This Mustang Parts Installation Guide Works For
Installation Time: (approx) 1 Hour
The DRL-1M5 module is designed to convert the front turn signal lamps into Daytime Running Lights. The module comes with all the necessary wiring and connectors to install into your 2005+ Mustang.
The unit is installed under the hood, near the Bussed Electrical Center on the passenger side of the car.
Installation should take about a hour. You will need a wire cutter/strippers and a pair of pliers to make the connections. Read the instructions carefully and familiarize yourself with the module.
This is a picture of the module. The module controls the operation of both turn signals.
The DRL module can be wired so that both left and right lamps are synchronized. In other words, when in DRL mode, if you turn on a signal, the other lamp turns off. After the signal is complete, both lamps come back on in DRL mode. The reason this is done is because there can be a situation if an oncoming driver just glances at your car while you have a signal on. If he looks when the turn signal is in the off cycle, he will see the other lamp on, and may assume you are turning the other way. In synchronized mode, the other lamp turns off, so there is no confusion.
In non-synchronized mode, the opposite lamp will stay in DRL mode when a turn signal is in use. This is the way turn signal DRLs operate on today's automobiles.
You can program the DRL module to work in synchronized or non-synchronized mode. As you receive the module, it is programmed in non-synchronized mode. If you want this mode, then you can skip this section and continue with the installation.
If you want the unit to operate in synchronized mode, use a quick-splice to connect the white wire to the green module wire. This is not a permanent setting. If you later wish to go back to non-synchronized mode, simply disconnect the two wires.
All wiring will be done at the Bussed Electrical Center (BEC) under the hood, on the passenger side of the car.
Start the car. Both turn signals should be on. Turn on the left turn signal and see that the left signal blinks. Turn off the signal and after a couple seconds, the turn signal light will come on as a DRL. Turn on the right turn signal and check for proper operation.
Turn on the parking lights. Both turn signal filaments should go off, and only the park filament should be on. Turn the lights off and the turn signal filaments should come on as DRLs. If something isn't working, double check your wiring for errors.
Stuff the wires back into the harness looms and secure them using tie wraps or electrical tape. Wedge the module between the two looms at the BEC. Note that the module is oriented with the closed end UP and the wires pointing DOWN. This is to keep water out of the module in case it gets wet.