Is there any way other than trying to light a cyno and not being able too?
Darina Smirayne [ Moderator ]
The only way I can think of is to enter the system normally and use your d-scan to cover as many moons as possible, making sure that a cynojammer module would turn up on your d-scan if one was there (via overview settings). If you see a cynojamer module on d-scan, then it is probably jamming all cynos - you might want to carefully visit it to find out if it is online.
Another way would be to visit all moons in a system, but that takes a long time, and will almost certainly get you killed pretty quickly.