I almost never use my high beams at all, but for some reason I got a check high beam warning coming on in my 2005 X5. My passenger side high beam is not turning on. I changed the high beam bulb out and realized it was not the bulb.

So I metered the voltage on the connector that connects to the H1 bulb. When there is no bulb in the holder I see voltage come up to about 8-9Vdc. If I put a bulb in there I see no voltage at all.

Anyone know more about the X5 electrical system that can help.

I guess I should also mention my X5 originally had halogen head lights and I swapped to OEM bixenon headlights. I have had them working for about 6 months with no issues till now.

Any thoughts? Anyone?

Thanks.