Join Date: Apr 2012
Location: 9000 ft. ASL in Southwest Colorado, USA
Thanked 3,643 Times in 1,938 Posts
There is an engine check light (at least on Thai built versions there is a CEL) on the instrument cluster, which if there are any fault codes stored in the ECU, will flash a series of short - long dashes when the ignition is first powered up. The factory CBR250R service manual has a list of the various fault codes.
Former Factory Test Rider/Technician