No. 1 Door Cannot Be Locked/Unlocked By Transmitter (Card Key): Notes

NO. 1 DOOR CANNOT BE LOCKED/UNLOCKED BY TRANSMITTER (CARD KEY) POSSIBLE CAUSE

1	Door cannot be locked/unlocked by transmitter
POSSIBLE CAUSE	Malfunction in transmitter (card key) battery or transmitter (card key) Malfunction in keyless control module Malfunction in keyless receiver Malfunction in BCM Wrong usage The aftermarket electrical parts are interfering with the keyless entry system
Courtesy of MAZDA MOTORS CORP.