wife lost remote master key chip
08-01-14, 08:14 AM
#16
Thanks all!!
08-01-14, 09:06 AM
#17
Great! I don't see why it wouldn't work, should send the same codes to the anti theft system as the key fob you lost did, hopefully it will work, I would try it on my Rx but my sister used it to go to work today 
08-01-14, 10:56 AM
#18
I can help shed some light, recently been down this road. Lexus got in a bit of trouble in the late 90's over this master key stuff. Lost a bunch of lawsuits I guess.
The FLAT KEY you have. Place the metal key part in the ignition but don't turn it.
Observe the security light blinking.
Put the chip part against the metal key, by the ignition.
If the blinking light GOES OUT IMMEDIATELY, chip is programmed as a master. New keys / FOB can be made from it. If the light turns solid for a second or 2, it's not a master.
Good luck. My 2003 was programmed as a master. I have made new keys from it.
The FLAT KEY you have. Place the metal key part in the ignition but don't turn it.
Observe the security light blinking.
Put the chip part against the metal key, by the ignition.
If the blinking light GOES OUT IMMEDIATELY, chip is programmed as a master. New keys / FOB can be made from it. If the light turns solid for a second or 2, it's not a master.
Good luck. My 2003 was programmed as a master. I have made new keys from it.
In contrast, when using a gray/valet key, the security light goes from blinking to solid light for a second or two, then off.
I was also curious to see what happens if you had a key but no chip or defective/dead battery, when you just insert the flat key and turn the ignition on everything looks normal (dash lights go on) and it even lets you crank the engine but it does not run. Nice to know in case someone runs into a defective chip/dead battery situation.
Salim thanks for your reply too, I missed that last night, and as our moderator may I suggest we post this info where appropriate, or an actual warning/notice to people who only have one master key to get a second one made because as far as I know its very very expensive to do this without a master key.
I'm assuming anything older than 00 only have flat keys so they do not actually have a chipped wallet/card keys that the 02 and 03 have. We don't have info on 01's.
Thanks all!
Enz
08-01-14, 02:06 PM
#19
Good news! My wife's 2002 Coach Ed. wallet/card key is a MASTER key! Jim's post above is right on! To further identify a master key, on one side it will have the key code engraved and on the other side it will have instructions on "How to start engine"
In contrast, when using a gray/valet key, the security light goes from blinking to solid light for a second or two, then off.
I was also curious to see what happens if you had a key but no chip or defective/dead battery, when you just insert the flat key and turn the ignition on everything looks normal (dash lights go on) and it even lets you crank the engine but it does not run. Nice to know in case someone runs into a defective chip/dead battery situation.
Salim thanks for your reply too, I missed that last night, and as our moderator may I suggest we post this info where appropriate, or an actual warning/notice to people who only have one master key to get a second one made because as far as I know its very very expensive to do this without a master key.
I'm assuming anything older than 00 only have flat keys so they do not actually have a chipped wallet/card keys that the 02 and 03 have. We don't have info on 01's.
Thanks all!
Enz
In contrast, when using a gray/valet key, the security light goes from blinking to solid light for a second or two, then off.
I was also curious to see what happens if you had a key but no chip or defective/dead battery, when you just insert the flat key and turn the ignition on everything looks normal (dash lights go on) and it even lets you crank the engine but it does not run. Nice to know in case someone runs into a defective chip/dead battery situation.
Salim thanks for your reply too, I missed that last night, and as our moderator may I suggest we post this info where appropriate, or an actual warning/notice to people who only have one master key to get a second one made because as far as I know its very very expensive to do this without a master key.
I'm assuming anything older than 00 only have flat keys so they do not actually have a chipped wallet/card keys that the 02 and 03 have. We don't have info on 01's.
Thanks all!
Enz
08-01-14, 03:30 PM
#20
Moderator
Enz:
The key that broke, you can recover the slug and use it with any flat key and it will be recognized as what ever key it was before.
There is Key-blade (un-cut). Make sure you have it cut for NOT the valet key.
Slug in the key which can be unregistered. You would need a master key to register this slug
electronics in the key. You will need to program it to operate remote functions.
There are instructions to do all of the above (except you need duplicating facility for cutting the key).
Salim
The key that broke, you can recover the slug and use it with any flat key and it will be recognized as what ever key it was before.
There is Key-blade (un-cut). Make sure you have it cut for NOT the valet key.
Slug in the key which can be unregistered. You would need a master key to register this slug
electronics in the key. You will need to program it to operate remote functions.
There are instructions to do all of the above (except you need duplicating facility for cutting the key).
Salim
08-01-14, 10:51 PM
#21
The saga continues... now alarm keeps going off
Enz:
The key that broke, you can recover the slug and use it with any flat key and it will be recognized as what ever key it was before.
There is Key-blade (un-cut). Make sure you have it cut for NOT the valet key.
Slug in the key which can be unregistered. You would need a master key to register this slug
electronics in the key. You will need to program it to operate remote functions.
There are instructions to do all of the above (except you need duplicating facility for cutting the key).
Salim
The key that broke, you can recover the slug and use it with any flat key and it will be recognized as what ever key it was before.
There is Key-blade (un-cut). Make sure you have it cut for NOT the valet key.
Slug in the key which can be unregistered. You would need a master key to register this slug
electronics in the key. You will need to program it to operate remote functions.
There are instructions to do all of the above (except you need duplicating facility for cutting the key).
Salim
Now my problem is that the alarm keeps going off! I saw this post by hypervish below but I don't have the chip/slug/electronics on my remote master key anymore. I tried it but I left my door open (not sure if that matters) and of course without the chip on my master key I didn't think the procedure below would work.
I think I messed things up when I tried starting the car earlier with the remote key sans chips.
Any suggestions? Maybe using the valet key?
Thx!!
Per Hypervish
The procedure I use is:
Insert master key (non-remote master) into driver's side door.
Remove key.
Insert master remote key into driver's side door.
Remove key.
Insert master key (non-remote master) into ignition.
Remove key.
Insert master remote key into ignition.
Remove key.
08-02-14, 04:48 AM
#22
Lexus Test Driver
Salim the slug/electronics is lost.
Now my problem is that the alarm keeps going off! I saw this post by hypervish below but I don't have the chip/slug/electronics on my remote master key anymore. I tried it but I left my door open (not sure if that matters) and of course without the chip on my master key I didn't think the procedure below would work.
I think I messed things up when I tried starting the car earlier with the remote key sans chips.
Any suggestions? Maybe using the valet key?
Thx!!
Per Hypervish
The procedure I use is:
Insert master key (non-remote master) into driver's side door.
Remove key.
Insert master remote key into driver's side door.
Remove key.
Insert master key (non-remote master) into ignition.
Remove key.
Insert master remote key into ignition.
Remove key.
Now my problem is that the alarm keeps going off! I saw this post by hypervish below but I don't have the chip/slug/electronics on my remote master key anymore. I tried it but I left my door open (not sure if that matters) and of course without the chip on my master key I didn't think the procedure below would work.
I think I messed things up when I tried starting the car earlier with the remote key sans chips.
Any suggestions? Maybe using the valet key?
Thx!!
Per Hypervish
The procedure I use is:
Insert master key (non-remote master) into driver's side door.
Remove key.
Insert master remote key into driver's side door.
Remove key.
Insert master key (non-remote master) into ignition.
Remove key.
Insert master remote key into ignition.
Remove key.
I have to use this procedure each time I disconnect my battery, or else my alarm will randomly go off.
08-02-14, 08:35 AM
#23
So this should work even without the chip on my remote master?
Thx!
08-02-14, 09:32 AM
#24
Thx!
08-02-14, 12:08 PM
#25
found the chip! alarm reset done!
Well, I decided to wash my wife's car today and we found the chip underneath the passenger seat. I should have known not to believe my wife when she said she looked for it. :-)
Alarm is reset!
Do you guys trust the aftermarket shells on Amazon and Fleabay?
Thx!
Alarm is reset!
Do you guys trust the aftermarket shells on Amazon and Fleabay?
Thx!
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