Bmw E91 2012 Cas3++
New key(China) learned Launch + prog
The car starts ok, but the remote control does not work there is a fault in the cas module
A0AA - cas control unit fault
Friends, how to get the remote control back to work
Before learning the new key, I read flash and eeprom from cas using x-prog
I compared the files. Launch did not downgrade CAS. Neither has it made any changes to the flash memory.
Thank You
Results 1 to 7 of 7
Thread: Bmw CAS3++ All key lost
-
19th July, 2022, 10:20 PM #1Senior Member
- Join Date
- Oct 2010
- Location
- POLAND
- Posts
- 258
- Thanks
- 117
- Thanks
- 53
- Thanked in
- 43 Posts
Bmw CAS3++ All key lost
-
19th July, 2022, 10:45 PM #2DK Veteran
- Join Date
- Jun 2019
- Posts
- 1,495
- Thanks
- 679
- Thanks
- 540
- Thanked in
- 419 Posts
Are you sure key is ok as plenty of cheap ones about
Solidarity with Ukraine
-
The Following User Says Thank You to fred77 For This Useful Post:
eciepecie (23rd July, 2022)
-
20th July, 2022, 10:07 AM #3DK Veteran
- Join Date
- Mar 2018
- Posts
- 338
- Thanks
- 353
- Thanks
- 121
- Thanked in
- 114 Posts
hi what is the frequency? It could be wrong. Europe is usually 868 MHz.
Originally Posted by eciepecie
Bmw E91 2012 Cas3++
New key(China) learned Launch + prog
The car starts ok, but the remote control does not work there is a fault in the cas module
A0AA - cas control unit fault
Friends, how to get the remote control back to work
Before learning the new key, I read flash and eeprom from cas using x-prog
I compared the files. Launch did not downgrade CAS. Neither has it made any changes to the flash memory.
Thank You
-
The Following User Says Thank You to musti418 For This Useful Post:
eciepecie (23rd July, 2022)
-
20th July, 2022, 11:45 AM #4Senior Member
- Join Date
- Oct 2010
- Location
- POLAND
- Posts
- 258
- Thanks
- 117
- Thanks
- 53
- Thanked in
- 43 Posts
hi.
I checked the key is working and the 868 frequency is correct. Could it be the fault of an incorrectly added new key by Launch. and incorrect data entered into eeprom memory in CAS module?
-
20th July, 2022, 08:10 PM #5Junior Member
- Join Date
- Jan 2022
- Posts
- 39
- Thanks
- 12
- Thanks
- 13
- Thanked in
- 10 Posts
compare eeprom data old and new. something must be wrong in eeprom
-
The Following User Says Thank You to rico126pl For This Useful Post:
eciepecie (23rd July, 2022)
-
21st July, 2022, 10:28 AM #6Newbie
- Join Date
- Jun 2022
- Posts
- 13
- Thanks
- 0
- Thanks
- 7
- Thanked in
- 4 Posts
you can try to delete the remote control, then unlock it, generate it again with ignition switch, unable to match the remote control alone, so you need learn the key again
-
The Following User Says Thank You to Gracy For This Useful Post:
eciepecie (23rd July, 2022)
-
23rd July, 2022, 09:37 AM #7Senior Member
- Join Date
- Oct 2010
- Location
- POLAND
- Posts
- 258
- Thanks
- 117
- Thanks
- 53
- Thanked in
- 43 Posts
Hi.
When programming a new key, I had to generate the dealer's key using the programmer. Using the ignition switch, the procedure was unsuccessful.
The repair procedure from Launch showed no improvement.
I compared the files from the eeprom memory and it was indeed found that Launch was incorrectly editing the eeprom.
Having already one key that starts the car.
I was able to perform the procedure of teaching an ordinary transponder to the file and according to the data that changed during programming - I found out which key data it was.
I manually added the key data to the original file.
Now I no longer have errors in CAS.
Engine starts properly.
Only the remote control is not workingLast edited by eciepecie; 23rd July, 2022 at 09:39 AM.
Reply With Quote
Bookmarks