If the 9005 bulbs work fine, check all the connections for the H1 adapter harness. It does not matter which is the positive and negative on the H1 bulb. The H4 bulb has 3 terminals because one is the ground, one is positive for the low beam and one is positive for the high beam. Ive heard that both the high and low beam on the H4 bulb cannot be on at the same time, due to the heat, it blows the bulb.

Just check your connections...

The low beams should be on all the time, weather the high beams are on or not... make sure the H4 bulbs are wired properly too... only one filament should be working.