Hi Folks,

Any pointers or suggestions would be helpful here.
If you enjoy a good puzzle, maybe this problem is for you!!

HISTORY

My '87 Syncro had a left front parking light out, and the left side marker
out.

I checked and replaced the bulbs.  They were good.  Both sockets corroded.
Side marker not receiving voltage.  Front parking light receiving voltage.
Socket and bulb replaced on front right parking/directional light.
Directional worked but still no parking light.  Neither left side or left
front wires receiving voltage for driving lights.

Next, I took out the right side marker to check its condition compared to
the right side marker.  Better condition.  However, it stopped getting
voltage after I put it back together.  At the same time both the front right
parking light went out...as did the right rear marker.

RECAP

All driving lights NOT working *Except*: High and low beams, and license
plate lights.  Directionals and 4-way flashers work (always have).  No
matter what I do, all the driving light sockets (except high and low beams)
do NOT get voltage.

So here's the question:  Where is the problem?

Thanks so much for any leads!!!!