A week ago, while I was driving my Ford Focus CC from 2008, the check engine light went on. I stopped the car and, having a cheap OBD-II diagnostic tool with me, I looked over the errors and the car reported:
P2566 Turbo Boost Control Position Sensor Circuit Intermittent
I cleared the error but a few hours later it went back on. I went to a car service and they told me the turbocharger is about to die so I have to recondition it. Meanwhile some lights on the dashboard started to act weird, like the snow symbol turning on along with the seatbelt warning light (but dimmer) and the cruise control light turning on along with the headlights indicator (see video here).
I guess I'm having an electrical issue - I scheduled an appointment to a specialist for the next week, until then is there something I could check on? Could the P2566 error code be related to the other symptoms, or that is a different issue with the turbocharger? Should I disconnect the battery until I take the car to the service?