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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

KWP2000

VW protocol

VPW format: Variable pulse width. Logical width uncertain, with depends on rising edge or failing edge. Logic 1…

In order to diagnose and remove fault, connect Fcar auto scanner to diagnostic socket of vehicle, as shown in Pic.4-37.It has special functions as follow, such as engine off-cylinder running, test injection solenoid valve response time, calibrate and replace injector, take rapid sample of engine data, user can limitedly alter ECU program etc. under engine manufacturer restricted working condition or characteristic parameter.…

F3-W gasoline car scanner function:Testing the global mainstream gasoline + 12V diesel vehicles, reaching to the same effect with the OEM car scanner. Built-in high and low speed CAN-BUS,one diagnostic connector can test all the CAN-BUS vehicles. Support almost all OBD- II protocols. The following are some questions for using OBD11 scanner to diagnostic vehicle.                

Questions for using …

All electronically controlled engines will save DTCs in ECU memory after sensor out of normal operating range. When problems monitored, they will be sent back to ECU, some serious problems will cause yellow or red diagnostic light on instrument panel lighten, when yellow light on, power and RPM of engine will reduce; when red light on, indicates the problem that sensor detected is serious. If ECU has stop control function, then this function will be triggered. Some electronic control system…