2005 Toyota Tacoma Keys won't Program - All Keys Lost

Travis Mobile Technician Wisconsin Posted   Latest  
Resolved
Programming
Security
2005 Toyota Tacoma 4.0L (1GR-FE) 4-spd (A340E)
Crank / No Start

I have a 2005 Toyota Tacoma I am working on. Did an All Keys Lost and had two new keys cut. Ended up getting one original key but it was dropped off after the All Keys Lost was performed. Theft light stays on solid. Immobilizer shows 0 keys learned. I can command security light on and off. I have tried the relearn with my Snapon Versus, Autel Maxisys Elite, Autel IM508, and Launch Diagun V. 

What am I missing?

I start the key learn, insert one key 5 seconds not turning it on, take out and insert a second, insert a third and put first back in and cycle 5 times. I have down the same but with two keys. I have tried doing the same procedure turning keys to on for 5 seconds. I have tried one key and cycling 5 times. All tools show a slightly different procedure and youtube shows even more. Just looking for pointers to try tomorrow. 

Thank you. 

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Juan Owner
Indiana
Juan
 

Have you tired through eeprom?

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Travis Mobile Technician
Wisconsin
Travis
 

I haven't went that deep yet since nothing really led me that direction. May have to get my feet wet.

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Juan Owner
Indiana
Juan
 

Normally that what I do. Read the file and save the keys info. Match it with what he customer has. The ones they dont have I just swap it out with a new key id. Starts right away or use xhorse super chips and copy one of the working keys

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Gera Technician
Arizona
Gera
 

It could be a couple of things. I know that a passcode is required to complete the immobilizer reset procedure. that could be your problem. I have only successfully performed this with toyota techstream. I'm sure someone will chime in with the correct answer for this portion. Another problem could be with the ignition cylinder. With the drivers door open stick the key in the ignition and let…

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Interesting
Travis Mobile Technician
Wisconsin
Travis
 

I believe the door does ding but will recheck. Thanks for the passcode idea as well.

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Paul Owner/Technician
California
Paul
 

Good tip. The key in switch is necessary, and Toyota likes the driver’s door open for seed resets.

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Paul Owner/Technician
California
Paul
 

Are you waiting 75 seconds with the new key in the ignition with the key off? The Techstream has a countdown, but many of the aftermarket tools don’t. Watch the security light. When it goes out the programming is done.

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Travis Mobile Technician
Wisconsin
Travis
 

All my tools say 5 seconds? I will try that.

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Paul Owner/Technician
California
Paul
 

For a normal programming with an existing key it will take about 75 seconds. For an all keys lost there’s a 16 minute lockout. Connect a power supply if it’s the latter since that’s a pretty long time for KOEO.

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Ricardo Diagnostician
Michigan
Ricardo
 

I had the same problem but with the im608 so exited the immo section went to diag and did the immo code reset , after the 16min wait all keys programmed fine

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Travis Mobile Technician
Wisconsin
Travis
 

I will try this as well, thank you. I thought these older cars were suppose to be easier!! lol

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Paul Owner/Technician
California
Paul
 

Nah, newer is new, but usually easier. … Toyotas you’d need to replace the immobilizer ECU or pull the immobilizer ECU and flash the EEPROM. There’s always a delay until aftermarket solutions crack security, but thanks to NASTF, we have access to newer cars as well.

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Travis Mobile Technician
Wisconsin
Travis Update
 

I also tried the procedure to short terminals CG and TC in the OBD2 connector for 30 mins and inserting key on in ignition per Alldata. I believe this is to learn the ECM but it didn't help.

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Paul Owner/Technician
California
Paul
 

TC and CG are necessary after replacement an ECM with a used unit, but not necessary for a seed reset.

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Travis Mobile Technician
Wisconsin
Travis Update
 

Here is a video I found showing the exact procedure I am told to follow even though it is for a different year range and model. Posting just to clarify what I am seeing, only difference from the video is my light stays solid and nothing learns. youtube​.​com/watch?v=VR8MW8…

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Paul Owner/Technician
California
Paul
   

Hmm. That video is very different from my experience. I only use the Toyota Techstream and the AutoProPad. There has never been a requirement to register more than one key after a seed reset, but obviously there are different markets and different tools, so the procedure in the video may be valid for his situation. Also, I’ve never needed to erase all keys before a seed reset, since a seed reset…

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Travis Mobile Technician
Wisconsin
Travis
 

Yes, he selected USA. I'd hate to pay for a Techstream subscription if it doesn't help but well worth it if it makes this easier. Can I get into the immobilizer with Techstream and a J2534? Alldata didn't really lead me towards Techstream either but might be worth checking out.

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Paul Owner/Technician
California
Paul
 

Techstream is one of the best values in OE scanners in my opinion. I think the package with the VCI and the software (and TIS) is $1500. The renewal after a year is about $1200, so the VCI isn’t very expensive. You’ll need a locksmith license ( for all keys lost only), which is a bit of a pain, but worth getting in my opinion. Tje aftermarket can’t handle all cars, and nothing is worse than a…

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Adrian Mobile Technician
California
Adrian
 

Make sure you have 2 master keys and 1 valet key

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Travis Mobile Technician
Wisconsin
Travis
 

I will use my IM508 and 400XP to try and read keys tomorrow.

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James Owner/Technician
Massachusetts
James
 

I was always under the impression that without a master key programmed only Toyota can program the keys. I have tried to add keys to Toyotas but was never successful without a master present even though I had access to a programmed valet key.

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Paul Owner/Technician
California
Paul
   

You're correct, mostly. Only a master key can be used to register new keys (without a reset). Dealers can do immobilizer resets, but so can independent repair shops and locksmiths. If you get a credential, you can perform immobilizer resets with the factory scan tool (Techstream). Check at NASFT for more information on how to qualify. However, there are many aftermarket solutions that completely…

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Paul Owner/Technician
Colorado
Paul
 

As others have said, many tools bypass the Passcode seed reset and/or 16 minute wait and DO NOT require NAST membership for Toyota/Lexus models from around 2004 to around 2019 when you have an AKL (all keys lost) or no master key situation. If your tool will not bypass the passcode request, you can purchase passcodes from a site like this: pin-online​.​net/passcode Note; Earlier…

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Bill Owner/Technician
Michigan
Bill
 

Make sure drivers door is open and vehicle is unlocked. Autel IM508 should be able to do the procedure.

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Grant Technician
Illinois
Grant
 

This vehicle has the ability to perform what Toyota calls “Immobilizer Reset”….which is the ability to clear all key ID's and register a new key electronically without an ECU replacement or board level work. See TSB's T-SB-0043-14 Rev2 and T-SB-0057-18 Rev1 to familiarize yourself with the process. These TSB's are written for Toyota dealers and you may find an after market workaround that is not…

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Arsalan Owner/Technician
District of Columbia
Arsalan
 

In this situation since all keys are lost you will have to perform QUICK RESET IMMOBILIZER before keys can be accepted.

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Travis Mobile Technician
Wisconsin
Travis Resolution
   

THIS HAS BEEN SOLVED Did a battery disconnect and after that the theft light when from steady on to the normal flashing. Two of the three keys I was trying to learn the day before were already programmed in as masters. Was able to add the third key in which programmed in as a master as well, not a slave. It didn't learn right away though, had to do the same procedure from two different add key…

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