ABS HElp Please
Thread Starter
Driver School Candidate
Joined: Nov 2007
Posts: 15
Likes: 0
From: NJ
ABS HElp Please
My 99 RX300 is having problems with the ABS. When I go to stop the car The brake pedal pulses. For some strange reason the abs is kicking on. It will do it on the highway, streets, light stop or hard stop. It does not do it all the time but does it very often. The ABS light is off on the dash so there is no code stored. I know the bulb is good because it lights up when I start the car. I am guessing a fault wheel sensor but how can I troubleshoot this better. Is there any know problems with car and the ABS?
Thank You for the help.
Sal
Thank You for the help.
Sal
CL Community Team
Joined: Apr 2001
Posts: 16,557
Likes: 1,385
From: Austin, TX
From your post it seems you have narrowed it down to ABS and not pulsation due to warped rotors.
It may be that your wheels to ground (road) traction is breaking up. Start by checking the air pressure and condition of treads. Also look for gravel/ice/oil on the areas where you get the pulsation.
If the warning light bulb does not remain lit then the computer is saying every thing is AOK. [You have confirmed that from off to ON, it does cycle during self test]
Salim
It may be that your wheels to ground (road) traction is breaking up. Start by checking the air pressure and condition of treads. Also look for gravel/ice/oil on the areas where you get the pulsation.
If the warning light bulb does not remain lit then the computer is saying every thing is AOK. [You have confirmed that from off to ON, it does cycle during self test]
Salim
Thread Starter
Driver School Candidate
Joined: Nov 2007
Posts: 15
Likes: 0
From: NJ
I know for sure it is the abs not warped rotors. Tires are all fairly brand new air pressure is good and even. Very strange. Yes the computer does it's self test and then the light goes off. I have heard of cracked abs rings. I have to pull the tires for that but I did look at the wheel sensors and they all look ok. No physical damage. This is a strange on. Another odd thing is when it happens it only happens for a brief period not all the way through the stop. The ground is clean as well.
Lexus Test Driver
Joined: Jul 2001
Posts: 959
Likes: 2
From: New Jersey
I know for sure it is the abs not warped rotors. Tires are all fairly brand new air pressure is good and even. Very strange. Yes the computer does it's self test and then the light goes off. I have heard of cracked abs rings. I have to pull the tires for that but I did look at the wheel sensors and they all look ok. No physical damage. This is a strange on. Another odd thing is when it happens it only happens for a brief period not all the way through the stop. The ground is clean as well.
Lexus Test Driver
Joined: Jul 2001
Posts: 959
Likes: 2
From: New Jersey
Moderator has deleted my posts in the past with the link to the download and has asked that I do not post it again due to possible copyright issues. However if you search on the word "download" here and over on Lexus Owners Club you should be able to come up with it on your own.
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