Symptom-to-Subsystem Mapping
You describe what the car is doing. We map that to the right subsystem first, so the path matches how shops actually narrow a problem.
Tell us about your car, then go by scanner code or by symptoms. GearMedic turns that into a clear, data-driven repair plan so you know what to fix first and what to ask a mechanic.
Already have a scanner code? GearMedic walks you through a precise, code-guided diagnosis. No scanner? Follow the guided symptom path. Your vehicle's behavior still tells the story.
GearMedic combines structured decision-tree logic, statistical fault data, and real-world repair patterns. You get check engine help that narrows causes, not a wall of jargon. The goal is simple: less guesswork, fewer wrong parts, and a clearer idea of how to fix your car.
You describe what the car is doing. We map that to the right subsystem first, so the path matches how shops actually narrow a problem.
When you have OBD-II codes, we combine them with your symptoms to shrink the list of likely causes, with context that feels closer to a bay conversation than a one-line code definition.
You get severity, likely causes, rough cost ranges, and plain-language next steps so you can plan a fix instead of guessing which part to throw at it.
Your year, make, model, engine, and mileage shape the story. That helps surface failure patterns that actually show up on cars like yours.
Editorial guides on fault patterns, repair strategy, and the real mechanical systems behind OBD-II codes.
An OBD-II P-code is a standardized diagnostic trouble code triggered when the vehicle detects a fault. GearMedic translates that code into probable causes, urgency, and a clear repair path.
The light means the computer stored a fault, but the same light can mean dozens of different problems. Enter your code in GearMedic for a vehicle-specific read on likely causes, or use the symptom path if you do not have a scanner yet.
Start with your vehicle profile, then either enter your OBD-II codes or follow the guided symptom questions. GearMedic is built for education and planning: it does not replace a hands-on inspection, but it helps you walk in with better context and smarter questions.
Yes. Leave the code fields blank and follow the guided symptom path. Choose the problem area, vehicle system, and part group, then select what you feel while driving.
GearMedic applies your vehicle profile, fault-code interpretation, and guided symptom analysis so the output is more specific than a generic DTC definition page.
Yes. It helps you understand likely failure points, repair urgency, realistic cost ranges, and the right questions to ask before approving work.