B1811 on 2005-2015 Toyota Tacoma — Driver Side Squib 2nd Stage Circuit Short / Fault
1 vehicles · 1 makes · $250-$700 repair
Most Reported On
B1811 is an OBD-II diagnostic trouble code meaning “Driver Side Squib 2nd Stage Circuit Short / Fault.” This is a manufacturer-specific body code (seen on Toyota and Ford-family vehicles) for the driver-side airbag second-stage squib circuit. The squib is the igniter that fires the airbag; the restraints module detected a short or fault in the second-stage (dual-stage) deployment circuit for the driver airbag. With this code the airbag warning light is typically on and that airbag may not deploy correctly in a crash, so it is a safety-critical fault. Exact wording can vary by manufacturer. 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 B1811, 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
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
FAQ
What does B1811 mean?
B1811 stands for "Driver Side Squib 2nd Stage Circuit Short / Fault." This is a manufacturer-specific body code (seen on Toyota and Ford-family vehicles) for the driver-side airbag second-stage squib circuit. The squib is the igniter that fires the airbag; the restraints module detected a short or fault in the second-stage (dual-stage) deployment circuit for the driver airbag. With this code the airbag warning light is typically on and that airbag may not deploy correctly in a crash, so it is a safety-critical fault. Exact wording can vary by manufacturer.
What are the most common causes of B1811?
The most common causes of B1811 are: Faulty driver airbag inflator/squib or clockspring (spiral cable), Open, shorted, or chafed wiring in the airbag circuit, Corroded or loose airbag connector under the steering column, Damaged clockspring after steering work, Faulty restraints (SRS) control module, Recent collision or airbag deployment history. The specific cause varies by vehicle.
How much does it cost to fix B1811?
Repair costs for B1811 range from $250 to $700, depending on the vehicle and root cause.
Which vehicles are affected by B1811?
Au7o has documented B1811 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.