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#691080 - 04/20/11 09:50 PM 2000 R1100RT ABS Fault, New Battery
twowheelsonly Offline
Member

Registered: 11/16/09
Posts: 157
Loc: Atlanta GA 30019
Hi

I experienced a problem with my ABS flashing, the lights flash sequentially from top to bottom, I have tried to reset the system by shorting the middle blue connector middle pin to the battery ground and holding the abs switch down for 8 to 10 seconds which used to cause the ABS lights to flash together at the same time, when the abs system worked I used to hear the brakes engage when I first rode off and the light was off.. I thought it was a battery problem and bought a new Oddessy battery PC680 and installed it. I tries to reset the ABS but it will not stop flashing sequentially!!

I tried to search this subject but came up with nothing so I appreciate any input you have

Thanks
Stewart
_________________________
Stewart Shearer
678-725-9566
2000 R1100RT SE
2004 Yamaha Venture sold
1999 Kawasaki Nomad sold
1974 H2 750 Kawasaki Triple sold
1970 Triumph 500 Tiger sold

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#691091 - 04/20/11 11:12 PM Re: 2000 R1100RT ABS Fault, New Battery [Re: twowheelsonly]
Mark G Offline
Newer Member

Registered: 08/25/09
Posts: 39
I sent you a PM. Had this issue and it tuned out to be low brake fluid in the ABS.

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#691102 - 04/21/11 12:12 AM Re: 2000 R1100RT ABS Fault, New Battery [Re: Mark G]
Michaelr11 Offline
Member

Registered: 09/25/03
Posts: 419
Loc: Trinity, NC
Originally Posted By: Mark G
Had this issue and it tuned out to be low brake fluid in the ABS.

According to the original poster's sig line, he has a 2000 R1100RT which has ABS2, not the later 1150 IABS. There wouldn't be a separate fluid circuit in the ABS Unit.
Check the code of the fault to see what is actually causing the fault. You have to check the fault code when the flashing ABS fault is there; it will be cleared when you perform the reset. Once you know the fault code, you should be able to clear the fault from the ABS, but depending on the problem it might just happen again.
_________________________
Michael Stock, Trinity NC
01 R1100RT, R60/6, R100

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#691121 - 04/21/11 06:26 AM Re: 2000 R1100RT ABS Fault, New Battery [Re: twowheelsonly]
dirtrider Offline
The Oracle
Member

Registered: 06/05/10
Posts: 7770
Loc: Ohio
Morning Stewart

One thing that might help to diagnose your problem is WHEN do your lights go from flashing together to flashing alternately?
In most cases that will indicate when you problem occurs. If after ride-off, then look at things like wheel sensors or broken sensor wire.
If before ride-off then something like low battery voltage or something wrong with your ABS controller like a stuck piston or power relay problem.

In any case you should be able to grab the stored code(s) ONCE the problem re-occurs.


-(Reading ABS 2 controller stored fault codes)-
“Make sure battery voltage is at or above 12 volts”

1)- First,, place analog voltmeter between pin #2 of ABS diagnostic connector & ground.. (don’t use a digital voltmeter as most won’t respond quick enough to show stored codes correctly).. Another way is to use a LED & resistor in place of the voltmeter..
2)- Then,, turn ignition S/W on..
3)- Voltmeter should indicate (close to) a steady 11volts,, (IF) no fault codes are stored..
4)- If it has stored fault code(s) in the ABS controller it should show as voltage swings or drops.. To find ABS code or codes just count the voltmeter needle swings towards zero volts..


-(Here are the ABS 2 fault codes)-

1)- front pressure modulator..
2)- rear pressure modulator..
3)- front sensor..
4)- rear sensor..
5)- battery voltage low..
6)- ABS relay..
7)- ABS control unit..
8)- sensor gap front or rear..
_________________________
D.R. ___
Sent from my rotory dial wall phone!

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#691133 - 04/21/11 07:32 AM Re: 2000 R1100RT ABS Fault, New Battery [Re: twowheelsonly]
Paul De Offline
Member

Registered: 10/22/00
Posts: 770
Loc: Milwaukee Wisconsin, USA
This happened on my '99 R1100RT when it was about 1.5 years old. It was an intermittent problem at first and not associated with counting to 5 before hitting the start button to allow the ABS to fully come on line. I replaced the battery on the advice of local mechanic with no result, and then the problem became a 100% fault on start up. It turned out to be a faulty front wheel ABS sensor. Once that was identified and replaced there have been no more ABS problems.

Down the road a bunch of years I replaced OEM battery going to the Universal AGM battery from Staab Battery which upped the amp hours from 19 to 22. Now I never ever have the irritating ABS fault on start up even if I hit the start button as soon as I turn the ignition key on. This battery is much less expensive than Oddessy ($53 shipped to my door) and I am going into year 3 on it with no issues. I am not saying that the Oddessy is not a great battery…..I just don’t personally value the premium required to having a mil-spec battery. I don’t and will not use my RT battery in the extreme environments that a mil-spec battery must perform in. Maybe if I road a GS off road, or lived in Death Valley that would be a different story!!! But I appreciate the peace of mind for those who sleep better at night knowing their battery is designed for such rugged duty.
_________________________
If the good old days were so damn good, why did we bother to invent modern times?

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#691137 - 04/21/11 07:54 AM Re: 2000 R1100RT ABS Fault, New Battery [Re: Paul De]
dirtrider Offline
The Oracle
Member

Registered: 06/05/10
Posts: 7770
Loc: Ohio
Morning Paul

“became a 100% fault on start up”

Any chance you remember that incorrectly?

A faulty wheel sensor usually shows up at ride-off not start-up.
_________________________
D.R. ___
Sent from my rotory dial wall phone!

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#691342 - 04/21/11 09:05 PM Re: 2000 R1100RT ABS Fault, New Battery [Re: dirtrider]
Harrison Offline
Just Joined

Registered: 02/07/07
Posts: 5
Loc: Mililani, HI
I've got a 2000 R1100RTP with the alternating ABS flash that happens as soon as I turn on the ignition and never goes away, even if I wait the requisite 5 seconds before starting. I thought it might be the fluid level (that was the case with my KLT) but it isn't. Where is this ABS diagnostic plug? My ABS has both front and rear circuits. The weather here in Hawaii is not extreme, but it IS extremely boring.

Harrison

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#691393 - 04/22/11 06:24 AM Re: 2000 R1100RT ABS Fault, New Battery [Re: Harrison]
twowheelsonly Offline
Member

Registered: 11/16/09
Posts: 157
Loc: Atlanta GA 30019
There is a blue connector behind the fuse box, its a few inches behind the fuse box towards the rear fender, it is a 3 pin plug, you can reset the ABS system by using a wire inserted in the middle terminal of the 3 pin plug, you need to jumper from the connector and run it to a good ground, preferably the negative - battery post on the left side of the bike.

Turn the key on and hold the ABS button on for 8 to 10 seconds, the abs light will stop flashing as soon as you hold the ABS button down, Turn the key off after 8 to 10 seconds, remove the jumper wire to the 3 pin connector. Turn the key on and the ABS lights will flash at the same time if the ABS system is reset.
_________________________
Stewart Shearer
678-725-9566
2000 R1100RT SE
2004 Yamaha Venture sold
1999 Kawasaki Nomad sold
1974 H2 750 Kawasaki Triple sold
1970 Triumph 500 Tiger sold

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#691879 - 04/24/11 01:52 AM Re: 2000 R1100RT ABS Fault, New Battery [Re: twowheelsonly]
Harrison Offline
Just Joined

Registered: 02/07/07
Posts: 5
Loc: Mililani, HI
I tried resetting the ABS but the lights stayed the same ie. alternate flashing, although the brakes seem to work OK. What else could it be?

Harrison

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#692271 - 04/25/11 01:45 PM Re: 2000 R1100RT ABS Fault, New Battery [Re: Harrison]
dan cata Offline
Member

Registered: 06/13/09
Posts: 977
Loc: Romania
Hold the ABS button for 1 min, not 10 sec wink It will work.

Dan.
_________________________
Stuff I make for BMW bikes

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