On the assumption that the CSR wiring is the same as the SV et al the wiring diagram will show that the power travels through the hazards switch. Which is prone to poor contacts with age, rain and lack of use. A very good squirt of contact cleaner top and bottom and many switch activations (on, off, on, off, on, off, repeat to twenty cycles) clears it for me. If that doesn't work, repeat until bored then pry the switch out and apply emery paper (or equivalent) to prongs, reinstall and try again. This is part of hibernation waking routine here.