FixVault

No. 3 Transmitter Id Code Cannot Be Reprogrammed [Keyless Entry System]: Notes

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
TROUBLESHOOTING CHART

3 Transmitter ID code cannot be reprogrammed
DESCRIPTION 
  • Malfunction in transmitter battery, transmitter, BCM circuit, or keyless receiver circuit.
POSSIBLE CAUSE 
  • Malfunction in transmitter battery, transmitter, BCM, or keyless receiver
G06205681Courtesy of MAZDA MOTORS CORP.