[catback23]

I'd say if jumpering the S terminal with the battery + terminal doesn't work and you have the right terminals the solenoid is bad...Is the clicking you hear coming from the solenoid? Does the solenoid even click when you jumper it? A solenoid can still be bad even if it does click, I would say since you jumpered it and it didn't activate the starter that it's bad unless the battery and starter connections on it are in bad shape. If they appear corroded, dirty, or greasy try cleaning them up. Good luck with it hope this info helps even if only a little.