I recently got a low brake fluid warning on my onboard screen of a 2003 X-Type 3.0L. just bled all brakes and topped off my brake fluid~ low fluid warning still there. i unplugged the fluid level sensor, and the warning is still there. Do I need to replace the instrument gauge? Anything will help~~ thank you!!!!

Check the sensor.
Unplugging will i think still give you low level warning because there is no level to read...

is that right? i've read different opinions in regards to that, but want to check it now~~ what is the easiest way to check it? without buying a new one~~

Use a multimeter to check power on the sensor, no power when level "full" , power when low.
When your e brake switch is (under center console) broken you could also get the warning light.
Since you bled all your brakes i would recheck the job you did first.

wouldn't it just be easier to get a paper clip and jump the leads and see if the light goes out?

now that sounds like something i could do~ can you explain to me in detail how i would do this please?

Sure... get a paper clip (metal paper clip of course).

Disconnect the sensor

With the paper clip touch the connector ends and have a buddy see if the light goes out.

If it does then you have a sensor problem. That's how I test them at my shop... no need to get big guns out (multimeter).

Best of luck! and let us know the happy ending!

WAS there a happy ending?

You can plug a good spade fuse into the plug, which is a better way to jump over because it won’t short out and stays in place. In my case it didn’t tell me anything because it’s just 1 of Jaguars gremlins running around switching warning lights on periodically for no reason whatsoever. It comes on after about 20 minutes goes out comes on again maybe.