Audio warning systems 5.7l

jpnova70

  Would anyone have an electrical schematic on the audible warning system? I realize it is a simple system to diagnose but cannot seem to get it to self test. If I ground out the speaker it goes off. If I ground out any of the 3 sensors it does not. Could it be that timer mounted under the speaker? can I just bypass that ? At what temperature does the switch trip for the cooling?

  Any info would be great this is a 1992 Fiesta Vee. 5.7l.

wilsonjohn@coned.com

Thanks a bunch.....