I am trying to diagnose a problem with my headlights. I'm in Canada so I have Daytime Running Lights (DRL) on my Max. The problem is that the DRLs light up okay (they use a lower light setting on the high beam bulb), but then when I turn on the headlights and the high beams the passenger light goes out. I have replaced the passenger side high beam bulb with a brand new bulb, no difference.
I looked at the service manual and it suggests that the headlamp relay may be a problem. It refers to a RH and a LH relay ,which i assume is right hand(passenger) and left hand(driver).
Can any tech tell me if there is a difference between the two, they have the same numbers printed on them, but does that make them the same?
If they are the identical part, I want to swap them from side to side to see if the problem follows the relay.
Thanks.