Conditions for Setting the DTC
WARNING: This page is about a different car, the 2007 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
The remote control door lock receiver (RCDLR) will set this DTC during antenna activation if the keyless entry antenna - back up is open, or has a high resistance. The RCDLR can only set a DTC when it is the vehicle system voltage is between 9-16 volts.