Warning: This installation article is a tutorial guide. By reading this article, you agree it is for reference and AlphaRex USA nor our distributors make any guarantee on any finished results, nor we held any responsibility for any damage, misuse or personal injuries. If you do not fully understand the installation procedure, we highly recommend you seek help with professional mechanics to do the installation.
A lot of our customers have asked if it is possible to have amber DRL for the PRO-Series or NOVA-Series F150 headlights, and with a little bit of modification on the wiring, it is possible. This rewiring only works for 2015-2017 Ford F150 PRO-Series and NOVA-Series, and 2018-2019 Ford F150 PRO-Series and NOVA-Series headlights.
Let’s briefly describe what you need to do and the idea of how it works, and then we can look at the wiring diagram and explain the 4 key steps.
Our 2015-2017 and 2018-2019 Ford F150 PRO-Series and NOVA-Series headlights original setting is with white DRL and amber turn signal. There are three wires coming out from the headlights: white (DRL), yellow (signal) and black (ground). In order to make the headlights with amber DRL, we want to constantly provide power to amber LED, and use a relay to switch the amber LED to signal, and white LED is only for activation light purpose, so we change the function of the wire to white (white LED), yellow (amber LED) and black (ground). Let’s look at the wiring diagram below:
We need a 5 pin relay in order to control the amber LED to be DRL or signal light. Here is a picture of a 5 pin relay you will need to get:
2. Red wire from DRL harness
The red wire from the DRL harness supply power to the white LED. We need to connect the red wire from the DRL harness to the white wire coming out from the headlights. We also tap a wire from the red wire to the pin 87a of the relay. This purpose is to maintain the white LED function on the activation light, but disable white LED as DRL.
3. Yellow wire from headlights
The yellow wire coming out from the headlights supply power to the amber LED. First thing we need to do is we need to cut the yellow wire into two sections. Please note that there is another yellow wire with a small plug, that wire is for factory decoding purpose and you can disregard that.
Cut the yellow wire at the position shown above, so you will have “yellow wire A” that is coming out from the headlights and “yellow wire B” that is connected to the plug. “Yellow wire A” should go to pin 30 of the relay, and “Yellow wire B” should go to pin 86.
4. Black wire from headlights
Tap a wire from the black wire to pin 85 of the relay.
Now you can test the functions as shown below, make sure that the activation sequence is complete, then it should have amber DRL. Try left and right turn signal and see if it works, make sure the sequential signal sequence is complete. Turn on the low beam and make sure amber DRL is on, and try turn signal with low beam is on.