Battery Voltage: The scan tool displays the current state of the battery in volts.
Last RFA Cmd Since Wake-Up: The scan tool displays the last RFA commanded message from the
body control module (BCM). The scan tool displays NONE if the BCM wakes-up
 without   receiving a remote control door lock receiver (RCDLR) request from
 a programmed keyless entry transmitter. When any button is pressed on the
 transmitter after the BCM wake-up, the scan tool displays the most recent
 command.
RFA Message Since Wake-Up: The scan tool displays the last message sent to the BCM from the
RCDLR.