OBD High Tech

Your car warns Start listening

Warning light on? Read the fault code with an ELM327 adapter, or look it up in our apps. 20 Android apps for drivers, mechanics and locksmiths.

Get the apps on Google Play

What's going on with your car?

Scanners · 9 apps

Read the code

Plug an ELM327 adapter into your car's OBD2 port and connect from your phone. Connection type varies by app.

Service guides · 6 apps

Do the job

Procedures and reference information you can follow in the garage. These apps don't need an adapter.

Radio and security codes · 5 apps

Unlock it

Get a code from the serial number of a device you own or are authorized to service.

Three steps, with the car parked somewhere safe

Start scanning

  1. Plug in the adapter

    Fit an ELM327 adapter into the OBD2 port, usually under the dashboard, then switch the ignition on.

  2. Connect your phone

    Pair the adapter in your phone's settings, or join its Wi-Fi network, depending on the adapter.

  3. Read the car

    Open the app, connect to the adapter and start a scan.

Stuck? Ask us

Tell us which app you use, your phone model and your adapter.

oht.help@gmail.com