ABS coming on all the time

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brickbox
Posts: 89
Joined: Thu Oct 24, 2019 5:59 am
Location: Rust Belt

Re: ABS coming on all the time

Postby brickbox » Mon Aug 08, 2022 5:03 am

You were right! I wiped all the codes and re-scanned for codes - got 0 errors.
So I decided to take for a drive and scan for codes again when I hit the brakes a few time and the ABS was actuating. Here’s the weird thing though - I still get 0 codes.

I’m stumped now. Any suggestions where I go from here?


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VStar650CL
Posts: 344
Joined: Wed Dec 09, 2020 6:19 pm

Re: ABS coming on all the time

Postby VStar650CL » Mon Aug 08, 2022 5:41 am

I mentioned earlier, a wonky SAS will almost never throw codes. The ABS just sees a glitchy reading which it mistakes for actual yaw, so it taps the actuators and doesn't know anything is wrong. Your problem is still most likely the SAS.

TooMuchControl
Posts: 191
Joined: Tue Apr 28, 2020 4:41 pm
Location: Torontah

Re: ABS coming on all the time

Postby TooMuchControl » Mon Aug 08, 2022 8:27 pm

I purchased a Foxwelltech NT510 Elite bi-direction tool two years ago. It states that it's an all systems scan tool. I'm not one to argue!

I think I paid just over $100 USD for it at Xmas.

Anyone know what a deceleration G-sensor is used for in regards to the ABS?

It's an active input in the wheel speed and ABS menus. Mine was reading 0.1G on a downhill driveway.

It's an amazing device for the money. You see stuff that only a dealer computer can see I would imagine.

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VStar650CL
Posts: 344
Joined: Wed Dec 09, 2020 6:19 pm

Re: ABS coming on all the time

Postby VStar650CL » Mon Aug 08, 2022 9:43 pm

You do want the ABS to know if the car is yawing into a slide with the rear letting go, right? TCS can work without knowing G's, but VDC can't. No G-sensor, no VDC. It does sense gravity, so an incline or decline will show up as a negative or positive acceleration.

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VStar650CL
Posts: 344
Joined: Wed Dec 09, 2020 6:19 pm

Re: ABS coming on all the time

Postby VStar650CL » Mon Aug 08, 2022 9:47 pm

PS - The Bag Brain has 3-axis G's, and the ABS can also access that when necessary. Busy little electrons on every modern vehicle. :wink:

TooMuchControl
Posts: 191
Joined: Tue Apr 28, 2020 4:41 pm
Location: Torontah

Re: ABS coming on all the time

Postby TooMuchControl » Sun Oct 09, 2022 1:09 pm

This is the one that I've been waiting for an update - ever since.
Hope it was figured out!

AS_The_Crow_Flys
Posts: 64
Joined: Wed Jun 15, 2022 1:28 pm

Re: ABS coming on all the time

Postby AS_The_Crow_Flys » Mon Oct 10, 2022 9:06 am

Not sure if its relevant, but did you get an alignment done recently? The steering angle sensor is supposed to be recalibrated after an alignment and if they didn't do that if could be providing incorrect input.


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