This OEM looking set of connectors are just inside the center console, left side (on LHD), fit perfectly together. But on my car they were apart. 4 wires each. Anyone know what circuit that is?

 

What are the colours of the wires?

As most of the wiring in modern cars is complex, the colouring is denoted as a base colour and a stripe colour. Generally referred to as base colour first stripe colour second.
E. G. Red /White - meaning predominant colur is red with a white stripe or band added.

If you can provide the colours of your wires in that plug, we stand a good chance of figuring out the plug number and purpose.

 

The wires are:
WhiteRed
BlackWhite
White
Black

and

Green
WhiteGreen
PurpleBlack
Black

 

Ok.....I think I may have found something for you.

IP66 - 4 Way /Black plug with wires:
White/Red
Black/White
White
Black

Connects to in car temperature sensor.
I am wondering if the sensor module has wire tails on it rather than taking the four pin plug directly.
If so, the tail wire colours might change without it being noted.
Check to see if the Green, White/Green, Purple/Black and Black wires do go to the sensor that exists behind the small grille between steering wheel and centre console.

 

My guess is that a previous owner could hear the temperature sensor fan running, thought it was stuck On as it never seems to stop, and disconnected it. However, if it is working correctly, it will run on for some time after the car has been shut down and locked - so you don't hear it stop - and then it restarts as soon as you unlock and open the door, so you don't hear it start!

 

And if it's dirty, it's noisier than it should be. A shot of computer compressed air cleared mine.

 

You don't know how many times a customer would tell me IT NEVER SHUTS OFF!!!!!!!!!!!!!

 

You guys were right, it's the temp sensor with fan. It seems to work though. Can't find a wording for it in my fuse list, what fuse controls it on 2003?
(took it out to clean it. I took me an hour to get it back in, drew blood and I taught myself new words! )

 

Supplied voltage from common fuse 49 in the passenger junction fuse box, but internal fan driven via earth return through climate controller plug IP101 pin 5 (black/white wire).

 

Ha, now I know why it was disconnected, the temperature sensor fan. It started up when I was in the car cleaning it, I got a chock, man it was loud, clearly faulty. So I've disconnected it. Should I get a new one, how does it affect the AC not being connected? (car is still a week from being able to drive)

 

Without any internal temp reference it probably won't be able to maintain your desired set temperature.

Possibly a similar fan construction to laptop micro fans, sintered bronze bearings that get gummed up and then run rough.
I've successfully dismantled many of those fiddly fans over the years to clean them out with some IPA and relube with a drop of 3in1 oil.
Usually the fan shaft is retained by a single split neoprene washer that might be hidden under a cover dot.

 

Funnily, I bought this car while my wife was on vacation with her mother. My wife is used to that I buy and sell stuff, I sent her a picture, but it didn't get through. Now she's home, she saw the car, and she loves it! Inside and out, she says it's maybe the most beautiful car we've owned . She likes the "waves" on the bonnet/hood especially.

She might steal it from me, may have to get another.

 

My recollection is there was a TSB on the issue. The JLR solution to customer objections to the "noise" was disconnect (and possibly remove) the fan.

 

C2S13944

 

I got a new fan/sensor via ebay now and installed. It seems to help the AC do a good job and I can hear the fan, but not very loud, so probably WAD

 

It was the sun sensor that became redundant, fitted at one end of one of the dash vents, but not fitted by Jaguar after about 2002 or 3?

Internal temperature sensing is essential to climate control, but not air conditioning.