Low power to one fog, unloader relay?

[Qube]

Symptom, driver (left) side fog light is low voltage.

Discoveries:

Reads only 9.5v.
Removing fuse for that side does NOTHING. Stays at 9.5v.
Only time with no voltage is ignition off.
Even in position 1 without lights on, gives 9.5v.
Unloader relay (KLR, or terminal R) gets warm (normal?)
REMOVING the above relay makes voltage 0... not sure if does same to passenger fog
OBC didn't work very rarely. Now it doesn't turn on.
Deep cleaning cycle for headlamp/windshield stopped working.

Comments? Is the relay bad or something else? If it's the former, what's the P/N? Only markings on the unit are:

TOP:
602.039
61.36
1388745

BOTTOM:
87
30
86
85