1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 326Get this manual
DF40DF50 "Y" (00) model 12-8 SELF-DIAGNOSTIC SYSTEM INDICATION When the abnormality occurs in signal from sensor, switch etc the "CHECK ENGINE" lamp on the monitor-tachometer flashes (lights intermittently) according to the each code pattern with buzzer soundingPRIORITY FAILED ITEM MAP sensor CODE 34 on off on off on off on off on off on off on off on off on off on off LAMP FLASHING PATTERN FAIL-SAFE SYSTEM ACTIVATING YES
CKP sensor
IAC valveBy-pass air screw adjustment
CMP sensor