Rele;
The known point of failure is 50 years of passenger compartment dust, including possibly fido hairs from some previous biological anti-theft system, also possibly incorrect interaction with the Cancelling Collar. I suggest cleaning/flushing followed by a lubing with a product with will stay put and not deteriorate (I suggest something like Super-Lube synth grease strategically applied).
Suggested reading:
https://www.sw-em.com/Directional_In..._Mechanism.htm
Good Hunting!