Wiring Issue Headlamp not working Continued...

ricker4444 said
I tested to make sure I had power going into Z.
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That's the battery feed/charge line.

ricker4444 said
It looks like Y is the hot feed to headlamp
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It is the feed to the headlight high beam
ricker4444 said
It looks like Y is the hot feed to headlamp and X is like a return
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NO. Its the feed to the low beam.
The headlights have a ground wire going to the radiator support. That's the return.
ricker4444 said
I have power on Z but no power coming out of Y. Does the power from the battery go directly to the bulkhead connector and then come out of Y to feed the headlamp or does it feed the switch first and then power the lamp?
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The battery feed's the switch first, then the high/low switch, then to the headlights.
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There also is a power feed from the alternator. This connects at welded splice in the harness.
Power will go to the switch from either the alternator or the battery. When the car is running, its the alternator because its power is at 14+ Volts rather than 12ish volts.