1. Einleitung
This manual provides comprehensive instructions for the operation and maintenance of your FOXWELL NT604 OBD2 Scanner and BT100 Pro Battery Tester. These devices are designed to assist in diagnosing vehicle issues and assessing battery health, providing valuable information for vehicle maintenance.
The FOXWELL NT604 is an advanced diagnostic scan tool capable of reading and clearing fault codes, displaying live data, and performing various tests on key vehicle systems. The FOXWELL BT100 Pro is a professional battery analyzer designed to test 12V batteries, providing accurate readings on battery voltage, CCA, internal resistance, and overall health.
2. Einrichtung
2.1 Auspacken des Geräts
Carefully remove all components from the packaging. Verify that all items listed in the product packaging are present. Retain the packaging for future storage or shipping.
2.2 Erstes Einschalten
The NT604 scanner typically powers on when connected to a vehicle's OBD-II port. The BT100 Pro battery tester powers on when connected to a 12V battery.

Figure 2.1: The FOXWELL NT604 OBD2 Scanner and BT100 Pro Battery Tester.
3. Bedienung
3.1 FOXWELL NT604 OBD2 Scanner Operation
The NT604 scanner connects to your vehicle's On-Board Diagnostics II (OBD-II) port to access vehicle system information.
- Suchen Sie den OBD-II-Anschluss: The OBD-II port is usually located under the dashboard on the driver's side.
- Schließen Sie den Scanner an: Plug the NT604's diagnostic cable into the vehicle's OBD-II port. The scanner will power on automatically.
- Fahrzeugkommunikation: The scanner will attempt to establish communication with the vehicle's ECU (Engine Control Unit). Follow on-screen prompts.
- Hauptmenünavigation: Use the navigation buttons (up, down, left, right, OK, ESC) to select desired functions from the main menu. Common functions include:
- Codes lesen: Retrieves Diagnostic Trouble Codes (DTCs) from the vehicle's systems.
- Codes löschen: Erases DTCs from the vehicle's memory. Note: Clearing codes does not fix the underlying problem. Address the issue before clearing codes.
- Lebensdaten: Zeigt Echtzeit-Sensordaten vom Fahrzeug an.
- Freeze Frame: Erfasst eine Momentaufnahme der Fahrzeugbetriebsbedingungen zum Zeitpunkt des Auftretens eines Fehlercodes.
- I/M-Bereitschaft: Überprüft den Status von Emissionsüberwachungsgeräten.
- Systemdiagnose: Accesses specific vehicle systems like Engine, ABS, SRS (Airbag), and Transmission for detailed diagnostics.

Figure 3.1: The NT604 scanner's main menu showing various OBDII functions.

Figure 3.2: The NT604 scanner's capability to diagnose Engine, ABS, SRS, and Transmission systems.
3.2 FOXWELL BT100 Pro Battery Tester Operation
The BT100 Pro is designed for testing 12V automotive batteries. It can perform tests both in-vehicle and out-of-vehicle.
- Bereiten Sie die Batterie vor: Stellen Sie sicher, dass die Batteriepole sauber und frei von Korrosion sind.
- Schließen Sie den Tester an:
- Verbinden Sie die roteamp an den Pluspol (+) der Batterie.
- Verbinden Sie die schwarzeamp an den Minuspol (-) der Batterie.
- Das Testgerät schaltet sich automatisch ein.
- Testtyp auswählen:
- In-Vehicle Test: For batteries installed in the vehicle.
- Out-of-Vehicle Test: For standalone batteries.
- Batterietyp auswählen: Choose the correct battery type (e.g., Regular Flooded, AGM Flat Plate, AGM Spiral, GEL) from the menu. Incorrect selection may lead to inaccurate results.
- Enter CCA Rating: Geben Sie den Kaltstart ein Amps (CCA) rating found on the battery label.
- Test durchführen: The tester will perform the analysis and display results such as:
- Bandtage
- Gemessener CCA
- Innenwiderstand
- Gesundheitszustand (SOH)
- Ladezustand (SOC)

Figure 3.3: The BT100 Pro supports both in-vehicle and out-of-vehicle battery testing.

Figure 3.4: The BT100 Pro provides detailed battery status including internal resistance, CCA, and health display.
4. Wartung
4.1 Reinigung
Wischen Sie das Gerät mit einem weichen, damp Mit einem Tuch abwischen. Keine Scheuermittel oder Lösungsmittel verwenden. Das Gerät vor der Lagerung vollständig trocknen lassen.
4.2 Softwareaktualisierungen
Periodically check the FOXWELL official website for software updates for the NT604 scanner. Updates can improve performance, add new features, and expand vehicle compatibility. Follow the instructions provided on the website for updating the device firmware.
4.3 Speicherung
Store the devices in a clean, dry environment, away from extreme temperatures and direct sunlight. Keep cables neatly coiled to prevent damage.
5. Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| NT604 lässt sich nicht einschalten. | Loose OBD-II connection; vehicle's OBD-II port fuse blown; vehicle battery low. | Ensure secure connection. Check vehicle's OBD-II port fuse. Verify vehicle battery voltage. |
| NT604 fails to link with vehicle. | Incorrect protocol selected; vehicle ignition off; faulty connection. | Ensure ignition is ON. Check cable connection. Try a different vehicle if possible to isolate the issue. |
| BT100 Pro does not power on. | Lose Batterieamp connection; battery voltage zu niedrig. | Stellen Sie sicher, dass clamps are securely attached to clean battery terminals. Test a different battery if available. |
| Inaccurate BT100 Pro readings. | Incorrect battery type or CCA entered; dirty battery terminals. | Verify battery type and CCA input. Clean battery terminals thoroughly. |
6. Spezifikationen
FOXWELL NT604 OBD2-Scanner
- Unterstützte Systeme: Engine, ABS, SRS (Airbag), Transmission
- OBDII Modes: 10 modes (Read Codes, Clear Codes, Live Data, Freeze Frame, I/M Readiness, Component Test, O2 Monitor Test, On-Board Monitor Test, Retrieve Vehicle Info, Modules Present)
- Energiequelle: Vehicle OBD-II port
FOXWELL BT100 Pro Battery Tester
- Batterie Voltage: 12 V
- Testbereich: 100-1100 CCA
- Unterstützte Batterietypen: Standardmäßig überflutet, AGM-Flachplatten, AGM-Spiralplatten, GEL
- Testergebnisse: Bandtage, CCA, Internal Resistance, State of Health (SOH), State of Charge (SOC)
- Energiequelle: Battery Powered (from the tested battery)

Abbildung 6.1: Bspample of battery test results displayed on the BT100 Pro.
7. Garantie und Support
7.1 Garantieinformationen
FOXWELL products are covered by a limited warranty against defects in materials and workmanship. Please refer to the warranty card included with your product or visit the official FOXWELL webAuf der Webseite finden Sie die detaillierten Garantiebedingungen.
7.2 Technischer Support
For technical assistance, software updates, or service inquiries, please contact FOXWELL customer support. Contact information can typically be found on the official FOXWELL webWebsite oder in der Produktverpackung.
WebWebsite: www.foxwelltech.com (Examp(Link, offizielle Website überprüfen)





