Posted: Wed Aug 01, 2012 4:30 pm Post subject: Low Brake Fluid message
Got an interesting one here that I hope someone can shed some light on...
For the past couple of months, I've been getting a constant "Low Brake Fluid" indicator in the message center in my relatively stock '04 Impala SS w/ 47k miles. In addition to this message, I've also got a "Trac Off" light and a "Brake" light illuminated in the cluster. I'm assuming that if the car is low on brake fluid, it automatically disables the Traction Control and illuminates the "BRAKE" light.
Obviously, the first thing that I did was check the brake fluid and determined that it was at the proper level. I have not experienced any loss of braking power in the meantime (as indicated by my perpetually warpped front rotors ).
The next obvious thing to check was the brake fluid sensor in the master cylinder resevoir. Because it was cheap (11.99 at my local AutoZone), I replaced it. Then unhooked the battery to reset the system. Still, I have the lights/message.
After checking the wiring to the sensor as far back as I could, I determined that there were no breaks in the wires. However, when I unplugged the wire to the sensor completely and started the car up, all the lights/messages went away.
I should also note that occastionally when I drive the car in wet conditions, I have been getting a "Trac Off" and "(ABS)" light coming on. (but no "Low Brake Fluid" message.) I suspect this may be related to an ABS sensor going south or a connection thats getting wet.
Is this a sign of an ABS sensor on the fritz or do I have more going on here than the obvious?
Thanks in advance for any help!
_________________ 2004 Impala SS- Salvaged Title mod, Indy SS Grille, SilverStar Ultras, Mobil 1, TNR800, GMPP Exhaust, iSimple, White Guage Faces
1996 Impala SS- Black, Jon Moss Signature, Mobil 1, PFC brake pads, 40K miles
1979 Impala- Light Yellow Coupe, 355ci, Torque Thrust II's, Headers/FlowMasters/Dual Exhaust, 80k miles
have it scanned with a high end scan tool or a dealer with a tech II, it will tell you exactly which wheel is throwing the codes. I know when the speed sensor or ABS sensor goes, it throws the ABS / Trac / Brake light. Could also be corroded ABS/speed sensor connection.
Sounds like your going through the same issues I was and am having with my SS. Low brake fluid error, in my experience, has been with a bad master brake cylinder. Half the cylinder wasn't working is what I was told. The driving through water and getting the ABS and TRAC control lights,again my experience, is the sensors are bad.
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