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FJR Motorcycle Forums
Technical & Mechanical Problems
No brake lights and on the road. KrZy8
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<blockquote data-quote="ionbeam" data-source="post: 1293669" data-attributes="member: 277"><p>Relay's switched side have a normally open and a normally closed contacts. With no power the 'switch' part of the relay rests on the normally closed contact, which on the FJR's relay switch is connected to 12 volts and powers the brake light. Power is always supplied to the coil of the relay through the normally closed switch on the handlebar brake lever. Ground is always applied to the coil of the relay through the normally closed brake pedal switch. This keeps the coil of the relay always energized until the front brake lever opens power to the relay coil or the brake pedal opens the ground to the relay. When the relay is energized the switch part of the relay connects to the normally open contact which is an open pin on the FJR relay, so no power is sent to the brake lights. When either brake is activated it turns off the relay coil causing the switch part of the relay to connect with the normally closed pin which is connected to +12 volts, sending power to the brake lights. (At least that's the way the schematic is drawn.) Clear? <img src="https://www.fjrforum.com/forum//public/style_emoticons/default/wackosmiley.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="ionbeam, post: 1293669, member: 277"] Relay's switched side have a normally open and a normally closed contacts. With no power the 'switch' part of the relay rests on the normally closed contact, which on the FJR's relay switch is connected to 12 volts and powers the brake light. Power is always supplied to the coil of the relay through the normally closed switch on the handlebar brake lever. Ground is always applied to the coil of the relay through the normally closed brake pedal switch. This keeps the coil of the relay always energized until the front brake lever opens power to the relay coil or the brake pedal opens the ground to the relay. When the relay is energized the switch part of the relay connects to the normally open contact which is an open pin on the FJR relay, so no power is sent to the brake lights. When either brake is activated it turns off the relay coil causing the switch part of the relay to connect with the normally closed pin which is connected to +12 volts, sending power to the brake lights. (At least that's the way the schematic is drawn.) Clear? [IMG]https://www.fjrforum.com/forum//public/style_emoticons/default/wackosmiley.gif[/IMG] [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
No brake lights and on the road. KrZy8
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