Seat Toledo 1.6 (MM IAW 4MV) dropped the keys

[Fec001]

Hi there!
Few days ago I ask for the LOGIN code for this car in the ECU.
I chacked the login in the dashboard too and they are match.
But if I want to learn keys the car and give the login in VCDS, the dashboard Shows "FAIL" and VCDS writes: Login lost due to dropped session. So I can't learn keys.....

[Fec001]

but the central lock is working

[obdmaster]

Sounds like faulty instrument cluster?? you tried another tool to program keys???

What year is car??

Remote will work as done by convenience unit not instrument cluster.

What transponder you using is it new???

[tmkz]

maybe ecu and dashboard is LOCKED, you must leave the ignition key switch ON for a few hours.

[Fec001]

I left the ignition on for a night.
Car year 2002 immo 3
I tried to learn keys with VAG commander and there is the same "FAIL" on dashboard

[mastaflex]

FAIL + lost session mean that the PIN code is wrong ...

[kareszka]

Hi!
Please upload original dump from instrument cluster.

[Fec001]

Hi!
Please upload original dump from instrument cluster.

Here it is...

[Fec001]

dump from ECU. Logins matches....

[mastaflex]

what login did you use?

[Fec001]

04534.........

[mastaflex]

login is ok

[kareszka]

VIN same in cluster and ecu.

[faze]

maybe ecu and dashboard is LOCKED, you must leave the ignition key switch ON for a few hours.


All keys are either new or were adapted to this car (IMMO-ID) before.
You can match up to 8 keys.
While adapting each key, make sure to place the other keys away from the ignition lock (reader coil). The passenger seat is an adequate place.
Battery voltage at least 12.5 V.


[Select]
[17 - Instruments]
[Meas. Blocks - 08]
Select Block 022.
[Go!]
The value in field 3 must be 1. If value is not 1, the key is not capable of being adapted to Immobilizer.
You can check each key in this manner.

Select Block 024.
[Go!]
Make sure the shown lock times in field 1, 2 and 3 are 0 (each field represents a time in minutes).



If the lock times are NOT 0:

Do NOT switch off the ignition!
Allow the car to sit for AT LEAST the number of minutes that were indicated by the fields 1-3.




Immobilizer III Key Matching (Cluster) - Ross-Tech Wiki (http://wiki.ross-tech.com/wiki/index.php/Immobilizer_III_Key_Matching_%28Cluster%29)

What key you using is it new or used from this car?

[Fec001]

Thank you i found it, it is counting down in the 1, 3 fields. After that I can give the login and it will be ok?

[Fec001]

keys has cylindrical transponders

[faze]

keys has cylindrical transponders


[Select]
[17 - Instruments]
[Meas. Blocks - 08]
Select Block 022.
[Go!]
The value in field 3 must be 1. If value is not 1, the key is not capable of being adapted to Immobilizer.
You can check each key in this manner.

[Fec001]

value in field 3 is 1

[faze]

value in field 3 is 1

when Block 024 shown 0 try enter PIN and then...maybe will be OK

P.S.
sorry for bad english

[olegario]

try to search forum for small programm , to make 7 digit pin from 4 digit pin code. Here

[Fec001]

The count down is over, now it accept the login and I learn the 2 keys. The car starts but the immo lamp is still blinking and 1 fault code: Incorrect key programming......

[Fec001]

OKay I did it. Just have to change the keys fast and switch ingition on and off. Now it working perfectly.
Thank all of you!

[faze]

OKay I did it. Just have to change the keys fast and switch ingition on and off. Now it working perfectly.
Thank all of you!


Congratulate! :top: I am glad to help you