Hello, we have a 2006 Range Rover Sport with a problem that I can’t seem to find. We have three keys, and all three keys start the engine without any issues. However, the central lock and unlock button from the key fob don’t work. The central locking system on the dashboard doesn’t work either, and when the car is driving, only the keys that are not the central lock key work. I’ve checked the battery, and all three batteries have more than 3 volts. I’ve also checked the RF receiver, and I have a permanent +12V on the green and white wires, but changing it didn’t solve the problem. Does anyone know what the issue is?

Little maybe more information when I try to lock on the driver side the door I can lock the drive door manually but all other doors don’t lock I don’t think it’s normal ?


Regards,

 

Today received RF frequency tester for test if problem from my keys or not. My 3 keys sent good 433 signal each time I puch one of tree buton on key fob. So problem was not from keys. There is +12v on green wire on rf recevier so can't be this problem too.
Anybody have maybe solution..?