F-CON V PRO CF ADAPTER R3542999 AN001 PRODUCT OUTLINE This adaptor is for the vehicles with F CON V pro installed. Installing this adapter can prevent lighting of the CEL and cancel the fail safe mode control, which are unnecessary when using F CON V pro, for more reliable control. When F CON V pro controls the fuel and valve timing, the factory ECU recognizes these values as abnormal values, and the CEL may come on. This is unnecessary for the vehicles controlled by F CON V