005-2015 Toyota Tacoma — Driver Airbag (2nd Stage) Squib Circuit Open
1 vehicles · 1 makes · $250-$700 repair
Most Reported On
B1181 is an OBD-II diagnostic trouble code meaning “Driver Airbag (2nd Stage) Squib Circuit Open.” B1181 is a manufacturer-specific body/restraint code that, on many Toyota/Lexus and other Asian-make vehicles, indicates an open circuit in the driver airbag module's squib (often the second-stage inflator firing loop); on some GM applications it instead refers to an audio output circuit. In the SRS context, the airbag control module detected a break in the deployment circuit, which could prevent the airbag from firing in a crash, so the airbag light is on. Because meaning varies by maker, confirm with vehicle-specific data. This code is most commonly reported on 2005-2015 Toyota Tacoma, with repair costs ranging from $250 to $700.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose B1181, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does B1181 mean?
B1181 stands for "Driver Airbag (2nd Stage) Squib Circuit Open." B1181 is a manufacturer-specific body/restraint code that, on many Toyota/Lexus and other Asian-make vehicles, indicates an open circuit in the driver airbag module's squib (often the second-stage inflator firing loop); on some GM applications it instead refers to an audio output circuit. In the SRS context, the airbag control module detected a break in the deployment circuit, which could prevent the airbag from firing in a crash, so the airbag light is on. Because meaning varies by maker, confirm with vehicle-specific data.
What are the most common causes of B1181?
The most common causes of B1181 are: Faulty driver airbag inflator/squib, Damaged or worn clockspring (spiral cable) in the steering column, Open or high-resistance wiring in the squib circuit, Corroded or disconnected airbag connector, Faulty airbag (SRS) control module, Improper airbag/connector reassembly after service. The specific cause varies by vehicle.
How much does it cost to fix B1181?
Repair costs for B1181 range from $250 to $700, depending on the vehicle and root cause.
Which vehicles are affected by B1181?
Au7o has documented B1181 across 1 vehicle models from 1 manufacturers: Toyota.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.