Keys

[LEX51S]

guys and girls

i have an old key from my old written off lexus. can i reprogram the transponders to work on my new is 200.

has anyone done this and how is it done. is there away to leave the lexus dealerships out of it??

cheers

[sslc]

guys and girls

i have an old key from my old written off lexus. can i reprogram the transponders to work on my new is 200.

has anyone done this and how is it done. is there away to leave the lexus dealerships out of it??

cheers

I too just bought a IS200 however they only gave me key. I hope it is the master key. I too want to purchase another, however the dealership said it'll cost around $500. I was like "are you *BLEEP*ting me". Had a look on ebay and some other forums, I know you can buy a new key with transponder and somehow program it (using your own master key). If all else fails then you can take it the dealership where they could program it for you (hopefully for a small price)

Does anyone know any supplier who sells local to australia? and had any experience with this?

[sslc]

Just found a forum in the UK site. This tells you EVERYTHING you need to do.

http://www.lexusownersclub.co.uk/forum/ind...showtopic=48876

I'm going to buy a key on Ebay and Transponder and see if this works. I'm quietly confident.

[LEX51S]

let me know how you go sslc.

if it works i might consider getting another key.

i just need a new casing for the transponder at the moment but would be handy to have two master keys.

cheers

[sslc]

Hi LEX51S,

I'm bidding on ebay now.

As for you, I think you can simply program your transponder with your new IS200. There are a few empty shells you can get if you already have the transponder as well.

I think the ECU of your car just needs to identify your transponder so when you use it, it'll work with the car.

Give it a try and let us know how it goes.

[LEX51S]

im gonna give it ago tomorow.

im just worried about wrecking the one ive got and as i heard someone else say. i dont want to go and pull my pants down to lexus.

anyway well see ill let you know.

[sslc]

Hi,

If your concerned that you'll lose the use of your master key (with your new IS200), do the deletion instructions first so that the ECU only registers your master key in the memory. I think it can add on another 3 with no problems. At no point should your original master key stop working so it should be all good.

Good luck

[LEX51S]

GUUUUYS

i programed an old transponder today.

but the method described in the link above didnt really work for me. (started to work then would not complete)

found another method in a forum over seas

i have a 2002 IS200 i think 2002 + they changed the method i read somewhere. anyway below is the method that worked for me.

Key Programming (Starter Chip)

1. Insert an already programmed master key into the ignition. Do not turn.

2. Press and release the gas pedal 5 times.

3. Press and release the brake pedal 6 times.

4. Remove the key from the ignition.

5. Insert the new key you want to program into the ignition.

6. Press and release the gas pedal one time.

7. Wait 1 minute. The security light will be blinking for this one minute. When it stops blinking your key is programmed (Be patient, it'll happen). To end programming step on brake one time.

NOTE: Look for your security light. This light will guide you during the programming procedure. The security light will go off at Step 1. It will remain off until Step 6. The security light will come on and start to blink after Step 6 until the key is programmed. If the security light comes on after Step 4 STOP the procedure and start over again.

If you perform this procedure too slowly your car will not go into programming mode. If you can not get your car to go into programming mode make sure you are using a master key and not a valet key. If you have a master key then you will probably need to perform this procedure more quickly.

Remote Programming

1. Close and lock all doors. Unlock and open drivers door.

2. Put key into ignition and remove. Do not turn it on.

3. Using the electric lock switch. Lock and unlock 5 times. (Lock, Unlock, Lock, Unlock, Lock, Unlock, Lock, Unlock, Lock, Unlock)

4. Close and open drivers door.

5. Using the electric lock switch. Lock and unlock 5 times. (Lock, Unlock, Lock, Unlock, Lock, Unlock, Lock, Unlock, Lock, Unlock)

6. Put key into ignition. Turn to "ON" , turn off and remove.

7. You will see the door locks cycle by themselves.

If the door locks do not cycle (lock and unlock) by themselves then the car isn’t in programming mode and you must start over.

8. On the remote, press and hold the LOCK and the UNLOCK button at the same time for no more than 2 seconds.

9. On the remote, press the LOCK button for no more than 1 second.

AT THIS POINT, the locks should cycle by themselves ONE time. This means the procedure was accepted.

IF the locks cycle twice it has failed.

The most common reason for programming failure is because the car didn’t receive a good signal from the remote. To fix this problem try these tips. 1) Stand outside of the car while you are performing steps 8 and 9. 2) Don’t hold the remote buttons down as long.

As long as the car is still in programming mode you can keep trying steps 8 and 9 until you complete the programming. If you wait too long and the car exits the programming mode then you must start over.

After you get the remote to program then continue on with step 10.

10. Close and open door to end programming procedure.

good luck!!!!

[sslc]

Hi,

I've ordered my new key.

It should take 2 weeks before delivery.

Will report on how it goes when I get it.

I do have 1 question, does the key have to be cut before you can insert it into the ignition? (I'm assuming it does)

[hawk77]

Hi,

I've ordered my new key.

It should take 2 weeks before delivery.

Will report on how it goes when I get it.

I do have 1 question, does the key have to be cut before you can insert it into the ignition? (I'm assuming it does)

I bought 2 keys from uk(i THINK THEY WILL WORK ON AU ECU's) and Lexus quote 500$ as well... what?

Anyway, if it's posible to reprogram the keys with no probs might as well...I will see how you guys go and then I will try mine.

[sslc]

Hi,

Yeah, also bought mine from UK. I think the US keys look different and have a panic button.

I'm quietly confident that it'll work.. Can't wait. Hawk77, you should give it a go. It can't stuff up your keys.

Worst is that it doesn't successfully program your new key.

(Dealership may even charge only a small price, now that you have the keys, if your not confident)

[sslc]

At last. New Key has arrived. Just have to get them cut so I can program over the weekend.

Will post back after the weekend

Does anyone know where I can get the key cut. Does it have to be at a specialist locksmith or can any key cutter do it?

[sslc]

Hi,

I've got the key cut and I've tried programming it. I bought it from the UK. Followed the steps to program the doors etc, everything goes as according to the instructions, however it doesn't seem to finish or program. (ie, holding the lock button and unlock button on the new key). I've tried a few times and it doesn't seem to work. Note: The doors don't continue to cycle lock/unlock?

LEX5IS, did it pick up your new key right away?

Also tried programing the chip so it would start the car. Also followed the instructions to a T and it just doesn't program the key (ie, the blinking security light just continues to blink for 3minutes, where by I then give up.)

I'm going to try and delete option. Maybe the ECU has already a full number of programed keys on it.

[LEX51S]

Hi,

I've got the key cut and I've tried programming it. I bought it from the UK. Followed the steps to program the doors etc, everything goes as according to the instructions, however it doesn't seem to finish or program. (ie, holding the lock button and unlock button on the new key). I've tried a few times and it doesn't seem to work. Note: The doors don't continue to cycle lock/unlock?

LEX5IS, did it pick up your new key right away?

Also tried programing the chip so it would start the car. Also followed the instructions to a T and it just doesn't program the key (ie, the blinking security light just continues to blink for 3minutes, where by I then give up.)

I'm going to try and delete option. Maybe the ECU has already a full number of programed keys on it.

sslc i had problems with the first programing method thats why i posted the second one i found. but also i had an old key from a previous car so it is genuine lexus that i re programmed. and it all went ok after about 5 tries because i kept stuffing it up but it eventually worked..

[sslc]

I'ved tried both methods and it didn't work. The guy that I bought the key from has just sent me what looks like actual scans from a Toyota manual for programming the keys. SWEEET. I'll have a look at them tonight. Will let you know if its very different or not.

guys from lexus service gave me follow up call to check how my car is. I asked them if they could program it and they said they could probably do it for free... but I like to do things myself.. because I can ;-).. Worst case I'll just go and ask them.

[sslc]

All,

I decided to got to the dealership. They tried to program the key using the copying machine they have. (transponder-to-transponder). This didn't even work!!

As you know I purchased my key from ebay (UK) and it has denso CE0123 on the back and it doesn't work!

Either the UK just have a totally different frequency to that of australian ECU? (which sounds strange because the cars should all be made in japan), or that my key has an incorrect transponder in it. (my open boot lid car icon was faded in the middle indicating it wasn't new. however the lock and unlock, looked brand new).

So I'm suspecting there could be something dodgey with my key. Has anyone had success with these Denso keys from the UK?

[hawk77]

All,

I decided to got to the dealership. They tried to program the key using the copying machine they have. (transponder-to-transponder). This didn't even work!!

As you know I purchased my key from ebay (UK) and it has denso CE0123 on the back and it doesn't work!

Either the UK just have a totally different frequency to that of australian ECU? (which sounds strange because the cars should all be made in japan), or that my key has an incorrect transponder in it. (my open boot lid car icon was faded in the middle indicating it wasn't new. however the lock and unlock, looked brand new).

So I'm suspecting there could be something dodgey with my key. Has anyone had success with these Denso keys from the UK?

Hi mate,

I've tried to reprogram both new keys but with no luck. it seems that only one of them I managed to make it work on my car but lock and unlock functions doesn't work. i can only start the car with the new one. With the other one, I couldn't do anything, however the key has a panic button on it. So, to sum up my learnings, if the key is from UK, and has the open boot button than it should work, if not, then it will not work on the Au ECU's.

Another thing though, I've had a chat with a nice chap from an car alarm company from Brisbane and he tod me that if he installs an alarm on my IS200 he could reprogramm and sincronyze the key in order to respond to lock, unlock, panic and so forth. So having said that, I think I will give this a go. Is going to cost me $300 but at least I will have an alarm and some additional stuff that comes with.

If you have any other ways it would be great if you could share it with us.

Cheers

[sslc]

Thanks Hawk77,

I've sent my key back to UK. I suspect my key was dodgy as the boot button had been worn already! (plus the lexus service guys couldn't even clone my master on to it)

It sounds very strange that you have programmed the key to start your car but can't program it with the doors? What happens when you try to program the doors?

[hawk77]

Thanks Hawk77,

I've sent my key back to UK. I suspect my key was dodgy as the boot button had been worn already! (plus the lexus service guys couldn't even clone my master on to it)

It sounds very strange that you have programmed the key to start your car but can't program it with the doors? What happens when you try to program the doors?

When I try to program the doors and so forth, the programing doesn's finish, or at the end doesn't anything. I think I will try to get into Lexus Brisbane to do it, unless you guys know a different method of how to do it.

[LEX51S]

Thanks Hawk77,

I've sent my key back to UK. I suspect my key was dodgy as the boot button had been worn already! (plus the lexus service guys couldn't even clone my master on to it)

It sounds very strange that you have programmed the key to start your car but can't program it with the doors? What happens when you try to program the doors?

When I try to program the doors and so forth, the programing doesn's finish, or at the end doesn't anything. I think I will try to get into Lexus Brisbane to do it, unless you guys know a different method of how to do it.

hawk77

i had a similar problem so what i did is i did the doors first and then the other bit.

dont know if u have tried this but see how that goes dunno. just an idea.

good luck.

[sslc]

All,

I got my key back. This time it successfully programmed with my immobiliser in my car and so can start the car. Likewise with hawk77 I've tried a number of times to get the key to recognise the ECU (hence lock/unlock/boot) but to no avail. I'll try a few more time before going back to the dealership. If it works with starting the car, I'm sure that they will be able to clone onto it.

[sslc]

All,

To conclude the drama, after getting the key back from the UK and easily registering the key with the immoboliser and NOT successfully being able to program the doors, (most likely due to different frequency), I took it to lexus again and they tried to clone it again and it didn't work again.

So in conclusion, the key from UK won't work with the door as they must use a different frequency.. (WTF) but can be programmed with the immobiliser. So it can be used, however it will never be another master key!. So if you lose your original key, this spare will be able to open the doors, (manually) start the car etc, however you won't be able to ever program another master key.

All in all, unfortunately it wasn't worth getting the key (as I paid a premium thinking I was getting the whole master key). Otherwise, you can purchase a second hand lexus key (from australia) from someone, then buy a new blade and case off ebay for cheaply and then program it.