Looking for the outside air temp sensor
 

My AC controls says the air temp outside the vehicle is 52 degrees so the AC is not blowing cold.

The air temp here in Louisiana is right now 91 degrees not 52. I'm looking for the sensor that tells the AC control system the temp is 52.

Where is it? I'm having trouble with the terminology in the workshop manual.

Year of Range Rover would help.

1998 4.0
 

I've spent all day trying to understand the Range Rover AC system. I never knew a system so complicated as this one.
The only thing that haunts me is spending money on the wrong part.

I bought the RR when times were great, but now I'm retired like others and Liberals in charge has drained the savings of so many of us.
I do enjoy the looks of the RR and even though it's 15 years old I'd like to keep it together.
My big information search today is understanding if the ambient temp sensor alone can cause the AC system to act like it does.

I had a Chevy surburban 10 years ago and the engine temp failed. The sensor told the main computer it was -22 degrees below zero, so the computer was pouring gas to the engine choking the engine and black unspent fuel pouring out of the tailpipe. Like today, it was really 95 degrees.
The sensor cost $99 and the truck was fine. When the sensor failed, it went to the lowest builtin scale which was -22*

I can easily replace the ambient sensor, but I'm trying to understand if a bad sensor can cause my problem before I waste hard to come by dollars.

The blowers sound weird as if the ducts are blocked and blows air and it tries to cool the cabin, but if the ambient sensor is telling the AC computer it only 52 degrees outside, will the AC computer stop trying to chill the cabin and the BOOk icon appears on the screen?

Did I confuse everyone with a long post? Sorry

From the RAVE electrical rtroubleshooting guide for 97-99, page 220 0f 578;

Ambient Sensor

This sensor measures the temperature of the
external air flow into the vehicle.

For vehicles with VIN’s up to 381430:

The ambient temperature sensor is located behind the
drivers side of the fascia.

For vehicles with VIN’s from 381431:

The ambient temperature sensor is located behind the
LH side of the vehicle in front of the condenser. The
revised location improves the response time of the
sensor. The new HEVAC software will not update the
ambient temperature sensor readings unless the
vehicle is travelling over approximately 15 mph (25
km/h). The HEVAC software will therefore not automatically
correct temperature readings when a faulty
ambient temperature sensor is renewed.

Temperature Resistance (Ohms)

–20

can it be changed from English to metric like a DII?

This is part of my problem
 

What is and where is the Fascia?

Please help me to understand the lingo.

Thanks

Lower dash panel. See page 397 0f 578 in the electrical troubleshooting manual, has pix of location.

I have the Rave CD
 

I looked and looked at the CD but it didn't make sense until you gave the page number

The Fasica is the dash, I thought it was the firewall. That was my error in thought. I guess it was my Tennessee upbringing.

Thanks, I think I finally got in my head,

You have opened my eyes, Thanks again.

I found it
 

I found the Outside sensor and disconnected it from the wiring harness, but it's too big to remove through the pollen filter duct.

Does that mean I have to pull the blower motor out to retrive the sensor from the air duct?

If that's true, I understand why Land Rover moved the sensor to the engine compartment.

My RR is the earlier 1998 with the sensor in the duct work. It would have been a snap if the sensor was designed to pulled out from the side of the duct with the wiring instead of installing it on the inside of the duct before the blower was installed.

very poor design for replacement ease.

If you have replaced yours tell me if there is a trick to it.

Thanks

I got it out!
 

After several thoughts about pulling the blower out I decided to give the pollen shaft another try.

With a little wiggiling the ambient sensor came out!!

Now I'll be looking for a new one....

Thanks for all the help!