2005 Mazda3 remote programming doesn't work
 

Hello, I just bought 2005 Mazda3 yesterday with not-working remote.
So today I got new battery for remote and tried to programming, but my car doesn't respond after open the driver's door 3 times. can't get step 6 below instruction.
Of course I followed every step within exact seconds, but never respond.
Please help me!
Thank you



Step 1: Open driver side door and leave open.

Step 2: Lock and Unlock the drivers door using the power door lock switch on the door

Step 3: Insert key into the ignition.

Step 4: Turn Key to ON position and return to Lock (off) position. Do this 3 times within 10 seconds. LEAVE key in the ignition in Lock (off) position.

Step 5: Close and open the drivers door 3 times. Leave door open after this step

Step 6: ECU should respond by locking and unlocking the doors once.

Step 7: Press any button on remote #1 twice. ECU responds by locking and unlocking the car doors.

Step 8: Additional remotes, repeat Step 7 for up to 3 remotes total.

Step 9: Remove the key from the ignition and the ECU will respond a final time with a series (about 4) of door locks and unlocks. You're done!