Originally Posted by guru.golf
1. had sent the car to the dealership they cleaned the throttle body and sent it back as they couldnt figure out the problem.
2. Sent the car for re-service when they said alternator is the problem and ordered it. Car was with dealership for 4 days.
3. after 2 days of delivery same fluctuation happened i called the service advisor he advised me to get terminals changed from outside as they didint have the terminal in stock & it cant be ordered.
4. immediately went to my mechanic and got M800 terminals installed (fluctuation stopped) except for airbag light ????
Dear guru, kindly note that, after you start your engine every electronics work in alternator not the battery,
If you experience this fluctuations even after changing alternator, its something other than it.
Note : fluctuations denote light work's fine but connection or current is fluctuating
I think connection from instrument cluster to ecu is loose or some wire is in less contact ,check the connectors of instrument panel and ECU.
If alternator is the fault , ecu Will show engine light warning for sure.
If its airbag light.
Take to service center ,they Will connect obd device and see what specific error its , actually ECU detected something wrong in airbag system, ecu knows what its, but it will just denote it by light indication available, so using obd port they get to know the problem.
It may be sensor issue or something else,
As its related to airbag, take to service guy soon and be safe