AI Diagnostics — OBD-II + CAN Bus
That check engine light means something specific. HALO scans your OBD-II trouble codes, feeds them to an AI trained on millions of repair cases, and gives you a plain-language diagnosis — root cause, fix options, parts needed, and what it should cost. No mechanic visit just to find out what's wrong.
A $20 OBD-II scanner tells you "P0300 — Random/Multiple Cylinder Misfire Detected." That's a code, not a diagnosis. You still don't know if it's a bad spark plug, a failing coil pack, a vacuum leak, or a fuel injector issue. You end up Googling the code and reading forum posts from 2014.
HALO reads the same code but cross-references it with your specific vehicle make, model, year, and mileage. The AI considers related codes, freeze frame data, and known failure patterns for your engine. Instead of a cryptic alphanumeric string, you get: "Most likely cause: ignition coil failure on cylinder 3. Replacement part: ~$45. Labor estimate: $80–$120. Difficulty: moderate DIY."
Basic Code Reader
P0300
Random/Multiple Cylinder Misfire Detected
Now what?
HALO AI Analysis
P0300 + P0303
Cylinder 3 misfire — likely ignition coil failure. Common on your engine above 80k miles.
Part: $45 · Labor: $80–$120 · DIY: Moderate
Read and clear diagnostic trouble codes from your vehicle's ECU. HALO supports all standard OBD-II protocols — ISO 9141, KWP2000, CAN 11-bit, CAN 29-bit, and J1850. Pending codes, confirmed codes, and freeze frame data are all captured for a complete diagnostic picture.
Every trouble code is sent to an AI diagnostic engine that considers your vehicle profile, mileage, related codes, and known failure patterns. The result is a ranked list of probable causes — not just "could be X or Y" but "most likely X (85% of cases), less likely Y (12%), rarely Z." Context your mechanic would charge an hour of labor to determine.
For each probable cause, HALO provides specific fix instructions — what to replace, what to inspect, and whether it's a reasonable DIY job or requires a lift. Parts are identified by name and typical price range. No more walking into AutoZone and hoping the counter person interprets your code correctly.
Know what a repair should cost before you call a shop. HALO provides estimated ranges for both parts and labor based on your vehicle and region. Walk into a repair appointment informed — or decide to do it yourself with the step-by-step guidance provided.
Beyond trouble codes, HALO streams live OBD-II PIDs — engine RPM, coolant temperature, intake air temperature, fuel trim, oxygen sensor voltage, and more. Watch values in real time on your dashboard or head unit. Spot a sensor drifting out of range before it triggers a code.
Standard OBD-II gives you generic engine data. HALO goes deeper by decoding your vehicle's native CAN bus — the internal network that carries door states, window positions, steering angle, brake pressure, and hundreds of other signals the OBD-II port never exposes. Vehicle-specific decode profiles are built and expanded continuously.
Get professional-grade diagnosis without professional-grade bills. Know exactly what part to order and how to install it before you open the hood.
Monitor live engine parameters, log data across pulls, and catch issues early. Raw PID data and CAN bus signals available for those who want the numbers.
Scan a vehicle before you buy it. See pending codes the seller cleared yesterday, check long-term fuel trims for hidden problems, and get an AI assessment of the engine's health.
Stop guessing and stop paying $100 for a diagnostic fee. Scan the code, read the AI analysis, and decide your next step — in your driveway, in 30 seconds.
For DTC scanning and live PID data, yes — HALO pairs with a standard Bluetooth ELM327 OBD-II adapter (widely available for $15–$25). For CAN bus telemetry decoded through the head unit's built-in MCU, no adapter is needed.
The AI ranks probable causes based on your specific vehicle, mileage, and code combination. It is not a replacement for a certified mechanic on complex issues, but for common DTCs it identifies the correct root cause in the majority of cases — and always provides the reasoning so you can evaluate it yourself.
Yes. HALO can clear DTCs through the OBD-II adapter. However, if the underlying issue is not resolved, the code will return. The AI analysis helps you fix the cause, not just silence the symptom.
All five standard OBD-II protocols: ISO 9141-2, ISO 14230-4 (KWP2000), SAE J1850 PWM, SAE J1850 VPW, and ISO 15765-4 (CAN). If your car was built after 1996 (US) or 2001 (EU), it has an OBD-II port and HALO can read it.
Yes. OBD-II diagnostics read standardized engine data through the diagnostic port. CAN bus decode reads the vehicle's internal network for manufacturer-specific signals (door states, steering angle, etc.). HALO does both — OBD-II via Bluetooth adapter, CAN bus via the head unit's built-in MCU.
Get AI-powered diagnostics built into your dash. Find a compatible head unit and start understanding what your car is telling you.
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