ABS Light (Intermittent) - No Engine Codes
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Cruiser
Joined: May 2008
Posts: 246
Likes: 3
From: New Jersey
ABS Light (Intermittent) - No Engine Codes
I have a 2011 Street Glide with a power pack from that year (103, security, and ABS from the factory).
At the beginning of the riding season, my ABS has been coming on intermittently and not generating any engine codes. I noticed it will come on under hard acceleration. And it is very intermittent.
So far I have:
Over the winter, I plan to install new rear wheel bearings, new rear sensor and a new brake bleed, but I am hoping to avoid that if possible.
Any guidance is greatly appreciated.
At the beginning of the riding season, my ABS has been coming on intermittently and not generating any engine codes. I noticed it will come on under hard acceleration. And it is very intermittent.
So far I have:
- Bleed the front and rear brakes (and ABS unit)
- Replaced the front ABS wheel sensor
- Replaced the front wheel bearings
Over the winter, I plan to install new rear wheel bearings, new rear sensor and a new brake bleed, but I am hoping to avoid that if possible.
Any guidance is greatly appreciated.
Seasoned HDF Member
Joined: Feb 2008
Posts: 22,999
Likes: 11,439
Have you gotten on some grass and tested the ABS see if it is working at all. Test front and rear on its own.
When was the AS last flushed and Cycled correctly? if it was not cycled the flush does not count.
If it has not been flushed and cycled have it done Now before it is to late.
When was the AS last flushed and Cycled correctly? if it was not cycled the flush does not count.
If it has not been flushed and cycled have it done Now before it is to late.
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,143
Likes: 11,211
From: San Diego, CA
I have a 2011 Street Glide with a power pack from that year (103, security, and ABS from the factory).
At the beginning of the riding season, my ABS has been coming on intermittently and not generating any engine codes. I noticed it will come on under hard acceleration. And it is very intermittent.
So far I have:
Over the winter, I plan to install new rear wheel bearings, new rear sensor and a new brake bleed, but I am hoping to avoid that if possible.
Any guidance is greatly appreciated.
At the beginning of the riding season, my ABS has been coming on intermittently and not generating any engine codes. I noticed it will come on under hard acceleration. And it is very intermittent.
So far I have:
- Bleed the front and rear brakes (and ABS unit)
- Replaced the front ABS wheel sensor
- Replaced the front wheel bearings
Over the winter, I plan to install new rear wheel bearings, new rear sensor and a new brake bleed, but I am hoping to avoid that if possible.
Any guidance is greatly appreciated.
Do you have OEM size tires and wheels...?
During the hard accleration, are your rear tires spinning at all...?
Just a WAG, but if your wheels and/or tires are slightly oversized, when conditions exist that may cause the tire to grow in diameter (like heavy acceleration) the signals sent to the ABS confuse it temporarily...
Have you done as smitty901 suggests and tested the ABS to see if it is working when it should...?
While a problem doesn't always set a DTC (diagnostic trouble code), generally speaking, if the ABS light flashes, a DTC should be set. It seems strange to me that you could be getting numerous ABS light activations, and yet none of them have set a DTC. Even if the cause of the code should quickly resolve by itself, there should be a historic code for 50 cycles before they self-clear.
I am not an ABS expert by any measure, and I don't know if there is an ABS condition that happens, but rarely sets a DTC...
Hopefully someone wise in the ways of the Harley ABS can jump in and give us a clue...
Last edited by hattitude; Aug 29, 2023 at 03:09 PM.
Cruiser
Joined: May 2023
Posts: 149
Likes: 80
From: Tulsa, Oklahoma
Do you run a tuner or anything connected to the diag port?
I notice the Dynojet PV4 will at times cause intermittent ABS warning when I'm running live gauges.
I notice the Dynojet PV4 will at times cause intermittent ABS warning when I'm running live gauges.
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Seasoned HDF Member
Joined: Apr 2011
Posts: 6,185
Likes: 2,134
From: W. Texas
I have a 2011 Street Glide with a power pack from that year (103, security, and ABS from the factory).
At the beginning of the riding season, my ABS has been coming on intermittently and not generating any engine codes. I noticed it will come on under hard acceleration. And it is very intermit
Any guidance is greatly appreciated.
At the beginning of the riding season, my ABS has been coming on intermittently and not generating any engine codes. I noticed it will come on under hard acceleration. And it is very intermit
Any guidance is greatly appreciated.
With no codes and hard accell makes me think the front wheel speed sensor and the rear wheel speed sensor might not be reading close enough to the same for the system to think everything is good.
Not sure on bikes but on autos /trucks a 4% difference front to rear will set a code though Not all the time. Intermittent like yours
WP
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Seasoned HDF Member
Joined: Apr 2011
Posts: 6,185
Likes: 2,134
From: W. Texas
Ok I'll put this way If you bike or auto were in my shop I'd be hooking up a scanner that could read wheel speed in real time. And record it if possible. .
Other than that it will be a guessing game Sir
WP