brake warning light and beeping alarm going off
#1
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brake warning light and beeping alarm going off
99 rx300 awd my brake warning light on dash and alarm going off checked brake fluid level and its full what is causing this this alarm and light blinking
#2
Moderator
Please explain "alarm going off"
And when does it happen and when does it stop?
Salim
And when does it happen and when does it stop?
Salim
#3
Let me take a wild guess. Sometimes the brake fluid level sensor can fail, falsely indicating a low brake fluid level. As I recall, the test for this is to unplug the sensor at the top of the brake fluid reservoir and see if the problem goes away.
#4
Lexus Test Driver
If this is like what has happened to me a couple of times, a new brake reservoir cap (about $100) solves the problem. There is a thread about a similar-sounding situation. Good luck!
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hey trhs75 what have you found that goes bad on this cap i will double check this tomorrow at first inspection i found nothing obvious like broken or corroded wiring
#6
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With an assistant take the cap off and slide the ring up and down and monitor the warning light.
Salim
#7
Lexus Test Driver
I'll never know what went wrong with the caps. The caps, floats, and wiring looked brand new both times. The service rep at the dealer never could diagnose the problem. He said he wouldn't have believed me if he hadn't seen it with his own eyes. Apparently there is some kind of computer chip in the cap itself which went bad.
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#8
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well forum i had the luxury of using the cap off a friend of mine 01 rx and that solve my problem i guess i will spend the 80.00 for a new one on ebay went to the junk yard and did not find 1 rx out there
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Emilio253
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