- Model years
- 2015–2018
- Coding modules
- 5
- Make-wide fault codes
- 20,644
CarCoding supports ECU coding and fault code reading for the Volkswagen Jetta NAR (2015–2018). On this vehicle, the app works with 5 coding modules, and the settings list is resolved at runtime from the unit's part number (ODX). Manufacturer fault code reading is backed by 20644 fault code descriptions.
Available example settings include One-touch turn signal (5 blinks), Turn signals front as parking light, Parking Light Front - Brightness, Parking Light Rear - Brightness, and Headlight Cleaning. Other examples are Headlight Cleaning - Splash Duration, Headlight Cleaning - Wiper Delay, and Teardrop Wiping Rear. The actual settings list is resolved at runtime from the unit's part number (ODX).
Supported coding modules
On Volkswagen Group cars the setting list is resolved from the car: CarCoding reads the unit's part number and fetches the matching ODX bit map at runtime. The list you see is the one your unit actually carries.
Body and comfort
Instrument cluster
Safety and driver assistance
Fault codes for this make
There are 20,644 manufacturer fault code descriptions for Volkswagen · Seat · Skoda · Cupra. Open a code block and read what your code means.
Frequently asked questions
Which app can do ECU coding on the Volkswagen Jetta NAR (2015-2018)?
CarCoding does ECU coding on the Volkswagen Jetta NAR (2015-2018) (2015–2018) from your phone: the setting list is resolved at runtime from your unit's part number; example settings: One-touch turn signal (5 blinks), Turn signals front as parking light, One-touch turn signal, Parking Light Front - Brightness, Parking Light Rear - Brightness, Parking Light - Outer Tail Lights. 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 Volkswagen Jetta NAR (2015-2018)?
Yes. Besides standard OBD2 engine codes there are 20,644 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?
- Plug an ELM327-compatible OBD2 adapter into the car.
- Open CarCoding and connect to the adapter over Bluetooth.
- Pick the make and model — or let the VIN identify it.
- 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.
The app is free to download.