[V8] Climate control codes - AC not cold.

[John Bysinger]

With all the lovely summer temperatures we've had up here in Seattle, I
thought I would see if I could get the v8 to actually blow cold air again.
Checked low-side pressure, both running and off, and it seems to be holding
just fine, so I'm guessing a leak isn't the issue.  Checked the archives
and pulled codes from the climate control system, it flashes '01  09.
Which the archives seem to indicate a coolant temp sensor?  Behavior wise,
the clutch doesn't seem to be engaged, which seems to match behavior for
that sensor.

Should I just blindly replace the sensor, or does anyone have tips to check
it before I do.  I'm also curious about the '01 before 09.  I wasn't able
to find any info out on what '01 might mean.

Thanks as always,

-John
'91 V8Q