Join Date: Feb 2007
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If you add another circuit to the headlamp circuit the EU it could bring up a fault as effectively you would have changed the resistance in the circuit. Yeh I know it can be a pain. It may be possible to rig a low ampage relay connected to the system but even then there is the possibility of a fault developing and the electrics on Renaults are fragile to begin with. Wiring diagrams are hard to come by simply beacuse many are now copyrighted so it may easier to use a test lamp or multimeter to find the correct cable colour from the back of the headlamp and then work from there.
As a matter if interest what additions are you planning
Currently in madnoel10's garage:
Honda Civic 1.4l