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This is a real poser!!

I have a 2001 LS430 with 100k on board.

My remote fobs have stopped working. I can cycle the locks from inside the car with the actuator switch... I can lock the doors by touching the handle outside the car. (but not unlock it! the boot (trunk) will not work from the fob either. The key blade will lock and unlock all the doors.

I have replaced the batteries on the fobs. I have tried reprogramming the fobs and when I get to the part where I press both lock and unlock for two seconds the locks are supposed to cycle twice but they just keep cycling. and the programming fails.

Does anyone, anywhere have ANY ideas please. (Or do I remortgage my house and head for the dealer?)

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Go here:

http://bahamutcars.free.fr/workshop/LS_01-...ents/index.html

Can take a while to load, then look on the menu at the left.

go to:

Repair Manual ( - 2003.7 )

then to:

BODY ELECTRICAL

then to:

WIRELESS DOOR LOCK CONTROL SYSTEM

then to:

REGISTRATION PROCEDURE

Just try to program one key first, if it dont work try again until you get it.

One you have cracked how to do the one key, its surprising how easy it is to bring the others into the process.

Its a bit of a faffy process, too many choices from the mode selection onwards, so you may have to try it quite a few times.

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