The squib or spiral is the most likley cause, this can break if the steering wheel gets turned whilst the rack is removed. The nature of the set up lower down the colomb does enable an easy rack change and removal of the steering wheel is not required. If the squib has snapped this may be why the CC doesnt work or may be re;lated to a switch on the pedals that could of been knocked.
I would suggest a diagnostic check first just incase its a seat belt pre-tensioner, often triggered by poor wiring after the drivers seat has been moved. Anyone in the trade will remember the problems that occur with just having to move a seat that hasnt may be moved back in years.
To explain the spiral in the elctrics for the wheel can only turn so many turns is iether direction, normally 2.5 turns, if the wheel gets turned one full turn whilst diconnected and doesnt get turned back , then it has already wound the spiral one turn ! then when the rack is fitted and tested it may snap the spiral. The spirals or "Squibs" are fragile and can and do fail at any time and may be that it was weak and just testing the rack lock to lock finished it off.
Rgds ID
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