Parking brake problem

Mine is the same, Lucky when they tested it they pulled it and the right brake worked well enough they did not notice it !
I think it is new cable time. There are people who custom make cable for all industries, If I was going to fix it I was going to take the cable there and get a new one made.

Hi. "Unfortunately" the cable is perfect, I can pull it through with my little finger. It's the arm on the caliper. Any suggestions not involving the words "new calipers" are welcome...

Lots of penetrant type oil, we have a product called WD-40.
and some sharp taps.and lots of manipulation. may free it up if it is rusted/ corroded stuck.

Solved. Just as a FYI for others, here's what it took:
-I took off the cable and made a funnel of paper and poured oil through, took a few hours. The cable felt good before, but it can never hurt
-The arm on the right caliper that didn't pop right back: On the opposite side there's a plastic cap in the middle of a plastic square. Pop that of, then spray WD-40, this is where it "binds". If that's not enough (was for me), remove the lock and take out the entire arm/axle and remove rust.

When does the car industry invent a parking brake that works perfectly despite it not being used for years and it has to survive damp and dirt?