Conditions for Setting the DTC

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

A sensor does not transmit for 18 minutes.
A malfunctioning tire pressure receiver.
An open/high resistance, short to voltage, or short to ground in the tire pressure module power or ground circuit.
An open, short to voltage, short to ground, or high resistance in a tire pressure receiver 5-volt reference, low reference, or signal circuit.