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FJR Parts & Accessories Discussions
AVCC install on '07 wiring questions
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<blockquote data-quote="mcatrophy" data-source="post: 1139866" data-attributes="member: 3187"><p>You are saying that without the "signal" 12V being present, the voltage on the brake circuit can't rise sufficiently to disengage the CC. This might be true, but remember that CC (and other circuits) look on the brake line and bleed a little current onto that wire, sufficiently to raise the voltage. Working from memory, (I'm somewhere in Spain using my mobile, no sensible access to the wiring diagram) on a GenII, the brake light is switched by a relay that is energised with ignition on, and de-energised when a brake is activated. If the "signal" fuse fails, the relay will disengage, the circuit would presumably back-feed the rest of the "signal" circuit, which might hold the lamp wire at 0V - except on the AS/AE, where the brake lamp is fed through a diode.</p><p>Needs a careful look at the wiring diagram which I can't do at the moment.</p><p></p><p>But I now agree that to be ultimately safe as far as CC disengagement is concerned, that's the feed to use, always remembering that by tapping into it, you are increasing the risk of blowing that fuse.</p><p></p><p>A final thought, if the brake wire shorts to 0V, this <strong><em>would</em></strong> prevent the CC from disengaging. I think I've got to finally agree with wfooshee. But I'm not changing mine now <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p></blockquote><p></p>
[QUOTE="mcatrophy, post: 1139866, member: 3187"] You are saying that without the "signal" 12V being present, the voltage on the brake circuit can't rise sufficiently to disengage the CC. This might be true, but remember that CC (and other circuits) look on the brake line and bleed a little current onto that wire, sufficiently to raise the voltage. Working from memory, (I'm somewhere in Spain using my mobile, no sensible access to the wiring diagram) on a GenII, the brake light is switched by a relay that is energised with ignition on, and de-energised when a brake is activated. If the "signal" fuse fails, the relay will disengage, the circuit would presumably back-feed the rest of the "signal" circuit, which might hold the lamp wire at 0V - except on the AS/AE, where the brake lamp is fed through a diode. Needs a careful look at the wiring diagram which I can't do at the moment. But I now agree that to be ultimately safe as far as CC disengagement is concerned, that's the feed to use, always remembering that by tapping into it, you are increasing the risk of blowing that fuse. A final thought, if the brake wire shorts to 0V, this [B][I]would[/I][/B] prevent the CC from disengaging. I think I've got to finally agree with wfooshee. But I'm not changing mine now ;) [/QUOTE]
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AVCC install on '07 wiring questions
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