Citroën2020–3 engines

Citroën C4 / ë-C4

Supported ECU modules, codeable settings and fault codes for this vehicle. Open a module or a code block to see the detail.

Model years
2020–
Engine options
3
Coding modules
8
Codeable settings
2,570
Make-wide fault codes
7,087

CarCoding works with the Citroën C4 / ë-C4 (2020–) using an ELM327 OBD2 adapter on iPhone, Android, and Windows. It provides ECU coding and fault code reading for this vehicle, with 8 coding modules, 7087 manufacturer fault code descriptions, and 2570 codable settings. Among the engine options are 1.2 PureTech 100HP, 1.2 PureTech 130HP, and 1.5 BlueHDi 110HP.

With CarCoding, you can change settings like BSI2010Evo Multiplex Fuel Additive Pump, BSI2010Evo Steering Wheel-Mounted Switch, BSI2010Evo Seat Belt Reminder, and BSI2010Evo Battery Charge Status Unit. Other adjustable settings include BSI2010Evo Airbag, BSI2010Evo Motor Control Unit, and BSI2010Evo Driver's Door Control Panel. The app supports 2570 codable settings in total.

Supported coding modules

The CarCoding coding database defines 8 modules and 2570 settings for this platform. Open a module to see every setting it carries.

Grouped by category. Open a module to see every setting it exposes.

Body and comfort

Instrument cluster

Infotainment

Safety and driver assistance

Powertrain

Engine options

Fault codes for this make

There are 7,087 manufacturer fault code descriptions for Peugeot · Citroën · DS. Open a code block and read what your code means.

44 more blocks →

Frequently asked questions

Which app can do ECU coding on the Citroën C4 / ë-C4?

CarCoding does ECU coding on the Citroën C4 / ë-C4 (2020–) from your phone: 2570 codeable settings are defined across 8 modules; example settings: BSI2010Evo Multiplex Fuel Additive Pump, BSI2010Evo Steering Wheel-Mounted Switch, BSI2010Evo Seat Belt Reminder, BSI2010Evo Battery Charge Status Unit, BSI2010Evo Airbag, BSI2010Evo Motor Control Unit. An ELM327-based OBD2 adapter with Bluetooth Low Energy (BLE) is all you need; the app runs on iPhone, Android and Windows and is free to download.

Can I read fault codes on the Citroën C4 / ë-C4?

Yes. Besides standard OBD2 engine codes there are 7,087 manufacturer fault code descriptions for this make group; you can read and clear them.

Which adapter do I need?

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

Related pages

Get CarCoding

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

App Store Google Play

The app is free to download.