Different vehicle series adopts different diagnostic protocol, even for the same series, the protocol adopted continuously changes and updates. In Fcar auto diagnostic tool, 7 types are concluded, basically including all kinds of communication protocol currently available.
CAN communication protocal
VW protocol
VPW format: Variable pulse width. Logical width uncertain, with depends on rising edge or failing edge. Logic 1 expresses in wide pulse in rising edge or narrow pulse in failing edge.
PWM format: PWM is pulse width modulation. It has 2 lines, one pull-up, and another pull-down. Using pulse width length to represents Logic 1 and 0.
Benz with additional bit protocol
flashing code formatter: its feature is to obtain fault code information through measuring the number of pulse outputted on diagnostic line after triggering diagnostic function of ECU.
 Wide Power Design
Voltage change between 9~27V of Fcar computer diagnostic tool enables to support 12V as well as 24V gasoline vehicles. Fcar vehicle diagnostic scanner is a scanner that can support both gasoline and diesel version.

F3-G computer diagnostic tool adopts the advanced modularized design technology which is capable of diagnosing and learning a variety of Chinese, European, American, Japanese and Korean gasoline, truck power system quickly and easily.

Actually F3-G computer diagnostic tool is the only computer diagnostic tool that can test both gasoline and heavy duty trucks in one scanner. it includes F3-W and F3-D all functions.
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Why Choose Us
Strict marketing control policy
Heavy duty truck diagnosis leading brand
Professional R& D team and local technical support service
Management experience and Powerful  industry relationships