Renault Used Key Card Programming?

**foxtec800** · 4th August, 2010, 08:38 PM

sorry misunderstood, i use oe zedbull and that will produce id46 Renault cipher ready for obd programming, cant comment on the clone zedbull but figure it won`t be too far away from the origional,
i`ve used it for secondhand clio II remotes but never successfully managed to get a key card apart without destroying it....

**obdmaster** · 4th August, 2010, 09:04 PM

to get keycard apart m8, use surgical scalpel and patience!!

**foxtec800** · 4th August, 2010, 09:12 PM

and superglue to put it back together??? or just a nice clean looking piece of duct-tape

**drivesure** · 4th August, 2010, 10:17 PM

hi obd, if you put the chip on the card it is generally in cipher mode. i have only ever once found a card not in cipher. the zedbull original pre-coded this.

**obdmaster** · 5th August, 2010, 03:51 PM

but would new chips come in cipher mode such as these:

10 pcs IC Chip PCF7946AT PCF7946 Key Transponder Chip: eBay Motors (item 250644475194 end time Sep-01-10 11:48:50 PDT)

or would i need to precode them with ZED bULL .

**drivesure** · 5th August, 2010, 09:42 PM

you can only read once soldered on a card. so best to buy a few and solder on a card and then read it. i think it will be in cipher mode.

**obdmaster** · 18th August, 2010, 01:06 PM

Tried renault laguna 2 card comes apart nice, but renault megane is a bugger.

Here are some pics, ive changed pcf7947AT succesfully have no zed bull clone at mo so dont know if in cipher mode, but so far so good.

here are pics of internal of laguna 2 card.

**paul_12345** · 20th August, 2010, 07:37 PM

could always cut a hole around the chip just enough to remove it quickly without damaging the rest of the plastic then either put the piece that was cut out back or just fill the hole with epoxy etc.

Might not look the best but would stop it falling to pieces easily.

**MrSporty** · 23rd August, 2010, 07:24 PM

Are you 100% sure that a factory fresh PCF7947AT works.

I have a card that i have replaced the chip on. I know the chip is virgin as i can read and write it with my Hitag2 programmer. Its definately in cipher mode (first byte of config is 0E) and the transport key is 4F4E4D494B52.

I also have Renault Explorer 1.5 and although i can re-code cards that are already paired, the card i have with the virgin chip still won't pair up. Are you sure that either some of the config data or user data doesn't need to be changed to make them compatible ?

**drivesure** · 23rd August, 2010, 08:35 PM

i use my hot air station with a very mild heat and heat up the plastic slightly and the cut with a scalpel. it is like cutting butter. be carefull not to put too much heat otherwise you damage the plastic. when done i just suplerglue back together. good result.

**obdmaster** · 23rd August, 2010, 09:21 PM

Originally Posted by MrSporty

Are you 100% sure that a factory fresh PCF7947AT works.

I have a card that i have replaced the chip on. I know the chip is virgin as i can read and write it with my Hitag2 programmer. Its definately in cipher mode (first byte of config is 0E) and the transport key is 4F4E4D494B52.

I also have Renault Explorer 1.5 and although i can re-code cards that are already paired, the card i have with the virgin chip still won't pair up. Are you sure that either some of the config data or user data doesn't need to be changed to make them compatible ?

I havent tried to program on car yet, drivesure m8, have you any tips to help me and mr sporty m8, i see on zed bull transponder production renault laguna 2 is there but it says use blank pcf7946, not pcf7947at, that are in the cards.

Any help is appreciated.

**drivesure** · 23rd August, 2010, 10:25 PM

if your card have 7946 then replace with 7946 and if it have the 7947 replace with 7947 . i have had no problems with the cards i renew in this way. i have used successfully on renault megane, laguna and clio 2 remotes as well as on the clio3/modus 2 button remotes which i renewed. all coded in to the vehicle.