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My car is an ex USDM 2000 and has a DRL modification a little bit like what you describe. The front running lights were used as the DRLs. Your car is a little bit unusual in that the low beams are also energized.My installation might have been a little bit like MaxGeek's. The relay gets key-on power from the main front relay box (can't remember which fuse) with a separate 12v supply with fuse directly from the battery. The power from that relay intercepts the normal supply to the front running lights up front near the running lights so I have separate wires running from that relay located near the main relay box out to the right and left running lights. It was really a front running lights on all the time system because the lights would stay on even during engine cranking.I don't have the SM or the electrical trouble shooting manual for the 2002+ cars which have significant modifications to the lighting system wiring because of the fixed headlight system. However, if the systems are similar I can do some guessing. Have you checked to see what your taillights are doing? If the taillights are on then you just have an 'all the lights on all the time whenever the ignition switch is on system'. On a pre 2002 car that would be very easy to implement. All you need to do is add a relay which applies a ground to the lighting relay and the taillight relay which switches everything on when the ignition key is in the run position. No need to add separate wiring down to the running lights. On early cars both these relays are in the main relay box up front so easy to access. You could gain control of the relays right close to the relays (where I have marked in blue in the diagram) or right at the lighting switch inside the car (where I have marked in red). All you need is a relay that grounds out these terminals at power up and voila, lights on all the time.[ATTACH=full]198624[/ATTACH] Assuming that the 2005 also has a lighting relay and a taillight relay you will need to find out where these are now located. This changed in later cars and I don't have the 2002+ electrical trouble shooting manual so you would need that to find out where those relays are located and look for non OEM wiring that would take you to the DRL relay. You could also check around the lighting switch looking for non OEM connections there.If the taillights are not lit up then that is more complicated. You would need to add 'field' wiring to power up the front running lights independent of the taillight relay and that should be fairly obvious from poking around out front and that field wiring should ultimately take you to the DRL relay. Also, everything I have stated is based upon the 2005 being similar to the early cars wiring. If there were significant changes made to lighting control system wiring that changes everything.
My car is an ex USDM 2000 and has a DRL modification a little bit like what you describe. The front running lights were used as the DRLs. Your car is a little bit unusual in that the low beams are also energized.
My installation might have been a little bit like MaxGeek's. The relay gets key-on power from the main front relay box (can't remember which fuse) with a separate 12v supply with fuse directly from the battery. The power from that relay intercepts the normal supply to the front running lights up front near the running lights so I have separate wires running from that relay located near the main relay box out to the right and left running lights. It was really a front running lights on all the time system because the lights would stay on even during engine cranking.
I don't have the SM or the electrical trouble shooting manual for the 2002+ cars which have significant modifications to the lighting system wiring because of the fixed headlight system. However, if the systems are similar I can do some guessing. Have you checked to see what your taillights are doing? If the taillights are on then you just have an 'all the lights on all the time whenever the ignition switch is on system'. On a pre 2002 car that would be very easy to implement. All you need to do is add a relay which applies a ground to the lighting relay and the taillight relay which switches everything on when the ignition key is in the run position. No need to add separate wiring down to the running lights. On early cars both these relays are in the main relay box up front so easy to access. You could gain control of the relays right close to the relays (where I have marked in blue in the diagram) or right at the lighting switch inside the car (where I have marked in red). All you need is a relay that grounds out these terminals at power up and voila, lights on all the time.
[ATTACH=full]198624[/ATTACH]
Assuming that the 2005 also has a lighting relay and a taillight relay you will need to find out where these are now located. This changed in later cars and I don't have the 2002+ electrical trouble shooting manual so you would need that to find out where those relays are located and look for non OEM wiring that would take you to the DRL relay. You could also check around the lighting switch looking for non OEM connections there.
If the taillights are not lit up then that is more complicated. You would need to add 'field' wiring to power up the front running lights independent of the taillight relay and that should be fairly obvious from poking around out front and that field wiring should ultimately take you to the DRL relay. Also, everything I have stated is based upon the 2005 being similar to the early cars wiring. If there were significant changes made to lighting control system wiring that changes everything.
