To check the wire down the column, set you ohmmeter on the lowest range. With continuity in the wire you should see nor more than 5 ohms. Also clip you meter lead on the wire and check against the column itself. If you have more than an open circuit there (however your meter indicates that), then you'll need to replace the wire for sure. You can also use a test light for the tests. You should get a light between the steering wheel contact and the wire stub down the column and no light from either the contact or the wire stub to the column itself. [on edit] I see that your wire is broken down by the column, so you already know you need to replace it, so testing is a useless exercise.
To fish the new wire in, tape a piece of wire or string to the wire stub before pulling the bearing, then use that string to pull the wire thru the hole.

Last edited by klhansen; 12/26/2019 1:00 AM.

Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.