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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Lighting Forum [GEN 2]
Backup lights
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<blockquote data-quote="GrdnFrmn" data-source="post: 1175828" data-attributes="member: 23043"><p>That's an interesting way to wire a relay. Crash makes a great case for NOT using one in this application. Most folks run the fused battery lead to Pin 30. Pins 85/86 are for the lead from the upfitter switch to to actuate the relay switch. 87a isn't an input lead. It's an output and is normally closed when the upfitter switch is off. In other words, when 85/86 aren't on, 87a is hot out. When 85/86 are on, 87a is off and 87 is hot out to your accessory. If you hook power to 30 as intended by the relay designer, you will accomplish by hooking the OEM back up light lead to 87a is have the back up lights on continuously when the upfitter switch is off. </p><p></p><p><img src="https://i0.wp.com/www.eledric.com.au/image/data/Relays%2012V-24V/Relay%20Schematics%20-%2012V%205%20Pin%2087%2087a%20-%20eledric.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Crash makes a great case for a simpler wiring. Use a two in/one out diode. Power from upfitter goes in one input. Power from the OEM reverse lights go in the other. Output to the S2s or Blade or other accessory. No need to tap the battery at all. No relay required. Easy and proper wiring.</p></blockquote><p></p>
[QUOTE="GrdnFrmn, post: 1175828, member: 23043"] That's an interesting way to wire a relay. Crash makes a great case for NOT using one in this application. Most folks run the fused battery lead to Pin 30. Pins 85/86 are for the lead from the upfitter switch to to actuate the relay switch. 87a isn't an input lead. It's an output and is normally closed when the upfitter switch is off. In other words, when 85/86 aren't on, 87a is hot out. When 85/86 are on, 87a is off and 87 is hot out to your accessory. If you hook power to 30 as intended by the relay designer, you will accomplish by hooking the OEM back up light lead to 87a is have the back up lights on continuously when the upfitter switch is off. [IMG]https://i0.wp.com/www.eledric.com.au/image/data/Relays%2012V-24V/Relay%20Schematics%20-%2012V%205%20Pin%2087%2087a%20-%20eledric.jpg[/IMG] Crash makes a great case for a simpler wiring. Use a two in/one out diode. Power from upfitter goes in one input. Power from the OEM reverse lights go in the other. Output to the S2s or Blade or other accessory. No need to tap the battery at all. No relay required. Easy and proper wiring. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
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Backup lights
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