Key Fob Issues 06 Avensis 2.2

[Ciaphas]

Recently my car has developed an intermittent fault where the key fob will not unlock the car, the Battery appears to be fine as the key will always lock the car (even when it won't unlock). This occasionally results in me having to use the key manually, setting the car alarm off and making a lot of noise at 8:00 in the morning.

I have tried two methods of reprogramming;

1. Driver door open and unlocked. Key out of the ignition
2. Insert the key and remove 2 times in 5 sec.
3. Close and open driver door 2 times in 40 sec.
4. Insert the key and remove it again from ignition.
5. Close and open driver door 2 times in 40 sec.
6. Insert the key in ignition,
7. Close the door,
8. Turn to on and back to lock in 1 second intervals. 1 time for add, 2 times for rewrite, 3 for confirmation 5 for prohibition. (yes, there is no ?4?)
9. Remove the key
10. Power lock will cycle to confirm
11. For add or rewrite mode within 40 sec of the confirmation,
A. press ?lock? and ?unlock? buttons of the FOB at the same time between 1 and 1.5 seconds.
B. within 3 sec press ?Lock? button for more than 1 sec and release.
C. If it?s correct, the power door lock will cycle once. If it?s wrong the door lock will cycle twice.

and

STEPS:

1. Begin by sitting in the driver seat with all the doors shut.
2. Insert your working master (black) key in the ignition.
3. Very Quickly, turn the key from "LOCK" to "ON" 5 times. (You will end with the key in the "LOCK" position)
4. Immediately, open and close the driver door 6 times very quickly. (End with the door closed)
5. Immediately, remove your working Master Key and insert your new Master Key
6. Turn the key to the "ON" position and leave it there while you wait for 1 minute.
7. After the minute, if you want to program another key, just remove the first one and insert the next one, turning it to "ON" and leaving it in position for 1 minute.

Every other instruction I have managed to find refers to pre 2002 models.

I have tried asking my local Toyota garage but they charge £45 for key reprogramming so I'd like to ensure that all other options are exhausted before I get them to have a look at it.

Any help would be greatly appreciated.

Daniel

[Devon Aygo]

If the car will lock remotely, then the key is programmed to the car and reprogramming will have no affect, you have either a faulty unlock function on the key or a fault on the car preventing the car from responding to the unlock signal.