headlight issues..

[Dan]

hey guys,

i've just got a replacement headlight from s13eater... but im having trouble getting it to work. i think its the down retract relay, but here's whats happening:

when i manually retract the lights, then click the pop-up switch, both go up and then one (the new one) goes back down immediatley.
if i turn off the switch, nothing moves (the old one stays up)
if i turn it back on, again nothing.. etc..

any ideas?

also, how do you test relays and where can you buy them if needed?