Replacing the rear brake light switch
Thread Starter
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Ultimate HDF Member
Joined: Jun 2009
Posts: 6,932
Likes: 4
From: 46th State, USA
I talked to an indy about mounting and bleeding the rear brake on my '09 Ultra Classic with ABS. He said unfortunately the Digital Technican II is a must have when bleeding brakes on an ABS sytem. He also said that trying to bleed an ABS sytem will not get all of the air out of the ABS module and can cause the ABS brake to fail when you need it the most. It can cause the rear brake to lock up or not work at all.
So I guess it's to the dealer and $85 after all.
So I guess it's to the dealer and $85 after all.
Outstanding HDF Member
Joined: Sep 2005
Posts: 2,600
Likes: 7
From: Minnesota
I have bleed mine with ABS many times without the DT - the following explains when you have to have the dealer use the DT.
This is from the '08 Touring SM:
This is from the '08 Touring SM:
If motorcycle is ABS equipped,and either the ABS module or more than one brake line was removed, confirm that brake system is properly connected. To accomplish this, connect motorcycle to DIGITAL TECHNICIAN II (Part No. HD-48650) and perform "ABS Service" procedure in the "Toolbox" menu.
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Ultimate HDF Member
Joined: Jun 2009
Posts: 6,932
Likes: 4
From: 46th State, USA
My 2009 SM states "ABS equipped motorcycles require the use of Digital Technician II HD-(48650) to confirm that the brake lines are properly connected and that air is adequately bled from ABS unit."
"WARNING! Any time the ABS module, either master cylinder, or any line between a master cylinder and the ABS module is disconnected or replaced, Digital Technician II must be used during the brake bleeding procedure. Failure to do so could result in air in the hydraulic brake system, reducing brake efficiency, which could result in death or serious injury."
Last edited by shortride; Jul 12, 2011 at 05:50 PM.
Novice
Joined: Oct 2008
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Add me to the list. Today I installed the rear fender tip run/brake light on my '09 Ultra and when testing it out, I noticed the foot brake pedal did not engage the brake lights. The front lever works fine. After reading several entries here, I guess my switch is now toast. Warranty ran out this week too. Harley life is so much fun!!
Outstanding HDF Member
Joined: May 2006
Posts: 2,581
Likes: 6
From: Deer Park, Texas
I tried and went to 5 different auto parts stores and if your willing to wait a day or two you can save 10.00. Not really worth it. Went to the dealer and it was 21.00 with tax.
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Road Warrior
Joined: Jan 2008
Posts: 1,289
Likes: 23
From: Phoenix, AZ/Canton, OH
My name is cotton hill and I'm a member of the "Harley rear brake light switch Anonymous".
My switch went out on the way to work Wed. I hit the cruse and nothing. Checked it out and found switch in the ON position. Got a new one at the dealer $26.
2008 RG w/46,000 miles.
My switch went out on the way to work Wed. I hit the cruse and nothing. Checked it out and found switch in the ON position. Got a new one at the dealer $26.
2008 RG w/46,000 miles.
