My 2011 TC will not crank. This first began in a customer’s driveway and had to tow it home. It wasn’t recognizing my key and I don’t have a spare. Called out a mobile locksmith, said I needed a new ecu. Ordered a vin-matched and rebuilt one online. Locksmith came back out said to get a new immobilizer ring. Got one from the dealer, installed it, still nothing. Had a different locksmith come out. He reset everything, programmed 2 keys to it and still nothing. Immobilizer dash light still flashes. Please help
