Chevy Impala
Engine size = 3.4L
dash lights = yes
codes p0480 and p0481 - now just p0481
AC line about 3 months prior. The hard line upfront in
the same area.
Changed relay and fuses on fans 1 and 2
tech = JK or anyone
question = I changed relays on number 1 and 2 fans and also changed the
fuses for each.
I cleared the codes with my pocket scanner.
Good for about 3 days.
The light comes back on & blows fuse.

Same code set PO481. I cant keep fuse form blowing - car runs hotter
but does not overheat. 1 fan is not working
Cant see a broken wire or anything  
do I need a fan motor ?

JK:
Hello and welcome.
What year is your impala please.....
Other related articles:
2006 Chevy Impala LS V6.
Question =  When I turn the dial on my thermostat to any temp setting a loud clicking noise
comes from under the dash. After a minute or two it will go away, but as soon as I turn it again
the clicking noise comes back..How can I fix this problem myself and what do I need to do it..
Thanks
Answer: When you adjust the temperature on the HVAC control head, it
sends a signal to an actuator that moves the temperature door inside the
heater case to the appropriate level. The clicking you hear is the actuator
trying to turn, but can't because something is binding or broken. You'll
probably need to replace the temperature door actuator to correct this. You
may also want to check the temperature door itself and make sure the tab
that fits into the actuator is not broken off. If you have dual temp control,
there are two actuators. One is on the left side of the heater case and the
other is on the right side. You may want look under the dash, after removing
the trim, kick panels, etc, and listen to see which one it is. It's not that difficult
to replace an actuator, they are kind of far up in the dash but accessible
enough to change.