If it's stuck in defrost your battery died and messed up the computer.
Disconnect battery for 5 or more min.
My 96 cooled and heated ok but was stuck in defrost
It is on the lower passenger side of the firewall.
If you mean filter/dryer it is up front attached to the condenser. If you are looking for a cabin filter, It does not have one.
it takes a group 75. a good battery would be an ac delco 75-60.
The engine computer controls the fuel and ignition systems, along with the ac compressor, alternator, and cruise control. The transmission computer controls the transmission. The abs computer does abs brakes. The airbag computer controls the airbag. Etc.
Look under the hood in the power distribution box and you will see a group of relays and it will be the top one on row one (compressor clutch relay).........
You need to have the system hooked up to the gauges to see what the readings are. You MIGHT have a clogged orifice tube, but any good A/c shop will be able to line it out
It is in front of the radiator.
It does not have a cabin air filter.
Lower passenger side of the firewall.
"Which fuse controls the fan for the ac on a 2006 Chevy silverado?"
== ==
No, the wiring is different.