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Having just purchased my LX 400 Celsior ( feb 1994) and getting used to it. I have only one key for it which has LOCK/UNLOCK DOOR written on it and a single push button down the side this opens the car door locks and works in the ignition.

Can anyone tell me if this is a master key or not. Also the remote central locking does not work I assume that this is activated by pressing the button on the key?( I have already checked the switch in the car is on, I've been learning from this forum all day!!!)

I also assume the key has a Battery inside but would like to know how to access it to replace the Battery.

I don't want to damage it because I guess it's chipped to the cars security system.

Sorry about all the questions but I don.t have the owners manual ( it was in japanese anyway!)

Many Thanks,


PS Many thanks to Chips for your earlier help

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