Fitted the DRL this weekend. pretty straightforward to be honest longest part was running the wiring which was pretty simple.
There is no harness to fit and DRL on the 2012 370 so had to wire them in manually.
I worked out a circuit using a normally closed relay. Power from a 12v source when then ignition is ON will activate the DRL, they will remain on until either the sidelights or main beam are turned on. This also works in the auto position.
Testing the circuit.
All was good so onto the physical part....
Removed the bumper.
These are the location points for the Nismo DRL. 2 x push clips and 1 x spring clip.
The yellow circled portion is from one of the plastic inserts for the Nismo bumper that acts as a guide.
DRL Fitted
I didnt take any pictures of the actual wiring install (boring) but the 12v feed for the ignition on was taken from the fise box in the engine bay and the pin circled in red.
12v to trigger the relax and switch off the DRL when the main beam or side lights come on was taken from the side lights. There are two wires black/yellow and green. The green wire is the 12v.
The final result showing the DRL on and off with the side lights and/or main beam on.
