1. Introduction
The FOXWELL NT604 OBD2 Scanner Diagnostic Tool is designed to provide comprehensive diagnostic capabilities for various vehicle systems. This manual outlines the features, setup procedures, operational guidelines, maintenance tips, and troubleshooting steps to ensure effective use of the device. It is intended for both automotive enthusiasts and professional technicians seeking to diagnose and resolve vehicle issues related to the Engine, Anti-lock Braking System (ABS), Supplemental Restraint System (SRS), and Transmission.
Image: Front view of the FOXWELL NT604 OBD2 Scanner Diagnostic Tool, displaying its screen and control buttons.
2. What's in the Box
Upon unboxing your FOXWELL NT604 Diagnostic Tool, please verify that all the following components are included:
- 1 * Foxwell NT604E Scan Tool
- 1 * Diagnostic Cable
- 1 * USB Cable
- 1 * User Manual
- 1 * Quick Guide
Image: All components included in the FOXWELL NT604 product packaging, laid out for inspection.
3. Product Overview
The NT604Elite-b features a robust design with a 4.3-inch color screen for clear display of diagnostic information. It includes dedicated function buttons (F1, F2, F3) and navigation keys (up, down, left, right, OK) for intuitive operation. The device is designed for durability, offering water, dust, and impact resistance, and comes with a protective case for daily storage.
Image: The FOXWELL NT604 scanner emphasizing its enhanced diagnostic speed, one-click WiFi update capability, and the durable protective case.
4. Setup
The FOXWELL NT604 is designed for plug-and-play operation, requiring no prior registration. It ships pre-registered with the latest software preloaded for immediate use.
4.1. Initial Connection
Simply connect the diagnostic cable from the NT604 to your vehicle's OBDII port. The device will power on automatically.
4.2. Software Updates via WiFi
The NT604 supports one-click WiFi updates, eliminating the need for subscription fees or manual SD card downloads. Ensure the device is connected to a stable Wi-Fi network to receive the latest software and vehicle data updates.
- From the main menu, navigate to 'Settings'.
- Select 'WiFi' and connect to an available network.
- Once connected, select 'Update' to check for and download available software packages.
- Confirm the download and installation process.
Image: A visual guide demonstrating the steps to update the FOXWELL NT604E software using a WiFi connection.
5. Operating Instructions
The NT604 provides comprehensive diagnostic functions for various vehicle systems. Below are the key operational modes.
5.1. AutoVIN Technology
The AutoVIN feature automatically retrieves your vehicle's VIN and other details, streamlining the diagnostic process by eliminating manual entry.
Image: An illustration demonstrating the automatic VIN retrieval capability of the scanner.
5.2. 4-System Diagnostics (Engine, ABS, SRS, Transmission)
The NT604 specializes in diagnosing the four most critical vehicle systems:
- Engine System: Reads and clears engine fault codes, monitors real-time data, and identifies issues like spark plug malfunction, fuel filter clogging, and coolant leaks.
- ABS System: Diagnoses Anti-lock Braking System faults, including warning light illumination, wheel lockup, reduced braking efficiency, and other common issues related to sensors and pump failures.
- SRS System: Checks the Supplemental Restraint System for airbag malfunctions, gas generator issues, airbag clockspring problems, and wiring faults.
- Transmission System: Identifies transmission-related problems such as clutch slippage, incomplete clutch disengagement, transmission gear jumping, and abnormal noises.
Image: A visual representation of the four main diagnostic systems covered by the scanner: Transmission, SRS (airbag), ABS (braking), and Engine.
Image: The FOXWELL NT604 scanner screen showing the options to read and clear diagnostic trouble codes for the Engine, ABS, SRS, and Transmission systems.
5.3. Comprehensive OBDII Diagnostics
The NT604 supports all OBDI/OBDII protocol vehicles and offers the following standard OBDII functions:
- Read Codes: Retrieves Diagnostic Trouble Codes (DTCs) from the vehicle's computer.
- Clear Codes: Erases DTCs from the vehicle's computer and turns off the Malfunction Indicator Lamp (MIL).
- Live Data: Displays real-time data stream from various sensors and actuators (e.g., RPM, O2 voltage).
- Freeze Frame: Captures a snapshot of vehicle conditions at the moment a fault code is set.
- DTC Lookup: Provides definitions for generic and manufacturer-specific codes.
- I/M Readiness: Checks the readiness of the emission monitoring systems to determine if the vehicle is ready for a smog test.
- Component Test: Allows testing of specific components or systems.
- Modules Present: Identifies communication modules present in the vehicle.
- Retrieve Vehicle Info: Displays vehicle information such as VIN, calibration IDs, and calibration verification numbers.
- On-Board Monitor Tests: Retrieves results for on-board diagnostic monitoring tests of specific components/systems.
Image: The FOXWELL NT604 screen showing the 10 comprehensive OBDII diagnostic modes available for vehicle analysis.
5.3.1. Real-Time Live Data
Monitor various sensor and actuator data in real-time to troubleshoot issues effectively. This includes parameters like accelerator pedal position, wheel speed sensor values, short term fuel trim, and battery voltage.
Image: A visual representation of the real-time live data display on the FOXWELL NT604, showing various vehicle parameters for diagnostic purposes.
5.3.2. O2 Sensor Test
Perform O2 sensor tests to evaluate engine performance, fuel efficiency, and emission compliance. This helps identify issues indicated by warning lights or exceeding emission standards.
Image: An illustration depicting the results and implications of an O2 sensor test, including engine performance degradation and emission issues.
5.3.3. Freeze Frame Data
Access freeze frame data to understand the conditions under which a Diagnostic Trouble Code (DTC) was set. This helps in accurately locating problems and improving diagnostic efficiency.
Image: An illustration showing the concept of Freeze Frame data, which records vehicle performance at the time a fault occurs.
5.3.4. Battery Voltage Display
The NT604 can display your vehicle's battery voltage in a graph, providing quick and accurate assessment of battery health. This helps determine if the battery is too low, normal, slightly low, or too high, indicating potential issues.
Image: A graph illustrating various battery voltage levels and their corresponding interpretations (e.g., too low, normal, too high).
5.4. Vehicle Compatibility
The NT604 diagnoses over 10,000 models across more than 60 car brands, covering virtually all OBDII-compliant vehicles globally, including Asian, European, and American passenger cars, SUVs, minivans, and light-duty trucks produced between 1996-2025.
Image: A comprehensive list of car brands from USA, European, and Asian markets that are compatible with the FOXWELL NT604 diagnostic tool.
6. Maintenance
To ensure the longevity and optimal performance of your FOXWELL NT604, follow these maintenance guidelines:
- Storage: Always store the scanner in its included protective case when not in use. The case provides resistance against water, dust, and impacts.
- Cleaning: Use a soft, dry cloth to clean the device. Avoid using abrasive cleaners or solvents.
- Software Updates: Regularly connect the device to Wi-Fi and perform one-click software updates to ensure you have the latest vehicle data and diagnostic capabilities. These updates are free for life.
- Cable Care: Handle the diagnostic and USB cables with care. Avoid sharp bends or excessive pulling that could damage the connectors or wiring.
7. Troubleshooting
This section addresses common questions and issues you might encounter with your NT604 scanner.
- Why can't this scan tool clear fault codes for my car?
To successfully clear fault codes, you must first repair the underlying problem in the vehicle. The scanner can only clear codes once the issue is resolved. - Can I clear airbag crash data after replacing a new airbag?
Airbag crash/collision data cannot be cleared by the NT604, even after replacing the airbag. This requires specialized tools. - Will NT604 support maintenance reset functions like ABS bleeding, transmission maintenance, oil light reset, or EPB service?
No, the NT604 is tailored for accurate diagnosis and does not support maintenance reset functions. For such functions, consider other FOXWELL models like the NT614 Elite or NT624 Elite. - Is this car scanner user-friendly for beginners?
Yes, the NT604 Elite scanner is designed for ease of use. It is plug-and-play, and its intuitive interface allows for navigation even without extensive prior experience. - Automatic VIN function takes too long or fails.
While 99% of cars have an automatic VIN function, if it takes too long to obtain the VIN code automatically, please stop the process and manually enter the VIN.
Image: A visual representation of common Frequently Asked Questions (FAQs) regarding the FOXWELL NT604 Elite scanner and their answers.
8. Specifications
| Model | NT604Elite-b |
| Item Weight | 2.03 pounds |
| Product Dimensions | 7.68 x 3.54 x 1.18 inches |
| Display Resolution | 480x272 |
| Operating System | Easy to Use |
| Automotive Fit Type | Universal Fit |
| Date First Available | June 18, 2021 |
9. Warranty and Support
FOXWELL is committed to providing reliable products and excellent customer service. Your NT604 comes with a one-year after-sales service for orders beyond the initial 30-day Amazon return period. For any usage or quality issues within one year, please contact FOXWELL directly through your Amazon order interface.
You will benefit from a detailed user manual, dependable after-sales support, and remote guidance from our engineers. Our software is continuously updated to keep pace with the latest vehicles, ensuring your tool remains effective and relevant.
Image: An overview of FOXWELL's customer support offerings, including lifetime updates, warranty, and technical assistance.
