Outside Temperature Sensor '90 90Q20v

[Andrew Duane USG]

Hairy green toads from Mars made Sperry, Peter  A -Syntegra US say:

> Driving my wife's 90 this weekend, I noticed that the outside temperature is
> WAY below what it actually is.  It responded to changes in temperature (I
> watched it at several times during each day when I knew what the actual
> outside temp was).  Is there more than one sensor for outside temp?  Where
> are they located and does this sound like the problem?

There are two sensors, one right behind the grill, in front of the
radiator; one in the air intake plenum for the climate control, right
beneath the passenger side of the windshield. The C/C uses the
lower of the two temperatures to display.

There is a chart in the Bentley about what resistance is equal to
what temperature, so you can test them with a thermometer and a
multimeter. However, I have found that it is almost *always*
corrosion on the connector for the behind-the-grill one.

It should be easy to find, it's about 3/4" in diameter, 1" long,
with two wires coming from it, usually just tie-wrapped to one
of the metal supports in front of the radiator. And the connector
usually has a trail of green crap on it.

Pull, clean, reseat, enjoy your drive.....

-- 

Andrew L. Duane (JOT-7)			duane at zk3.dec.com
Compaq Computer Corporation		(603)-884-1294
110 Spit Brook Road
M/S ZKO3-3/U14
Nashua, NH    03062-2698

Only my cat shares my opinions, and she's too psychotic to express it