[upallnight]

How did you clear all the fobs in the car computer? Thanks.

Sorry for the late reply. There's an option to delete all fobs in the program.

 

[upallnight]

Here's how to use techstream to program a fob

 

[dtomas95]

Sorry for the late reply. There's an option to delete all fobs in the program.

An important thing I learned is the the van's computer has a max # of key spots to program against. I went to the Toyota Dealership and they cleared the computer which immediately allowed my new fob to program against.

 

[Frank H]

I have 2011Toyota Sienna. I have a "G" key transponder and tried all that is on Forum but non help. I need help. Also do you have to replace engine oil every 5000 miles when engine light comes on or reset and wait till 10,000 miles?

 

[irlandes]

I have 2011Toyota Sienna. I have a "G" key transponder and tried all that is on Forum but non help. I need help. Also do you have to replace engine oil every 5000 miles when engine light comes on or reset and wait till 10,000 miles?

Send a sample of oil to Blackstone labs, and they will tell you. Unless you do mostly highway driving, you probably should replace the oil anyway. Oil costs much less than a new motor.

 

[icucicu]

I programmed a new key, and it worked great until it stopped being recognized. I thought the chip went bad and bought 2 new keys. When trying to program any of the 3 new keys, I get into programming mode, insert the new key and get this pattern blinking:

Anyone know what this pattern means?

 

[fibber2]

I can only guess here, but many systems have a 4 key maximum. If you want to add more, you might have to begin by wiping out some of the keys no longer in your possession or those not working. You probably need Techstream to do that.

 

[BentWookiee]

There has to be a cool ignition trick to clear the keys. I’m still shocked that method works to program

 

[icucicu]

I can only guess here, but many systems have a 4 key maximum. If you want to add more, you might have to begin by wiping out some of the keys no longer in your possession or those not working. You probably need Techstream to do that.

Could be, however, why would the keys I added 1 month ago suddenly stop working? I can't figure that out.

There has to be a cool ignition trick to clear the keys. I’m still shocked that method works to program

I just tried the following below to clear keys, and it worked to clear the keys. However, only 1 of my 4 new keys is detected, so I think its just a case of china crap chips.

To erase the keys:
1) Insert a master key into the ignition and remove it 5 times. Insert it a 6th time and leave it in.
2) Open and close the door 7 times. The security light will come on for about a second.
3) Remove the key immediately. I was unsuccessful several times because I hesitated for a moment.

 

[roy5356]

Which Techstream Version Works?

I've tried several versions using Win7 pro fresh install. Both 32bit and 64bit. (Lot a clonezilla usage.) Tried with MVCI cable and vxdiag nano.
I never get the utility button when I go into a mode and some modes freeze Techstream.

For those using the cable, never update the firmware. It will brick the cable. The FTDI cloned chip the china guys use only works with firmware 1.4.1. A user on MHH Auto explains how to unbrick a firmware upgrade, but it didn't work for me.

I have a 2008 Sienna LE

 

[roy5356]

Which Techstream Version Works?

I've tried several versions using Win7 pro fresh install. Both 32bit and 64bit. (Lot a clonezilla usage.) Tried with MVCI cable and vxdiag nano.
I never get the utility button when I go into a mode and some modes freeze Techstream.

For those using the cable, never update the firmware. It will brick the cable. The FTDI cloned chip the china guys use only works with firmware 1.4.1. A user on MHH Auto explains how to unbrick a firmware upgrade, but it didn't work for me.

I have a 2008 Sienna LE

A friend let me use his laptop with Win7 32bit and Techstream 7.20.041. It worked great for programming a new FOB. It would have allowed me to make a new key, but I decided that I would rather use genuine Toyota keys rather than the ones I got off amazon. Unlike FOBs, you are only allowed 4 keys before you have to have the passcode reset. This has to be done at the dealer. If the van has had less than 4 keys programmed, I don't want to use some clone key and then have it fail. My original key is 13 years old and still works. Trying to save $40 now could end up costing me hundreds later.
Does anyone know of a way to find out how many keys have been programmed. I've watched videos on youtube and unlike the FOB mode, the key programming mode doesn't say how many keys have been made.
When I do an immobiliser diag test with Techstream I get this
Master Key Reg
Transponder S-code 0
Transponder M-code 2
Reg space code full No

Thanks for any help

 

[LeeMarkus]

A locksmith can surely program a transponder and their charges are pretty much less than the dealership.

 

[dashan]

Thanks to everyone contributing in the discussion. I lost my key and successfully programmed a replacement as a new master key. Just to add another data point showing what works where, below is the info of the my vehicle, key, & programming steps.

Vehicle: 2008 Sienna LE (FWD)
Vehicle Manufacture date & location: 12/07 Indiana

Due to the urgency, I did not shop in the Internet. I bought the key from a local dealer for $48.50. The price includes cutting the key (but not programming). Dealer wants $150 to program the key which I declined. I personally do not mind on the $48.50 dealer pricing of the key as:
1. I know I got a genuine OE key (Toyota quality part).
2. Dealer freshly cut the key using data retrieved from vehicle VIN# (not duplicated from my existing somewhat worn-out key).
3. I got it the same day.

Information/identification of the key the dealer sold to me:
1. Toyota P/N: 89785-08020
2. Description: TRANSMITTER, KEY MAST
3. Has small dimple on the blade (per info found in the Internet, this is an identification for having 4D-67 chip; the right application for 2004-2010 Sienna and few other Toyotas).



Using the programming steps as shown in Youtube video posted by ovnisf in post #33 http://www.siennachat.com/forum/64-...-transponder-key-post1390689.html#post1390689, I programmed the new key on dealer parking lot; and at the end of the programming (step 6 below), I kept the engine running & drove home using the new key.


Programming steps:
1) Sat in the van driver seat with all doors closed but unlocked.
2) Inserted the original master key into the key cylinder (in and out) 5 times and left it there.
3) Opened and closed driver side door 6 times; left door closed on 6th time.
4) Removed master key from key cylinder. The red immobilizer/security light continuously lit.
5) Inserted the new key. The red engine immobilizer/security light blinked for a little over a minute, and then went out. Programming was pretty much completed as the light stopped blinking.
6) Started the van with the new key to confirm successful programming.

I noticed on earlier post by others that some of the steps (turn new key to ON during programming (might be part of step 5), and start w/ original master key (between steps 5&6)) are not needed.


Additional info I got:

When I asked how many keys total can be programmed to the vehicle, the Toyota part associate that helped me said the vehicle can only have 4 key max at a time.

Info copied from ovnisf Youtube page

:
Video shows steps on how to program your 4D Toyota chip key. This procedure does not work for all 4D immobilizer equipped cars. The models this has been verified to work on.
2004 - 2010 Sienna
2003 - 2009 4Runner
2004 - 2006 Camry
2004 - 2008 Solara
2004 - 2007 Highlander
2005 - 2005 Matrix
2005 - 2005 Corolla
2005 - 2010 tC
2008 - 2008 FJ Cruiser

If you don't see your model/year, you will require a locksmith/dealer. If your model is listed but you only have a valet key(gray color) you will also need a locksmith/dealer

Im not responsible if you can't get into programming mode.

Self Program method NOT working on:
2007+ Camry
2007+ Matrix
2007+ Avalon
2006+ Corolla
2007+ Tundra
2005+ Tacoma

This method worked for me for a 2006 Sienna. Thanks