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View Full Version : Copying Toyota 4c keys - ADVICE PLEASE



electronicar
15th January, 2011, 01:11 PM
Hi Guys

Pls help me understand this ...

I have AD900 & T300.
I need to copy a 4C key . I read the key with AD900 & it shows ... 7E37DD64E00000000048157E0000 , ID4C , EEP: ECBB2607 & it says i should write to a TEXAS transponder.
1) So exactly what transponder must i order for this to work? What must i tell the supplier , do i ask for blank or do i ask for a precoded or do i have to ask for toyota ID4c precoded or what ? When u ask for a precoded transponder , do u have to say for what car & what ID it is ?
Sorry if this seems stupid , but i just need to know what transponders do i ask for for T300 & for AD900 , thx guys :D

KLS
15th January, 2011, 01:39 PM
Hi
Dont your ad900 show the type of transponders to clone to 4c =tpx1

electronicar
15th January, 2011, 01:45 PM
Thx KLS

My software is a little older but it does show that i must use TEXAS EMU/TXP , so do i just ask for TEXAS EMU or TXP ? No part no. etc will Chinese supplier know exact chip to send ? What about local agents , if i buy key with transponder from them will it work with AD900 & T300?

electronicar
15th January, 2011, 01:52 PM
@ KLS - here's a classic example ...
I read a Opel key , it says GM ID33 Philips , & that i should use PCF7930/31/35 . I imported a few PCF 7935 chips but it refuses to copy onto them . If i use the same key i am reading , just for testing then the AD900 says COPY SUCCESSFUL , so obviously my machines ok but the chips i have don't work here ? For the above example , what EXACTLY should i ask for when ordering?
Also if i bought a blank from Opel , would the AD900 copy then? Thx for your help bro , maybe i should spend a few days on a basic training course with u ( at a price of course):D

key point
15th January, 2011, 02:21 PM
pcf 7935 is not for id33 you need pcf 7931.

KLS
15th January, 2011, 02:44 PM
Hi
maybe this can help a little (Advanced Keys (http://advanced-keys.co.uk/downloads.php)) try transponder cross ref

electronicar
15th January, 2011, 02:55 PM
pcf 7935 is not for id33 you need pcf 7931.

Thx for the replies , how would i know this , i have read the ad900 manual all thru , it does not say this .
So do i ask for a PCF7931 precoded or just PCF7931 ? If i ordered a few would i be able to use it on other cars with ID33 or only the OPEL ?

key point
15th January, 2011, 03:44 PM
the manual for genuine machines explains everything and has done for a couple of years. it tells you what chip is used to generate, to copy and to eeprom. speak to your supplier and download their link.

key point
15th January, 2011, 04:02 PM
Also, dont confuse the terms generating and copying chips.

lockbreaker
15th January, 2011, 04:21 PM
You're not gonna find TPX chips in China....not yet anyhow.

tdor49
15th January, 2011, 06:43 PM
Thx for the replies , how would i know this , i have read the ad900 manual all thru , it does not say this .
So do i ask for a PCF7931 precoded or just PCF7931 ? If i ordered a few would i be able to use it on other cars with ID33 or only the OPEL ?

this is the trouble with ad900, it's good for reading chips and some special things like preparing id40 chips and unlocking id48, but when generating keys it always says to use 'precoded' chips

trying to get hold of 'precoded' chips is not easy

i'm thinking of buying china zedbull just to be able to generate some of the precoded chips

lockbreaker
15th January, 2011, 07:16 PM
Toy 4c is too easy to find ANYWHERE.

Precoded chips are not at all hard to find for 99 percent of what you run into. AND cheaper tham buying clone chips with housings for OBD programming.

What am I missing here, dude?

tdor49
15th January, 2011, 10:25 PM
Toy 4c is too easy to find ANYWHERE.

Precoded chips are not at all hard to find for 99 percent of what you run into. AND cheaper tham buying clone chips with housings for OBD programming.

What am I missing here, dude?

would appreciate if you could tell me where these 'precoded' chips are readily for sale because i haven't found anywhere that sells them dude

last month i needed a precoded chip for volvo v40 / rover 75 / fiat ducato / and i couldn't find them anywhere !!!!!

are you trying to copy a 4c chip for toyota because it's easier just to add another 4c chip to ecu

lockbreaker
15th January, 2011, 11:23 PM
The thread title indicated 4c Toyota....and that was what I was referring to as being too easy to find. And you're right, I would add a key to the system before cloning any day on those.
Now as for the other cars mentioned, yup, good luck on those.
Everyone on this site is gonna talk apples to oranges anyway...everyone is on different continents, as when my reference is 99% of what I run into, it will be the absolute opposite for others.

electronicar
16th January, 2011, 01:18 PM
Thx guys , i am learning fast . Please explain a simple thing to me ...
If i read a PCF7935 chip & it says GM ID40 for example , does this mean its a precoded chip for GM or what?

joubliss
18th January, 2011, 03:15 PM
Ad900 clone use a precoded chips, dont use a blank chips like Zedbull and others......

for example if u want to make a key from a dump with Ad900 u have to do it with a precoded chip for this cars.... but with other tools like Zedbull u can use a T5 or sometimes a blank pcf7935 to do the job.

i suggest to buy a genuine tool that use a blank chips and generate most chips......

job

key point
19th January, 2011, 07:52 PM
Ad900 clone use a precoded chips, dont use a blank chips like Zedbull and others......

for example if u want to make a key from a dump with Ad900 u have to do it with a precoded chip for this cars.... but with other tools like Zedbull u can use a T5 or sometimes a blank pcf7935 to do the job.

i suggest to buy a genuine tool that use a blank chips and generate most chips......

job
the ad900 uses precoded chips for the cloning of some chips but if you are making a key from the dump you never use precoded 99 chips you just use T5 or pcfs like the zed bull.

joubliss
19th January, 2011, 11:07 PM
the ad900 uses precoded chips for the cloning of some chips but if you are making a key from the dump you never use precoded 99 chips you just use T5 or pcfs like the zed bull.

wa talk about Ad900 clone not genuine one. look at Transpronics (software of ad900 clone) and u will see what i mean.

key point
19th January, 2011, 11:51 PM
wa talk about Ad900 clone not genuine one. look at Transpronics (software of ad900 clone) and u will see what i mean.

i see, not had any experience with a clone. good news if they dont work so well though.

marginal
25th January, 2011, 03:26 PM
You're not gonna find TPX chips in China....not yet anyhow.
Here: Transponder Chip (http://www.autokeys.us/products.php?category_id=13)

electronicar
31st January, 2011, 11:14 PM
Also, dont confuse the terms generating and copying chips.

Copying is basic cloning right ?
Please explain generating ? So the new chips for copying & generating are not the same ?

lockbreaker
31st January, 2011, 11:48 PM
I'll try to put this simple as I can. When he's referring to copying, yes, he's referring to cloning. Generating is writing the logic to the chip to be used for programming OBD, aka "coding" the chip for a sole intended application or like platform applications.

lockbreaker
1st February, 2011, 02:06 AM
Here: Transponder Chip (http://www.autokeys.us/products.php?category_id=13)

okay, I take that back. But those prices are about the same as any legitimate supplier, plus shipping from China is a drag if you aren't buying a bazillion bucks worth of stuff.

marginal
1st February, 2011, 02:13 AM
okay, I take that back. But those prices are about the same as any legitimate supplier, plus shipping from China is a drag if you aren't buying a bazillion bucks worth of stuff.
I think those prices are cheaper, but anyway ...

electronicar
1st February, 2011, 09:30 AM
@ Marginal
I have AD900pro & T300 from China . I also have labtool48 & a few other universal programmers .
I know how to solder & desolder very well & i know eeprom programming .These cheap clones have already paid themselves off with the little knowledge that i have , but i am not happy with my success rate . My supplier in China does not know their products very well so they keep sending me chips that dont work with machines they supplied . I spend TOO much time finding out why i can't copy this or that .
Please suggest to me what to invest in if i want to be able to do almost all cars & also if u guys can supply chips that work with your machines . Back-up & support is very important because i can't send 9 out of 10 cars back unrepaired . Thx .

joubliss
1st February, 2011, 10:34 AM
@ Marginal
I have AD900pro & T300 from China . I also have labtool48 & a few other universal programmers .
I know how to solder & desolder very well & i know eeprom programming .These cheap clones have already paid themselves off with the little knowledge that i have , but i am not happy with my success rate . My supplier in China does not know their products very well so they keep sending me chips that dont work with machines they supplied . I spend TOO much time finding out why i can't copy this or that .
Please suggest to me what to invest in if i want to be able to do almost all cars & also if u guys can supply chips that work with your machines . Back-up & support is very important because i can't send 9 out of 10 cars back unrepaired . Thx .

its normal with chinese tools mate, if u want to do ur job at 100% buy a genuine tool, Like Zedbull or Tmpro or Tango...... all this tools works with chiper transponders (blancks) like for pcf7935 dont need to buy precoded one just put a blank pcf7935 and it will works.

Job

znakedwrx
1st February, 2011, 11:44 AM
Tmpro2 & Tango are very good for such things.

Get original tools and stop wasting your time with those Chinese clones!!!

marginal
1st February, 2011, 02:55 PM
@ Marginal
I have AD900pro & T300 from China . I also have labtool48 & a few other universal programmers .
I know how to solder & desolder very well & i know eeprom programming .These cheap clones have already paid themselves off with the little knowledge that i have , but i am not happy with my success rate . My supplier in China does not know their products very well so they keep sending me chips that dont work with machines they supplied . I spend TOO much time finding out why i can't copy this or that .
Please suggest to me what to invest in if i want to be able to do almost all cars & also if u guys can supply chips that work with your machines . Back-up & support is very important because i can't send 9 out of 10 cars back unrepaired . Thx .
Hi Electronicar.
I can not talk about equipment which can do most of the cars as I am using Chinese clones like you so far (I intend to buy some real programmers in the near future though).
I don't do MB, BMW, Volvo and some other makes.
I am doing mainly key programming and not key cloning (very little key cloning).
SBB V32 is my favorite tool, but Diagun and VAG DASH K+CAN are not bad either.
If you want, I can give you a link to my supplier, it is a good one.
So far, so good, the only thing I have not had the chance to work with lately is the TYP: 60 transponders that they sold me for a TYP: 68 ones.
Hope this helps ...

lockbreaker
1st February, 2011, 05:12 PM
Far as OBD scan tool support goes, AD is great. However, their products work so well and are so easy to use, that technical support is rarely if ever needed.
I've had AD testers for 8 or 9 years, and I've called tech support once.

therakater
20th February, 2011, 10:23 AM
4c is a texas fixed code transponder the easiest way to provide another key is to clone it. you will need to clone it to a 4c module (silca eh1) if you're using the ad900, silca rw4 can clone it to a 4d module (silca eh2) aswell. so if you have rw4 you just stock 4d keys if you're using ad900 you need to stock 4c & 4d keys to be able to do the job