How to provide power to Foxwell AutoMaster NT644

The Foxwell NT644 is a professional level diagnostic handheld tool, offering comprehensive system coverage for a vast array of car manufacturers.


This unit has been specifically designed for the European market, and includes many high-end features such as Electronic Park Brake wind-back functions and Service Light reset functions.

Here we’d like to share with you how to provide power to NT644, provides brief introductions of applications loaded on the scanner and display screen layout and illustrates how to input text and numbers with Foxwell NT644foxwell-nt644-share-1


There are two ways to provide power for NT644 :

Provide power to the scanner before using the scanner
The unit operates on any of the following sources:
*12-volt vehicle power
*USB connection to personal computer

1) Connecting to Vehicle Power
The scanner normally powers on whenever it is connected to the data link connector (DLC).
To connect to vehicle power:
1. Locate the data link connector (DLC). The DLC is generally located under the dash on the driver side of the vehicle.

2.Attached the diagnostic cable to the scanner and tighten the captive screws to ensure good connection.
3.Connect a correct adapter to the data cable according to the vehicle being serviced and plug it into the vehicle DLC.
4. Switch the ignition key to the ON position.
5.The scanner automatically boots up.

Please Kindly Notice:
Never try to provide power for the scan tool from USB connection when the scan tool is communicating with a vehicle.

2) Connecting to Personal Computer with USB Cable

The scan tool also receives power through the USB port when it is connected to a PC for updating software and transferring saved files.
To connect to PC:
1.Insert the small end of the USB cable to the USB port at the right side of the scanner and the large end to a computer.
2. Press the power switch of the scan tool to power it on.


that’s all the information about How to provide power to Foxwell AutoMaster NT644, hope it can help you.

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