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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Audio/Video/Electronics Forum [GEN 1]
lets talk relays and wiring
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<blockquote data-quote="The Car Stereo Company" data-source="post: 1980061" data-attributes="member: 7124"><p>now on to an spdt relay set up. i have reverse lights that come on in reverse. they are also on a switch so i can use them anytime. this is where wiring becomes more specific on a relay. while 85 and 86 do not change, 87, 87a, and 30 are location specific. but if you wire relays like i do then it doesnt change except for 87a. lets discuss this more. as stated above 87a and 30 are a normally closed circuit again, meaning power flows through when the relay has no power. so i have reverse power going into 87a and 30 goes out to my aftermarket reverse lights. this means that when i put my truck into reverse, the aftermarket lights turn on automatically and shut off when taken out of reverse. acts just like my reverse lights. now 87 is connected to my battery. 85 is still my aux switch input and 86 is still ground (according to how i wire relays, so theres no change for me) so what happens is when i flip my aux switch, it breaks the connection between 87a and jumps to 87. this means that since 87 is connected to my battery, it is now sending power through the relay to 30 which go out to my lights[ATTACH=full]436966[/ATTACH]doing this gives me the flexibility to use the reverse lights when setting up camp in the dark, or whatever you need aux lights for. it becomes just that. aux lighting, with the addition of being able to have them as reverse lights. keep in mind, you may need to wire up a second relay to power 87a depending on your lights. the oem circuitry may not be enough to power both. so make sure you got sufficient power going to 87a. i have a gen 1 which used halogen bulbs. i replaced mine with led which have 1/4 the current draw. i use 2 6in leds under my bumper which when adding up the current is less than 1/2amp max more than my oem halogen bulbs. in my case, i did not use a relay.</p><p></p><p>i have also done this with video feed for multiple cameras. i can have 2 different video feeds go into a single screen and toggle between the two. however you dont necessarily use these relays, but any spdt relay can do it.</p><p></p><p>hopefully this explains why you can not use an spst relay as an spdt relay. there physically isnt enough posts to do so</p></blockquote><p></p>
[QUOTE="The Car Stereo Company, post: 1980061, member: 7124"] now on to an spdt relay set up. i have reverse lights that come on in reverse. they are also on a switch so i can use them anytime. this is where wiring becomes more specific on a relay. while 85 and 86 do not change, 87, 87a, and 30 are location specific. but if you wire relays like i do then it doesnt change except for 87a. lets discuss this more. as stated above 87a and 30 are a normally closed circuit again, meaning power flows through when the relay has no power. so i have reverse power going into 87a and 30 goes out to my aftermarket reverse lights. this means that when i put my truck into reverse, the aftermarket lights turn on automatically and shut off when taken out of reverse. acts just like my reverse lights. now 87 is connected to my battery. 85 is still my aux switch input and 86 is still ground (according to how i wire relays, so theres no change for me) so what happens is when i flip my aux switch, it breaks the connection between 87a and jumps to 87. this means that since 87 is connected to my battery, it is now sending power through the relay to 30 which go out to my lights[ATTACH type="full" alt="IMG_20231216_153243.jpg"]436966[/ATTACH]doing this gives me the flexibility to use the reverse lights when setting up camp in the dark, or whatever you need aux lights for. it becomes just that. aux lighting, with the addition of being able to have them as reverse lights. keep in mind, you may need to wire up a second relay to power 87a depending on your lights. the oem circuitry may not be enough to power both. so make sure you got sufficient power going to 87a. i have a gen 1 which used halogen bulbs. i replaced mine with led which have 1/4 the current draw. i use 2 6in leds under my bumper which when adding up the current is less than 1/2amp max more than my oem halogen bulbs. in my case, i did not use a relay. i have also done this with video feed for multiple cameras. i can have 2 different video feeds go into a single screen and toggle between the two. however you dont necessarily use these relays, but any spdt relay can do it. hopefully this explains why you can not use an spst relay as an spdt relay. there physically isnt enough posts to do so [/QUOTE]
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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Audio/Video/Electronics Forum [GEN 1]
lets talk relays and wiring
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