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FJR Motorcycle Forums
FJR Parts & Accessories Discussions
cruise control
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<blockquote data-quote="wfooshee" data-source="post: 1268748" data-attributes="member: 6354"><p>You want to be sure you have a signal from the tach. No speed input = no workie-workie.</p><p></p><p>You want to be sure the purple wire is ZERO volts when the brakes are off. Not 4, or 2, or even 1. ZERO.</p><p></p><p>Disconnect the 10-pin connector at the servo and check the signals on the wires:</p><p></p><p>Black: ground</p><p></p><p>Red: 12V when the bike is on. Should be getting this from the brake light circuit on the bike.</p><p></p><p>Brown: 12V when the unit is on, 0 when it's off</p><p></p><p>Purple: 12V with the brakes applied, 0 when they're not. (Your 2008 may need a relay circuit to ensure this. If the Purple wire does not go 0, or no more than a fraction of a volt, the cruise won't set.)</p><p></p><p>Green: 12V with the Set/Coast button pressed (with unit turned on)</p><p></p><p>Yellow: 12V with the Accel/Resume button pressed (with unit turned on)</p><p></p><p>Blue: Increasing AC voltage with engine speed</p><p></p><p>Gray: not used.</p></blockquote><p></p>
[QUOTE="wfooshee, post: 1268748, member: 6354"] You want to be sure you have a signal from the tach. No speed input = no workie-workie. You want to be sure the purple wire is ZERO volts when the brakes are off. Not 4, or 2, or even 1. ZERO. Disconnect the 10-pin connector at the servo and check the signals on the wires: Black: ground Red: 12V when the bike is on. Should be getting this from the brake light circuit on the bike. Brown: 12V when the unit is on, 0 when it's off Purple: 12V with the brakes applied, 0 when they're not. (Your 2008 may need a relay circuit to ensure this. If the Purple wire does not go 0, or no more than a fraction of a volt, the cruise won't set.) Green: 12V with the Set/Coast button pressed (with unit turned on) Yellow: 12V with the Accel/Resume button pressed (with unit turned on) Blue: Increasing AC voltage with engine speed Gray: not used. [/QUOTE]
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