Makes you wonder what he had to be paranoid about.

 

aliens?

 

Do the lights automatically turn on at night, or maybe the rear view mirror auto tilt at night when a lot of light from the rear of the vehicle? It almost looks like a photo-cell of some sort.

 

It's the receiver for keyless entry.

 

Strange. I just ran in and looked it up in alldata, and they're calling it an "ambient light sensor".

 

I would agree only because i dont have it for my keyless entry, nor does my friends xj

 

They changed it through the years. My '01 didn't have it, either.

 

Seems like a waste of space

 

Keyless i found out i had it and bought a remote and went to the dealer ship and they programmed it for free

 

Yeah, it's definitely not the keyless entry. Keyless entry works on a radio frequency and would not need an ir sensor.

 

It's a keyless entry my 90 Cherokee has it and here's the thread where I asked the same question
https://www.cherokeeforum.com/f2/sec...thingy-128288/

 

Dude, it's keyless entry. I wouldn't have posted the answer twice already in the thread if I didn't know. It's a common question.

 

Unless...

it was...

An...

Infrared keyless entry!

Newsflash: The XJ was produced from 1983 to 2001. **** changes.

 

so the real question is...
which works farther?
Radio frequency one or infrared?

 

RF. The IR unit only works within a couple of meters and you have to shoot it through the glass to hit the sensor. The IR units were discontinued because they're junk and obtrusive, and a lot don't work. (Probably a Chryslerism on that last part though)