Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Code 94 - Brake Switch Circuit Always Closed: Notes
When wheel speed sensors indicate to ABS module that vehicle is braking, ABS control module should receive signal from brake switch. If signal is present at vehicle start, and vehicle speed exceeds 25 MPH (40 km/h), ABS module flashes ANTI-LOCK warning light. ABS or normal braking will not be affected.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.