Okay, on my 2002 Wrangler, the a/c doesn't come on until the fan is on
the third or fourth position (either of the two highest speeds). Can
anyone tell me what's wrong? To date, I have attempted to correct this
by swapping out the instrument panel control unit (still the same
problem of uncooled air on the two low speeds and cooled air on the two
high speeds). Thanks for any help on fixing this!