• 【Vehicle CEL Doctor】The NT301 obd2 scanner enables you to read DTCs, access to e-missions readiness status, turn off CEL(check engine light) or MIL, reset monitor, read live data and retrieve VIN of your vehicle. The fault code will appear again even though you cleared before, if you don't repair the car completely. The fault code only can be cleared by NT301 after car repair finished, as like all the obd2 scanner's working principle.
• 【Read Fault Codes】About the read code funtion needs to be in the ignition on state and if the check engine light is on. If the vehicle is compatible with NT301, please select correct menu & ensure no hardware/wiring issues/obd2 interface damage for accurate results. The correct menu: Select OBDII-> Wait for seconds-> Select Read codes.
• 【Advanced OBDII Modes 】 This car scanner provides enhanced obd2 modes capabilities: O-2 sensors test and EVAP system leak monitor. It allows you to run a leak check on your car’s EVAP system and assess the fuel tank’s condition. The O-2 sensor test helps optimize the air-fuel ratio, boosting fuel economy and cutting em-issions. Saving you money on gas and reducing your vehicle’s environmental footprint.
• 【Live Data Graphing & Accuracy for Most OBD2 Vehicles】View and log live sensor data in graph form—monitor oxygen sensors, fuel trims, coolant temp, RPM, and more. Spot trends and suspicious values in real time. Compatible with most 1996+ gasoline cars, light trucks, and SUVs sold in the U.S., as well as many 2000+ European and Asian models. Also works on 12V diesel vehicles equipped with OBD2. It's a basic code reader and DOESN'T't support to scan ABS, SRS, EPB, A/C systems etc, . It also DOESN'T support ANY special functions like TMS reset/SRS Reset/ABS bleeding/automatic driving/tpms relearn/bluetooth related.
• 【S-mog Check Helper – Know Your Readiness Status at a Glance】With dedicated I/M readiness hotkeys and a simple Red-Yellow-Green LED indicator, you’ll instantly know if your vehicle is ready for em-issions testing. Built-in speaker provides audio response. No guesswork—just confidence before you head to the test center.
• 【OBDII Protocols & Compatibility】 The NT301 supports OBDII protocols like KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. The device is compatible with 1996 US-based, 2000 EU-based and Asian cars, light trucks, SUVs. Kindly check the vehicle compatibility before the purchase since the function comatibility and car compatibility vary from different car models, year and vin.
• 【A Must-Have Tool for Every Home Mechanic】Compact, rugged, and ready to use right out of the box. The 2.8” color screen is easy to read, even in daylight. No charging or setup required—just plug into the 16-pin DLC and start diagnosing. Recommended by professional mechanics on YouTube and trusted by DIYers worldwide.
• 【Lifetime Updates + 1-Year Seller Assurance】Enjoying plug and play and peace of mind with our 1-year seller assurance. No need to update before use. If you receive a damaged, used, or incomplete unit, we’ll replace it or issue a full refund. If you’re not satisfied and choose to return it, please mark it as “unsellable” so it won’t be resold to another customer—we appreciate your honesty.
• 【What It DOES NOT Do – Be Fully Informed Before Purchasing】This is a basic OBD2 code reader, not a professional scan tool. It does NOT support: ABS, SRS, EPB, A/C systems etc, ; Any special resets (TMS reset/SRS Reset/ABS bleeding/automatic driving/tpms relearn/bluetooth related). Please check compatibility before purchasing—functionality varies by year, make, model, and VIN.

Product description Stop Wasting Money on Unnecessary Repairs The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. FOXWELL NT301 OBD2 Scanner Plug & Play DIY Tool Merchant Video

Don’t let a simple check engine light drain your wallet. This OBD2 scanner quickly reveals the cause behind the warning before you rush to a repair shop. With clear diagnostics, you can avoid unnecessary repairs, save hundreds in service fees, and make smarter decisions about your car’s maintenance.

Take Control of Your Car’s Health

1. The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Are you ready for live data? Merchant Video More obvious trends and changes in the data. Live Data for Peace of Mind
   

   The compatibility of transmission temperature and fuel pressure will vary from different car models, please check it before purchase.

   Keep your car’s health in check with the NT301 OBD2 scanner diagnostic tool. It displays real-time data in easy-to-read graphs, helping you track engine RPM, vehicle speed, accelerator position, ignition timing, air flow, coolant temperature, and more. Access correct menu easily: Select OBDII/EOBD → Wait a few seconds → Live Data.

2. Records/playbacks live sensor data. Data Logging
   

   This odb2 scanner nt301 can read freeze frame data which shows engine conditions such as fuel trim, fuel pressure, engine coolant temp, etc. Then records PIDs for later use to help you diagnose intermittent driving performance problems which can not be determined by any other methods.

   The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Are you ready for data logging? Merchant Video
3. Built-in DTC look up library for possible causes. DTC Help
   

   Foxwell NT301 obd scanner diagnostic tool has a built-in DTC look up library, problem repair help for codes detected, verified fixes for common problems. This obd ii scanner can be automatically displayed after reading, press "HELP" button with DTC guide for possible causes if codes show the small "?" icon.

   The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Are you ready for DTC Lookup? Merchant Video
4. One-click hot keys for a smog check. I/M Readiness
   

   This obd scanner diagnostic tool is designed for fast use so you can get the results you want in the shortest time with one-click hot keys for reading/clearing DTCs. To know if you are ready for a smog check, press I/M button(rubber) for 3 seconds. Red-Yellow-Green LEDs and build-in speaker indicate the readiness status for smog check.

   The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Are you ready for smog test? Merchant Video
5. Print diagnostic data reports to analyze. Data Print
   

   This code reader enables you determine the problem yourself, or let you know exactly what needs replacement in case you need. If you are unable to determine the problem, you can print out the diagnostic data and send the data to your mechanic for help.

   The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Are you ready for data print? Merchant Video

Smarter Scans, Clearer Answers

Unlock reliable diagnostics with the code reader for cars and trucks. Unlike basic scanner, NT301 fully supports all 10 OBD2 modes, including live and freeze frame data, em-issions codes, clear/read DTCs, O2 sensor tests, and onboard monitoring. It cannot scan any systems like ABS, EPB, A/C, SRS.

Essential Features. No Costly Extras.

Designed for everyday drivers, it offers practical features like LED indicators, data logging, DTC lookup, VIN retrieval, and data printing. NT301 cannot support any special functions like TMS reset/SRS Reset/ABS bleeding/Automatic Driving/TPMS Relearn/Bluetooth related.

Extra Features about NT301 You should Know Friendly and Standout Design

NT301 shines among competitors due to its integrated body, user-friendly design, compact size, organized keypad, intuitive menu, 2.8" color screen.

I/M Readiness Hotkey

The I/M Readiness is a vital tool to evaluate a vehicle's compliance with state e-missions programs before inspection, with hotkey for swift checks.

Red-Yellow-Green LEDs

To know if you're ready for a smog check, three LEDs tell you the status. Red indicates- Urgent Repair; Yellow - Needs Diagnosis; Green - Good Status

"HELP" Hotkey for DTC Lookup

The obd scanner can be automatically displayed after reading, press "HELP" button with DTC guide for possible causes if codes show the small "?" icon.

Don't Just Take Our Word For It

As Seen On Top Auto Channels, Named Best Display OBD-II Scanner for DIY Use by Car and Driver! Let the FOXWELL NT301 to be your 2025 TOP PICK and experience the performance that passed mighty tests!

• Will this automotive scanner diagnostic tool compatible with my vehicle？

  NT301 car scanner obd2 is compatible with 1996 US-based, 2000 EU-based and Asian cars, light trucks, SUVs. Support OBDII protocols like KWP2000, J1850VPW, ISO9141, J1850 PWM and CAN. Kindly check the vehicle compatibility before the purchase.

• Do I need to update NT301 vehicle diagnostic scanner before use?

  The foxwell nt301 obd2 scanner can plug and play directly. No need update before use.

• Will scanner automotriz scan ABS/ EPB/ Aircondition/ SRS/ Transmission/ TPMS/SAS/Battery system or support battery test?

  Sorry, NT301 obdii scanner cannot scan any non-OBDII systems(ABS/ Transmission/ SRS/ Battery/ TPMS/SAS/EPB/ A/C system,ect.) or battery test. It 's only able to read and clear check engine information which is part of OBDII system.

• Will this scanner for car support to relearn or reset any special functions?

  No, NT301 car scanner cannot support any special functions(like TMS reset/SRS Reset/ABS bleeding/Automatic Driving/TPMS Relearn/Bluetooth related). If you need advanced functions, we recommend Foxwell NT624 Elite/NT716/NT809BT scanner.

• What live data can be read by this check engine light diagnostic tool?

  The compatibility of live data will vary from different car models. There are over 40 graphing live data (Can be download a whole list), to list some: FUELSYS(fuel system status), LOAD_PCT(Calculated load value),ECT(Engine Coolant Temperature), etc.

More Car Scanners Recommended from Foxwell Store Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.3 out of 5 stars 714 4.5 out of 5 stars 2,617 4.6 out of 5 stars 229 4.2 out of 5 stars 3,950 4.5 out of 5 stars 29,719 4.2 out of 5 stars 2,331 4.4 out of 5 stars 239 Price $151.96$151.96 $79.98$79.98 $57.99$57.99 $119.99$119.99 $55.97$55.97 $215.98$215.98 $239.97$239.97 Screen Size 4.3" 2.8" 2.8" 2.8" 2.8" 4.3" 5.5" Full OBD2 Service √ √ × √ √ √ √ Diagnostic System ABS/SRS/Engine/Transmission OBDII, 12V Batttery Tester 12V Batttery Tester OBDII, ABS/SRS System OBDII OBDII, All System OBDII, ABS/SRS/TCM/Engine Data Record, Graph, Playback √ √ × √ √ √ √ Special Reset Function 5 Reset Services × × 4 Reset Services × 8 Reset Services 9 - ABS/SAS/TPS/Oil/EPB/BRT... Bi-directional Control × × × For ABS × × √ Car Battery Test × Health/Cranking/Charging Test Health/Cranking/Charging Test × × × × Software Update WiFi Lifetime Update Lifetime Update via PC Lifetime Update via PC WiFi Update Lifetime Update via PC WiFi Lifetime Update WiFi Lifetime Update Comes with Case? √ × × √ × √ √