trock will not crank over on 1992 Dodge Dakota

my truck will not srart it was ok had friend change part known to go out under distributer cap it won't even crank over . had starter checked it is ok. it will start if crossed terminals at starter where do i check next?

Asked by for the 1992 Dodge Dakota
The starter relay is a good place to start. The starter relay is located in the Power Distribution Center (under the hood). Also check the transmission Neutral Safety Switch as this input is needed for the starter relay to energize.