"High Beam / Low Beam Mod" Problems
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Tuned
Joined: May 2005
Posts: 436
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From: MI
"High Beam / Low Beam Mod" Problems
I tried the mod https://www.ford-trucks.com/article/..._Beam_Mod.html
on my 1994 F-150. Some of the instructions obviously apply to a different year. I did find the wires(and yes, they are the same wires going to the head lights) and hooked it up according to the instructions. My problem is that now the high beams are on all the time, no matter where the head light switch is. What did I do wrong? I found the wires in the harness next to the steering column. Was I supposed to tie in somewhere else?
Thanks for all help in advance.
on my 1994 F-150. Some of the instructions obviously apply to a different year. I did find the wires(and yes, they are the same wires going to the head lights) and hooked it up according to the instructions. My problem is that now the high beams are on all the time, no matter where the head light switch is. What did I do wrong? I found the wires in the harness next to the steering column. Was I supposed to tie in somewhere else?
Thanks for all help in advance.
Moderator
Joined: Jan 2001
Posts: 56,995
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From: Virginia
I checked it out, and I think the author made a mistake or a typo. You need to switch the lightgreen/black and the red/black. Here is the paragraph again worded correctly.
I will see if I can get someone to change this.
Find a place to run a ground wire. Attach a wire from that point to post number 86 on the relay. Next your going to need to find a 12V. I ran a wire from the hot post on the starter relay, along the firewall, and through the firewall. You will want to put a fuse some where along this wire. Connect this wire to the number 30 post on the relay. Use the tap in on the lightgreen/black wire, about three or four inches from the lighting harness. Connect this wire the number 85 post on the relay. Next cut the red/black wire coming from the lighting harness. Now use two of the three hole on the three way connector on the wire you just cut. Run a wire from the third connection on the three way to post number 87 on the relay. Now reconnect the lighting harness. Next, turn on your head lights and give it test. Reinstall the lower steering column cover, the medal panel, and the plastic panel. Reinstall the hood release and the anti‑theft chip. It takes around two hours, and only cost me around seventeen dollars.
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