What is car coding?
Car coding means changing the configuration values stored in a vehicle's control units (ECUs) to enable, disable or adjust features that were switched off or set differently at the factory. Engine calibration maps are not changed.
Coding vs. chip tuning
Chip tuning changes engine calibration maps; CarCoding does not do chip tuning or odometer correction.
- ToyotaPanic Function (Wireless Door Lock), Wireless Control, Hazard Answer Back
- VolkswagenSteering side of vehicle, Acoustic feedback if stored by radio key, Easy Entry Front
- FordExtended Play Time, Clock Master, CAN Steering Wheel Control Switches
- LexusPanic Function (Wireless Door Lock), Wireless Control, Hazard Answer Back
- BMWUs Sidemarker, Indicator, Coming Home
- AudiLane keeping assist, Headlight washer, Easy entry (seat moves back on exit)
- HyundaiBuzzer on arm/disarm, Escort lights, Door lock sound
- RenaultDashboard backlight always on, Dashboard language, Trip computer display
ECU coding guide for every make →
How to do it from your phone
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.
Make groups with coding support
- Write: BMW, PSA, FCA / Stellantis, Toyota · Lexus, VAG (VW·Audi·Škoda·Seat·Cupra), Nissan (X-Trail T32), Haval (Jolion·H6³·Dargo), Chery (Tiggo 7/8 Pro), Lada (Vesta NG)
- Read: Renault · Dacia, Ford · Lincoln, Kia · Hyundai · Genesis, Subaru
Frequently asked questions
What is car coding?
Car coding means changing the configuration values stored in a vehicle's control units (ECUs) to enable, disable or adjust features that were switched off or set differently at the factory. Engine calibration maps are not changed.
Coding vs. chip tuning
Chip tuning changes engine calibration maps; CarCoding does not do chip tuning or odometer correction.
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.
Get CarCoding
Connect your ELM327 adapter, read fault codes, and browse module settings on supported vehicles.
The app is free to download.