1998 Johnson Evinrude "EC" 9.9 thru 30 HP 2-Cylinder Outboards Service Manual, Page 312Get this manual
Dash Connections, Instrument Harness 3-pin connectorConnect to trim switch located in the handle of the remote control or to trim switch mounted on the boat dashOn models without power trim, protect the open connector by installing 3-pin plug, PIN 586072 (not supplied)6-pin connectorConnect to prewired remote control or to dash-mounted key switchBlack, purple, whitetan wiresConnect to the trim gaugeOn models without power trim, leave the protective insulation on whiteltan and purple leads8-pin connectorConnect to inSystem Check gauge or to in System Check tachometerIf neither gauge is available, install an Audible Adapter, PIN 1764582-pin connector installations