hmm....I might have to test that on my echo...but currently it's soaking wet
. Took seats out and hosed them down and scrubbed with simple green--they are drying right now.
To the best of my knowledge--and I could be wrong on this, is that the radiator fan is independent of the air conditioning. I know on my corolla, the radiator fan doesn't kick on (with a/c going on not) until about 1-2 minutes parked on a warm day (for example coming back from the store). So if i come home, keep the car running, the a/c is going..the radiator fan will not come on until maybe right as I get out of the car to open the gate..then I'll hear the fan kick on and whirl up...runs for about 20 seconds or so then shuts off for a minute or so..then kicks back on again.
* I would go for a drive...get the car nice and warm. Come back home, put it in park/neutral w/ parking brake..and chill for a few moments--do this on a warm day--and see if the radiator fan kicks on or not. Try it with the a/c running and not running.Those links will show you how to test the fan bypassing the t/stat to test functionality. If you go up on the path/URL on that service manual link it will get you to the table of contents.
Please let me know how it works out--and good luck!
Love live the Echo!
Keep me posted.