FCAR Tech F804 Diagnostic and Test Tools Black Scan

The Black FCAR Tech F804 is an Android-based scanner in the Diagnostic and Test Tools category. Its listed size is F804, and its UPC is 730851346759. It is intended for agricultural, construction, mining, off-highway and heavy-truck applications, including loaders, dozers, street sweepers, excavators and utility equipment.

The seller describes it as the only scanner that diagnoses both construction machinery and heavy trucks. It supports DPF regeneration on listed Caterpillar, Komatsu, John Deere, Volvo and Kubcat equipment. DPF regeneration burns accumulated soot; a clogged filter can reduce fuel efficiency and power, and failure to regenerate can lead to derating and engine shutdown.

The listing says cleaning the filter can improve mileage and throttle response, reduce passive regeneration and downtime, and extend DPF life. It also claims that shop maintenance costs 500-2000 dollars and that doing the work yourself could save enough over time to buy a new car.

At the OBD level, the F804 retrieves ECU information, reads and erases fault codes and freeze-frame data, and displays live data. Tablet functions include 1-click activation, screenshots, printing, updates and feedback; WiFi provides lifetime free updates.

It can save reports, screenshots and feedback files, and can print vehicle information, fault codes, data streams and interface information with an optional printer. Its pin-detection function measures voltage at the 16 PIN OBD interface and helps locate K-line and CAN-line pins when communication fails. A wiring-diagram function supports Cummins diagnosis through a jumper or jumper box.

The unit has 4 diagnostic ports, listed as OBDII, Diesel 6/9 and CAT -9. The seller compares its functions to 3 vehicle scanners and 1 DPF regeneration device.