2008 Toyota Camry Hybrid All Keys Lost. Any help/advice?

[TokyoJoe]

NOOB alert!: Removed the Transponder (Anti-theft) ECU from behind the dash (89784-06011) and desoldered the 93C46 IC and read it's contents and saved that dump file. I have no idea of what I'm looking at as far as what to change to make it a Virgin file. Also, is this the only ECU that needs virginizing? I see other posts referencing the Smart key ECU needing a reset, as well. I have a new OEM Smart key to add as the Master key but I don't know how to get there. Any applicable direction or information? Thanks!

[Spiritech]

Just use OBD reset available for this model in many tools. If no reset for whatever reason remove smart ecu and read 93c66/86, write a smart key(even used will be fine for this) direct to the box and use OEM key learning to add a new or reset used smart key to the car properly.

OBD tools include Smart Pro, AVDI, Autel and many others.

To do by EEPROM method you will need Tango or tmpro2 etc to write the smart key to the dump for you if you don't know how they're stored.

Doing by virginising both smart and id box ecus is probably the hardest way to do this car.

[alsa75]

TokyoJoe,

Why did you remove the ECU? You can reset it via OBD2, and it will take 14-16 minutes, and after resetting, adding a key is extremely easy.
Why did you unsolder the eeprom 93C46 Any programmer can read that eeprom without removing it.

[TokyoJoe]

Sorry I'm not a locksmith and was told to post my questions in this forum and not in IMMO.
Because the Camry would not even turn on to Accessory mode, I was told that I would need new ECUs and new keys to the tune of 1200usd. Local locksmith, only 2 even close to me wanted 500$.
Bottom line is short on funds but long on time...
I don't have a Londsdor, IM608, or vvdi, ect. Just a cheap programmer that had a chip clip that wouldn't fit over the IC due to the harness connector mount location.
Appreciate your advice if you have any!

[Spiritech]

Even if you virginise everything you still need a diagnostic tool capable of getting security access to program keys to learn the smart keys, and if you've got that it probably will reset the system by OBD anyway so why waste time virginising modules. This isn't like the bladed cars where you get an auto registration mode.

I suggest you are probably in over your head here mate and just need to pay a professional.

[TokyoJoe]

@Spiritech: I just acquired Tango software and have Techstream v17. Familiar with adding key when Master is available, however never had to do an AKL.

So, you're saying I could have done a reset in Techstream utility for the IMMO ecu (without a Passcode) then used Tango to write the new key I purchased to the Smart key ECU?

Gosh, that would have been soo much easier.

I'll use what advice you have laid out and try to move forward this weekend. If no joy then I will bite the bullet and pony up for the pro. Much obliged for your help!

[askkey]

@Spiritech: I just acquired Tango and have Techstream v17. Familiar with adding key when Master is available, however never had to do an AKL.

So, you're saying I could have done a reset in Techstream utility for the IMMO ecu (without a Passcode) then used Tango to write the new key I purchased to the Smart key ECU?

Gosh, that would have been soo much easier.

I'll use what advice you have laid out and try to move forward this weekend. If no joy then I will bite the bullet and pony up for the pro. Much obliged for your help!

I am not sure Techstream supports OBD reset of the modules without a master key. For that you will need a differtent aftermarket programmer like AVDI.
Also I am not sure if the remoteon your key will work if you add it directly to the ECU EEPROM via an IC programmer. I do not use Tango for Toyota but with my tools only the emergency transponder part it written. For anything else you will need to program a key via the OBD method.

As Spiritech said, the easiest method with your tools it to add a transponder to the Smart ECU data to act as a master key, and then when you can give authorization with said transponder you can add a complete key via OBD key learning.

Other methods include:
- Reseting the Smart key ECU via OBD and then programing a key in the same process (need a tool capable of resetting via OBD)
- Or using an emulator to emulate a master key and add a new key (need a tool capable of reading the data from the ECU and emulating it)
- Or the "service" procedure where you put new or renewed ID BOX ECU and Smart key ECU and program two new keys (sometimes one key) and sync the moduled by bridging 2 pins on the OBD port for 15 minutes.

The last one it the process the dealers use and in my opinion it is the most time consuming one.

If you end up needing to reset the EEPROM data of any ECU to virginize them you can post them here and I will send you the reset data.

[TokyoJoe]

@Askkey: Thanks for further clarification on what I need to do! I am reviewing what devices that I can afford to get this resolved. I will solicit DK help as I narrow down my options.

It's very humbling to realize how ignorant I am in pulling the dash out and having to disconnect the AC system and drain the coolant to get to that Transponder ECU. And it will still have to go back together when it's solved.

What tool is used to read the Smart key's information?

[TokyoJoe]

This isn't like the bladed cars where you get an auto registration mode.

Does bladed cars in reference to the Proximity feature or the actual key blade in my remote?

[TokyoJoe]

... Or the "service" procedure where you put new or renewed ID BOX ECU and Smart key ECU and program two new keys (sometimes one key) and sync the moduled by bridging 2 pins on the OBD port for 15 minutes.
The last one it the process the dealers use and in my opinion it is the most time consuming one.

I believe my best option given my circumstances is this method. I'm already in too deep, in more ways than imagined.
I have pulled the Smart key ECU and will read the IC. Once I discover which chip I have (either c66 or c86), I will search here for a virgin dump file and write it. The ID Box (=Transponder key ECU mentioned in #1 post) has been loaded with a virgin dump file, yesterday.

If I'm understanding Askkey and Spiritech's advice, once both ECUs are reset/virgin, I can employ jumpering OBD DLC3 connector pins 4 and 13 for 16 to 30mins and they should auto register to the new Smart key. Or have I misunderstood your direction (given I don't have the necessary tools to do it quickly/effectively)?

[askkey]

@Ashkey: Thanks for further clarification on what I need to do! I am reviewing what devices that I can afford to get this resolved. I will solicit DK help as I narrow down my options.

It's very humbling to realize how ignorant I am in pulling the dash out and having to disconnect the AC system and drain the coolant to get to that Transponder ECU. And it will still have to go back together when it's solved.

What tool is used to read the Smart key's information?

Yes, you jumped the gun a little in dissasembling the car before doing the full research, but think of it as a learning experience

You will need to be a bit more specific in what you mean by "read smart key info". If you want to read the transponder data from the key then you will need a RF key reader like VVDI Key tool Mini. If you want to read the key data from the Immo EEPROM then Tango should be able to do it once you load the dump read with your IC programmer.

Does bladed cars in reference to the Proximity feature or the actual key blade in my remote?

He means the cars without smart keys that have a regular bladed key and an ignition lock instead of a start button are different in the procedure for All key lost key programming and different procedure steps apply.

[TokyoJoe]

@Askkey: Thanks again! Thanks for teaching and for your patience, too.

I have seen posts that listed 4 lines of code for a Smart key (P1 that is two digits, Px with two more digits, 3rd and 4th lines had more information) and wondered what programs generated that. But even that may not be necessary if both ECUs are virginized and Auto Registration is activated by OBD jumpering as it is a Prox key Camry Hybrid with the Start/Stop button and not a barrell cylinder style.

I will followup and may take you up on your help with ECU programs. Crossing my fingers!

[askkey]

I believe my best option given my circumstances is this method. I'm already in too deep, in more ways than imagined.
I have pulled the Smart key ECU and will read the IC. Once I discover which chip I have (either c66 or c86), I will search here for a virgin dump file and write it. The ID Box (=Transponder key ECU mentioned in #1 post) has been loaded with a virgin dump file, yesterday.

If I'm understanding Ashkey and Spiritech's advice, once both ECUs are reset/virgin, I can employ jumpering OBD DLC3 connector pins 4 and 13 for 16 to 30mins and they should auto register to the new Smart key. Or have I misunderstood your direction (given I don't have the necessary tools to do it quickly/effectively)?

Make sure the dump you found on the forum is for the correct module type by thecking the P/N.

As I said, if necessary you can post the dumps on the forum and I or someone else can reset them for you.

Once the modules are reset you will still need to program a key (sometimes 2 keys) over OBD with a OBD tool. Techstream should be able to do it.
The only reason you are resetting the modules is so you can program a key without the need for a working master key for authorization. Once the modules are reset there are no keys in their memory and a master key is not necessary to program the keys in this state.
Then once you program a key you will turn the ignition on and then jump the OBD pins and wait up to 30 min. so the modules sync up.

Also make sure you have a correct new or reset used smart key for your vehicle. Not all Toyota smart keys are interchangable. Check the fccid.

[askkey]

@Ashkey: Thanks again! Thanks for teaching and for your patience, too.

I have seen posts that listed 4 lines of code for a Smart key (P1 that is two digits, Px with two more digits, 3rd and 4th lines had more information) and wondered what programs generated that. But even that may not be necessary if both ECUs are virginized and Auto Registration is activated by OBD jumpering as it is a Prox key Camry Hybrid with the Start/Stop button and not a barrell cylinder style.

I will followup and may take you up on your help with ECU programs. Crossing my fingers!

The thing you are referring to as 4 lines of code are the Transponder pages in hex transmitted to a RF key reader via RFID comm. You can read them with a RF reader like VVDI key tool Mini. For your model you will look at the first two bytes of Page 1 like 98xxxxxx but since it is AKL it is irelevant at this stage and you will need to find a key via FCCID for your model instead.

[askkey]

@Ashkey: Thanks again! Thanks for teaching and for your patience, too.

I have seen posts that listed 4 lines of code for a Smart key (P1 that is two digits, Px with two more digits, 3rd and 4th lines had more information) and wondered what programs generated that. But even that may not be necessary if both ECUs are virginized and Auto Registration is activated by OBD jumpering as it is a Prox key Camry Hybrid with the Start/Stop button and not a barrell cylinder style.

I will followup and may take you up on your help with ECU programs. Crossing my fingers!

It looks like our post are out of sync. My reply is usually 2 posts bellow your question.

Please make sure you read my post #13 replying to your question in post #10 about the key programming after module reset.

It is necessary to have the correct model of key or you won't be able to program it to the car even if your modules are reset.

I took the time to search the correct model for your car online an I came up with this:

FCCID: HYQ14AAB
OEM P/N: 89904-33181 or 89904-06041
315 MHz P1 94

That should be the correct key for a 2008 Camry USA market (if the location data you posted on your profile is indeed USA). But make sure to double check that.
I am not 100% sure since I have not worked on US spec cars.

My replys will be a bit late as of now since here in southern Europe we have a bit of storm problems so there are thing to do. If you have any questions please be paitient with waiting for a reply.