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FJR Motorcycle Forums
FJR Parts & Accessories Discussions
AVCC install on '07 wiring questions
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<blockquote data-quote="wfooshee" data-source="post: 1140256" data-attributes="member: 6354"><p>If the brake light fuse blows, how will the AVCC see the brakes go on??? There is NO VOLTAGE to the brake light wires. Other circuits "bleeding" into them is not 12V, and would actually prevent the AVCC from engaging at all. (That was the whole GenII issue with this device in the first place!)</p><p></p><p>The AVCC's purple wire needs 0 volts for the CC to set, and it needs 12V (actually, close to any non-zero voltage) to disengage (or refuse to engage.)</p><p></p><p>That's my issue with getting 12V on the red wire from another circuit. The AVCC installation instructions even call for getting 12V from the always-hot side of the brake light circuit. That's not just a convenient place, it's proof to the controller that the brake light circuit is working in the first place.</p><p></p><p>If the brake light circuit is working then it's true, it makes no difference where you get the 12V from. But if the brake light fuse blows, there are no brake lights, and the the cruise control WILL NOT DISENGAGE when brakes are applied. Why would it???? There's no signal there!!! If you apply them hard enough it will figure out that something's amiss and disengage, but only because its throttle input is not speeding up the bike. (And it WILL give throttle input!)</p><p></p><p>And yes, I did indeed connect my red wire to the hot side of the brake light switch, and my purple wire to the switched side. I have a GenI and it's an easy and reliable connection.</p></blockquote><p></p>
[QUOTE="wfooshee, post: 1140256, member: 6354"] If the brake light fuse blows, how will the AVCC see the brakes go on??? There is NO VOLTAGE to the brake light wires. Other circuits "bleeding" into them is not 12V, and would actually prevent the AVCC from engaging at all. (That was the whole GenII issue with this device in the first place!) The AVCC's purple wire needs 0 volts for the CC to set, and it needs 12V (actually, close to any non-zero voltage) to disengage (or refuse to engage.) That's my issue with getting 12V on the red wire from another circuit. The AVCC installation instructions even call for getting 12V from the always-hot side of the brake light circuit. That's not just a convenient place, it's proof to the controller that the brake light circuit is working in the first place. If the brake light circuit is working then it's true, it makes no difference where you get the 12V from. But if the brake light fuse blows, there are no brake lights, and the the cruise control WILL NOT DISENGAGE when brakes are applied. Why would it???? There's no signal there!!! If you apply them hard enough it will figure out that something's amiss and disengage, but only because its throttle input is not speeding up the bike. (And it WILL give throttle input!) And yes, I did indeed connect my red wire to the hot side of the brake light switch, and my purple wire to the switched side. I have a GenI and it's an easy and reliable connection. [/QUOTE]
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AVCC install on '07 wiring questions
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