ABS Light blinking?

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BobQ

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Hey, I did a hard stop, and now my ABS light is blinking, what should I check? can I do a diagnostics? and if so how? I use this bike as my daily driver and don't have time to hit the dealer any time soon.

Thanks Bob

 
Well, I'll post my own reply. It is out now, it must have been bumpy roads? I will keep am eye on it.

 
It resets when you turn the ignition off. Mine went through some of the 'blinking' but went away and was never a problem.

 
Here we go again....my last good deed of the day.....I'm drunk. Check your rear brake pivot linkage for binding. Take it apart and lube it...then go for a ride.

 
I am not sure I know what you mean buy rear brake pivot linkage? Is this the linkage at the rear of the brake pedal?

Thanks for any clarification!

Bob

 
I am not sure I know what you mean buy rear brake pivot linkage? Is this the linkage at the rear of the brake pedal?
Thanks for any clarification!

Bob
Hi Bob. any intermitant problem will cause the ABS light to blink. When the light is blinking the ABS system is deactivated and your brakes will work like a non ABS bike, so don't worry. If it becomes more consistant you can start by checking your brake lights. The ABS control unit uses the brake light circuit to activate the ABS system so if it only starts blinking after you apply the brakes it is probably that circuit. If is comes on while riding it is most likely a dirty wheel speed sensor. Keep an eye on when it happens and that will help diagnose the problem.

Mike Whalen

Bosch Master Tech

Motoring Specialists Inc.

Vacaville CA

 
Ok....rear brake. Pedal. Check it.....so that it don't make contact. Make sure it's up all the way. If it's kinda stiff....take it off....lube it like you'd lube twn's ass like yer ready to ram him. Then ride it and see what happens.

 
I am not sure I know what you mean buy rear brake pivot linkage? Is this the linkage at the rear of the brake pedal?
Thanks for any clarification!

Bob
Hi Bob. any intermitant problem will cause the ABS light to blink. When the light is blinking the ABS system is deactivated...

Mike Whalen

Bosch Master Tech

Motoring Specialists Inc.

Vacaville CA
Wrong. GENERALLY - The blinking light only means that the wheels have gotten out of sync. Maybe you spun the rear, or hit a bump. The ABS still works. This horse has been beat to death - search blinking lights or something like that. There are several threads here. Also read the ABS supplement in the manual. Next time it blinks try locking up the rear on a deserted patch of road, maybe with a little gravel or some tar snakes. You will feel the ABS pulse. I have never heard of an ABS failure.

 
I am not sure I know what you mean buy rear brake pivot linkage? Is this the linkage at the rear of the brake pedal?
Thanks for any clarification!

Bob
Hi Bob. any intermitant problem will cause the ABS light to blink. When the light is blinking the ABS system is deactivated...

Mike Whalen

Bosch Master Tech

Motoring Specialists Inc.

Vacaville CA
The blinking light Wrong. GENERALLY - only means that the wheels have gotten out of sync. Maybe you spun the rear, or hit a bump. The ABS still works. This horse has been beat to death - search blinking lights or something like that. There are several threads here. Also read the ABS supplement in the manual. Next time it blinks try locking up the rear on a deserted patch of road, maybe with a little gravel or some tar snakes. You will feel the ABS pulse. I have never heard of an ABS failure.
Hey Sherman think about it a little. "The blinking light Wrong. GENERALLY - only means that the wheels have gotten out of sync" If that were true the light would blink every time I back into a parking space since the front wheel travels a larger circle than the rear. Come to think of it every time your turn the bars the wheels would be traveling a different radius circle. I admit I could be wrong about how the ABS system works on your bike and I am more familiar with ABS systems on Mercedes and BMW. I do know the last burn out I did and last wheelie, did not cause my ABS light to blink.

Have a nice Ride.

 
I have had this happen twice before, both times were tire changes. The sensors were not aligned propperly once (rear)and had come unplugged the second time(front). check for a tight connection on both front and rear.

 
I did a search as follows: +blinking +lightCheck out this: Clicky

or this Clicky2

Best regards
Thanks Sherman, I see from the other posts that Yamaha must do things differently than Bosch and other automotive systems. On cars the ABS unit will not activate or test the wheel speed sensors until the vehicle reaches 15 mph and the brake light circuit is activated. We have cars with codes set for front wheel speed sensors defective after a Dyno run for a smog test. Looks like I need to get some factory manuals from Yamaha. It is hard to tell from the posts on this forum what the facts are. I did notice that several posts contradicted eachother about the ABS being deactivated with the light on. Important part is a blinking light is no big deal for the rider and going to be hard to diagnose without trial and error testing.

Thanks again for the info.

Mike

 
The ABS stores malfunction codes in the ABS ECU memory for troubleshooting.

On Gen II bikes the ABS test coupler is located at the battery, the end facing the front of the bike. The test coupler will have a protective cap over the connector. To activate the ABS pump the black and sky blue wire get jumped together.

As long as the ABS light is flashing the ABS system remains operational. If the ABS light is steady the ABS portion of the brake system is disabled. The FSM notes that when the FJR is continuously ridden on extremely uneven roads the ABS light may come on. The ABS system will also flash if brake lights are out or the lever/peddle is out of adjustment.

Accessing and troubleshooting the ABS system fills ~145 pages in the FSM. Time to buy THE BOOK.

 
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