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2007 chevy aveo daytime running light works on drivers side. Turn lights to on and the drivers side goes out and the passenger side comes on. Bright lights work for both at same time.
There is possibly a bad ground (floating), or more likely a bad DRL module.
Does the DRL indicator come on in the instrument cluster at the proper time? I can be fairly certain the problem is NOT the DRL relay, the headlight switch, any fuse, or bulbs.
Electrical Diagram below:
Required, but never shown