I made two new keys at a local workshop for 06 RX400h (Valet & remote key). The valet works fine, but the keys maker was not able to program the remote key. The remote opens and runs the car, but the remote doesn't work.
After that, the security light indicator flashes as follows:
1. When the car is locked, the light indicator is always on.
2. When the car is moving, the light indicator lights twice, then waits 1 sec, and then lights twice again and so on. It never stops flickering while the car is moving.
The security system is working fine. I tried to open the window, close doors and lock the car. Then open the door from inside, and the alarm system works fine. I don't find anything that is not working properly in the car, only the light indicator.
I went to Lexus dealership, he reset the error code related to the immobilizer, but the secuiryt light is still flashes as described above and not as normal.
All the keys make the security light flashes incorrectly.
Any body can help?