1994 Dodge Ram

Make sure the battery has a full charge and the cables are ok. If your saying the starter won't crank, check the starter relay in the power distribution center, under the hood. The switch side of relay is usually hot all the time, the voltage for the coil side of relay goes hot with the key in the crank position. If this is an automatic, have you tried cranking in neutral?

One of the positive battery cables goes to the starter, check passenger side rear of engine, down low.