So my sc430 keeps giving me trouble and all the lights come on while i am driving and then it shuts off on me. I could be wrong but i think it has something to do with a iphone connection that i have. I originally thought it was the battery so i replaced that and it was running fine for a day with no issues. Then today shortly after i tried to use the iphone connector the same thing happened.

 

Need clarity.

When you say lights come on do you mean the engine dies and then all of the dash lights come on . ?

When you say the iphone connection are you talking about a hard wired cable from the i phone to an interface module like a vias unit ?

The i phone operates via blue tooth, I dont think there is any way a blue tooth connection could cause your motor to shut down as well as any cable connection from the iphone to the car

Your issue is if the engine cuts out then I would say its an igntion switch problem or some other issue related to the electircal system