I've been tracking for the past year or so and only recently began to have a problem of my ABS cutting off.

My car is stock with a more aggressive alignment setting and cooling upgrade including a simple brake duct system.

The ABS light stays off during street driving but after one out lap to warm up the car, the ABS light comes on and stays on. My ABS is then disabled and i've locked up my rear wheels on some rough tarmac when doing hard braking on entry to a corner.

Once I turn the car off, cool down the car, the ABS light disappears again. When I exit the pits for a warm up lap, at the end of the warm up lap, the ABS light will come on again.

I've been tracking the past 2 trackdays without it but would really want to get the ABS back as it has saved my butt a couple of times under committed braking.

Anyone with ideas on what could be the issue here?

 

Pull the code.

 

Hi mike,

thanks for the tip. I'm not familiar with the electronics on the car so my question is now that i'm back on the street, the ABS light no longer appears. Is there a memory of some sort that would have logged that ABS failure?

 

Yes, there should be a DTC set in the ECU that can be read by an OBDII codereader. Even though the light goes off, the code should still be in memory. A Honda dealer should be able to read it, but they are likely to charge you money to do so. Many autopart chain stores will read the code for you for free.

I'm just guessing, but I suspect the code will point to one of your wheel speed sensors.

 

thank you mike.

I know just the person who can chk it out. my cadence braking is nothing fantastic so i will still have to rely on the trusty abs to cover part of my shortcomings in technique as a driver.

 

Do you use different wheels/tires on the street vs. track? If so, are the tires different sizes? Maybe the difference in wheel/tire speeds (caused by different tire sizes) are confusing the ABS computer.

 

this is a very good point!

 

on my race car I have a sensor ring that has a slight chip in it...at higher speeds if there is any dirt or grease on it the abs light will come on and the abs will fail...

bottom line is you need to figure out the code and go from there..

 

yes check sensors , wheel speed sensors/abs ring . Thats most likely your problem.

 

awesome guys...thanks !