2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 315Get this manual
Yamaha Diagnostic System NOTE: If the engine is running an error message is displayedFollow the instructions that appear(Fig26)
Fig26 6While checking the information that appears in the Test situation column, follow the test instructions in the messages that are displayed(See fig25 NOTE: If an error occurs while the test is being performed, an error message is displayedFollow the instructions that appear in the error message(Fig27)