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Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Thu Oct 10, 2019 3:53 pm
by VASILEIOS1972
ciclo wrote: ↑Fri Oct 04, 2019 8:42 pm
It seems that the J745 unit uses a protocol that the new
internal Gateway of the new BCM 7E0 does not understand.
In the original diagrams of the J745 unit the CAN lines go to an
external Gateway that manages it (which is used for the old BCMs).
I fear that it is not possible to have two Gateways for data management between units.
---
Idea
⚠.. not based on any kind of technical knowledge, but it has worked with other units in other cars ..⚠
As a test,
not as a final installation, do the following:
The new CAN lines must also remain installed for the IC.
Most likely, it will not work, and therefore you cannot install the J745.
---
Tip: For the tests it is always better to use original connectors to avoid cuts in the wires when testing, and for wires isolation too.
Hello Fernando ,
the can lines are connected like in the previous photo
I am telling you this , because I tried and made tests (previous days) with new can lines (ic) and nothing change
for your information
regards
Vasilis
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Thu Oct 10, 2019 5:30 pm
by VASILEIOS1972
Hello Fernando
1st image biiiiiip (ok)
2nd image (10,76)
can lines 13-14 value in (-1) biiiiiiiiiiiip
regards
Vasilis
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Thu Oct 10, 2019 5:35 pm
by ciclo
VASILEIOS1972 wrote: ↑Thu Oct 10, 2019 3:53 pm
ciclo wrote: ↑Fri Oct 04, 2019 8:42 pm
It seems that the J745 unit uses a protocol that the new
internal Gateway of the new BCM 7E0 does not understand.
In the original diagrams of the J745 unit the CAN lines go to an
external Gateway that manages it (which is used for the old BCMs).
I fear that it is not possible to have two Gateways for data management between units.
---
Idea
⚠.. not based on any kind of technical knowledge, but it has worked with other units in other cars ..⚠
As a test,
not as a final installation, do the following:
The new CAN lines must also remain installed for the IC.
Most likely, it will not work, and therefore you cannot install the J745.
---
Tip: For the tests it is always better to use original connectors to avoid cuts in the wires when testing, and for wires isolation too.
Hello Fernando ,
the can lines are connected like in the previous photo
Reconnect them as at the beginning, to the old CAN lines for the IC, is the correct way.
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Thu Oct 10, 2019 5:36 pm
by VASILEIOS1972
yes I have them as the beginning
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Thu Oct 10, 2019 5:39 pm
by VASILEIOS1972
tell me about the results , are correct ?
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Thu Oct 10, 2019 5:42 pm
by ciclo
Where did you buy the J745 unit? New, used? Link to the sale?
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Thu Oct 10, 2019 5:45 pm
by VASILEIOS1972
used and I have already ask refund
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Thu Oct 10, 2019 5:55 pm
by ciclo
VASILEIOS1972 wrote: ↑Thu Oct 10, 2019 5:39 pm
tell me about the results , are correct ?
They're correct.
It is very strange that this J745 unit cannot be read through powertrain CAN lines.
Ideally, it would be to test with another J745 unit that you have the certainty that works on another SK Fabia II.
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Thu Oct 10, 2019 6:22 pm
by VASILEIOS1972
believe me Sk Fabia with this kind of lights it is something very rare in Greece
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Thu Oct 10, 2019 6:25 pm
by VASILEIOS1972
I think that you have right from the beginning , about J745 compatibility with max bcm
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Thu Oct 10, 2019 9:20 pm
by exantas
Maybe I am wrong but from the pictures this car
https://www.car.gr/parts/view/19800573- ... pers-motor
looks like to have active cornering headlights.
If you they give you the vin number, you can verify it and get parts from that car, if still available.
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Fri Oct 11, 2019 2:44 am
by ciclo
That Sk Roomster shown does not have the DCLs.
Look at the headlight, it doesn't have the opening around the lens.
https://www.drive2.ru/l/463331177361572900/
VASILEIOS1972 wrote: ↑Thu Oct 10, 2019 6:25 pm
I think that you have right from the beginning , about J745 compatibility with max bcm
It is only a data-based assumption (ETKA, Elsa).
I still think that the J745 unit should be readable once connected, but your autoscan says it cannot be reached.
VASILEIOS1972 wrote: ↑Thu Oct 10, 2019 6:22 pm
believe me Sk Fabia with this kind of lights it is something very rare in Greece
It is also difficult to find information online of some SK Fabia II with BCM Max 7H0937090D ... however it was a BCM installed in the Fabia II according to the ETKA.
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Fri Oct 11, 2019 6:58 am
by VASILEIOS1972
ciclo wrote: ↑Fri Oct 11, 2019 2:44 am
That Sk Roomster shown does not have the DCLs.
Look at the headlight, it doesn't have the opening around the lens.
https://www.drive2.ru/l/463331177361572900/
VASILEIOS1972 wrote: ↑Thu Oct 10, 2019 6:25 pm
I think that you have right from the beginning , about J745 compatibility with max bcm
It is only a data-based assumption (ETKA, Elsa).
I still think that the J745 unit should be readable once connected, but your autoscan says it cannot be reached.
VASILEIOS1972 wrote: ↑Thu Oct 10, 2019 6:22 pm
believe me Sk Fabia with this kind of lights it is something very rare in Greece
It is also difficult to find information online of some SK Fabia II with BCM Max 7H0937090D ... however it was a BCM installed in the Fabia II according to the ETKA.
You have absolutely right. Roomster headlights are the same like those I have in fabia from facrory.
Tell me please 7H0937090D is the correct bcm for my fabia?
J745 will work with this bcm?
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Fri Oct 11, 2019 10:04 am
by ciclo
According to ETKA it would be possible... btw.... have you learned to use it?
According to Elsawin, I don't know because I only have the wiring diagrams for Fabia II until 2013. I don't have them until 2015, which is when the Fabia II production for Europe was finished and that is when the 7H0937090D model was being installed.
The wiring diagrams for Sk Fabia II 2015 are necessary to know how to install this BCM.
Re: Skoda Fabia VRS 2012. Auto lights retrofit OEM
Posted: Fri Oct 11, 2019 10:17 am
by ciclo
By the way, whoever publishes an Autoscan VCDS from a Skoda Fabia II with 7H0937090D in address 09 and with address 55 may ask me for a gift from the many I can do.
I have searched tirelessly since the origin of this thread, but impossible for me to find it.
⚠.. not based on any kind of technical knowledge, but it has worked with other units in other cars ..⚠