Haval ECU Coding App

CarCoding allows you to perform ECU coding on Haval vehicles using an iPhone or Android phone with an ELM327 BLE OBD2 adapter. The app supports a catalog of 9 Haval models, with coding data available for 5 of them. This tool enables users to modify specific vehicle settings directly from their mobile device.

Vehicles with coding
5
Vehicles in catalogue
9
Manufacturer fault codes
52

You can adjust various settings such as Mood Lamps, Engineering Mode, Export Country, Navigation Services, and Voice Recognition. Other options include Off-road Information Display, Rear Display 1, Rear Display 2, and Traffic sign recognition. The app also provides access to 52 manufacturer fault code definitions.

Examples of codeable settings

Models with coding data

Haval — all supported models →

Frequently asked questions

Which app does ECU coding on Haval vehicles?

CarCoding does ECU coding on Haval vehicles from your phone; coding data exists for 5 vehicles. An ELM327-based OBD2 adapter with Bluetooth Low Energy (BLE) is all you need; the app runs on iPhone and Android and is free to download.

Which Haval models can be coded?

Some of the models with coding data: Dargo (2021–), H6 (3rd gen) (2021–), Jolion (2021–), Ora 03 (Funky Cat) (2022–), Wey Coffee 01 (2021–). The full list is on this page.

Which adapter do I need?

An ELM327-based OBD2 adapter with Bluetooth Low Energy (BLE) is all you need; the app runs on iPhone and Android and is free to download.

How do I start?

  1. Plug an ELM327-compatible OBD2 adapter into the car.
  2. Open CarCoding and connect to the adapter over Bluetooth.
  3. Pick the make and model — or let the VIN identify it.
  4. Read fault codes; on supported vehicles, open the module settings.

Get CarCoding

Connect your ELM327 adapter, read fault codes, and browse module settings on supported vehicles.

The app is free to download.