Went to use my CDL today and the light/chime didnt work. It feels like the CDL is engaged but no confirmation. It has worked properly in the past. Any ideas/simple fixes? (hahaha!) Thank you.

 

Most likely the diff lock lamp switches as shown in the pic is not working.

 

Thank you for the picture. Is this something fairly easy to replace or do I need a mechanic to handle? I'm learning to work on my D2 but sometimes its less expensive in the long run to have a professional handle vs breaking something.