1. Ifihan
The FOXWELL NT201 is an On-Board Diagnostics II (OBDII) and European On-Board Diagnostics (EOBD) scanner designed to diagnose engine-related issues in vehicles. This device allows users to read and clear diagnostic trouble codes (DTCs), view live data streams, perform I/M readiness tests, and more. This manual provides detailed instructions for the proper use and maintenance of your NT201 scanner and its accompanying portable carrying case.
2. Alaye Aabo
Always observe safety precautions when working on a vehicle. Improper use of diagnostic tools can lead to personal injury or damage to the vehicle. Please read and follow these guidelines:
- Rii daju pe ọkọ ayọkẹlẹ ti duro lori ipele ipele kan pẹlu idaduro idaduro duro.
- Wọ aabo oju ti o yẹ.
- Keep clothing, hair, hands, tools, and test equipment away from moving engine parts.
- Operate the vehicle in a well-ventilated area to prevent carbon monoxide poisoning.
- Maṣe sopọ tabi ge asopọ ohun elo idanwo nigba ti ina ba wa ni titan tabi ẹrọ n ṣiṣẹ.
- Keep the scanner dry and clean. Avoid exposure to extreme temperatures.
3. Package Awọn akoonu
Daju pe gbogbo awọn nkan wa ninu apo rẹ:
- FOXWELL NT201 OBD2 Scanner Unit
- Integrated OBDII Cable
- Apo Gbigbe To ṣee gbe
- Afowoyi Olumulo (iwe-ipamọ yii)
4. Ọja Ipariview
The NT201 scanner features a clear display and intuitive button layout for easy navigation and operation.

Nọmba 4.1: Iwaju view of the FOXWELL NT201 OBD2 Scanner. This image displays the scanner's screen, which shows 'I/M Readiness' status indicators, and the control buttons including ESC, UP, DOWN, and ENTER, along with the I/M readiness hotkey.
4.1. Device Ìfilélẹ
- Ifihan LCD: Shows test results, menu options, and operational information.
- Bọtini ESC: Exits current screen or returns to the previous menu.
- Awọn bọtini oke/isalẹ: Navigates through menu options or data.
- Tẹ Bọtini: Jẹrisi yiyan tabi tẹ akojọ aṣayan kan sii.
- I/M Readiness Hotkey: Provides quick access to the I/M Readiness status.
- OBDII Connector: Connects the scanner to the vehicle's Data Link Connector (DLC).
5. Eto
To begin using your NT201 scanner, follow these steps:
- Wa asopọ asopọ asopọ data pin 16 (DLC) ti ọkọ ayọkẹlẹ naa. Eyi maa n wa labẹ dasibodu ni ẹgbẹ awakọ naa.
- Tan ina ọkọ si ipo 'ON' (ẹnjini kuro).
- Plug the NT201's OBDII connector into the vehicle's DLC. The scanner will power on automatically.
- The scanner will perform a system check and display the main menu.
6. Awọn ilana Iṣiṣẹ
6.1. Read and Clear Fault Codes
This function allows you to retrieve Diagnostic Trouble Codes (DTCs) from the vehicle's engine control unit (ECU) and clear them after repairs.

Nọmba 6.1: The FOXWELL NT201 scanner in use, displaying the diagnostic menu with 'Read Codes' highlighted. A vehicle dashboard is visible in the background, showing the check engine light illuminated.
- From the main menu, use the Soke/isalẹ buttons to select "Diagnostic Menu" and press WOLE.
- Yan "Ka Awọn Koodu" lati view current, pending, and permanent DTCs. The scanner will display the codes and their definitions.
- After addressing the underlying issue, select "Erase Codes" from the Diagnostic Menu and press WOLE. Confirm the action when prompted. This will turn off the Malfunction Indicator Lamp (MIL) or 'Check Engine Light'.
6.2. Ṣíṣàn Dátà Láàyò
View real-time operational parameters of the vehicle's engine, such as engine RPM, vehicle speed, coolant temperature, and more.

Nọmba 6.2: The FOXWELL NT201 scanner displaying a live data stream. The screen shows various parameters like Engine RPM and Vehicle Speed Sensor data, presented both numerically and graphically, with a car interior visible in the background.
- From the Diagnostic Menu, select "Live Data" and press WOLE.
- O le view data in text format or graphical format. Use the Soke/isalẹ buttons to scroll through parameters.
- Tẹ WOLE to select a parameter for detailed viewing or graphing.
6.3. One-Key I/M Readiness Test
Quickly check the vehicle's emission readiness status to determine if it's ready for an emissions test.

Nọmba 6.3: The FOXWELL NT201 scanner with its 'I/M' hotkey prominently displayed and highlighted, indicating its function for a quick smog check. An exhaust pipe is visible in the background, suggesting emissions testing.
- With the scanner connected and powered on, press the dedicated I/M hotkey.
- The scanner will display the status of various emission-related monitors (e.g., MIL, MIS, FUE, CCM, CAT, O2S, EGR).
- Green indicates the monitor has completed its test, Yellow indicates pending, and Red indicates not ready or a fault.
6.4. O2 Sensor Test
This function retrieves O2 sensor monitor test results for the most recently completed tests from the vehicle's on-board computer. This helps in diagnosing fuel efficiency and emission-related issues.
- From the Diagnostic Menu, select "O2 Sensor Test" and press WOLE.
- Tẹle awọn itọnisọna loju iboju lati view awọn esi idanwo.
7. Itọju
7.1. Ninu Scanner
Lo asọ, damp cloth to clean the scanner's exterior. Do not use abrasive cleaners or solvents. Keep the screen free of dust and smudges for optimal visibility.
7.2. Ibi ipamọ
When not in use, store the NT201 scanner in its portable carrying case to protect it from dust, moisture, and physical damage. Store in a cool, dry place away from direct sunlight.

Nọmba 7.1: An open portable carrying case designed for the FOXWELL NT201 scanner, showing the scanner and its cable neatly organized within the case's compartments. The case provides organized protection for the device.

Nọmba 7.2: A diagram illustrating the dimensions of the portable carrying case, showing its length, width, and height. This case is suitable for the FOXWELL NT201 and similar diagnostic tools.
8. Laasigbotitusita
If you encounter issues with your NT201 scanner, refer to the following common problems and solutions:
| Isoro | Owun to le Fa | Ojutu |
|---|---|---|
| Scanner ko ni agbara lori. | Loose connection to DLC; Vehicle ignition not ON; Vehicle battery low. | Rí i dájú pé okùn OBDII so mọ́ ara rẹ̀ dáadáa. Yí iná ọkọ̀ padà sí 'ON'. Ṣàyẹ̀wò ìwọ̀n batiri ọkọ̀ náà.tage. |
| Aṣiṣe ibaraẹnisọrọ pẹlu ọkọ ayọkẹlẹ. | Incorrect protocol; Faulty DLC; Vehicle not OBDII compliant. | Verify vehicle is OBDII compliant (1996 or newer for most regions). Check DLC for damage. Try on another compliant vehicle. |
| Screen display is dim or unreadable. | Environmental conditions; Screen damage. | Move to a better lit area. If damaged, contact support. |
9. Awọn pato
- Ifihan: Afẹyinti LCD
- Iwọn Iṣiṣẹ: 0 si 60°C (32 si 140°F)
- Ibi ipamọ otutu: -20 si 70°C (-4 si 158°F)
- Agbara ita: Agbara 8.0 si 18.0 V ti a pese nipasẹ batiri ọkọ ayọkẹlẹ
- Awọn Ilana Atilẹyin: KWP2000, J1850 VPW, ISO9141, J1850 PWM, CAN
- Ibamu: Most 1996 and newer OBDII compliant vehicles (cars, light trucks, SUVs, minivans, hybrids). Does not support electric vehicles or 24V heavy-duty trucks.
10. Atilẹyin ọja ati Support
For warranty information or technical support, please refer to the FOXWELL official webojula tabi kan si wọn onibara iṣẹ taara. Tọju iwe-ẹri rira rẹ fun awọn ẹtọ atilẹyin ọja.
FOXWELL Official Webojula: www.foxwelltech.com