Coding Remote Fobs Gs 300 Sport

[supramad77]

Ok my gs has a broken remote fob. Nothing wrong with the Battery so i got a spare one from a car being broken in the hope lexus could recode it to my car. Problem is they tell me i need the master key. I only have 1 key and its black. Normally master keys are red. Is there any other way to get it coded without a master key?

[ColinBarber]

what age of GS is it? Master keys are normally black.

[norlec]

If you have the Mk2 the master key is black

[ColinBarber]

and if it's a Mk2 pre Oct 2000 facelift then you cannot get another key programmed without a master unless you also change the engine ECU.

[supramad77]

Sorry should have said. Its a mk1 on a R plate 97. My key is black is there anyway to tell if it's a master key?

[ColinBarber]

I believe the master is black even on the Mk1. If it is a genuine Lexus key then a master will lock/unlock the glovebox. It would be possible for a third party key to be cut as a master key but not programmed as one, if that makes sense.

The Mk1 has a UK installed alarm system rather than being integrated into the engine ECU like the later models so it is not as difficult to get new master keys.

[supramad77]

Does the key have any electronics in it, as mine has no buttons. I have a separate remote fob. The key looks genuine to me with a a gold L stamped into it. I did wonder if the car was alarmed or imobilezed.

[dave1]

Does the key have any electronics in it, as mine has no buttons. I have a separate remote fob. The key looks genuine to me with a a gold L stamped into it. I did wonder if the car was alarmed or imobilezed.

The electronics for the doors/alarm etc. are in the remote keyfob.

If the key is a master key it will open glovebox, boot and the bootlock just under your dash by the petrol flap opener.

[supramad77]

Does the key have any electronics in it, as mine has no buttons. I have a separate remote fob. The key looks genuine to me with a a gold L stamped into it. I did wonder if the car was alarmed or imobilezed.

The electronics for the doors/alarm etc. are in the remote keyfob.

If the key is a master key it will open glovebox, boot and the bootlock just under your dash by the petrol flap opener.

Ahh sounds good then as i know it opens the boot and locks the boot lock. Not locked the glove box but sounds like it's a master.

Thanks for the help.