How do I test the high side switch on my AC system to make sure it is working properly? Also, how can I jump it to see if my aux fan will run once the AC pressure has activated the switch? Lastly, are there any tricks to replacing the high side switch (e.g. - can I do this without removing the R134a)?

 

Seriously?! Nobody will help me out here?

 

If you just want to test your fan, disconnect the cts on your water neck your electric fan will automatically come on. Connect a multimeter actross your high switch set for continuity, connect pressure guages to system when proper pressure is achieved there should be continuity.

 

Jeep should be started for these tests. Just to clarify.

 

Tried to find a place where I could thank you formally, but to no success (newbness). I really appreciate your help though - Thanks!

 

yes the switch can be removed without losing most coolant. it is a valve underneath!