Foxwell NT-301 Code Reader Check Engine Fault OBD2 Scanner Car Diagnostic Tool

OBDII Check Engine Light Car Diagnostic Tool OBD2 Erase Read Code Reader ScannerFOXWELL NT-301-USOverview
FOXWELL NT-301-US -US is a full-function OBDII/EOBD universal car scanner, designed for DIY car owners and entry-level repair technicians. It supports ✅10 OBD2 diagnostic modes, featuring ✅fault code reading & erasing, ✅live data stream, ✅freeze frame and ✅emi-ssion readiness test ，✅DTC Lookup. ✅Plug and play, ✅no battery required, ✅lifetime free update. Cost-effective tool to troubleshoot engine issues and pass vehicle emission inspection.Full OBD2 10 Complete Diagnostic Services

• Read Fault Codes: Accurately read DTC trouble codes with built-in code definition library, clearly explain fault causes.
• Clear Fault Codes: One-click erase error codes and turn off engine malfunction indicator light, reset vehicle monitoring system.
• Freeze Frame Data: Capture real-time vehicle parameters when faults occur, quickly find intermittent failures.
• Live Data Stream: Visual display of sensor data including oxygen sensor, throttle position, vehicle speed and engine RPM, support data record and playback.
• I/M Readiness Test: One-key quick check emission readiness status, perfect for annual vehicle inspection.
• Oxy-gen Sensor Test: Detect oxygen sensor working condition effectively, reduce fuel consumption and improve engine power.
• On-Board Monitor Test: Complete vehicle monitor status test to confirm repair results.
• Component Active Test: Test vehicle actuators to judge spare parts working status.
• Vehicle Info Retrieval: Fast read VIN code, ECU information and vehicle module data.
• Data Print Support: Export and print diagnostic reports for maintenance records.

FOXWELL NT-301-US Advatage Features

Full OBD2 Functions : Read codes , erase codes , turn off engine warning light , reset engine light ,read vehicle information etc

DTC Lookup : Read all OBD2 egine fault codes.Turn this OBD2 scanner, into an electronic dictionary of DTCs. Get DTCs' explanation in 2 seconds.

Lifetime Free Update : no need to install drivers can be updated via USB, so you always have the latest car model data.

Diagnostic Report Sharing via Printing : Data Printing ‒ Print the records saved in reading codes or data stream and share your diagnostic data with others for further analysis.

LED Notifications: Red-Yellow-Green LEDs and build-in speaker indicate the readiness status for smog check.

Data Stream: Supports direct viewing and playback of the diagnosis process and storage of diagnosis records, avoiding re-diagnosis and saving more time

I/M readiness for S-mog Tests : Through the I/M Readiness function of this OBD2 scanner, you can check if the various emission-related parts or systems on the vehicle are operating properly and make sure the monitors are ready for a smog test. If not, fix it before the smog test to pass the test successfully and avoid fines.

Retrieve Vehicle Information : This OBD2 code reader can easily get access to the car's ECU and retrieve its information, including VIN (Vehicle Identification Number), CID (Calibration Identification), and CVN (Calibration verification number) for accurate diagnoses. No need to look around for the VIN.

Multi-Languages : English, French, Russian, German, Italian, Spanish, Portuguese .....

Enjoy Quick Emis-sion Test : The oxygen sensor monitor allows the PCM to verify that the O2 sensors are properly calibrated and functioning without noticeable deterioration under normal engine operating conditions. ediag ya-101 obd2 scanner helps you get fully prepared for passing the smog check.

Enhanced OBDII-EVAP System test (MODE 8) :EVAP System test (Component Test) lets you initate a leak test for the vehicle’s EVAP system.After fixed a problem with the fuel system,you can verify your fix right away, without waiting a few days( or longer) for your car to run it automatically

Enhanced OBDII- On-Board Monitor Test MODE6 :Mode 06 keeps watch on how all of the sensors and other emission control components are functioning. it can reveal the inner workings of the OBD II system, and can tell you when a code is going to set even before it sets the code and turns on the Check Engine light.

Misfire Cylinder Test: Helps to clear the fault code of one abnormal cylinder .Helps to the PCM read the CKPS information and detect which cylinder has issue.

User-friendly Design ： Hand-held size, clearly arranged K-ey pad, menu-driven navigation, hotk-eys and 2.8'' color screen together make the engine tool extremely easy to use.

Plug & Play :NO NEED BATTERY. plug into the OBD II port on your car and turn ignition on then read the car's vehicle information with the reader.

What Engine data can be Read by NT-301-US ?

The Foxwell NT-301-US obd2 code scanner can read and erase codes which can also retrieve a wealth of information from the Engine Control Unit (ECU). The ECU is what triggers the Check Engine Light when there is a problem with your car. Parts might cause your check engine light on include:

FUELSYS(fuel system status),
LOAD_PCT(Calculated load value),
ECT(Engine Coolant Temperature),
SHRTFT(Short term fuel trim-bank),
LONGFT(Long term fuel trim-bank),
Engine RPM,
VSS(Vehicle Speed Sensor),
SPARKADV(Ignition timing advance for cylinder 1),
IAT(Intake air temperature),
MAF(Mass Air Flow),
TP(Absolute Throttle Position),
EQ_RATB1S1(Equivalence Ratio Bank 1, Sensor1),
O2B1S1(Oxygen sensor output voltage),
EVAP_PCT(Commanded Evaporative Purge), etc.

Accurately read error codes for most 12V diesels & gas vehicles of Worldwide ,such as the SUVs, light trucks with standard Obd2. Graphing live vehicle sensors data allows you to focus on any suspicious data and trend.

User-Friendly Design & Practical Features

• 2.8-inch high-definition TFT color screen, clear display even under strong sunlight
• Multi-language menu support for global users
• Independent shortcut hotkeys for one-click access core functions, easy operation for beginners
• Plug and play design, powered directly by car 16PIN OBD port, no extra battery needed
• Shockproof and anti-slip durable body, comfortable for long time holding
• Lifetime free official firmware update, continuously compatible with new car models, no annual subscription fee

NT-301-US Suppport Car list:

1. America Car List: from 1996 years to now
Fit for Chrysler ,Fit for Ford ,Fit for GM ,Fit for Jeep

2. Europe Car List: from 2002 years to now
Fit for Alfa Romeo ,Fit for SAAB ,Fit for Acura ,Fit for Opel, Fit for Audi ,Fit for Seat ,Fit for Peugeot ,
Fit for Bentley ,Fit for Skoda ,Fit for Daewoo, Fit for Benz ,Fit for Daihatsu ,Fit for Land Rover
Fit for BMW ,Fit for Vauxhall ,Fit for Citroen, Fit for Volvo ,Fit for Fiat ,Fit for VW ,Fit for Ford ,Fit for Jaguar

3. Asia Car List: (include Australia): from 2003 years to now
Fit for KIA ,Fit for Isuzu ,Fit for Honda ,Fit for Mitsubishi, Fit for Hyundai ,Fit for Dacia ,Fit for Lexus ,Fit for Mazda
Fit for Nissan ,Fit for Subaru ,Fit for Suzuki, Fit for Toyota

4. Chinese Car List : from 2008 years to now
Fit for BYD, Fit for Chery, Fit for Geely, Fit for Great Wall, Fit for Karry

✔Specifications:

- Brand: FOXWELL
- Model: NT-301-US
- Fitment: for all OBDII compliant cars
- Color: black + orange
- Display: 2.8" TFT color screen
- OSD Language: English, Spanish, French, German, Polish, Portuguese, Hungarian, Dutch, Italy and Swedish
- Power: 8-18 Volts powered by vehicle battery
- Working Temperature: 0° to 60°
- Storage Temperature: -20° to 70°
- Product Dimension: 14.5 * 9.4 * 3.2cm / 5.7 * 3.7 * 1.3in
- Package Size: 26 * 18 * 5cm / 10 * 7 * 2in
- Package Weight: 490g / 17oz

✔How to update NT-301-US obd2 diagnostic code reader?(Not Necessary before utilization.)

1. Visit FOXWELL website foxwelltech.com and then visit the Product page of NT-301-US ，select the Download tab to download the update application NTWonder.

2. Enable NTWonder and connect NT-301-US to computer with USB cable in the package.

3. Click "Update online" or "Update offline" to start downloading and installing the latest version to your tool.

Can only be updated onWindowssystem.No need for registration!

4. An Update Finished Message displays when the update is completed.

Why Choose FOXWELL NT-301-US ?

1. Professional full functions with affordable cost, cost-effective entry-level diagnostic tool
2. Zero learning difficulty for new users, high efficiency for professional repairmen
3. Save expensive garage maintenance fees, finish basic vehicle diagnosis by yourself
4. Permanent free update ensures long-term use and strong compatibility
5. Compact portable size, suitable for home use, road emergency and auto repair shop

Package List

1 × FOXWELL NT-301-US Main Unit

1 × USB Cable

1 × User Manual

FOXWELL NT-301-US -US FAQGeneral QuestionsQ1: What vehicles does the FOXWELL NT-301-US -US support?A: The NT-301-US -US works with all 1996 and newer OBDII/EOBD compliant vehicles (12V gasoline & light-duty diesel). This includes US, European, and Asian cars, SUVs, and MPVs. It supports all standard OBD2 protocols (CAN, KWP2000, ISO9141, J1850).Q2: Does it work for BMW, Mercedes, VW, Toyota, and Honda?A: Yes. It fully supports all mainstream brand vehicles after 1996 for global markets, including European, American, and Asian models.Q3: Is this scanner for engine systems only?A: Yes. NT-301-US -US is a full OBD2 engine diagnostic tool. It reads/clears engine-related fault codes (P-codes), monitors emission systems, and checks real-time engine data. It does NOT support ABS, SRS, transmission, or other special system diagnostics.Function & Feature QuestionsQ4: Can it clear the check engine light (CEL)?A: Absolutely. After repairing the vehicle fault, you can directly clear the trouble codes and turn off the check engine light with one click.Q5: Does it support real-time live data and waveform?A: Yes. It displays real-time parameters such as engine RPM, coolant temperature, fuel trim, throttle position, and oxygen sensor voltage, with visual waveform display to help locate intermittent faults like rough idle and weak acceleration.Q6: What is I/M Readiness function for?A: The I/M Readiness test is designed for annual emission inspection. It quickly checks whether all vehicle emission monitoring systems work normally, helping you avoid inspection failure and rework.Q7: Can it read vehicle VIN information?A: Yes. It supports one-click reading of vehicle VIN, ECU version, and factory information, which is very suitable for used car condition inspection.Q8: Does it support O2 sensor and on-board monitor tests?A: Yes. It can test oxygen sensor working status and verify the operating conditions of catalytic converters, EGR systems, and evaporation systems to solve problems such as excessive fuel consumption and emission overload.Usage & Operation QuestionsQ9: Does it need batteries or charging?A: No batteries or charging required. The scanner is powered directly by the vehicle’s OBD2 port (8-18V), plug and play, no power failure during use.Q10: Is it difficult to use for beginners?A: Very user-friendly. Equipped with dedicated shortcut keys (I/M, Read Code, Erase Code) and a 2.8-inch TFT color screen. The operation is intuitive, and novice users can master it in minutes without professional knowledge.Q11: Why does the scanner fail to connect to the vehicle?A: 1. Confirm your vehicle is a 1996+ OBD2 compliant model; 2. Check if the OBD2 socket is loose or faulty; 3. Turn on the vehicle ignition switch; 4. Restart the device and reconnect.Upgrade & After-sales QuestionsQ12: Does it require paid firmware updates?A: Lifetime free firmware updates. You can connect to a computer via the USB cable to update the latest firmware to adapt to new vehicle models.Q13: Does it support data recording and playback?A: Yes. It supports data logging and playback functions, which is convenient for users to record driving data and analyze hidden vehicle faults.Q14: What is included in the package?A: 1* NT-301-US -US Main Unit, 1* 16Pin OBD2 Diagnostic Cable, 1* USB Upgrade Cable, 1* User Manual, 1* Protective Carry Case.Q15: Is there any warranty support?A: We provide professional after-sales support and technical guidance. If you have any product usage or technical problems, you can contact customer service at any time.PaymentShipping & Returns & RefundsTerms of salesAbout usContact usPaymentWe only accept official payment methods. Please complete payment promptly. Unpaid orders will be canceled automatically to restock inventory. All refunds will be processed via the original payment method.

Shipping & Returns & RefundsOrders will be shipped within 1–3 business days after payment is confirmed. Tracking information will be uploaded timely. Shipping service is fully trackable. We will assist buyers with claims for lost, damaged or delayed parcels. Item condition and quantity are confirmed correct upon buyer’s signature receipt.1) We offer a 30-60 day return window per Money Back Guarantee policy. 2) Seller’s fault : full refund with seller covering all shipping fees. 3) Returned items must be in original condition, complete with original packaging and accessories, unused and resellable. Otherwise, refund may be declined.4) Refund will be issued within 3 business days after we receive and inspect your return. Terms of sales

All transactions are subject to the latest official policies. Disputes are preferred to be resolved via friendly negotiation, and both parties agree to ’s final judgment.

About us

ANCEL was founded in 2013, born from a simple yet steadfast idea:
to enable every car owner, automotive enthusiast, and professional mechanic to quickly and accurately understand their vehicle’s condition, without being held back by complex automotive diagnostic technology.

We believe that automotive diagnostics shouldn’t be limited to professional repair shops.
Starting with our first OBD2 scan tool, we have evolved into a full-range brand, with products spanning automotive diagnostics, battery testing, heavy-duty truck scanners, motorcycle fault code readers, and comprehensive vehicle maintenance solutions.

Everything we build stems from real-world repair scenarios. Every software update, hardware upgrade and user interface tweak is designed to cut down guesswork and give drivers full visibility into their vehicle’s health. For years, we’ve served automotive communities across North America with consistent, precise diagnostic equipment that balances powerful professional functionality with simple, easy-to-navigate operation.At ANCEL, our promise is simple: take the stress out of car troubleshooting, so you can hit the road with total confidence.Contact us

Our customer-oriented service strives for positive responses with all 5 star selling ratings.

Please feel free to contact us via message once you have any question before you giving us negative response or open case.

We will reply in 24 business hours.

Business time: GMT8 (9:00-18:00) from Monday to Friday.

On Oct 26, 2026 at 02:34:42 PDT, seller added the following information: