Rear Brake Failure.
Road Master
Joined: Nov 2010
Posts: 940
Likes: 3
If it's the brake switch covered by the recall, then yep it'll cause issues with the cruise (if ECM detects signal from brake switch, it'll turn off your cruise) and it'll probably cause you to lose your rear brakes when it goes. Talked to the service guys at the dealer, they said that it doesn't necessarily start to leak before it goes, but when it goes you WILL lose your rear brakes.
Dealer replaced, bled brakes (ABS), & haven't had a problem with brakes or cruise since.
Dealer replaced, bled brakes (ABS), & haven't had a problem with brakes or cruise since.
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Tourer
Joined: May 2010
Posts: 274
Likes: 1
From: Lawrence, KS
If it's the brake switch covered by the recall, then yep it'll cause issues with the cruise (if ECM detects signal from brake switch, it'll turn off your cruise) and it'll probably cause you to lose your rear brakes when it goes. Talked to the service guys at the dealer, they said that it doesn't necessarily start to leak before it goes, but when it goes you WILL lose your rear brakes.
Dealer replaced, bled brakes (ABS), & haven't had a problem with brakes or cruise since.
Dealer replaced, bled brakes (ABS), & haven't had a problem with brakes or cruise since.
Cruiser
Joined: Jul 2007
Posts: 125
Likes: 0
From: IL
I am going subscribe to this thread because I cannot understand how a failed switch (electrical) can cause a rear brake failure (mechanical). I can understand how it can affect the cruise control and abs system, but not the mechanical parts and a complete loss of the rear brake pressure. I guess I am going to learn something.
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Tourer
Joined: May 2010
Posts: 274
Likes: 1
From: Lawrence, KS
I am going subscribe to this thread because I cannot understand how a failed switch (electrical) can cause a rear brake failure (mechanical). I can understand how it can affect the cruise control and abs system, but not the mechanical parts and a complete loss of the rear brake pressure. I guess I am going to learn something.
Road Master
Joined: Nov 2010
Posts: 940
Likes: 3
The switch is a pressure switch that is in the brake line.
The switch is #4 in the diagram and is in the brake line on the right side of the bike. Because it is in the brake line, failure can result in the brake fluid leaking out.
The switch is #4 in the diagram and is in the brake line on the right side of the bike. Because it is in the brake line, failure can result in the brake fluid leaking out.
Last edited by Mike_M; Aug 13, 2012 at 04:36 PM.
Ultimate HDF Member
Joined: Aug 2007
Posts: 5,331
Likes: 56
From: north of Daytona
I am going subscribe to this thread because I cannot understand how a failed switch (electrical) can cause a rear brake failure (mechanical). I can understand how it can affect the cruise control and abs system, but not the mechanical parts and a complete loss of the rear brake pressure. I guess I am going to learn something.
The switch MELTS. Allowing BRAKE fluid to go past the two wires....which have MELTED.
When the fluid goes past the two wires, it does not compress the BRAKE discs....therefore the BRAKES do not engage.
Cruiser
Joined: Jul 2007
Posts: 125
Likes: 0
From: IL
if the system is leaking, then I would understand the system failing. On my 2007 Dyna, non abs, the brake light switch is screwed into a fitting in the brake line, right off the rear master cylinder. If the switch fails, there is still pressure to the rear caliper, just no stop light (unless, if it fails it will keep the brake light on).Just seems a little crazy that if a switch fails in the brake system the whole rear brake system can fail. I know that if the abs fails on my car, the brake system will work, just not the abs. I am learning, but just don"t understand the logic in this. If, when the switch overheats and fails and then allows fluid to escape, then I can see the issues. I thought the OP said he did not see any fluid leaking out.
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Road Master
Joined: Nov 2010
Posts: 940
Likes: 3
if the system is leaking, then I would understand the system failing. On my 2007 Dyna, non abs, the brake light switch is screwed into a fitting in the brake line, right off the rear master cylinder. If the switch fails, there is still pressure to the rear caliper, just no stop light (unless, if it fails it will keep the brake light on).Just seems a little crazy that if a switch fails in the brake system the whole rear brake system can fail. I know that if the abs fails on my car, the brake system will work, just not the abs. I am learning, but just don"t understand the logic in this. If, when the switch overheats and fails and then allows fluid to escape, then I can see the issues. I thought the OP said he did not see any fluid leaking out.
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Tourer
Joined: May 2010
Posts: 274
Likes: 1
From: Lawrence, KS
Mike M, I hope you are right. Still no word from the stealer.... I mean dealer. Keeping fingers crossed.
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