Transponder Door Keys - Suggest you save this info.

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Old 04 Oct 2003, 06:15 pm   #1 (permalink)
Sparkey
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Default Transponder Door Keys - Suggest you save this info.

TOYOTA TRANSPONDER KEYS:

I recently ingested the following information at some cost and time,
and thought some of you might find it of value. The saga started
because I'm the kind of guy that likes to have lots of spare keys for
my stuff.

Toyota mechanical locks (the tumbler part) can be locked/unlocked even
if the key you are using does not have a transponder chip buried in
the plastic handle. If you fear simply locking your key inside the
card, you can have a flat plain brass TR47 key cut at the hardware
store that will unlock the doors; it just won't let you start the
engine.

The 1998 thru 2004 Toyota Theft Deterrent Systems use a "transponder
reply chip" in the handle of the key that responds to an inquiry
signal sent when the key is inserted into the ignition switch. Each
key apparently has a random code burned into it, and the engine ECM
(Engine Control Module) in the car can store up to 7 of these codes.
The Toyota ECM's usually come with 1 or 2 key codes already programmed
into them, and for $50-75 you can buy another key (up to the Mid-03's)
that, by executing the correct programming sequence, will add the code
for the new key. The ECM must have at least one pre-programmed key in
order to work and program other keys. If you don't have even one key
that works, you 1) may be able to have the dealer originate a new
master key with his special dealer diagnostic equipment, or 2) junk
your ECM and pay big $'s for a new one (have no idea if either,
neither, or both of these options is actually correct). When I first
saw the following programming sequences I thought this must be a big
joke; I've seen the way many other transponder keys are programmed and
none of them come close to this foolishness!

98-01 CAMRY's: The programming sequence for adding another key
(Toyota key part number 89785-26020) to the Camry, according to the
ILCO key company catalog, and a Toyota maintenance manual I have seen,
is as follows: Simultaneously depress and release the brake and
accelerator pedals 1 time (one instruction kind of hints that you
should hold the pedals down while you insert the master key, the next
step). Insert the master key in the ignition, but do not turn it .
Within 15 seconds press & release the accelerator pedal 5 times. Then
within 20 seconds press & release the brake pedal 6 times. Within 10
seconds remove the master key, and insert the new key. Within 10
seconds press & release the accelerator 1 time. The security light
will stay off after 60 to 80 seconds indicating the re-programming was
successful. Remove the new key, and depress & release the brake pedal
1 time.

02 TO EARLY-03 CAMRY's: The programming sequence for adding another
key (Toyota key part number 89785-26020) to the Camry, according to
the key company catalog is as follows: Make sure all windows and
doors are closed, and insert the master key in the ignition. Cycle the
ignition key ON/OFF 5 times and leave the key in the lock. Open/Close
the driver side door 6 times. Remove the original key and insert the
new duplicate key, BUT DO NOT TURN THE KEY ON. The theft light will
stay off after 60 to 80 seconds indicating the re-programming was
successful. Do not laugh while executing this sequence.

MID-03 TO 2004 CAMRY's: Currently there is no programming sequence
(that I can find) that the customer can use. A new key is used
(Toyota key part number 89785-60160) that has a small letter "o"
stamped on the brass part of the key up near the handle. I'm told
that only the dealer can program in a new transponder code into the
ECM via the OBD (On Board Diagnostic) computer.

The ACE hardware here in Phoenix, and others, sell the non-"o" key for
much less than $75, but you have to program the ECM in the car
yourself. Camelback Toyota gouged me $150 to supply & program a key
for my Mid-03 Camry. Larry Miller Toyota sells the key for $75 and
programs it for free. Bell Road Toyota sells the key for $75, but I
haven't found out if they charge for programming (I think they do).
If the ECM is truly programmed through the OBD, then I think it is
only a matter of time before somebody like Pep Boys or Autozone will
do it too!

According to the ILCO catalog, all of the key numbers programmed into
a 98 to Early-03 ECM (other than the number of the key you are using)
can be deleted by using the following sequence: Simultaneously
depress & release the brake and accelerator pedals 1 time. Insert a
working key into the ignition but do not turn it. Within 15 seconds
depress & release the accelerator pedal 6 times. Within 20 seconds
depress & release the break pedal 7 times. The security light will
flash indicating that all key numbers, other than the one being used,
have been deleted from the ECM memory. Within 10 seconds remove the
key from the ignition switch. This is now the only key that will work.

If any of you have more/better information of the subject, please
speak up.
Thanks in advance. Sparkey



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Old 05 Oct 2003, 10:13 pm   #2 (permalink)
hlee
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Default Re: Transponder Door Keys - Suggest you save this info.

Great post!!! I went throught the same thing, I bought two new keys and
remotes for my 2003...you got it right. However, just a correction on this
part:

"The ECM must have at least one pre-programmed key in
order to work and program other keys. If you don't have even one key
that works, you 1) may be able to have the dealer originate a new
master key with his special dealer diagnostic equipment, or 2) junk
your ECM and pay big $'s for a new one (have no idea if either,
neither, or both of these options is actually correct).

When you purchase your car, they should give you a 5 digit number on your
key...all you have to do when you need a new key made is to provide this #
to the dealership and they'll cut you a new key. However, previously in the
2002 and earlier Camry's *I think*, what you wrote above is correct. I
guess they realized changing your ECU for a new key was stupid....




"Sparkey" <rduane@cox.net> wrote in message
news:uukunv48e5umr62sh7kl8bu04olklc4a44@4ax.com...
> TOYOTA TRANSPONDER KEYS:
>
> I recently ingested the following information at some cost and time,
> and thought some of you might find it of value. The saga started
> because I'm the kind of guy that likes to have lots of spare keys for
> my stuff.
>
> Toyota mechanical locks (the tumbler part) can be locked/unlocked even
> if the key you are using does not have a transponder chip buried in
> the plastic handle. If you fear simply locking your key inside the
> card, you can have a flat plain brass TR47 key cut at the hardware
> store that will unlock the doors; it just won't let you start the
> engine.
>
> The 1998 thru 2004 Toyota Theft Deterrent Systems use a "transponder
> reply chip" in the handle of the key that responds to an inquiry
> signal sent when the key is inserted into the ignition switch. Each
> key apparently has a random code burned into it, and the engine ECM
> (Engine Control Module) in the car can store up to 7 of these codes.
> The Toyota ECM's usually come with 1 or 2 key codes already programmed
> into them, and for $50-75 you can buy another key (up to the Mid-03's)
> that, by executing the correct programming sequence, will add the code
> for the new key. The ECM must have at least one pre-programmed key in
> order to work and program other keys. If you don't have even one key
> that works, you 1) may be able to have the dealer originate a new
> master key with his special dealer diagnostic equipment, or 2) junk
> your ECM and pay big $'s for a new one (have no idea if either,
> neither, or both of these options is actually correct). When I first
> saw the following programming sequences I thought this must be a big
> joke; I've seen the way many other transponder keys are programmed and
> none of them come close to this foolishness!
>
> 98-01 CAMRY's: The programming sequence for adding another key
> (Toyota key part number 89785-26020) to the Camry, according to the
> ILCO key company catalog, and a Toyota maintenance manual I have seen,
> is as follows: Simultaneously depress and release the brake and
> accelerator pedals 1 time (one instruction kind of hints that you
> should hold the pedals down while you insert the master key, the next
> step). Insert the master key in the ignition, but do not turn it .
> Within 15 seconds press & release the accelerator pedal 5 times. Then
> within 20 seconds press & release the brake pedal 6 times. Within 10
> seconds remove the master key, and insert the new key. Within 10
> seconds press & release the accelerator 1 time. The security light
> will stay off after 60 to 80 seconds indicating the re-programming was
> successful. Remove the new key, and depress & release the brake pedal
> 1 time.
>
> 02 TO EARLY-03 CAMRY's: The programming sequence for adding another
> key (Toyota key part number 89785-26020) to the Camry, according to
> the key company catalog is as follows: Make sure all windows and
> doors are closed, and insert the master key in the ignition. Cycle the
> ignition key ON/OFF 5 times and leave the key in the lock. Open/Close
> the driver side door 6 times. Remove the original key and insert the
> new duplicate key, BUT DO NOT TURN THE KEY ON. The theft light will
> stay off after 60 to 80 seconds indicating the re-programming was
> successful. Do not laugh while executing this sequence.
>
> MID-03 TO 2004 CAMRY's: Currently there is no programming sequence
> (that I can find) that the customer can use. A new key is used
> (Toyota key part number 89785-60160) that has a small letter "o"
> stamped on the brass part of the key up near the handle. I'm told
> that only the dealer can program in a new transponder code into the
> ECM via the OBD (On Board Diagnostic) computer.
>
> The ACE hardware here in Phoenix, and others, sell the non-"o" key for
> much less than $75, but you have to program the ECM in the car
> yourself. Camelback Toyota gouged me $150 to supply & program a key
> for my Mid-03 Camry. Larry Miller Toyota sells the key for $75 and
> programs it for free. Bell Road Toyota sells the key for $75, but I
> haven't found out if they charge for programming (I think they do).
> If the ECM is truly programmed through the OBD, then I think it is
> only a matter of time before somebody like Pep Boys or Autozone will
> do it too!
>
> According to the ILCO catalog, all of the key numbers programmed into
> a 98 to Early-03 ECM (other than the number of the key you are using)
> can be deleted by using the following sequence: Simultaneously
> depress & release the brake and accelerator pedals 1 time. Insert a
> working key into the ignition but do not turn it. Within 15 seconds
> depress & release the accelerator pedal 6 times. Within 20 seconds
> depress & release the break pedal 7 times. The security light will
> flash indicating that all key numbers, other than the one being used,
> have been deleted from the ECM memory. Within 10 seconds remove the
> key from the ignition switch. This is now the only key that will work.
>
> If any of you have more/better information of the subject, please
> speak up.
> Thanks in advance. Sparkey
>
>
>



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Old 06 Oct 2003, 09:45 am   #3 (permalink)
MDT Tech®
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Default Re: Transponder Door Keys - Suggest you save this info.

hlee wrote:

> Great post!!! I went throught the same thing, I bought two new keys and
> remotes for my 2003...you got it right. However, just a correction on this
> part:
>
> "The ECM must have at least one pre-programmed key in
> order to work and program other keys. If you don't have even one key
> that works, you 1) may be able to have the dealer originate a new
> master key with his special dealer diagnostic equipment, or 2) junk
> your ECM and pay big $'s for a new one (have no idea if either,
> neither, or both of these options is actually correct).
>
> When you purchase your car, they should give you a 5 digit number on your
> key...all you have to do when you need a new key made is to provide this #
> to the dealership and they'll cut you a new key. However, previously in the
> 2002 and earlier Camry's *I think*, what you wrote above is correct. I
> guess they realized changing your ECU for a new key was stupid....
>
>


The key code will only get you a ket cut, no transponder program. Oh,
yeah, you will need one "master: key to program another key, having only
the grey one is no good. You can not program another key with the "sub
key". There is a break, I think its 2001 or so, we can with the special
equipment, crack the ECM code and make a key, prior was a new ECM.

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Old 08 Oct 2003, 08:38 am   #4 (permalink)
Ken
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Default Re: Transponder Door Keys - Limits

I just bought a new 2003 XLE. They're telling me there's a limit to the
number of transponder keys I can have. Is that true? It doesn't make
sense. Only one key at a time is in use, so how would the car know how many
keys I have?

Ken


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Old 08 Oct 2003, 09:00 am   #5 (permalink)
C. E. White
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Default Re: Transponder Door Keys - Limits

The computer only has so many slots for learning key codes. You can have as many
as you want, but only as many as the the computer can remember will actually
work.

Ed

Ken wrote:

> I just bought a new 2003 XLE. They're telling me there's a limit to the
> number of transponder keys I can have. Is that true? It doesn't make
> sense. Only one key at a time is in use, so how would the car know how many
> keys I have?
>
> Ken


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Old 08 Oct 2003, 07:40 pm   #6 (permalink)
Sparkey
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Default Re: Transponder Door Keys - Limits

I think the ECM (Engine Control Module holds 7 transponder codes, so
you should be able to have that many keys. Toyota put two engines in
the 2003's. If you have the early engine you can buy a transponder key
at some ACE hardwares for a lot less $; if you have the later engine
that has a key with a small letter "o" stamped in the brass up near
the plastic handle you MUST go to a dealer to get it programmed in via
an electrical connection via the DMC (Diagnostic Maintenance
Computer).

On Wed, 08 Oct 2003 13:38:19 GMT, "Ken" <trackref@optonline.net>
wrote:

>I just bought a new 2003 XLE. They're telling me there's a limit to the
>number of transponder keys I can have. Is that true? It doesn't make
>sense. Only one key at a time is in use, so how would the car know how many
>keys I have?
>
>Ken
>


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Old 08 Oct 2003, 09:32 pm   #7 (permalink)
MDT Tech®
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Default Re: Transponder Door Keys - Limits

Ken wrote:

> I just bought a new 2003 XLE. They're telling me there's a limit to the
> number of transponder keys I can have. Is that true? It doesn't make
> sense. Only one key at a time is in use, so how would the car know how many
> keys I have?
>
> Ken
>
>

Same way it knows the "key". There is a limit of 8 I think. You can add
a 9th, but the first will be kicked out of the system

--




Terrorist, kill them, its cheaper than trying to get them to like you!

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Old 08 Oct 2003, 09:51 pm   #8 (permalink)
Ken
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Default Re: Transponder Door Keys - Limits

Today I was at the Dealer, and a local locksmith who pulled out a manual and
showed it to me, tell me that only three keys can be made and active for the
vehicle. So if I want more than the 2 masters and the one valet, I'm out of
luck. WOW!

Ken

"MDT Tech®" <ssauer4O@repairman.com> wrote in message
news:gN3hb.3655$dn6.3353@newsread4.news.pas.earthl ink.net...
> Ken wrote:
>
> > I just bought a new 2003 XLE. They're telling me there's a limit to the
> > number of transponder keys I can have. Is that true? It doesn't make
> > sense. Only one key at a time is in use, so how would the car know how

many
> > keys I have?
> >
> > Ken
> >
> >

> Same way it knows the "key". There is a limit of 8 I think. You can add
> a 9th, but the first will be kicked out of the system



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Old 09 Oct 2003, 11:59 am   #9 (permalink)
Ken
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Default Re: Transponder Door Keys - Limits

Went back to Dealer Service today, and the Service Manager researched more
thoroughly. I am allowed up to 7 keys. The price for 3 additional masters
and the reprogramming of the onboard computer is $280. Seems a little high.

Ken

"Ken" <trackref@optonline.net> wrote in message
news:934hb.16813$Ri4.5810380@news4.srv.hcvlny.cv.n et...
> Today I was at the Dealer, and a local locksmith who pulled out a manual

and
> showed it to me, tell me that only three keys can be made and active for

the
> vehicle. So if I want more than the 2 masters and the one valet, I'm out

of
> luck. WOW!
>
> Ken



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Old 09 Oct 2003, 03:12 pm   #10 (permalink)
Sparkey
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Default Re: Transponder Door Keys - Limits

Do the keys that came with the car have a little "o" stamped in the
brass up near the plastic handle? If so, you MUST get the spares from
the dealer (however different dealers charge different prices).

On Thu, 09 Oct 2003 16:59:17 GMT, "Ken" <trackref@optonline.net>
wrote:

>Went back to Dealer Service today, and the Service Manager researched more
>thoroughly. I am allowed up to 7 keys. The price for 3 additional masters
>and the reprogramming of the onboard computer is $280. Seems a little high.
>
>Ken
>
>"Ken" <trackref@optonline.net> wrote in message
>news:934hb.16813$Ri4.5810380@news4.srv.hcvlny.cv. net...
>> Today I was at the Dealer, and a local locksmith who pulled out a manual

>and
>> showed it to me, tell me that only three keys can be made and active for

>the
>> vehicle. So if I want more than the 2 masters and the one valet, I'm out

>of
>> luck. WOW!
>>
>> Ken

>


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