> For the complete documentation index, see [llms.txt](https://navixy.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://navixy.com/docs/expert-center/fr/vehicle-telematics-technology/can-and-obdii.md).

# CAN et OBDII

Cette section explique comment les appareils GPS communiquent avec l’électronique du véhicule via les interfaces CAN bus et OBD-II, en couvrant le paysage des protocoles, les appareils OBD prêts à l’emploi et la manière de lire et d’interpréter les codes d’anomalie de diagnostic.

## Sommaire

* [Communication intra-véhicule : CAN, FlexRay et MOST](/docs/expert-center/fr/vehicle-telematics-technology/can-and-obdii/intra-vehicle-communication-can-flexray-and-most.md): Comment les calculateurs échangent des données via différents protocoles de réseau embarqué.
* [Principes fondamentaux des appareils OBD](/docs/expert-center/fr/vehicle-telematics-technology/can-and-obdii/obd-tracker-fundamentals.md): Comment les appareils OBD prêts à l’emploi se connectent au port de diagnostic et quelles données ils exposent.
* [DTC (codes d’anomalie de diagnostic)](/docs/expert-center/fr/vehicle-telematics-technology/can-and-obdii/dtc-diagnostic-trouble-codes.md): Comment décoder les structures des codes d’anomalie, interpréter les catégories d’erreurs et agir sur les données de diagnostic.


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