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defaut BCM et HVAC

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Hello everyone, First of all, congratulations to this site for the quality of its presentation, its content, and all the contributors who keep it running. So, I bought a used, non-running 2014 Meriva B 1.7cdti Global A which had been quite heavily tampered with in the past. I changed the alternator, performed a relearn of the fuel pressure sensor with a Delphi, and the engine has been running correctly ever since. I reprogrammed two keys (the original Opel one and a generic one) with Opcom. I still have two problems. I have two permanent error codes: B3057-00 security code – not programmed B3925-00 Incorrect HVAC control module environment identifier received – malfunction I noticed that the module installed in the car was not the correct one. I found a used, matching HVAC module (13594789 with its respective VIN). After installing it in the car: Same error codes B3057 and B3925. I believe I understand that I need to reprogram the BCM and the HVAC. Am I on the right track, and how should I proceed? I have an account with ACDelco, and I'm getting a communication refusal with my VCX NANO in J2534 mode. Apparently, my tool is being rejected. Is Scanmatik 3 a reliable solution? Are there other more economical and equally reliable solutions? Thanks for taking the time to read this! And thank you in advance for your responses! lbarbar

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  • GM Car Hacking Expert
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You need to do an Immo relearn, I think. Can be done with SPS or DPS and a J2534.

Scanmatik is good tool. However, if this Meriva is before MY14.5 - you need to use Tech2Win for diagnostic procedures. And they have not implemented support for DPDU yet.

  • Author
1 hour ago, pupu14 said:

Il vous faut probablement effectuer une réinitialisation de l'immobilisateur. Cela peut se faire avec un SPS ou un DPS et un J2534.

Scanmatik est un bon outil. Cependant, si votre Meriva est antérieure à l'année-modèle 2014.5, vous devrez utiliser Tech2Win pour les diagnostics. De plus, la prise en charge des DPDU n'est pas encore implémentée.

merci beaucoup pupu14 pour la réponse.
Ma meriva est une Post 2014.5. Elle est Global A . Qu'entendez-vous par "la prise en charge des DPDU n'est pas encore implémentée" ?

  • GM Car Hacking Expert
  • Contributor

You need make a HVAC type4 reset first, the pincode must be the same as the car to relearn enviroment.

First: Reset the hvac

Second: Program HVAC to write VIN/PIN

Third, Make a Z1 procedure to relearn enviroment

  • GM Car Hacking Expert
  • Contributor
5 hours ago, lbarbar said:

merci beaucoup pupu14 pour la réponse.
Ma meriva est une Post 2014.5. Elle est Global A . Qu'entendez-vous par "la prise en charge des DPDU n'est pas encore implémentée" ?

It means Tech2Win will not see Scanmatik as an available device. Tech2 is not J2534, it works only with devices that have D-PDU driver.

  • Author
16 hours ago, Arbe_gtc said:

Vous devez d'abord effectuer une réinitialisation de type 4 du système de chauffage, ventilation et climatisation (CVC) ; le code PIN doit être identique à celui de la voiture pour réapprendre l'environnement.

Première étape : Réinitialiser le système de chauffage, ventilation et climatisation

Deuxièmement : programmer le système de chauffage, ventilation et climatisation pour qu’il enregistre le numéro VIN et le code PIN.

Troisièmement, effectuez une procédure Z1 pour réapprendre l'environnement.

Merci Arbe_gtc , pour toutes ces infos que je dois digèrer maintenant ! ;D

  • Author
12 hours ago, pupu14 said:

Cela signifie que Tech2Win ne reconnaîtra pas Scanmatik comme un périphérique disponible. Tech2 n'est pas compatible J2534 ; il fonctionne uniquement avec les périphériques dotés d'un pilote D-PDU.

Mais, ma meriva est post 2014.5 donc Global A qui est lu par GDS2 , non ?
Tech2win est utilisé pour les antérieurs à 2014.5 c'est à dire les pré-Global A.
Est-ce que d'une manière générale , l'interface quel qu'il soit (vxc nano , scanmatik, ect ) doit être doté d'un pilote D-PDU ?
Je suis perdu.

  • GM Car Hacking Expert

Hi, all posts should be submitted in English. Read the website's Terms and Rules. https://www.cameraloops.ru/terms

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The website has a built-in translation Ai feature that converts all written content into English. You can use it to translate your language into English.

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  • Author

Oh, I'm really sorry, I hadn't paid attention to that. I had believed, and I thought it was fantastic, that the site automatically translated depending on the forum user who was writing or reading! 😅
I will be careful from now on.🙏

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