Direct Tire Pressure Monitoring (TPM)systems Are Being Discussed

Multiple Choice

Direct tire pressure monitoring (TPM) systems are being discussed. Technician A says the tire pressure sensor is a single unit with a built-in battery that measures tire pressure and temperature and transmits a signal and ID number for that particular tire. Technician B says the system does not require a relearn procedure after tires have been rotated or replaced because it knows the ID of each tire. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B