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FJR Motorcycle Forums
Technical & Mechanical Problems
ABS Light Flashing
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<blockquote data-quote="ionbeam" data-source="post: 305897" data-attributes="member: 277"><p>Adding <em>just</em> LED brake lights shouldn't cause a problem with the ABS ECU. Adding any kind of tail light flasher <strong>will</strong> cause a problem.</p><p></p><p>Just plain straight LEDs in a one for one swap with brake lights should not cause any kind of problem as long as the install was done correctly. There are two types of LED tail/brake light assemblies available. For an ABS equipped bike the LED assemblies should have two signal wires, one for tail lights and a second for brake lights. Some LEDs will be off until the brake is activated, then all the LEDs turn on. The other type of tail/brake LED assemblies will have all the LEDs on, then some or all will get brighter when the brake is activated. This type will probably cause a problem with the ABS ECU. Stock tail light bulbs have two filaments, one low current filament for tail lights and a separate high current filament for bright brake lights. LED assemblies must mimic this setup. AxeMan, any input here? :lol: </p><p></p><p>On Gen I ABS, the yellow brake wire goes to the tail lights as well as the ABS ECU. If you cut the brake wire and spliced in a flasher the ABS ECU will show a fault. Same is true for Gen II, I just don't know the wire color for sure.</p></blockquote><p></p>
[QUOTE="ionbeam, post: 305897, member: 277"] Adding [I]just[/I] LED brake lights shouldn't cause a problem with the ABS ECU. Adding any kind of tail light flasher [B]will[/B] cause a problem. Just plain straight LEDs in a one for one swap with brake lights should not cause any kind of problem as long as the install was done correctly. There are two types of LED tail/brake light assemblies available. For an ABS equipped bike the LED assemblies should have two signal wires, one for tail lights and a second for brake lights. Some LEDs will be off until the brake is activated, then all the LEDs turn on. The other type of tail/brake LED assemblies will have all the LEDs on, then some or all will get brighter when the brake is activated. This type will probably cause a problem with the ABS ECU. Stock tail light bulbs have two filaments, one low current filament for tail lights and a separate high current filament for bright brake lights. LED assemblies must mimic this setup. AxeMan, any input here? :lol: On Gen I ABS, the yellow brake wire goes to the tail lights as well as the ABS ECU. If you cut the brake wire and spliced in a flasher the ABS ECU will show a fault. Same is true for Gen II, I just don't know the wire color for sure. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
ABS Light Flashing
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