The high beams have never failed to work correctly regardless of what the low beams do.

Here's what I did with the fuses:

1. turned low beam headlights on

2. left hand came on; right hand did not

3. pulled fuse for right hand to determine if it has blown - it was OK

4. pulled fuse for left hand to determine if it was blown - it was OK

5. after pulling the left hand fuse, the lamp remained on but not as bright

6. placed right hand fuse in left hand lamp socket - lamp returned to normal

7. placed left hand fuse in right hand lamp socket - lamp still out

8. rechecked high beams - both worked normally.

This problem was first noticed yesterday. From the limited amount of time we've seen this, the low beam operation seems intermittant - you never know what will happen when the low beams are turned on - do you get one; do you get both; do you get neither; does one or both come on or go out when driving? High beams never fail to operate regardless of what the low beams are doing.

I do have a volt meter but may need some additional guidance as to where to test. I'm more of a visual person when it comes to cars.