XJ XJ8 / XJR ( X308 ) 1997 - 2003

“Brake Fluid Low” false light

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Old Mar 17, 2022 | 03:01 PM
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Default “Brake Fluid Low” false light

Hello everyone,
I ran across a thread addressing this a while back, but can’t for the life of me find it now. I’m getting an intermittent BRAKE FLUID LOW along with BRAKE warning lights. I can’t see a pattern, it just comes and goes, but does seem more frequent now and lasts longer.
As per that thread I found, I tried jumping the sensor plug with a paper clip and that didn’t work. I’ve jiggled the plug while in and that doesn’t seem to affect it either.
Any suggestions here? Do I need to bleed the fluid and replace it, replace the reservoir, etc…?
That bright red light is driving me nuts. Lol.
Many thanks in advance to all.
 
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Old Mar 17, 2022 | 04:12 PM
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The connector itself on the reservoir has a history of giving trouble and is a unique part #
 
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Old Mar 17, 2022 | 04:39 PM
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I have a “parts” car with that connector still in tact, think I could just splice that connector? I didn’t realize that the connector itself was problematic. I was thinking the sensor may be bad.
 
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Old Mar 19, 2022 | 01:50 AM
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Could also be the ABS module. My dad's XJ8 was constantly giving false brake fluid low warnings even with a new sensor and no wire damage and a clean connector. Didn't stop until I replaced the module. Start with the wires and sensor first but check out the ABS module too, especially if your also getting traction/stability fail warning.
 
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Old Mar 19, 2022 | 08:29 AM
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Okay, I switched out the connector only, no help. I guess sensor is next, but not sure how to do that. Can the sensor only be replaced, or do I have to change out the whole reservoir? Anyone have any idea / diagrams or instructions on how to do either?
Thanks to all here!
 
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Old Mar 19, 2022 | 08:30 AM
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ps….no issues with the ABS at all that I’ve seen.
 
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