It would stop the high speed fan from coming on, it might set a check engine light if the PCM tries to turn the high speed fan on.

 

OK, I thought about a Check engine light. Other than that it would not harm anything, is that correct? I'm waiting on a relay checker before I start replacing any relay's.

 

You would be further ahead with a heavy duty test light or inexpensive multimeter..

Either of the above would tell you if a relay is working correctly or not.

 

Now it sounds like your planning on driving without your highspeed fan, thats a bad idea as it increases the chance the engine will overheat.
I assumed you meant removing the relay for checking in your driveway.
Relay testers are useless, you can swap relays to test if a relay is good or not.

 

OK, Thanks you have been a wealth of info. Stay well !

 

Hello again, I've been experimenting this weekend. This is what I've noticed.
Until now I've been using the A/C Max button, this is when I notice the High speed fan coming on. Does this have anything to do with the A/C pressure or pressure sensor?
Every time I went out today I just used the normal A/C button, No problem at all with the High speed fan coming on. Maybe I just figured out the problem ???

 

If both the low and high speed fans work fine when the AC is turned off and the high speed fan comes on when the max ac is turned on it would likely be a AC issue.
If I were you I would see about getting the forscan program to do on demand tests and look at what sensors are reading.