Had the g6 for some time now. Already replaced both pass and drive headlight harnesses for low beam. Today I noticed lights were dim. I first pulled the driver side main connector. The pass went out, check all connectors good, bulbs good etc. Pulled passenger side, same thing all bulbs good, connectors good, driver stays light when unplugged. Drivers side good at this point, hi/low turn. I put the bulbs back in one by one and the second I put the high beam bulb in the connector, all four high and low bulbs light up very dimly, pull the bulb, only the drivers low beam lights, normal brightness. Click the high beams on, only driver high and low beams. Turn signal is completely out on the passenger side no matter what bulbs are in or out. Do not think its a short, leaning more towards the malfunction switch, already replace it about 2 years ago.