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1997 - 2003 Ford F150 General discussion on the Ford 1997 - 2003 F150 truck.

Reverse lights and fog lights on with unlock project.

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Old 05-30-2013, 10:23 PM
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You could use this way, but it sounds like you have it figured out.

I just think a simple DPDT relay and a SPST relay + diode would work.

Old 05-30-2013, 10:25 PM
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It very well could, and probably would. Thats the setup you did for the radio stays on until door opens, right?
Old 05-30-2013, 10:42 PM
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Yea, You would have to switch up the wires, but would want the diode to procect your acc wire from getting feedback from your power leads. Like you stated.
Old 05-30-2013, 10:45 PM
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I just wanted to use it as it gives me a mount I can use, and I want it nice and clean. Im just going to need a lot of wire to reach the reverses unless I can splice into it early. The fogs are gonna be easy though. I think you were the one who found out how to do the relay removal, right? Genius, you are... Thats gonna save me a lot of pain in the future...
Old 05-30-2013, 11:14 PM
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Yea, I can pick up the set of 4 relays with the box and the harness (the dash mount ones) for like 10 bucks if you are in need.
Old 05-30-2013, 11:28 PM
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Originally Posted by ibd2328
Yea, I can pick up the set of 4 relays with the box and the harness (the dash mount ones) for like 10 bucks if you are in need.
If I am, I'll let ya know. Im going to go with a factory relay, as I know it will fit. Im just going to need a lot of wiring and plugs. I think it was your idea about the reverses coming on with the truck unlock actually... I just didnt want them to come on while the truck was on...
Old 05-30-2013, 11:30 PM
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Yea that was mine too. I was actually talking about the entire box of 3/4 relays under the oval piece under the dash. I have two of them laying around here with all the wires and relays attached. Picked them out of a junkyard and was gonna get around to some more projects, just havent had time
Old 05-30-2013, 11:34 PM
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Originally Posted by ibd2328
Yea that was mine too. I was actually talking about the entire box of 3/4 relays under the oval piece under the dash. I have two of them laying around here with all the wires and relays attached. Picked them out of a junkyard and was gonna get around to some more projects, just havent had time
I could use that.. For the wiring and all that, could make it simpler. What were you planning with them anyway?
Old 05-31-2013, 12:52 AM
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Originally Posted by 03f15012
I could use that.. For the wiring and all that, could make it simpler. What were you planning with them anyway?
Had planned on wiring up a MPG calculator, and so extra LED readout projects for the overhead console, just never got around to wiring up the 555 timer.
Old 06-05-2013, 06:19 PM
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Alright, quick update. I've been dragging this a lot lately, but I have made some progress. I've gotten to the point where I have all the relays wired up, and power to the diode. It isnt the cleanest, but all connections are good, and I get power when I need it, and no power when I don't. All I need to do is splice into the fog light wire and attempt to find an in-cab wire that goes to the reverse lights. I'll post up a video and pics when I do successfully wire up the reverse lights and fog lights.

P.S. An extra wire from the battery is NOT needed. For those who do the HL flash disable, You simply use the power wire from the already installed wire, and just link prong 5 to the hot wire on the 2nd relay. Made things a lot easier.


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