What I want to do?
I want to get tool to do spare Passat dealers keys. I am aware lost keys is eeprom job (tango).
Car model, year, engine:
I have Zedbull and this info is from the Zedbull homepage:
PASSAT B6 SYSTEM
Pin code and CS is
extracted from the
ECU via OBD
*Vw can Bus 48 or Pcf7936
transponder must be precoded with
CS.
*If CS is 6 bytes and if Zed-FULL
says”No response”, Comfort module
eeprom file must be sent to IEA Tech
support
*If CS is 7 bytes, Zed-FULL will
precode the transponder.
Remote is programmed via OBD.
There is no known on board
programming procedure.
Passat B6(Smart key with 48 or
Pcf7936 transponder Cc(Smart key
with 48 or Pcf7936 transponder)
2004-2008.
If the car is 2008+ comfort module
eeprom file must be sent to IEA
tech support.
If all keys are lost fuses as in
the picture needs to be short
circuited in order to Wake up
the ECU.
*Prox. Keys has Pcf7936
transponder.
__________________________________
You need something that can read newer ECU,s as well.
You can use low cost option ECU reader clones, and post dumps and get 6th CS and PIN. And brute force the 7th byte via original key. Maybe you can use Zedfull for this?
There are several options here. It depends how much you want to spend.
If you spend even more money than you already have done, if even your MVP is also an original item. You can get the info directly on your PC. And do the job at once.
Tools recommended by experienced users:
1)Read ecu is wrong way, exist to many diffrents manufacture and types. Read eeprom from ccm is best and most secure way that you finish job with success. Tango, AVDI or TM100 is your solution.
2)If spare key, plug MVP, read PIN code and precoding data, put the data in Tango and search for 7th byte via exisiting key. Then write component security and lock transponder. At last, go to the car and learn the precoded key. Made 2 spare keys with MVP for Passat B6 2005-06 without any problems. If you can read PIN and precoding with MVP, you will succed.
3). I pull the comfort module on every Passat now, 20 minutes beginning to end for the complete job. If the customer has a genuine (with receipt) dealer supplied key then I will code that in, I cut the supplied transponder out and use a blank transponder coded by Tango, just like if it was my supplied remote.
Last Question:
Between tango ,vvdi, tm 100 which process doesn’t need soldering iron and which has wider coverage ?
Answer:
For all of them you need read first 95320 with external programmer (xprog programmer v5.0 will do it). I make Passat ccm with clip in circuit without any problem.