Suzuki 2003-2007 DF60 DF70 Outboard Motors Service Manual, Page 97Get this manual
ENGINE CONTROL SYSTEM
CHART12: ENGINE CRANKED, BUT NOT START (OR STOPS SHORTLY AFTER STARTING)
Before starting this troubleshooting, make sure that: There is no self-diagnostic code indication Emergency stop switch plate is set in placeSTART
Ignition switch "ON"Check "30" terminal voltageIs result OK? (See page 3-38CrankingCheck injector operating soundIs result OK? (See page 3-40 NOIgnition switch "OFF"Check fuel injector resistanceIs result OK? (See page 3-39 YESIgnition switch "ON"Check "40, 39, 38 and 22" terminal voltageIs result OK? (See page 3-38 YESCrankingCheck fuel injector operating signalIs result OK? (See page 3-40 YES Fuel injector failureIgnition switch "ON"Check "37" terminal voltage for secafter switch ONIs result OK? (See page 3-38 Possible cause: Failure of high pressure fuel system componentsNO YES NO NO YES ECM main relay failureIgnition switch "ON"Check "2" terminal voltage Is result OK? (See page 3-38 YES YESCrankingCheck ignition spark using timing light(Pno09930-76420)Is there light flashing? NO NO Emergency stop switch failure