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Old 01-28-2018, 06:05 PM   #1
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Default Pas de climatisation

Bonjour à tous,

J'ai des gros soucis actuellement sur une 645ci (E64) de 2005, moteur N62, la climatistion ne fonctionne pas !

Code erreur : 9C5D, Alimentation du capteur de pression du réfrigérant, signal ou valeur en dessous du sueil.

La valeur du capteur est de 0,9V au-lieu de 5V.

Le pressostat de clim est neuf (bmw), le compresseur a été changé, le déshydrateur est neuf, la clim est pleine.

Je vous tient au courant !

N'hésitez pas si vous avez des pistes ?

Merci
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Old 01-28-2018, 06:48 PM   #2
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salut
tu as rempli ta clim , il y a combien de temps ???
re contrôle si ta clim est pleine de gaz réfrigérant et si l' embrayage
du compresseur s'active au démarrage ??
éventuellement si il n'y a aucune fuite ???
cdlt
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Old 01-28-2018, 09:02 PM   #3
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Originally Posted by zenata View Post
salut
tu as rempli ta clim , il y a combien de temps ???
re contrôle si ta clim est pleine de gaz réfrigérant et si l' embrayage
du compresseur s'active au démarrage ??
éventuellement si il n'y a aucune fuite ???
cdlt
Merci Zenata de m'avoir répondu aussi vite, la clim a été rechargée hier après changement du pressostat. Le bouton de climatisation clignote dans l'habitacle jusqu'à 1500 tours puis reste allumé au-dessus, les tuyaux de climatisation ne sont pas froids, le compresseur de clim est avec electrovanne donc pas d'embrayage (Toujours embrayé).

A+ !
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Old 01-28-2018, 09:17 PM   #4
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salut l’électrovanne etait fournie avec le compresseur ??? si oui change le detendeur

Last edited by jphp; 01-28-2018 at 09:22 PM.
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Old 01-28-2018, 09:47 PM   #5
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salut l’électrovanne etait fournie avec le compresseur ??? si oui change le detendeur
Merci pour ta réponse jphp, l'électrovanne était fournie avec, je change le détendeur et je te tient au courant !
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Old 01-28-2018, 11:06 PM   #6
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le bon poid de gaz? c'est con,mais des fois

---------- Post added at 23h06 ---------- Previous post was at 23h05 ----------

le bon gaz,la bonne huile?
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Old 04-03-2018, 10:26 AM   #7
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le bon poid de gaz? c'est con,mais des fois

---------- Post added at 23h06 ---------- Previous post was at 23h05 ----------

le bon gaz,la bonne huile?
Salut l'ami,

Tout est nickel de ce côté la !

---------- Post added at 10h26 ---------- Previous post was at 10h24 ----------

Détendeur changé, toujours pareil !

Vu qu'il est situé après le capteur de pression, logiquement si il y a un problème de pression, ça viendrait d'avant le capteur ? Je me trompe ?
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Old 04-03-2018, 12:38 PM   #8
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Salut l ami dis moi la valeur 0.9v est pr l alimentation? Ou signal? Lorsque tu déconnecte la fiche cmb as tu comme valeur?

Bat
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Old 04-03-2018, 04:00 PM   #9
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Vérifie si tu a bien une tension de 5v sur l’arrivée du faisceau de ton capteur.

Si c’est bien le cas, pour moi c’est ton capteur qui est HS.

Commande en un chez Oscaro et si ce n’est toujours pas ça, ce que je doute, tu pourra toujours renvoyer la pièce dans les 15 jours :)

Nyckos
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Old 04-03-2018, 04:42 PM   #10
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Slt trident,
Le capteur pression comporte 3 fils? si c'est le cas alors:

Alimentation --> 5V,
Signal --> presque 5V

Cependant:
Si l'alimentation est correcte alors: le capteur pression est endommagé
Si l'alimentation n'est pas correcte alors: câblage en cour-circuit ou calculateur climatiseur;;

Pour être plus précis utilise un schéma de câblage;;
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Old 04-03-2018, 07:55 PM   #11
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Salut,
Comme dis plus haut assure toi bien d avoir 5v pour l alimentation du capteur debranche ds un premier temps afin d ecarter tout pb en amont.
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Old 01-08-2019, 10:41 AM   #12
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Bonjour à tous,

Sur ce véhicule le problème était l'alternateur HS...
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Old 01-08-2019, 07:01 PM   #13
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quel rapport avec la clim ? hormis la courroie
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Old 01-09-2019, 02:39 PM   #14
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Originally Posted by Trident View Post
Bonjour à tous,

Sur ce véhicule le problème était l'alternateur HS...
Qu'en est'il du défaut enregistré à propos du capteur pression!?
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Old 01-14-2019, 09:47 AM   #15
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Originally Posted by yann3 View Post
quel rapport avec la clim ? hormis la courroie
Aucun...

L'électronique est très sensible sur certaines BMW et le fait que l'alternateur recharge à peine à la consigne devait créer une interdiction de CLIM qui coupe le compresseur.

J'avais d'autres erreur sur les airbags / prétensionneurs qui ont aussi disparu.

Quote:
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Qu'en est'il du défaut enregistré à propos du capteur pression!?
Plus aucun défaut.

Des fois les pannes...
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