Programming security on used ECM on a Jetta
Hello people of Diag.net
Tmro we have a Jetta coming in with some history. To be brief.
Vehicle has been purchased at auction (for cheap!!! the customer mentioned)
Was told it needed ECM by local VW dealer, they could NOT perform repair as they could not source a module
Customer took it upon himself, found used module, installed used module. Now has crank/stall. Security light. Supposedly before ECM replaced, would not even crank.
Only have 1 key.
Is this security system able to be relearned with used ECM and used ignition keys. Not very familiar with the german way of doing things and SI doesnt appear to be very helpful. I have a IM608 and a 908P both autels.
Any info is always appreciated.
Thank you in advance
Are you comfortable soldering? Here is one way, youtube.com/watch?v=5d-9x7…
I you don’t have a local locksmith that can program VW keys, my suggestion is to send the original module out to be repaired. I have used Module Masters in Idaho On 2 separate audis and have had excellent result. they also fixed a BMW abs Module for me too.
Module Masters is a good outfit for sure.
Save yourself a big chunk of hassle and find someone with an odis box and have them program the ecm immo. There are lots of hacks and work arounds, but all of them are a… pain
IM608 will pull the pin no problem in that one. Can't remember if in the diag side or key side. These are the instructions for matching a new ECM in there wiki.ross-tech.com/wiki/index.php…
IM608 will most likely get this one done to due age/ immo type… otherwise ODIS can do it for sure.
You can do this one without EEPROM. You need a tool that will read the immo PIN from the cluster and the donor ECU. Autologic Blue Box or Assist Plus does a nice job. The Autologic or VCDS have a function for replacement. There are also instructions in the VCDS Wiki. If the old ECU will still communicate there are a plethora of $100 tools on ebay that will read the PIN from ECU. If you don't…
Michael, do Autologic Blue Box and Assist Plus read these PINs via the DLC (I presume but thought it would be wise to ask)? I'm also assuming that the only other way is to read directly off the chip with aftermarket tooling and a PC?
Tony, Yes the Autologic Blue Box and Assist Plus do read over OBDII. If you want to go the EEPROM route, you could either copy and paste original EEPROM or just swap the EEPROM. The AR32A programmer is capable of reading many EEPROM in circuit. Pedro De La Torre is an expert on the tool. This means you likely would not have to remove the EEPROM to read. 2006ish and newer VW/Audi ECUs are not as…