2006-2010 Suzuki DF150 / DF175 4-Stroke Outboards Service Manual, Page 117Get this manual
ENGINE CONTROL SYSTEM
8If out of specification, check wire harnesses for open and shortIf wire harnesses are in good condition, replace MAP sensor and recheckTPS (Throttle position sensor)09930-99320: Digital tester 09930-89340: 26-pin34-pin test cordTester range: (DCV (See chart for range 1Turn ignition switch OFF2Connect the 24-pin34-pin test cord between ECM and wire harness as shown in figure3Connect tester probe ("+", Red) to No.16 terminal4Connect tester probe ("-", Black) to No.49 terminal (or to body ground)5Turn the ignition switch ON1TPS
6Check for sensor output voltageSlowly move the throttle lever to open, and check if voltage changes linearly within specification, according to throttle valve opening angleSensor output voltage: FCT positionApprox0.7 WOT positionApprox3.8 V