B1811 on Toyota
Driver Side Squib 2nd Stage Circuit Short / Fault
B1811 on Toyota vehicles indicates driver side squib 2nd stage circuit short / fault. Au7o has documented this code across 1 Toyota model — most commonly on Tacoma. 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. Typical repair costs on Toyota range from $250 to $700, depending on the specific model and root cause.
Common Causes of B1811
- •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
B1811 on Toyota by Model
Toyota Tacoma(1 issue)
- Spiral Cable / Clock Spring Failure Triggering Airbag Light and Inoperative Steering Wheel Controls2005-2015
Second-generation Tacomas commonly develop failure of the steering wheel spiral cable, also called the clock spring. Owners report the airbag warning light turning on along with loss of horn, cruise control, or steering wheel audio controls because the ribbon cable inside the assembly breaks with repeated wheel rotation. Toyota issued service information and the problem is widely documented in owner forums and complaint databases.
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View B1811 across all makes →Frequently Asked Questions
What does B1811 mean on Toyota?▼
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. On Toyota specifically, this code is documented across 1 model.
What causes B1811 on Toyota vehicles?▼
Common causes on Toyota: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix B1811 on a Toyota?▼
Repair costs on Toyota range from $250 to $700, depending on the specific model and root cause.
Which Toyota models have B1811 documented?▼
Au7o has documented B1811 on 1 Toyota model: Tacoma.