Acura RDX faulty TPMS Unit
 

The onboard display screen of my 2008 Acura RDX showing faulty psi (0 psi) on front left tire.. Took it to dealership for check up. Upon diagnostic test the dealership told me I have a faulty tire pressure sensor and they have replaced it with brand new one. but my car was still showing faulty psi (0 psi). Their final diagnosis is: I need a new TPMS Control Unit $453.342 with tax. Please advise.