2006-2010 Suzuki DF150 / DF175 4-Stroke Outboards Service Manual, Page 131Get this manual
ENGINE CONTROL SYSTEM
CHART 3: SELF-DIAGNOSTIC CODE "1-4" Cylinder tempsensor
START Ignition switch "OFF" Check cylinder tempsensor resistanceIs result OK? (See page 3-51 YES Possible cause: ECM failure Wire continuityconnection failure NO Cylinder tempsensor failure
CHART 4: SELF-DIAGNOSTIC CODE "2-3" IAT sensor