Need Help With My Remote Key Not Able To Lock/unlock.

[gs430y2002]

Hello, I have a 2002 GS430 which working great at the begining, now my remote key can NOT lock/unlock the door. Before it start died out, I have to press couple times to lock/unlock the door, so I though the battery on key is bad then I replace with a new battery then it stop working completely. I have follow the procedure one of the thread on this forum to reprogram the key, but does not get any success. When I get to step number 7, the door lock and unlock 2 times then the engine automatically start. Please advice.

Remote Programming 1. Close and lock all doors. Unlock and open drivers door.

2. Put key into ignition and remove. Do not turn it on.

3. Using the electric lock switch. Lock and unlock 5 times. (Lock, Unlock, Lock, Unlock, Lock, Unlock, Lock, Unlock, Lock, Unlock)

4. Close and open drivers door.

5. Using the electric lock switch. Lock and unlock 5 times. (Lock, Unlock, Lock, Unlock, Lock, Unlock, Lock, Unlock, Lock, Unlock)

6. Put key into ignition. Turn to "ON" , turn off (2 times) and remove.

7. You will see the door locks cycle by themselves.

If the door locks do not cycle (lock and unlock) by themselves then the car isn’t in programming mode and you must start over.

8. On the remote, press and hold the LOCK and the UNLOCK button at the same time for no more than 2 seconds.

9. On the remote, press the LOCK button for no more than 1 second.

AT THIS POINT, the locks should cycle by themselves ONE time. This means the procedure was accepted.

IF the locks cycle twice it has failed.

The most common reason for programming failure is because the car didn’t receive a good signal from the remote. To fix this problem try these tips. 1) Stand outside of the car while you are performing steps 8 and 9. 2) Don’t hold the remote buttons down as long.

As long as the car is still in programming mode you can keep trying steps 8 and 9 until you complete the programming. If you wait too long and the car exits the programming mode then you must start over.

After you get the remote to program then continue on with step 10.

10. Close and open door to end programming procedure.