Verbatim from Chilton manual:
"When you turn the key and the starter motor doesn't operate at all but the starter solenoid does operate (clicks), then the problem lies with either the battery, the starter solenoid contacts or the starter motor connections".
"If the starter solenoid doesn't click when the ignition switch is actuated, either the starter solenoid circuit is open or the solenoid itself is defective. Check the starter solenoid circuit or replace the solenoid".
-"To check the starter solenoid circuit, remove the push on connector from the solenoid wire. Check that connection is clean & tight. If connector looks clean, test with jumper wire. Place car in park. Remove the push on connector from the solenoid. Connect a jumper wire between the battery positive terminal and the exposed terminal on the solenoid. If the starter motor now operates, the starter solenoid is OK. The problem is in the ignition switch, Transmission Range sensor Clutch Pedal Position Switch or in the starting circuit wiring-(look for open or loose connections). If the starter motor still doesn't operate, replace the starter solenoid.
-to test voltage to the stater relay, the relay is located below the steering column behind knee bolster. Use an Ohm meter, there should be continuity between the two switch terminals. The ignition swith is rectangular, has a clump of wires clipped to the left of it, is two toned thin black on left and fatter grey on right. Has two mounting screws top right hand and bottom rigt hand corners-
Good luck, hope that helps some- Robb