B1811 on Toyota: How to Diagnose & Fix
Driver Side Squib 2nd Stage Circuit Short / Fault
1 Toyota model · 1 documented issue · $250-$700 repair
B1811 on Toyota by model: symptoms, diagnosis and fix
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 recalled about 495,000 2005-2009 Tacomas built September 14, 2004 through August 29, 2008 for this condition (NHTSA 12V092000), and the problem is widely documented in owner forums and complaint databases, including on trucks outside the recall.
Common Symptoms
- airbag warning light on
- horn not working
- cruise control inoperative
- steering wheel audio buttons not working
- intermittent electrical functions when turning wheel
How to Fix
First check the VIN for open recall 12V092000 (2005-2009 Tacomas built through August 29, 2008), under which dealers replace the spiral cable free of charge. Scan the SRS system first and confirm continuity loss through the spiral cable before replacing other parts. Replacement of the clock spring assembly is the standard repair; after installation, the steering angle and wheel centering should be verified and SRS codes cleared. Care is required because the driver airbag must be removed safely.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Toyota 84306-04080 genuine spiral cable
replace a continuity-confirmed failed spiral cable on a non-recall or already-remedied exact configuration Fitment/availability: Selected 2010-2015 Tacoma configurations without the convenience/cruise-control sensor branch; the catalog a…
- Toyota 84306-0E010 genuine spiral cable with angle-sensor application
replace the failed option-matched spiral cable after SRS diagnosis and recall screening Fitment/availability: Selected 2010-2015 Tacoma convenience-package, cruise-control and steering-wheel-control branches; replaces 84306-48030 and req…
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Owner tips & cautions
- TipIf the horn, cruise, and airbag light fail together, owners often check the spiral cable before replacing switches or the airbag module.
- TipDisconnect the battery and wait several minutes before removing the airbag module to avoid accidental deployment.
Sources for this issue (3)
B1811 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does B1811 mean on a 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 it is documented across 1 model: Tacoma.
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 on a Toyota?
Published repair estimates on Toyota range from $250 to $700 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.