Hello fellow RL owners,My 05 RL has the DRL system error, I've replaced thr relay and the headlight combination switch and still have no bright lights.
Any help would be greatly appreciated.
And the fuse is good.
TIA .

 

I figured it out ,after replacing the headlight combination switch ,the drl relay, I checked the headlight bulbs and they were blown,
Replaced them and everything is back to normal.
Just a heads up if anyone else has this problem,
Hopefully this will help in diagnosing the problem.